Home Physical Sciences 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
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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

  • Yee Seng Tan and Edward R.T. Tiekink ORCID logo EMAIL logo
Published/Copyright: November 14, 2019
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Zeitschrift für Kristallographie - New Crystal Structures
From the journal Zeitschrift für Kristallographie - New Crystal Structures Volume 235 Issue 2

Abstract

C20H30CdN4O4P2S4, triclinic, P1̄ (no. 2), a = 9.0764(3) Å, b = 9.3969(3) Å, c = 9.6964(3) Å, α = 86.516(3)°, β = 63.362(3)°, γ = 75.250(3)°, V = 713.50(4) Å3, Z = 1, Rgt(F) = 0.0166, wRref(F2) = 0.0462, T = 100(2) K.

CCDC no.: 1959871

Table 1 contains crystallographic data and Table 2 contains the list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal:Yellow prism
Size:0.22 × 0.14 × 0.11 mm
Wavelength:Cu Kα radiation (1.54184 Å)
μ:10.21 mm−1
Diffractometer, scan mode:XtaLAB Synergy, ω-scans
θmax, completeness:67.1°, >99%
N(hkl)measured, N(hkl)unique, Rint:15508, 2560, 0.021
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 2560
N(param)refined:162
Programs:CrysAlisPRO [1], SHELX [2], [3], WinGX and ORTEP [4]
Table 2:

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).

AtomxyzUiso*/Ueq
Cd0.5000000.5000001.0000000.01167(6)
S10.62710(5)0.21727(4)0.89421(5)0.01518(9)
S20.82782(5)0.48870(4)0.80199(5)0.01587(9)
P10.84648(5)0.27358(4)0.78453(5)0.01265(10)
O10.98987(15)0.17908(13)0.82879(14)0.0187(2)
O20.92541(14)0.21281(13)0.61007(13)0.0154(2)
N10.41685(17)0.56317(15)0.79881(15)0.0140(3)
N20.49294(19)0.93956(16)0.54745(17)0.0203(3)
C11.0169(2)0.2188(2)0.9563(2)0.0202(4)
H1A0.9274260.1986541.0558050.024*
H1B1.0128100.3249900.9578800.024*
C21.1894(2)0.1272(2)0.9325(2)0.0236(4)
H2A1.2162100.1571931.0119190.035*
H2B1.2756560.1418120.8300110.035*
H2C1.1887790.0228570.9402020.035*
C31.0940(2)0.2290(2)0.4983(2)0.0199(4)
H3A1.1796890.1841060.5355610.024*
H3B1.0915710.3346940.4844230.024*
C41.1388(2)0.1523(2)0.3478(2)0.0220(4)
H4A1.2555190.1528790.2734810.033*
H4B1.0597110.2036820.3069900.033*
H4C1.1302650.0501860.3650030.033*
C50.4415(2)0.68340(18)0.72021(19)0.0151(3)
H50.5000080.7430680.7414110.018*
C60.3846(2)0.72530(19)0.60771(19)0.0174(3)
C70.2985(2)0.6367(2)0.5781(2)0.0206(4)
H70.2587550.6612390.5021010.025*
C80.2717(2)0.5126(2)0.6608(2)0.0209(4)
H80.2123950.4513490.6431160.025*
C90.3327(2)0.47946(19)0.76937(19)0.0170(3)
H90.3144910.3940490.8256400.020*
C100.4139(2)0.8573(2)0.5218(2)0.0203(4)
H10A0.3737700.8821300.4460300.024*

Source of material

The Cd[S2P(OEt)2]2 precursor was prepared in high yield from the in situ reaction of Cd(NO3)2 ⋅ 4H2O (Acros Organic; 15.42 g, 0.05 mol), EtOH (Merck; 12.25 mL, 0.21 mol), P2S5 (Sigma-Aldrich; 11.11 g, 0.05 mol) and 50% w/w NaOH solution (Merck; 8.80 mL, 0.11 mol). The 1,2-bis(3-pyridylmethylene)hydrazine ligand was prepared in high yield from the 2:1 reaction (reflux) of 3-picolylamine (Aldrich; 2.03 mL, 0.02 mol) and hydrazinium hydroxide (Merck; 0.49 mL, 0.01 mol) in ethanol solution (Merck; 5 mL). The title compound was obtained by mixing a suspension of Cd[S2P(OEt)2]2 (0.50 g, 1.04 mmol) and 1,2-bis(3-pyridylmethylene)hydrazine (0.22 g, 1.05 mmol) in dimethylformamide (Merck; 5 mL), followed by stirring for 30 min. at 373 K. The solution was filtered and the filtrate collected in a sample vial containing acetonitrile (Merck; 1 mL). Yellow block crystals formed after one day. Yield: 0.39 g, (54.1%, based on Cd[S2P(OEt)2]2). M. pt (MelTemp Melting Point Apparatus): 426–428 K. Elem. Anal. (Leco TruSpec Micro CHN Elemental Analyser): Calc. for C20H30CdN4O4P2S4: C, 34.66; H, 4.36; N, 8.09%. Found: C, 34.51; H, 4.08; N, 8.31%. IR (Bruker Vertex 70 V equipped with Platinum ATR from 400 to 80 cm−1): 1192(w) ν(C—O); 1012(s) ν(P—O); 661(s) ν(P—S); 379(w) ν(Cd—N); 287(m) ν(Zn—S).

Experimental details

H atoms were geometrically placed (C—H = 0.95–0.99 Å) and refined as riding with Uiso(H) = 1.2–1.5Ueq(C).

Discussion

The potentially bidentate, bridging ligands, n-pyridylaldazines (n-PyAld), i.e. n-NC5H4C(H)=N—N=C(H)C5H4N-n, for n = 3 and 4, form one-dimensional coordination polymers in their 1:1 adducts with zinc(II) and cadmium(II) dithiophosphates [−S2P(OR)2] [5]. However, very different coordination geometries and topologies of the chains are found in these structures. Thus, for {Zn[S2P(OR)2](n-PyAld)}2, a distorted tetrahedral N2S2 coordination geometry and a twisted chain is found when n = 3 and R = Et [6]. By contrast, when n = 3 and R = isopropyl (iPr), a linear chain with a step-ladder topology and an octahedral trans-N2S4 donor set is found [7]. In the case when n = 4, and R = Et [8] and cyclohexyl (Cy) [9], zigzag coordination polymers are found but with tetrahedral N2S2 and octahedral cis-N2S4 donor sets, respectively. A greater homogeneity in the coordination polymers formed by cadmium(II) is noted in that trans-N2S4 donor sets are found. Thus, for {Cd[S2P(OR)2](n-PyAld)}2, when n = 3 and R = Me [10], iPr [11], [12] and Cy [13], linear coordination polymers, with a step-ladder topology, are found. When n = 4, and R = Et [14] and iPr [11], linear coordination polymers are found. However, it should be noted that zero-dimensional species are sometimes isolated when polymeric species might otherwise be anticipated. An example is seen in the structure of binuclear {Zn[S2P(O-iPr)2]2}2(4-PyAld) [15]. More intriguing are monodentate (terminal) modes of coordination of the 4-PyAld ligand have been noted in some dithiocarbamate (−S2CNR2) derivatives, namely Zn[S2CN(Me)CH2CH2OH]2(4-PyAld), with a square-pyramidal geometry based on a NS4 donor set [16] and Cd[S2CN(nPr)CH2CH2OH]2(4-PyAld)2 [n-propyl = nPr], with a trans-N2S4 donor set [17]. In continuation of systematic studies in this area, herein, the crystal and molecular structures of {Cd[S2P(OEt)2]2(3-PyAld)}n, (I), are described.

The cadmium(II) atom in (I) lies on a centre of inversion (the symmetry related dithiophosphate ligand is generated by the symmetry operation (i) 1 − x, 1 − y, 2 − z) and the 3-PyAld molecule is disposed about a centre of inversion (the other half of the 3-PyAld ligand is related by (ii) 1 − x, 2 − y, 1 − z). A view of the coordination geometry is shown in the figure (70% probability displacement ellipsoids) which highlights the trans-N2S4 donor set. While to a first approximation, the dithiophosphate ligands are symmetrically chelating to define a plane defined by four S atoms, there is a disparity of 0.026 Å in the Cd—S1 [2.6741(4) Å] and Cd—S2 [2.7003(4) Å] bond lengths. Nevertheless, the P1—S1, S2 [1.9862(6) and 1.9963(6) Å] differ by only 0.01 Å. Significantly, more symmetric coordination modes are noted in the R = Me [10] and iPr [12] analogues but, the situation in (I) matches that seen in the R = Cy structure [13] where the difference in the Cd—S bond lengths amounts to 0.021 Å. The Cd—N bond length is 2.3830(13) Å. The lack of systematic trends in the Zn, Cd—S, N bond lengths is well-known for these systems, even if control of polymer formation and topology was achieved [18], [19], [20]. The coordination geometry in (I) is defined by the trans-N2S4 donor set and is based on an octahedron with the maximum deviation from the ideal cis angle manifested in the acute S1—Cd—S2 chelate angle of 77.236(12)°.

The linear chain in (I), with a step-ladder topology, is parallel to [0 1 −1]. Chains are connected into a two-dimensional array by π⋯π stacking between pyridyl rings [inter-centroid separation for Cg(N1,C5–C9)⋯Cg(N1,C5–C9)iii = 3.6794(10) Å for (iii) 1 − x, 1 − y, 1 − z] and pyridyl-C—H⋯O(alkoxy) [C7—H7⋯O2iii: H7⋯O2iii = 2.42 Å, C7⋯O2iii = 3.318(2) Å with angle at H7 = 158°] interactions. Layers stack along [−2 2 1] and inter-digitate with sucessive layers but there are no directional interactions between them.

Acknowledgements

Sunway University Sdn Bhd is thanked for financial support of this work through Grant no. STR-RCTR-RCCM-001-2019.

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Received: 2019-09-05
Accepted: 2019-10-17
Published Online: 2019-11-14
Published in Print: 2020-02-25

©2019 Yee Seng Tan et al., published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution 4.0 Public License.

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  44. Crystal structure of bis(N′-((5-(ethoxycarbonyl)-1H-pyrrol-2-yl)methylene)-N-ethylcarbamohydrazonothioato-κ2N,O)nickel(II), C22H30N8O4S2Ni
  45. Crystal structure of chlorido-(η5-pentamethylcyclopentadienyl)-((bis-pyrazol-1-yl)methane-κ2N,N′) rhodium(III) hexafluorophosphate. (C17H23ClN4RhF6P)
  46. The crystal structure of 5-(benzofuran-2-carbonyl)-N-cyclohexyl-5,6-dihydrophenanthridine-6-carboxamide, C29H26N2O3
  47. The crystal structure of 2-oxo-2H-chromen-4-yl acetate, C11H8O4
  48. The crystal structure of 2-nitroisophthalic acid, C8H5NO6
  49. Crystal structure of 3-fluoro-9-methoxy-4b,5,14,15-tetrahydro-6H-isoquinolino [2′,1′:1,6]pyrazino[2,3-b]quinoxaline, C19H17FN4O
  50. Crystal structure of (4-fluorobenzyl-κC)(bis(2-hydroxyethyl) carbamodithioato-κ2S,S′)(2,2′-imino-diethanolato-κ3N,O,O′)tin(IV), C16H25FN2O4S2Sn
  51. 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
  52. 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
  53. The crystal structure of 3-((1R,2S)-1-methylpyrrolidin-1-ium-2-yl)pyridin-1-ium tetrachloridomanganate(II), C10H16Cl4MnN2
  54. The crystal structure of 3-carboxy-5-methylpyridin-1-ium-2-carboxylate, C8H7NO4
  55. Crystal structure of bis(3-methoxy-N-(1-(pyridin-2-yl)ethylidene)benzohydrazonato κ3O,N,N′)zinc(II), C30H28N6O4Zn
  56. Crystal structure of dichlorido-(4,4′-dichloro-2,2′-bipyridine-κ2N,N′)platinum(II) — acetone (1/1), C13H12Cl4N2PtO
  57. 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
  58. 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
  59. The crystal structure of 2-phenyl-4,6-bis(prop-2-yn-1-yloxy)-1,3,5-triazine, C15H11N3O2
  60. Crystal structure of 7-(2-{4-[(4-bromophenyl)methyl]piperazin-1-yl}ethoxy)-2H-chromen-2-one, C22H23BrN2O3
  61. Crystal structure of bis-[N-(3-ethyl-1-pyrazin-2-yl-ethylidene)-3-bromo-benzoic acid-hydrazonato-κ3O,N,N′)]-cadmium(II), C30H28N8O2Br2Cd
  62. Crystal structure of 6-(4-fluorophenyl)-4-methoxy-2H-pyran-2-one, C12H9FO3
  63. Crystal structure of 3-methyl-3-(2,4,5-trimethyl-3,6-dioxocyclohexa-1,4-dien-1-yl)butanoic acid, C14H18O4
  64. The crystal structure of 3-bromo-6-methoxy-2-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine, C13H19BBrNO3
  65. The crystal structure of 6-methyl-3,20-dioxo-19-norpregna-4,6-dien-17-yl acetate–2,4-dihydroxybenzoic acid (1/1), C30H36O8
  66. The crystal structure of (5-chloro-2-hydroxy-N-(4-methoxy-2-oxidobenzylidene)benzohydrazonato-κ3N,O,O′)-(pyridine-κ1N)copper(II), C20H16ClCuN3O4
  67. Crystal structure of (E)-2-cyano-N′-(1-(3-ethylpyrazin-2-yl)ethylidene)acetohydrazide, C11H3N5O
  68. Crystal structure of (2,7-dihexyl-9,9-dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphane), C51H56OP2
  69. Crystal structure of 5-((bis(pyridin-2-ylmethyl)amino)methyl)quinolin-8-ol, C22H20N4O
  70. 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
  71. 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
  72. Crystal structure of bis(3-chloro-N-(1-(pyrazin-2-yl)ethylidene)benzohydrazonato-k3N,N′,O)nickel(II), C26H20N8O2Cl2Ni
  73. 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
  74. Crystal structure of (E)-N′-((4-aminophenyl)sulfonyl)-N,N-dimethylformimidamide, C9H13N3O2S
  75. Crystal structure of η6-p-cymene-iodido-(N-isopropyl-1-(pyridin-2-yl)methanimine-κ2N,N′)ruthenium(II) hexafluorophosphate(V), C19H26IN2F6Ru
  76. Crystal structure of 6-iodo-3-phenyl-2-propylquinazolin-4(3H)-one, C17H15IN2O
  77. Low temperature redetermination of the crystal structure of catena-poly[[tri-4-fluorobenzyltin(IV)]μ2-pyridine-4-carboxylato-κ2N:O], {C27H22F3NO2Sn}n
  78. Crystal structure of bis(2-propyl-1H-benzo[d]imidazol-3-ium) tetrachloridozincate(II), C10H13Cl4N2Zn
  79. The crystal structure of (Z)-3-hydrazono-5-nitroindolin-2-one – dimethyl sulfoxide (1/1), C8H6N4O3
  80. Crystal structure of bis-[N-(1-pyrazin-2-yl-ethylidene)-cyanoacetic acid-hydrazonato-κ3O,N,N′)]-zinc(II), C18H16N10O2Zn
  81. Crystal structure and photochromism of 1-(2,5-dimethyl-3-thienyl)-2-[2-methyl-5-(benzaldoxime)-3-thienyl] perfluorocyclopentene, C23H17F6NOS2
https://doi.org/10.1515/ncrs-2019-0655
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Articles in the same Issue

  1. Frontmatter
  2. Synthesis and crystal structure of bis{5-fluorine-2-(((4-(1-(methoxy-imino)ethyl)phenyl) imino)methyl)phenolato-κ2N,O}copper(II), C32H28CuF2N4O4
  3. Redetermination of the crystal structure of N′-(3-ethoxy-2-hydroxybenzylidene)-4-fluorobenzohydrazide monohydrate, C16H17FN2O4
  4. The crystal structure of (E)-N′-(1-(3-chloro-4-fluorophenyl) ethylidene)-2-hydroxybenzohydrazide, C15H12ClFN2O2
  5. Crystal structure of (E)-N-[4-(1H)-imidazolyl phenyl]-(2-methylphenyl)methanimine, C17H15N3
  6. The crystal structure of 1-benzyl-4-(2-(phenylethynyl)phenyl)-1H-1,2,3-triazole, C23H17N3
  7. Crystal structure of catena-poly[{μ2-1,5-bis(diphenylphosphanyl)pentane-κ2P:P′}dichloridocadmium(II)], C29H30CdCl2P2
  8. Crystal structure of methyl (E)-N2-((3-methylquinolin-8-yl)sulfonyl)-Nω′-nitro-L-argininate - ethanol (1/1), C19H28N6O7S
  9. The crystal structure of trans-carbonyl-(diphenylcyclohexyl-phosphine-κP)iodidomethyl-(2-oxopyridin-1(2H)-olato-κ2O,O′)rhodium(III), C25H28INO3PRh
  10. Crystal structure of N-(amino(pyrazin-2-yl)methylene)-6-methylpyridin-1-ium-3-carbohydrazonate-κ3O,N,N′)-(dinitrato-κ1O)zinc(II), C12H12N8O7Zn
  11. The crystal structure of dichlorido-(tris(2-benzimidazolylmethyl)amine-κ4N,N′,N′′,N′′′)chromium(III) chloride — methanol (1/3), CrC27H33Cl3N7O3
  12. Crystal structure of catena-poly[aqua(μ4-piperazine-1,4-bis(2-hydroxypropanesulfonato-κ8O,O′:O′,N:N′,O′′:O′′,O′′′))silver(I)], C10H24Ag2N2O10S2
  13. 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
  14. Crystal structure of (E)-1-{4-[(4-fluoro-2-hydroxybenzylidene)amino]phenyl}ethanone O-methyl oxime, C16H15FN2O2
  15. Crystal structure of catena-[(bis(O,O′-diethyl dithiophosphato-S,S′)-μ2-1,2-bis(3-pyridylmethylene)hydrazine-N,N′)zinc(II)], {C20H30N4O4P2S4Zn}n
  16. Crystal structure of methyl 2-(4-(3-iodopyrazolo[1,5-a]pyrimidin-6-yl)phenyl)acetate, C15H12IN3O2
  17. Crystal structure of hexacarbonyl-(μ2-methanoato-k2O:O′)-(μ2–bis(di-p-tolylphosphino)cyclohexylamine-κ2P:P′)dirhenium(I), C42H45NO8P2Re2
  18. The cocrystal structure of 1′-hydroxy-1H,1′H-[5,5′-bitetrazol]-1-olate and 1,10-phenanthrolin-1-ium, C14H10N10O2
  19. The crystal structure of 1-benzyl-2-((4-(tert-butyl)phenyl)ethynyl)pyridin-1-ium bromide,C24H24BrN
  20. Crystal structure of (5,5′-bitetrazole-1,1′-diolate)-bis(1,10-phenanthroline)-copper(II), C26H16CuN12O2
  21. Crystal structure of bis(ammonium) diaqua-tetrakis(4-hydroxybenzoato)-manganese(II) tetrahydrate, [NH4]2[C28H24MnO14] ⋅ 4(H2O)
  22. The crystal structure of 3-chloro-1-hydrazino-2,4,6-trinitrobenzene, C6H4ClN5O6
  23. Crystal structure of catena-[(μ2-pyrazine-κ2N:N′)-bis(O,O′-di-ethyldithiophosphato-κ2S,S′)cadmium(II)], {C12H24CdN2O4P2S4}n
  24. 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
  25. 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
  26. Crystal structure of tetraqua-bis(4-(hydroxymethyl)benzoato-κO)cobalt(II), C16H22O10Co
  27. Crystal structure of catena-[(bis(O,O′-diethyl dithiophosphato-S,S′)-μ2-1,2-bis(4-pyridylmethylene)hydrazine-N,N′)cadmium(II)], {C20H30CdN4O4P2S4}n
  28. 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
  29. 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
  30. The crystal structure of catena-poly[(E)-2-(((5-((trimethylstannyl)thio)-1,3,4-thiadiazol-2-yl)imino)methyl)phenol], C12H15N3OS2Sn
  31. Crystal structure of dichlorido(N-o-tolyl-1,1-di-p-tolylphosphanamine–κ1P)-(methoxydi-p-tolylphosphane-κ1P)palladium(II), C36H39Cl2NOP2Pd
  32. The crystal structure of the triclinic polymorph of hexameric (trimethylsilyl)methyllithium, C24H66Li6Si6
  33. Crystal structure of bis(hydroxydi(pyridin-2-yl)methanolato-κ3N,N′O)cobalt(III) 7,7,8,8-tetracyanoquinodimethane, C34H22CoN8O4
  34. Synthesis and crystal structure of benzyl 5-oxo-5-phenyl-2-(quinolin-2-yl)pentanoate, C27H23NO3
  35. 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
  36. Crystal structure of dipentyl 2,5-dihydroxycyclohexa-1,4-diene-1,4-dicarboxylate, C18H28O6
  37. 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
  38. Crystal structure of 2,7-diiodo-1,3,6,8-tetramethyl-bis(difluoroboron)-1,2-bis((1H-pyrrol-2-yl)methylene)hydrazine, C14H14B2F4I2N4
  39. 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
  40. Crystal structure and anti-inflammatory activity of (3E,5E)-3-(2-fluorobenzylidene)-1-((4-fluorophenyl)sulfonyl)-5-(pyridin-3-ylmethylene)piperidin-4-one, C24H18F2N2O3S
  41. 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
  42. Crystal structure of 4-dimethylamino-pyridin-1-ium uracil-1-acetate, C13H16N4O4
  43. Crystal structure of dimethylammonium 5-fluorouracil-1-acetate, C8H12N3O4F
  44. Crystal structure of bis(N′-((5-(ethoxycarbonyl)-1H-pyrrol-2-yl)methylene)-N-ethylcarbamohydrazonothioato-κ2N,O)nickel(II), C22H30N8O4S2Ni
  45. Crystal structure of chlorido-(η5-pentamethylcyclopentadienyl)-((bis-pyrazol-1-yl)methane-κ2N,N′) rhodium(III) hexafluorophosphate. (C17H23ClN4RhF6P)
  46. The crystal structure of 5-(benzofuran-2-carbonyl)-N-cyclohexyl-5,6-dihydrophenanthridine-6-carboxamide, C29H26N2O3
  47. The crystal structure of 2-oxo-2H-chromen-4-yl acetate, C11H8O4
  48. The crystal structure of 2-nitroisophthalic acid, C8H5NO6
  49. Crystal structure of 3-fluoro-9-methoxy-4b,5,14,15-tetrahydro-6H-isoquinolino [2′,1′:1,6]pyrazino[2,3-b]quinoxaline, C19H17FN4O
  50. Crystal structure of (4-fluorobenzyl-κC)(bis(2-hydroxyethyl) carbamodithioato-κ2S,S′)(2,2′-imino-diethanolato-κ3N,O,O′)tin(IV), C16H25FN2O4S2Sn
  51. 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
  52. 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
  53. The crystal structure of 3-((1R,2S)-1-methylpyrrolidin-1-ium-2-yl)pyridin-1-ium tetrachloridomanganate(II), C10H16Cl4MnN2
  54. The crystal structure of 3-carboxy-5-methylpyridin-1-ium-2-carboxylate, C8H7NO4
  55. Crystal structure of bis(3-methoxy-N-(1-(pyridin-2-yl)ethylidene)benzohydrazonato κ3O,N,N′)zinc(II), C30H28N6O4Zn
  56. Crystal structure of dichlorido-(4,4′-dichloro-2,2′-bipyridine-κ2N,N′)platinum(II) — acetone (1/1), C13H12Cl4N2PtO
  57. 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
  58. 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
  59. The crystal structure of 2-phenyl-4,6-bis(prop-2-yn-1-yloxy)-1,3,5-triazine, C15H11N3O2
  60. Crystal structure of 7-(2-{4-[(4-bromophenyl)methyl]piperazin-1-yl}ethoxy)-2H-chromen-2-one, C22H23BrN2O3
  61. Crystal structure of bis-[N-(3-ethyl-1-pyrazin-2-yl-ethylidene)-3-bromo-benzoic acid-hydrazonato-κ3O,N,N′)]-cadmium(II), C30H28N8O2Br2Cd
  62. Crystal structure of 6-(4-fluorophenyl)-4-methoxy-2H-pyran-2-one, C12H9FO3
  63. Crystal structure of 3-methyl-3-(2,4,5-trimethyl-3,6-dioxocyclohexa-1,4-dien-1-yl)butanoic acid, C14H18O4
  64. The crystal structure of 3-bromo-6-methoxy-2-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine, C13H19BBrNO3
  65. The crystal structure of 6-methyl-3,20-dioxo-19-norpregna-4,6-dien-17-yl acetate–2,4-dihydroxybenzoic acid (1/1), C30H36O8
  66. The crystal structure of (5-chloro-2-hydroxy-N-(4-methoxy-2-oxidobenzylidene)benzohydrazonato-κ3N,O,O′)-(pyridine-κ1N)copper(II), C20H16ClCuN3O4
  67. Crystal structure of (E)-2-cyano-N′-(1-(3-ethylpyrazin-2-yl)ethylidene)acetohydrazide, C11H3N5O
  68. Crystal structure of (2,7-dihexyl-9,9-dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphane), C51H56OP2
  69. Crystal structure of 5-((bis(pyridin-2-ylmethyl)amino)methyl)quinolin-8-ol, C22H20N4O
  70. 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
  71. 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
  72. Crystal structure of bis(3-chloro-N-(1-(pyrazin-2-yl)ethylidene)benzohydrazonato-k3N,N′,O)nickel(II), C26H20N8O2Cl2Ni
  73. 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
  74. Crystal structure of (E)-N′-((4-aminophenyl)sulfonyl)-N,N-dimethylformimidamide, C9H13N3O2S
  75. Crystal structure of η6-p-cymene-iodido-(N-isopropyl-1-(pyridin-2-yl)methanimine-κ2N,N′)ruthenium(II) hexafluorophosphate(V), C19H26IN2F6Ru
  76. Crystal structure of 6-iodo-3-phenyl-2-propylquinazolin-4(3H)-one, C17H15IN2O
  77. Low temperature redetermination of the crystal structure of catena-poly[[tri-4-fluorobenzyltin(IV)]μ2-pyridine-4-carboxylato-κ2N:O], {C27H22F3NO2Sn}n
  78. Crystal structure of bis(2-propyl-1H-benzo[d]imidazol-3-ium) tetrachloridozincate(II), C10H13Cl4N2Zn
  79. The crystal structure of (Z)-3-hydrazono-5-nitroindolin-2-one – dimethyl sulfoxide (1/1), C8H6N4O3
  80. Crystal structure of bis-[N-(1-pyrazin-2-yl-ethylidene)-cyanoacetic acid-hydrazonato-κ3O,N,N′)]-zinc(II), C18H16N10O2Zn
  81. Crystal structure and photochromism of 1-(2,5-dimethyl-3-thienyl)-2-[2-methyl-5-(benzaldoxime)-3-thienyl] perfluorocyclopentene, C23H17F6NOS2
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