Abstract
C10H16Cl4MnN2, monoclinic, P21 (no. 4), a = 7.28276(7) Å, b = 13.22972(12) Å, c = 8.01007(7) Å, β = 97.5018(9)°, V = 765.155(12) Å3, Z = 2, Rgt(F) = 0.0165, wRref(F2) = 0.0392, T = 123(2) K.
The crystal structure is shown in the figure. Tables 1 and 2 contain details on crystal structure and measurement conditions and a list of the atoms including atomic coordinates and displacement parameters.
Data collection and handling.
Crystal: | Orange block |
Size: | 0.30 × 0.25 × 0.20 mm |
Wavelength: | Mo Kα radiation (0.71073 Å) |
μ: | 1.54 mm−1 |
Diffractometer, scan mode: | Xcalibur EOS, φ and ω |
θmax, completeness: | 33.0°, 99.9% |
N(hkl)measured, N(hkl)unique, Rint: | 71011, 5732, 0.028 |
Criterion for Iobs, N(hkl)gt: | Iobs > 2 σ(Iobs), 5628 |
N(param)refined: | 177 |
Programs: | CysAlisPRO [1], SHELX [2], [3], [5], Diamond [4] |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).
Atom | x | y | z | Uiso*/Ueq |
---|---|---|---|---|
Mn1 | 0.32138(3) | 0.56787(2) | 0.78135(3) | 0.01796(4) |
Cl1 | 0.63760(4) | 0.57171(3) | 0.73648(4) | 0.02380(7) |
Cl2 | 0.24580(5) | 0.41570(3) | 0.91492(4) | 0.01983(6) |
Cl3 | 0.15892(6) | 0.58125(3) | 0.50813(5) | 0.02755(8) |
Cl4 | 0.26215(5) | 0.69852(3) | 0.96716(5) | 0.02232(7) |
N1 | 0.93931(19) | 0.51775(11) | 0.10996(16) | 0.0214(2) |
H1 | 1.030(3) | 0.5036(17) | 0.065(3) | 0.028(6)* |
C2 | 0.8661(2) | 0.43985(11) | 0.18597(18) | 0.0205(3) |
H2 | 0.919351 | 0.374468 | 0.182410 | 0.025(5)* |
C3 | 0.7134(2) | 0.45432(11) | 0.26949(17) | 0.0178(2) |
C4 | 0.6383(2) | 0.55152(11) | 0.26899(19) | 0.0211(3) |
H4 | 0.532569 | 0.563744 | 0.324137 | 0.028(5)* |
C5 | 0.7167(2) | 0.63026(12) | 0.1886(2) | 0.0229(3) |
H5 | 0.665440 | 0.696298 | 0.188317 | 0.027(5)* |
C6 | 0.8705(2) | 0.61143(13) | 0.10902(19) | 0.0226(3) |
H6 | 0.926805 | 0.664568 | 0.054143 | 0.031(6)* |
N1′ | 0.68258(17) | 0.37281(9) | 0.54476(15) | 0.0168(2) |
H1′ | 0.654(3) | 0.4364(17) | 0.576(3) | 0.024(5)* |
C2′ | 0.6350(2) | 0.36628(11) | 0.35596(17) | 0.0186(2) |
H2′ | 0.690727 | 0.302835 | 0.316922 | 0.027(5)* |
C3′ | 0.4238(2) | 0.35425(14) | 0.3303(2) | 0.0258(3) |
H3′A | 0.384833 | 0.307045 | 0.236484 | 0.034(6)* |
H3′B | 0.362956 | 0.420324 | 0.304188 | 0.029(6)* |
C4′ | 0.3718(2) | 0.31201(13) | 0.49672(19) | 0.0216(3) |
H4′A | 0.289614 | 0.359596 | 0.546998 | 0.029(6)* |
H4′B | 0.307470 | 0.246288 | 0.477812 | 0.029(6)* |
C5′ | 0.5542(2) | 0.29908(11) | 0.61151(19) | 0.0199(3) |
H5′A | 0.539048 | 0.314897 | 0.729745 | 0.029(6)* |
H5′B | 0.601195 | 0.229118 | 0.605786 | 0.028(6)* |
C6′ | 0.8808(2) | 0.35485(13) | 0.6083(2) | 0.0277(3) |
H6′A | 0.919656 | 0.289797 | 0.566079 | 0.035(6)* |
H6′B | 0.897274 | 0.353821 | 0.731730 | 0.041(7)* |
H6′C | 0.956249 | 0.409100 | 0.569160 | 0.038(7)* |
Source of materials
In a representative experiment 0.161 mL (0.162 g; 1 mmol) S-nicotine ((S)-3-[1-methylpyrrolidin-2-yl]pyridine) were dissolved in a few drops of concentrated hydrochloric acid. To this solution 0.126 g (1 mmol) of MnCl2 were added. This mixture was heated to 80 °C, resulting in a orange coloured solution. Crystals of the title compound were obtained by slow evaporation at room temperature within a few days.
Experimental details
Coordinates of hydrogen atoms attached to nitrogen were refined without any constraints or restraints. The carbon-bound hydrogen atoms were placed using a riding model (AFIX 13/23/43/137) implemented in the SHELXL system [3]. For all hydrogen atoms Uiso parameters were refined freely.
The absolute structure determination succeeded as the derived Flack parameter is found to be near zero with a low standard uncertainty [−0.007(7) from 2650 selected quotients] using Parsons’ method [5]. The classical calculation of the Flack parameter showed a similar result [−0.009(10) using all reflections] [3], [5].
Comment
A Cambridge Structural Database [6] survey was performed on nicotine-containing structures. Many of the about fifty structures are metal complexes, which contain neutral nicotine molecules as ligands [7], [8], [9]. There is also a small number of structurally-characterized cocrystals containing neutral nicotine as one of the components [10]. Only a very limited number of nicotinium salts have been characterized and further investigated by diffraction methods. Some examples for pyrrolidin-protonated nicotinium cations were found in salts [11] and as cation ligands [12]. However, as a result of the database survey specified above, only five examples of salt structures containing doubly protonated nicotinium cations have been reported so far [13], [14], [15], [16], [17]. This contribution is part of my continuing interest in synthesis, characterization and understanding of hydrogen-bonding schemes of salts of natural products [16], [17], [18], [19], [20].
The asymmetric unit of the title structure contains one 3-((1R,2S)-1-methylpyrrolidin-1-ium-2-yl)pyridin-1-ium (nicotin-1,1′-dium) dication (nicH2) and one tetrachloridomanganate(II) dianion.
As discussed in one of my preceding contributions [16], the protonation at the nitrogen atom of the pyrrolinyl moiety leads to a second chiral center at N2 (cf. the figure), which shows R configuration in accord with the literature [16], [17]. Protonation leading to a R configuration at the nitrogen atom of the pyrrolinyl moiety seems to be the predominant reaction path.
The four carbon atoms of the pyrrolidinyl moiety are almost planar (RMS deviation = 0.005 Å). This plane encloses an angle of 65.43(7)° with the mean plane of the pyridinyl group. This parameter seems to be variable in different crystal structures and is more or less a consequence of the packing and hydrogen-bonding schemes, respectively. The bond lengths and angles within the nicH2 dication [17] as well as those in the [MnCl4]2− ion [21] are perfectly in the expected ranges.
Each nicH2 forms two classical, charge supported NH⋯Cl hydrogen bonds to two adjacent tetrachloridomanganate(II) anions (cf. the figure; N1⋯Cl2a = 3.1868(14) Å (a = 1 − x, y, −1 + z); N1′⋯Cl1 = 3.0857(13) Å) to form a chain structure along the direction [1 0 1̄]. The differences in these two bonding parameters are also seen in the lengths of the H⋯Cl hydrogen bonds, indicating slightly different strengths.
The variation of the Mn—Cl bond lengths are in a narrow range but their differences are in excellent agreement with the hydrogen-bonding scheme of the title structure. The two chlorido ligands Cl1 and Cl2, which are involved in hydrogen bonds, show Mn—Cl distances of 2.3773(4) Å and 2.3780(4) Å, respectively. The Mn—Cl bond length of Cl3 and Cl4 are, as expected, slightly shortened (Mn1—Cl3 = 2.3547(4) Å; Mn1—Cl4 = 2.3571(4) Å).
Acknowledgements
I gratefully acknowledge support by the Ministry of Innovation, Science and Research of North-Rhine Westphalia and the German Research Foundation (DFG) for financial support (Xcalibur diffractometer; INST 208/533-1). I want to thank A. Sergeeva for technical support.
References
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©2019 Guido J. Reiss, published by De Gruyter, Berlin/Boston
This work is licensed under the Creative Commons Attribution 4.0 Public License.
Artikel in diesem Heft
- Frontmatter
- Synthesis and crystal structure of bis{5-fluorine-2-(((4-(1-(methoxy-imino)ethyl)phenyl) imino)methyl)phenolato-κ2N,O}copper(II), C32H28CuF2N4O4
- Redetermination of the crystal structure of N′-(3-ethoxy-2-hydroxybenzylidene)-4-fluorobenzohydrazide monohydrate, C16H17FN2O4
- The crystal structure of (E)-N′-(1-(3-chloro-4-fluorophenyl) ethylidene)-2-hydroxybenzohydrazide, C15H12ClFN2O2
- Crystal structure of (E)-N-[4-(1H)-imidazolyl phenyl]-(2-methylphenyl)methanimine, C17H15N3
- The crystal structure of 1-benzyl-4-(2-(phenylethynyl)phenyl)-1H-1,2,3-triazole, C23H17N3
- Crystal structure of catena-poly[{μ2-1,5-bis(diphenylphosphanyl)pentane-κ2P:P′}dichloridocadmium(II)], C29H30CdCl2P2
- Crystal structure of methyl (E)-N2-((3-methylquinolin-8-yl)sulfonyl)-Nω′-nitro-L-argininate - ethanol (1/1), C19H28N6O7S
- The crystal structure of trans-carbonyl-(diphenylcyclohexyl-phosphine-κP)iodidomethyl-(2-oxopyridin-1(2H)-olato-κ2O,O′)rhodium(III), C25H28INO3PRh
- Crystal structure of N-(amino(pyrazin-2-yl)methylene)-6-methylpyridin-1-ium-3-carbohydrazonate-κ3O,N,N′)-(dinitrato-κ1O)zinc(II), C12H12N8O7Zn
- The crystal structure of dichlorido-(tris(2-benzimidazolylmethyl)amine-κ4N,N′,N′′,N′′′)chromium(III) chloride — methanol (1/3), CrC27H33Cl3N7O3
- Crystal structure of catena-poly[aqua(μ4-piperazine-1,4-bis(2-hydroxypropanesulfonato-κ8O,O′:O′,N:N′,O′′:O′′,O′′′))silver(I)], C10H24Ag2N2O10S2
- Crystal structure of bis(μ3-oxido)-bis(μ2–2,3,4,5-tetrafluorobenzoato-κ2O:O′)-bis(2,3,4,5-tetrafluorobenzoato-κO)-oktakis(3-chlorobenzyl-κC)tetratin(IV), C84H52Cl8F16O10Sn4
- Crystal structure of (E)-1-{4-[(4-fluoro-2-hydroxybenzylidene)amino]phenyl}ethanone O-methyl oxime, C16H15FN2O2
- Crystal structure of catena-[(bis(O,O′-diethyl dithiophosphato-S,S′)-μ2-1,2-bis(3-pyridylmethylene)hydrazine-N,N′)zinc(II)], {C20H30N4O4P2S4Zn}n
- Crystal structure of methyl 2-(4-(3-iodopyrazolo[1,5-a]pyrimidin-6-yl)phenyl)acetate, C15H12IN3O2
- Crystal structure of hexacarbonyl-(μ2-methanoato-k2O:O′)-(μ2–bis(di-p-tolylphosphino)cyclohexylamine-κ2P:P′)dirhenium(I), C42H45NO8P2Re2
- The cocrystal structure of 1′-hydroxy-1H,1′H-[5,5′-bitetrazol]-1-olate and 1,10-phenanthrolin-1-ium, C14H10N10O2
- The crystal structure of 1-benzyl-2-((4-(tert-butyl)phenyl)ethynyl)pyridin-1-ium bromide,C24H24BrN
- Crystal structure of (5,5′-bitetrazole-1,1′-diolate)-bis(1,10-phenanthroline)-copper(II), C26H16CuN12O2
- Crystal structure of bis(ammonium) diaqua-tetrakis(4-hydroxybenzoato)-manganese(II) tetrahydrate, [NH4]2[C28H24MnO14] ⋅ 4(H2O)
- The crystal structure of 3-chloro-1-hydrazino-2,4,6-trinitrobenzene, C6H4ClN5O6
- Crystal structure of catena-[(μ2-pyrazine-κ2N:N′)-bis(O,O′-di-ethyldithiophosphato-κ2S,S′)cadmium(II)], {C12H24CdN2O4P2S4}n
- Crystal structure of catena-poly[(μ2-pyrazine-N,N′)-bis(O,O′-di-isopropyldithiophosphato-S,S′)cadmium(II) acetonitrile di-solvate], [C16H32CdN2O4P2S4⋅2(C2H3N)]n
- Crystal structure of catena-poly{(μ2-N1,N2-bis[(pyridin-4-yl)methyl]ethanediamide-κ2N:N′)-bis(O,O′-di-isopropyldithiophosphato-κ1S)zinc(II)} — acetonitrile (1/1), C26H42N4O6P2S4Zn⋅C2H3N
- Crystal structure of tetraqua-bis(4-(hydroxymethyl)benzoato-κO)cobalt(II), C16H22O10Co
- Crystal structure of catena-[(bis(O,O′-diethyl dithiophosphato-S,S′)-μ2-1,2-bis(4-pyridylmethylene)hydrazine-N,N′)cadmium(II)], {C20H30CdN4O4P2S4}n
- Crystal structure of catena-poly[(μ2-1,2-bis(3-pyridylmethylene)hydrazine-κ2N:N′)-bis(O,O′-dimethyl dithiophosphato-κ2-S,S′)cadmium(II)], {C16H22CdN4O4P2S4}n
- Crystal structure of catena-poly[(bis(O,O′-diethyl dithiophosphato-κ2S,S′)-μ2-1,2-bis(3-pyridylmethylene)hydrazine-κ2N:N′)cadmium(II)], {C20H30CdN4O4P2S4}n
- The crystal structure of catena-poly[(E)-2-(((5-((trimethylstannyl)thio)-1,3,4-thiadiazol-2-yl)imino)methyl)phenol], C12H15N3OS2Sn
- Crystal structure of dichlorido(N-o-tolyl-1,1-di-p-tolylphosphanamine–κ1P)-(methoxydi-p-tolylphosphane-κ1P)palladium(II), C36H39Cl2NOP2Pd
- The crystal structure of the triclinic polymorph of hexameric (trimethylsilyl)methyllithium, C24H66Li6Si6
- Crystal structure of bis(hydroxydi(pyridin-2-yl)methanolato-κ3N,N′O)cobalt(III) 7,7,8,8-tetracyanoquinodimethane, C34H22CoN8O4
- Synthesis and crystal structure of benzyl 5-oxo-5-phenyl-2-(quinolin-2-yl)pentanoate, C27H23NO3
- Crystal structure of 5,5-dimethyl-3-oxocyclohex-1-en-1-yl 4-(2,2-dichloroacetyl)-3,4-dihydro-2 H-benzo[b][1,4]oxazine-7-carboxylate, C19H19Cl2NO5
- Crystal structure of dipentyl 2,5-dihydroxycyclohexa-1,4-diene-1,4-dicarboxylate, C18H28O6
- The crystal structure of catena-poly[diaqua-(μ4-5-(benzo[d]thiazol-2-yl)benzene-1,3-dicarboxylate-κ4O,O′:O′′,O′′′)-(μ4-5-(benzo[d]thiazol-2-yl)benzene-1,3-dicarboxylate-κ4O,O′:O′′,O′′′)dicadmium(II)], C30H18Cd2N2O10S2
- Crystal structure of 2,7-diiodo-1,3,6,8-tetramethyl-bis(difluoroboron)-1,2-bis((1H-pyrrol-2-yl)methylene)hydrazine, C14H14B2F4I2N4
- A dinuclear Eu(III) complex in the crystal structure of dodecaaqua-bis(μ2-4-(1H-tetrazol-5-yl)benzoato-κ2O:O′) bis(5-(4-carboxylatophenyl)tetrazol-1-ide) tetrahydrate, C32H50Eu2N16O24
- Crystal structure and anti-inflammatory activity of (3E,5E)-3-(2-fluorobenzylidene)-1-((4-fluorophenyl)sulfonyl)-5-(pyridin-3-ylmethylene)piperidin-4-one, C24H18F2N2O3S
- Crystal structure and anti-inflammatory activity of (3E,5E)-3-(2-fluorobenzylidene)-1-((4-acetamidophenyl)sulfonyl)-5-(pyridin-3-ylmethylene)piperidin-4-one-methanol-hydrate (2/1/1), C53H50F2N6O10S2
- Crystal structure of 4-dimethylamino-pyridin-1-ium uracil-1-acetate, C13H16N4O4
- Crystal structure of dimethylammonium 5-fluorouracil-1-acetate, C8H12N3O4F
- Crystal structure of bis(N′-((5-(ethoxycarbonyl)-1H-pyrrol-2-yl)methylene)-N-ethylcarbamohydrazonothioato-κ2N,O)nickel(II), C22H30N8O4S2Ni
- Crystal structure of chlorido-(η5-pentamethylcyclopentadienyl)-((bis-pyrazol-1-yl)methane-κ2N,N′) rhodium(III) hexafluorophosphate. (C17H23ClN4RhF6P)
- The crystal structure of 5-(benzofuran-2-carbonyl)-N-cyclohexyl-5,6-dihydrophenanthridine-6-carboxamide, C29H26N2O3
- The crystal structure of 2-oxo-2H-chromen-4-yl acetate, C11H8O4
- The crystal structure of 2-nitroisophthalic acid, C8H5NO6
- Crystal structure of 3-fluoro-9-methoxy-4b,5,14,15-tetrahydro-6H-isoquinolino [2′,1′:1,6]pyrazino[2,3-b]quinoxaline, C19H17FN4O
- Crystal structure of (4-fluorobenzyl-κC)(bis(2-hydroxyethyl) carbamodithioato-κ2S,S′)(2,2′-imino-diethanolato-κ3N,O,O′)tin(IV), C16H25FN2O4S2Sn
- Crystal structure and anti-inflammatory activity of (3E,5E)-1-((4-bromophenyl)sulfonyl)-3-(pyridin-4-ylmethylene)-5-(2-(trifluoromethyl)benzylidene)piperidin-4-one, C25H18BrF3N2O3S
- Crystal structure and anti-inflammatory activity of (3E,5E)-1-((4-chlorophenyl)sulfonyl)-3-(pyridin-4-ylmethylene)-5-(2-(trifluoromethyl)benzylidene)piperidin-4-one, C25H18ClF3N2O3S
- The crystal structure of 3-((1R,2S)-1-methylpyrrolidin-1-ium-2-yl)pyridin-1-ium tetrachloridomanganate(II), C10H16Cl4MnN2
- The crystal structure of 3-carboxy-5-methylpyridin-1-ium-2-carboxylate, C8H7NO4
- Crystal structure of bis(3-methoxy-N-(1-(pyridin-2-yl)ethylidene)benzohydrazonato κ3O,N,N′)zinc(II), C30H28N6O4Zn
- Crystal structure of dichlorido-(4,4′-dichloro-2,2′-bipyridine-κ2N,N′)platinum(II) — acetone (1/1), C13H12Cl4N2PtO
- Crystal structure of diethyl 6,12-bis(4-fluorophenyl)-2,10-dimethoxy-3,9-diphenyl-3,9-diazatetracyclo[6.4.0.02,7.04,11]dodecane-1,5-dicarboxylate, C42H42F2N2O6
- Synthesis and crystal structure of (1E,3E)-2-hydroxy-5-methylisophthalaldehyde O,O-di(2-((((E)-(2-hydroxynaphthalen-1-yl)methylene)amino)oxy)ethyl) dioxime, C35H32N4O7
- The crystal structure of 2-phenyl-4,6-bis(prop-2-yn-1-yloxy)-1,3,5-triazine, C15H11N3O2
- Crystal structure of 7-(2-{4-[(4-bromophenyl)methyl]piperazin-1-yl}ethoxy)-2H-chromen-2-one, C22H23BrN2O3
- Crystal structure of bis-[N-(3-ethyl-1-pyrazin-2-yl-ethylidene)-3-bromo-benzoic acid-hydrazonato-κ3O,N,N′)]-cadmium(II), C30H28N8O2Br2Cd
- Crystal structure of 6-(4-fluorophenyl)-4-methoxy-2H-pyran-2-one, C12H9FO3
- Crystal structure of 3-methyl-3-(2,4,5-trimethyl-3,6-dioxocyclohexa-1,4-dien-1-yl)butanoic acid, C14H18O4
- The crystal structure of 3-bromo-6-methoxy-2-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine, C13H19BBrNO3
- The crystal structure of 6-methyl-3,20-dioxo-19-norpregna-4,6-dien-17-yl acetate–2,4-dihydroxybenzoic acid (1/1), C30H36O8
- The crystal structure of (5-chloro-2-hydroxy-N-(4-methoxy-2-oxidobenzylidene)benzohydrazonato-κ3N,O,O′)-(pyridine-κ1N)copper(II), C20H16ClCuN3O4
- Crystal structure of (E)-2-cyano-N′-(1-(3-ethylpyrazin-2-yl)ethylidene)acetohydrazide, C11H3N5O
- Crystal structure of (2,7-dihexyl-9,9-dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphane), C51H56OP2
- Crystal structure of 5-((bis(pyridin-2-ylmethyl)amino)methyl)quinolin-8-ol, C22H20N4O
- Crystal structure of 3-(2-(5-(4-fluorophenyl)-3-(4-methylphenyl)-4,5-dihydro-1H-pyrazol-1-yl)thiazol-4-yl)-2H-chromen-2-one, C28H20FN3O2S
- The crystal structure of [(tetra-μ2-2,6-difluorobenzoato-κ2O:O′)-bis-(2,6-difluorobenzoato-κ2O:O′)-bis-(1,10-phenanthroline-κ2N:N′)]dierbium(III) C66H34N4O12F12Er2
- Crystal structure of bis(3-chloro-N-(1-(pyrazin-2-yl)ethylidene)benzohydrazonato-k3N,N′,O)nickel(II), C26H20N8O2Cl2Ni
- Crystal structure of (E)-3-(3-(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazol-4-yl)-1-phenylprop-2-en-1-one, C27H21N5O
- Crystal structure of (E)-N′-((4-aminophenyl)sulfonyl)-N,N-dimethylformimidamide, C9H13N3O2S
- Crystal structure of η6-p-cymene-iodido-(N-isopropyl-1-(pyridin-2-yl)methanimine-κ2N,N′)ruthenium(II) hexafluorophosphate(V), C19H26IN2F6Ru
- Crystal structure of 6-iodo-3-phenyl-2-propylquinazolin-4(3H)-one, C17H15IN2O
- Low temperature redetermination of the crystal structure of catena-poly[[tri-4-fluorobenzyltin(IV)]μ2-pyridine-4-carboxylato-κ2N:O], {C27H22F3NO2Sn}n
- Crystal structure of bis(2-propyl-1H-benzo[d]imidazol-3-ium) tetrachloridozincate(II), C10H13Cl4N2Zn
- The crystal structure of (Z)-3-hydrazono-5-nitroindolin-2-one – dimethyl sulfoxide (1/1), C8H6N4O3
- Crystal structure of bis-[N-(1-pyrazin-2-yl-ethylidene)-cyanoacetic acid-hydrazonato-κ3O,N,N′)]-zinc(II), C18H16N10O2Zn
- Crystal structure and photochromism of 1-(2,5-dimethyl-3-thienyl)-2-[2-methyl-5-(benzaldoxime)-3-thienyl] perfluorocyclopentene, C23H17F6NOS2
Artikel in diesem Heft
- Frontmatter
- Synthesis and crystal structure of bis{5-fluorine-2-(((4-(1-(methoxy-imino)ethyl)phenyl) imino)methyl)phenolato-κ2N,O}copper(II), C32H28CuF2N4O4
- Redetermination of the crystal structure of N′-(3-ethoxy-2-hydroxybenzylidene)-4-fluorobenzohydrazide monohydrate, C16H17FN2O4
- The crystal structure of (E)-N′-(1-(3-chloro-4-fluorophenyl) ethylidene)-2-hydroxybenzohydrazide, C15H12ClFN2O2
- Crystal structure of (E)-N-[4-(1H)-imidazolyl phenyl]-(2-methylphenyl)methanimine, C17H15N3
- The crystal structure of 1-benzyl-4-(2-(phenylethynyl)phenyl)-1H-1,2,3-triazole, C23H17N3
- Crystal structure of catena-poly[{μ2-1,5-bis(diphenylphosphanyl)pentane-κ2P:P′}dichloridocadmium(II)], C29H30CdCl2P2
- Crystal structure of methyl (E)-N2-((3-methylquinolin-8-yl)sulfonyl)-Nω′-nitro-L-argininate - ethanol (1/1), C19H28N6O7S
- The crystal structure of trans-carbonyl-(diphenylcyclohexyl-phosphine-κP)iodidomethyl-(2-oxopyridin-1(2H)-olato-κ2O,O′)rhodium(III), C25H28INO3PRh
- Crystal structure of N-(amino(pyrazin-2-yl)methylene)-6-methylpyridin-1-ium-3-carbohydrazonate-κ3O,N,N′)-(dinitrato-κ1O)zinc(II), C12H12N8O7Zn
- The crystal structure of dichlorido-(tris(2-benzimidazolylmethyl)amine-κ4N,N′,N′′,N′′′)chromium(III) chloride — methanol (1/3), CrC27H33Cl3N7O3
- Crystal structure of catena-poly[aqua(μ4-piperazine-1,4-bis(2-hydroxypropanesulfonato-κ8O,O′:O′,N:N′,O′′:O′′,O′′′))silver(I)], C10H24Ag2N2O10S2
- Crystal structure of bis(μ3-oxido)-bis(μ2–2,3,4,5-tetrafluorobenzoato-κ2O:O′)-bis(2,3,4,5-tetrafluorobenzoato-κO)-oktakis(3-chlorobenzyl-κC)tetratin(IV), C84H52Cl8F16O10Sn4
- Crystal structure of (E)-1-{4-[(4-fluoro-2-hydroxybenzylidene)amino]phenyl}ethanone O-methyl oxime, C16H15FN2O2
- Crystal structure of catena-[(bis(O,O′-diethyl dithiophosphato-S,S′)-μ2-1,2-bis(3-pyridylmethylene)hydrazine-N,N′)zinc(II)], {C20H30N4O4P2S4Zn}n
- Crystal structure of methyl 2-(4-(3-iodopyrazolo[1,5-a]pyrimidin-6-yl)phenyl)acetate, C15H12IN3O2
- Crystal structure of hexacarbonyl-(μ2-methanoato-k2O:O′)-(μ2–bis(di-p-tolylphosphino)cyclohexylamine-κ2P:P′)dirhenium(I), C42H45NO8P2Re2
- The cocrystal structure of 1′-hydroxy-1H,1′H-[5,5′-bitetrazol]-1-olate and 1,10-phenanthrolin-1-ium, C14H10N10O2
- The crystal structure of 1-benzyl-2-((4-(tert-butyl)phenyl)ethynyl)pyridin-1-ium bromide,C24H24BrN
- Crystal structure of (5,5′-bitetrazole-1,1′-diolate)-bis(1,10-phenanthroline)-copper(II), C26H16CuN12O2
- Crystal structure of bis(ammonium) diaqua-tetrakis(4-hydroxybenzoato)-manganese(II) tetrahydrate, [NH4]2[C28H24MnO14] ⋅ 4(H2O)
- The crystal structure of 3-chloro-1-hydrazino-2,4,6-trinitrobenzene, C6H4ClN5O6
- Crystal structure of catena-[(μ2-pyrazine-κ2N:N′)-bis(O,O′-di-ethyldithiophosphato-κ2S,S′)cadmium(II)], {C12H24CdN2O4P2S4}n
- Crystal structure of catena-poly[(μ2-pyrazine-N,N′)-bis(O,O′-di-isopropyldithiophosphato-S,S′)cadmium(II) acetonitrile di-solvate], [C16H32CdN2O4P2S4⋅2(C2H3N)]n
- Crystal structure of catena-poly{(μ2-N1,N2-bis[(pyridin-4-yl)methyl]ethanediamide-κ2N:N′)-bis(O,O′-di-isopropyldithiophosphato-κ1S)zinc(II)} — acetonitrile (1/1), C26H42N4O6P2S4Zn⋅C2H3N
- Crystal structure of tetraqua-bis(4-(hydroxymethyl)benzoato-κO)cobalt(II), C16H22O10Co
- Crystal structure of catena-[(bis(O,O′-diethyl dithiophosphato-S,S′)-μ2-1,2-bis(4-pyridylmethylene)hydrazine-N,N′)cadmium(II)], {C20H30CdN4O4P2S4}n
- Crystal structure of catena-poly[(μ2-1,2-bis(3-pyridylmethylene)hydrazine-κ2N:N′)-bis(O,O′-dimethyl dithiophosphato-κ2-S,S′)cadmium(II)], {C16H22CdN4O4P2S4}n
- Crystal structure of catena-poly[(bis(O,O′-diethyl dithiophosphato-κ2S,S′)-μ2-1,2-bis(3-pyridylmethylene)hydrazine-κ2N:N′)cadmium(II)], {C20H30CdN4O4P2S4}n
- The crystal structure of catena-poly[(E)-2-(((5-((trimethylstannyl)thio)-1,3,4-thiadiazol-2-yl)imino)methyl)phenol], C12H15N3OS2Sn
- Crystal structure of dichlorido(N-o-tolyl-1,1-di-p-tolylphosphanamine–κ1P)-(methoxydi-p-tolylphosphane-κ1P)palladium(II), C36H39Cl2NOP2Pd
- The crystal structure of the triclinic polymorph of hexameric (trimethylsilyl)methyllithium, C24H66Li6Si6
- Crystal structure of bis(hydroxydi(pyridin-2-yl)methanolato-κ3N,N′O)cobalt(III) 7,7,8,8-tetracyanoquinodimethane, C34H22CoN8O4
- Synthesis and crystal structure of benzyl 5-oxo-5-phenyl-2-(quinolin-2-yl)pentanoate, C27H23NO3
- Crystal structure of 5,5-dimethyl-3-oxocyclohex-1-en-1-yl 4-(2,2-dichloroacetyl)-3,4-dihydro-2 H-benzo[b][1,4]oxazine-7-carboxylate, C19H19Cl2NO5
- Crystal structure of dipentyl 2,5-dihydroxycyclohexa-1,4-diene-1,4-dicarboxylate, C18H28O6
- The crystal structure of catena-poly[diaqua-(μ4-5-(benzo[d]thiazol-2-yl)benzene-1,3-dicarboxylate-κ4O,O′:O′′,O′′′)-(μ4-5-(benzo[d]thiazol-2-yl)benzene-1,3-dicarboxylate-κ4O,O′:O′′,O′′′)dicadmium(II)], C30H18Cd2N2O10S2
- Crystal structure of 2,7-diiodo-1,3,6,8-tetramethyl-bis(difluoroboron)-1,2-bis((1H-pyrrol-2-yl)methylene)hydrazine, C14H14B2F4I2N4
- A dinuclear Eu(III) complex in the crystal structure of dodecaaqua-bis(μ2-4-(1H-tetrazol-5-yl)benzoato-κ2O:O′) bis(5-(4-carboxylatophenyl)tetrazol-1-ide) tetrahydrate, C32H50Eu2N16O24
- Crystal structure and anti-inflammatory activity of (3E,5E)-3-(2-fluorobenzylidene)-1-((4-fluorophenyl)sulfonyl)-5-(pyridin-3-ylmethylene)piperidin-4-one, C24H18F2N2O3S
- Crystal structure and anti-inflammatory activity of (3E,5E)-3-(2-fluorobenzylidene)-1-((4-acetamidophenyl)sulfonyl)-5-(pyridin-3-ylmethylene)piperidin-4-one-methanol-hydrate (2/1/1), C53H50F2N6O10S2
- Crystal structure of 4-dimethylamino-pyridin-1-ium uracil-1-acetate, C13H16N4O4
- Crystal structure of dimethylammonium 5-fluorouracil-1-acetate, C8H12N3O4F
- Crystal structure of bis(N′-((5-(ethoxycarbonyl)-1H-pyrrol-2-yl)methylene)-N-ethylcarbamohydrazonothioato-κ2N,O)nickel(II), C22H30N8O4S2Ni
- Crystal structure of chlorido-(η5-pentamethylcyclopentadienyl)-((bis-pyrazol-1-yl)methane-κ2N,N′) rhodium(III) hexafluorophosphate. (C17H23ClN4RhF6P)
- The crystal structure of 5-(benzofuran-2-carbonyl)-N-cyclohexyl-5,6-dihydrophenanthridine-6-carboxamide, C29H26N2O3
- The crystal structure of 2-oxo-2H-chromen-4-yl acetate, C11H8O4
- The crystal structure of 2-nitroisophthalic acid, C8H5NO6
- Crystal structure of 3-fluoro-9-methoxy-4b,5,14,15-tetrahydro-6H-isoquinolino [2′,1′:1,6]pyrazino[2,3-b]quinoxaline, C19H17FN4O
- Crystal structure of (4-fluorobenzyl-κC)(bis(2-hydroxyethyl) carbamodithioato-κ2S,S′)(2,2′-imino-diethanolato-κ3N,O,O′)tin(IV), C16H25FN2O4S2Sn
- Crystal structure and anti-inflammatory activity of (3E,5E)-1-((4-bromophenyl)sulfonyl)-3-(pyridin-4-ylmethylene)-5-(2-(trifluoromethyl)benzylidene)piperidin-4-one, C25H18BrF3N2O3S
- Crystal structure and anti-inflammatory activity of (3E,5E)-1-((4-chlorophenyl)sulfonyl)-3-(pyridin-4-ylmethylene)-5-(2-(trifluoromethyl)benzylidene)piperidin-4-one, C25H18ClF3N2O3S
- The crystal structure of 3-((1R,2S)-1-methylpyrrolidin-1-ium-2-yl)pyridin-1-ium tetrachloridomanganate(II), C10H16Cl4MnN2
- The crystal structure of 3-carboxy-5-methylpyridin-1-ium-2-carboxylate, C8H7NO4
- Crystal structure of bis(3-methoxy-N-(1-(pyridin-2-yl)ethylidene)benzohydrazonato κ3O,N,N′)zinc(II), C30H28N6O4Zn
- Crystal structure of dichlorido-(4,4′-dichloro-2,2′-bipyridine-κ2N,N′)platinum(II) — acetone (1/1), C13H12Cl4N2PtO
- Crystal structure of diethyl 6,12-bis(4-fluorophenyl)-2,10-dimethoxy-3,9-diphenyl-3,9-diazatetracyclo[6.4.0.02,7.04,11]dodecane-1,5-dicarboxylate, C42H42F2N2O6
- Synthesis and crystal structure of (1E,3E)-2-hydroxy-5-methylisophthalaldehyde O,O-di(2-((((E)-(2-hydroxynaphthalen-1-yl)methylene)amino)oxy)ethyl) dioxime, C35H32N4O7
- The crystal structure of 2-phenyl-4,6-bis(prop-2-yn-1-yloxy)-1,3,5-triazine, C15H11N3O2
- Crystal structure of 7-(2-{4-[(4-bromophenyl)methyl]piperazin-1-yl}ethoxy)-2H-chromen-2-one, C22H23BrN2O3
- Crystal structure of bis-[N-(3-ethyl-1-pyrazin-2-yl-ethylidene)-3-bromo-benzoic acid-hydrazonato-κ3O,N,N′)]-cadmium(II), C30H28N8O2Br2Cd
- Crystal structure of 6-(4-fluorophenyl)-4-methoxy-2H-pyran-2-one, C12H9FO3
- Crystal structure of 3-methyl-3-(2,4,5-trimethyl-3,6-dioxocyclohexa-1,4-dien-1-yl)butanoic acid, C14H18O4
- The crystal structure of 3-bromo-6-methoxy-2-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine, C13H19BBrNO3
- The crystal structure of 6-methyl-3,20-dioxo-19-norpregna-4,6-dien-17-yl acetate–2,4-dihydroxybenzoic acid (1/1), C30H36O8
- The crystal structure of (5-chloro-2-hydroxy-N-(4-methoxy-2-oxidobenzylidene)benzohydrazonato-κ3N,O,O′)-(pyridine-κ1N)copper(II), C20H16ClCuN3O4
- Crystal structure of (E)-2-cyano-N′-(1-(3-ethylpyrazin-2-yl)ethylidene)acetohydrazide, C11H3N5O
- Crystal structure of (2,7-dihexyl-9,9-dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphane), C51H56OP2
- Crystal structure of 5-((bis(pyridin-2-ylmethyl)amino)methyl)quinolin-8-ol, C22H20N4O
- Crystal structure of 3-(2-(5-(4-fluorophenyl)-3-(4-methylphenyl)-4,5-dihydro-1H-pyrazol-1-yl)thiazol-4-yl)-2H-chromen-2-one, C28H20FN3O2S
- The crystal structure of [(tetra-μ2-2,6-difluorobenzoato-κ2O:O′)-bis-(2,6-difluorobenzoato-κ2O:O′)-bis-(1,10-phenanthroline-κ2N:N′)]dierbium(III) C66H34N4O12F12Er2
- Crystal structure of bis(3-chloro-N-(1-(pyrazin-2-yl)ethylidene)benzohydrazonato-k3N,N′,O)nickel(II), C26H20N8O2Cl2Ni
- Crystal structure of (E)-3-(3-(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazol-4-yl)-1-phenylprop-2-en-1-one, C27H21N5O
- Crystal structure of (E)-N′-((4-aminophenyl)sulfonyl)-N,N-dimethylformimidamide, C9H13N3O2S
- Crystal structure of η6-p-cymene-iodido-(N-isopropyl-1-(pyridin-2-yl)methanimine-κ2N,N′)ruthenium(II) hexafluorophosphate(V), C19H26IN2F6Ru
- Crystal structure of 6-iodo-3-phenyl-2-propylquinazolin-4(3H)-one, C17H15IN2O
- Low temperature redetermination of the crystal structure of catena-poly[[tri-4-fluorobenzyltin(IV)]μ2-pyridine-4-carboxylato-κ2N:O], {C27H22F3NO2Sn}n
- Crystal structure of bis(2-propyl-1H-benzo[d]imidazol-3-ium) tetrachloridozincate(II), C10H13Cl4N2Zn
- The crystal structure of (Z)-3-hydrazono-5-nitroindolin-2-one – dimethyl sulfoxide (1/1), C8H6N4O3
- Crystal structure of bis-[N-(1-pyrazin-2-yl-ethylidene)-cyanoacetic acid-hydrazonato-κ3O,N,N′)]-zinc(II), C18H16N10O2Zn
- Crystal structure and photochromism of 1-(2,5-dimethyl-3-thienyl)-2-[2-methyl-5-(benzaldoxime)-3-thienyl] perfluorocyclopentene, C23H17F6NOS2