Abstract
C10H14N2O2, monoclinic, P21/c (no. 14), a = 14.9185(12) Å, b = 7.7243(6) Å, c = 9.2229(5) Å, β = 91.032(6)°, V = 1062.63(13) Å3, Z = 4, T = 293(2) K.
The asymmetric unit of the title crystal structure is shown in the figure. Tables 1 and 2 contain details of the measurement method and a list of the atoms including atomic coordinates and displacement parameters.
Data collection and handling.
Crystal: | Colorless block |
Size: | 0.29 × 0.13 × 0.09 mm |
Wavelength: | Mo Kα radiation (0.71073 Å) |
μ: | 0.09 mm−1 |
Diffractometer, scan mode: | SuperNova, φ and ω |
θmax, completeness: | 29.6°, >99% |
N(hkl)measured, N(hkl)unique, Rint: | 5082, 2534, 0.021 |
Criterion for Iobs, N(hkl)gt: | Iobs > 2 σ(Iobs), 1512 |
N(param)refined: | 135 |
Programs: | CrysAlisPRO [17], SHELX [18], WinGX [19], CHEMDRAW Ultra [20]. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).
Atom | x | y | z | Uiso*/Ueq |
---|---|---|---|---|
C1 | 0.24439(13) | 0.3566(3) | 0.26176(18) | 0.0553(5) |
C2 | 0.24067(15) | 0.5161(3) | 0.1958(2) | 0.0665(6) |
H2 | 0.2782 | 0.5391 | 0.1188 | 0.080* |
C3 | 0.18216(16) | 0.6430(3) | 0.2417(2) | 0.0710(6) |
H3 | 0.1799 | 0.7496 | 0.1948 | 0.085* |
C4 | 0.12752(14) | 0.6108(3) | 0.3569(2) | 0.0670(6) |
C5 | 0.13152(14) | 0.4524(3) | 0.4251(2) | 0.0700(6) |
H5 | 0.0953 | 0.4312 | 0.5042 | 0.084* |
C6 | 0.18829(14) | 0.3253(3) | 0.3780(2) | 0.0625(6) |
H6 | 0.1893 | 0.2180 | 0.4237 | 0.075* |
C7 | 0.35326(14) | 0.1205(3) | 0.29039(19) | 0.0556(5) |
C8 | 0.37929(19) | −0.0498(3) | 0.0685(2) | 0.0848(8) |
H8A | 0.3156 | −0.0574 | 0.0529 | 0.127* |
H8B | 0.4063 | −0.1596 | 0.0477 | 0.127* |
H8C | 0.4034 | 0.0370 | 0.0058 | 0.127* |
C9 | 0.4621(2) | −0.1113(4) | 0.2971(3) | 0.1023(10) |
H9A | 0.4701 | −0.0680 | 0.3940 | 0.153* |
H9B | 0.5185 | −0.1095 | 0.2486 | 0.153* |
H9C | 0.4400 | −0.2279 | 0.3005 | 0.153* |
C10 | 0.0505(3) | 0.8791(4) | 0.3308(4) | 0.1230(12) |
H10A | 0.1025 | 0.9520 | 0.3381 | 0.184* |
H10B | −0.0002 | 0.9389 | 0.3695 | 0.184* |
H10C | 0.0387 | 0.8511 | 0.2309 | 0.184* |
N1 | 0.30120(12) | 0.2264(2) | 0.20641(18) | 0.0627(5) |
N2 | 0.39827(13) | −0.0034(2) | 0.21882(17) | 0.0670(5) |
O1 | 0.36005(11) | 0.1371(2) | 0.42292(13) | 0.0739(5) |
O2 | 0.06579(12) | 0.7263(3) | 0.40972(19) | 0.0957(6) |
H1 | 0.3151(16) | 0.237(3) | 0.117(3) | 0.077(7)* |
C1 | 0.24439(13) | 0.3566(3) | 0.26176(18) | 0.0553(5) |
C2 | 0.24067(15) | 0.5161(3) | 0.1958(2) | 0.0665(6) |
H2 | 0.2782 | 0.5391 | 0.1188 | 0.080* |
C3 | 0.18216(16) | 0.6430(3) | 0.2417(2) | 0.0710(6) |
H3 | 0.1799 | 0.7496 | 0.1948 | 0.085* |
C4 | 0.12752(14) | 0.6108(3) | 0.3569(2) | 0.0670(6) |
C5 | 0.13152(14) | 0.4524(3) | 0.4251(2) | 0.0700(6) |
H5 | 0.0953 | 0.4312 | 0.5042 | 0.084* |
Source of material
To a stirred solution of triphosgene (1.0 mole equivalent) in dichloromethane (DCM), a solution of 4-methoxyaniline (2.5 mole equivalents) and triethylamine (5.5 mole equivalents) in DCM was slowly added over 30 min at 0 °C. The mixture was stirred at 0 °C for 2 h, after which a solution of dimethylamine (3.0 mole equivalents) in tetrahydrofuran was added. The reaction mixture was stirred at 0 °C for 1 h. The mixture was poured onto water and the DCM layer was separated, washed with water, and dried over magnesium sulfate and the solvent was then removed under reduced pressure. Crystallization of the obtained raw solid using a mixture of ethyl acetate and diethyl ether (1:3 by volume) gave the title compound, 1,1-dimethyl-3-(4-methoxyphenyl)urea (83%) as colorless crystals, Mp. 132–133 °C (lit. 131–132 °C [1]).
Experimental details
Non-hydrogen atoms were refined with anisotropic displacement parameters. The N-H proton was refined freely but all other hydrogen atoms were placed in calculated positions and refined using a riding model. C-H bonds of the methyl groups were fixed at 0.96 Å, with displacement parameters 1.5 times Ueq(C) for the hydrogen atoms, and were allowed to spin about the C-C bond. Aromatic C-H distances were set to 0.93 Å and their U(iso) values of the corresponding hydrogen atoms were set to 1.2 times the Ueq values of the atoms to which they are bonded.
Comment
Many urea derivatives are very important intermediates in organic syntheses and show a variety of biological activities [2], [3], [4], [5]. Various efficient procedures for the synthesis of aromatic ureas are known [6], [7], [8], [9], [10], [11]. Aromatic ureas can be easily modified via treatment with lithium reagents followed by reactions with electrophiles, a methodology we have used in the last few years [12], [13], [14], [15], [16].
The asymmetric unit contains one molecule of C10H14N2O2. In the molecule, the methoxybenzene group is almost planar with a C3—C4—O2—C10 torsion angle of 7.5(4)°. The rest of the molecule is not planar with twist angles 46.90(9)° between the phenyl and the NC(O)N groups and 10.68(34)° between NC(O)N and N(Me2) groups. In the crystal, N-H⋯O hydrogen bonding is observed with geometry: N1—H1⋯O1 = 158(2)°, N1⋯O1 = 2.966(2) Å. The hydrogen bonds construct chains of molecules along [001]. All bond lengths and angles are in the expected ranges.
Acknowledgement
The authors extend their appreciation to the Deanship of Scientific Research at King Saud University for its funding for this research through the research group project RGP-239 and to Cardiff University for the continued support.
References
1 Hutchby, M.: Novel Synthetic Chemistry of Ureas and Amides. Springer Thesis, Springer, 2013.10.1007/978-3-642-32051-4Suche in Google Scholar
2 Chen, J.-N.; Wang, X.-F.; Li, T.; Wu, D.-W.; Fu, X.-B.; Zhang, G.-J.; Shen, X.-C.; Wang, H.-S.: Design, synthesis, and biological evaluation of novel quinazolinyl-diaryl urea derivatives as potential anticancer agents. Eur. J. Med. Chem. 107 (2016) 12–25.10.1016/j.ejmech.2015.10.045Suche in Google Scholar PubMed
3 Kocyigit-Kaymakcioglu, B.; Celen, A. O.; Tabanca, N.; Ali, A.; Khan, S. I.; Khan, I. A.; Wedge, D. E.: Synthesis and biological activity of substituted urea and thiourea derivatives containing 1,2,4-triazole moieties. Molecules 18 (2013) 3562–3576.10.3390/molecules18033562Suche in Google Scholar PubMed PubMed Central
4 Gennäs, G. B.; Mologni, L.; Ahmed, S.; Rajaratnam, M.; Marin, O.; Lindholm, N.; Viltadi, M.; Gambacorti-Passerini, C.; Scapozza, L.; Yli-Kauhaluoma, J.: Design, synthesis, and biological activity of urea derivatives as anaplastic lymphoma kinase inhibitors. ChemMedChem 6 (2011) 1680–1692.10.1002/cmdc.201100168Suche in Google Scholar PubMed
5 Wilson, A. A.; Garcia, A.; Houle, S.; Sadovski, O.; Vasdev, N.: Synthesis and application of isocyanates radiolabeled with carbon-11. Chem. Eur. J. 17 (2011) 259–264.10.1002/chem.201002345Suche in Google Scholar PubMed
6 Thalluri, K.; Manne, S. R.; Dev, D.; Mandal, B.: Ethyl 2-cyano-2-(4-nitrophenylsulfonyloxyimino)acetate-mediated Lossen rearrangement: single-pot racemization-free synthesis of hydroxamic acids and ureas from carboxylic acids. J. Org. Chem. 79 (2014) 3765–3775.10.1021/jo4026429Suche in Google Scholar PubMed
7 Carnaroglio, D.; Martina, K.; Palmisano, G.; Penoni, A.; Domini, C.; Cravotto, G.: One-pot sequential synthesis of isocyanates and urea derivatives via a microwave-assisted Staudinger–aza-Wittig reaction. Beilstein J. Org. Chem. 9 (2013) 2378–2386.10.3762/bjoc.9.274Suche in Google Scholar PubMed PubMed Central
8 Vinogradova, E. V.; Fors, B. P.; Buchwald, S. L.: Palladium-catalyzed cross-coupling of aryl chlorides and triflates with sodium cyanate: a practical synthesis of unsymmetrical ureas. J. Am. Chem. Soc. 134 (2012) 11132–11135.10.1021/ja305212vSuche in Google Scholar PubMed PubMed Central
9 Wu, C.; Cheng, H.; Liu, R.; Wang, Q.; Hao, Y.; Yu, Y.; Zhao, F.: Synthesis of urea derivatives from amines and CO2 in the absence of catalyst and Solvent. Green Chem. 12 (2010) 1811–1816.10.1039/c0gc00059kSuche in Google Scholar
10 Mizuno, T.; Nakai, T.; Mihara, M.: Synthesis of unsymmetrical ureas by sulfur-assisted carbonylation with carbon monoxide and oxidation with molecular oxygen under mild conditions. Synthesis 41 (2009) 2492–2496.10.1002/chin.200952100Suche in Google Scholar
11 Artuso, E.; Degani, I.; Fochi, R.; Magistris, C.: Preparation of mono-, di-, and trisubstituted ureas by carbonylation of aliphatic amines with S,S-dimethyl dithiocarbonate. Synthesis 39 (2007) 3497–3506.10.1002/chin.200813055Suche in Google Scholar
12 Smith, K.; El-Hiti, G. A.; Alshammari, M. B.: Directed lithiation of N′-(2-(4-methoxyphenyl)ethyl)-N,N-dimethylurea and tert-butyl (2-(4-methoxyphenyl)ethyl)carbamate. Synthesis 46 (2014) 394–402.10.1055/s-0033-1338570Suche in Google Scholar
13 Smith, K.; El-Hiti, G. A.; Alshammari, M. B.: Control of site of lithiation of 3-(aminomethyl)pyridine derivatives. Synthesis 45 (2013) 3426–3434.10.1055/s-0033-1338547Suche in Google Scholar
14 Smith, K.; El-Hiti, G. A.; Alshammari, M. B.: Lithiation and substitution of N′-(ω-phenylalkyl)-N,N-dimethylureas. Synthesis 44 (2012) 20139–2022.10.1055/s-0031-1291008Suche in Google Scholar
15 Smith, K.; El-Hiti, G. A.; Alshammari, M. B.: Variation in the site of lithiation of 2-(2-methylphenyl)ethanamine derivatives. J. Org. Chem. 77 (2012) 11210–11215.10.1021/jo3023445Suche in Google Scholar PubMed
16 Smith, K.; El-Hiti, G. A.; Hegazy, A. S.: Lateral lithiation of N′-(2-methylbenzyl)-N,N-dimethylurea and N-(2-methylbenzyl)pivalamide: Synthesis of tetrahydroisoquinolines. Synthesis 42 (2010) 1371–1380.10.1055/s-0029-1219277Suche in Google Scholar
17 Agilent. CrysAlisPRO. Agilent Technologies, Yarnton, England, 2014.Suche in Google Scholar
18 Sheldrick, G. M.: A short history of SHELX. Acta Crystallogr. A64 (2008) 112–122.10.1107/S0108767307043930Suche in Google Scholar PubMed
19 Farrugia, L. J.: WinGX and ORTEP for Windows: an update. J. Appl. Crystallogr. 45 (2012) 849–854.10.1107/S0021889812029111Suche in Google Scholar
20 Cambridge Soft. CHEMDRAW Ultra. Cambridge Soft Corporation, Cambridge, Massachusetts, USA, 2001.Suche in Google Scholar
©2017 Gamal A. El-Hiti et al., published by De Gruyter.
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Artikel in diesem Heft
- Cover and Frontmatter
- The crystal structure of triphenylphosphineoxide – 2,5-dichloro-3,6-dihydroxycyclohexa-2,5-diene-1,4-dione (2/1), C42H32Cl2O6P2
- Crystal structure of poly-[diaqua-[bis(μ2-hydroxy)-bis(μ4-3,4,5,6-tetrachlorophthalato-κ3O,O′:O′; κ2O′′:O′′′)dilanthanum(III)], C8H3Cl4LaO6
- Crystal structure of 1,1′-(3,4-diphenylthieno[2,3-b]thiophene-2,5-diyl)bis[1-phenyl-methanone], C32H20O2S2
- Crystal structure of 4a-hydroxy-9-(3,5-dibromo-phenyl)-3,4,4a,5,6,7,9,9a-octahydro-2H-xanthene-1,8-dione, C19H18Br2O4
- Crystal structure of 5-hydroxy-4,6,9,10-tetramethyl-1-oxo-6-vinyldecahydro-3a,9-propanocyclopenta[8]annulen-8-yl 2-((2-methyl-1-(3-methylbenzamido)propan-2-yl)thio)acetate, C34H49NO5S
- Crystal structure of pyridinium bis(naphthalane-2,3-diolato-κ2O,O′)borate monohydrate, C25H20BNO5
- Crystal structure of 1,1′-((1E,1′E)-(((ethane-1,2-diylbis(oxy))bis(2,1-phenylene))bis(azanylylidene))bis(methanylylidene))bis(naphthalen-2-olato)nickel(II), C72H52N4O8Ni2
- The crystal structure of 3-(2-acetyl-4-butyramido-phenoxy)-2-hydroxy-N-isopropylpropan-1-aminium tetraphenylborate, C42H49BN2O4
- Crystal structure of 4-bromobenzyl (Z)-N′-(adamantan-1-yl)-4-phenylpiperazine-1-carbothioimidate, C28H34BrN3S
- Crystal structure of poly-[(μ6-benzene-1,2,4,5-tetracarboxylato)-(μ2-1,2-bis(imidazol-1-ylmethyl)benzene)dicobalt(II)], Co2C24H16N4O8
- Crystal structure of catena-(bis(μ2-1, 2-bis(imidazole-1-ylmethyl)benzene-κN:N′)-dichlororido-nickel(II)), C28H28Cl2N8Ni
- Crystal structure of (Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-hydroxy-3-(4-methoxyphenyl)prop-2-en-1-one, C15H16N2O3
- Crystal structure of (Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-hydroxy-3-phenylprop-2-en-1-one, C14H14N2O2
- Crystal structure of (E)-2-(4-hydroxy-3-methoxybenzylidene)-6-methoxy-3,4-dihydronaphthalen-1(2H)-one, C19H18O4
- Crystal structure of (Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-(4-ethoxyphenyl)-3-hydroxyprop-2-en-1-one, C16H18N2O3
- Crystal structure of (Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-hydroxy-3-(p-toly)prop-2-en-1-one, C15H16N2O2
- Crystal structure of 1-acetyl-3-(3-chlorophenyl)-5-(4-isopropylphenyl)-4,5-dihydro-(1H)-pyrazole, C20H21ClN2O
- The crystal structure of 1-methyl-2,4-dinitro-5-iodoimidazole, C4H3IN4O4
- The crystal structure of 4-chloro-3,5-dinitroaniline, C6H4ClN3O4
- Crystal structure of N,N-dimethyl-N′-(2-methyl-4-oxo-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-3(4H)-yl)formimidamide, C14H18N4OS
- Crystal structure of tetrakis(μ2-acetato-κ2O:O′)-bis[μ3-4-chloro-2,6-bis((methylimino)methyl)phenolato-κ2N,O:O,N′]-(μ4-oxido)tetracopper(II), C28H32Cl2Cu4N4O11
- Crystal structure of catena-poly[diaqua-bis(μ2-ethane-1,2-diyl-bis(pyridine-3-carboxylate-κ2N:N′))copper(II)] dinitrate, C28H28CuN6O16
- Synthesis and crystal structure of catena-poly[(μ2-nicotinato-κ2O,O′: κ1N)-(nitrato-κ1O)-(bis(2-benzimidazol-ylmethyl)amine-κ3N,N′,N′′)lead(II)], C22H18N7O5Pb
- The twinned crystal structure of (4SR)-7-benzyl-2,4,8,8-tetramethyl-7,8-dihydroimidazo[5,1-c][1,2,4]triazine-3,6(2H,4H)-dione, C16H20N4O2
- Crystal structure of (Z)-3-hydroxy-3-(4-methoxyphenyl)-1-(pyridin-2-yl)prop-2-en-1-one, C15H13NO3
- Crystal structure of 2-amino-4-(2,3-dichlorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C16H12Cl2N2O2
- Crystal structure of catena-poly[(μ2-butane-1,4-diyl-bis(pyridine-3-carboxylato-κN))silver(I)] tetrafluoroborate, C16H16AgN2O4BF4
- Crystal structure of poly[diaqua-(1,10-phenanthroline-κ2N,N′)-(μ2-2,5-dihydroxytere-phthalato)-bis(μ4-2,5-dihydroxyterephthalato)dicerium(III)], C24H16CeN2O10
- Crystal structure of 5,7,4′-trihydroxy-3,8,3′-trymethoxyflavone, C18H16O8
- Crystal structure of N-(3,4-dichlorobenzylidene)-4-methylaniline, C14H11Cl2N
- Crystal structure of 4-(3-Methoxy-phenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylic acid ethyl ester, C22H27NO4
- Crystal structure of 2-amino-4-(3-fluorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C16H13FN2O2
- Crystal structure of 1,1,(3,4-dihydroxythieno[2,3-b] thiophene-2,5-diyl)bis(2-bromoethanone), C10H6Br2O4S2
- The crystal structure of N,N′-(4,4′-oxydibenzyl)-bisisonicotinamide 3.5 hydrate, C24H24N4O6
- Crystal structure of catena-poly[hexakis(μ2-chlorido)-hexakis(4-(1H-pyrazol-5-yl)pyridine-κN)tricadmium(II)], Cd3C48H42Cl6N18
- Crystal structure of 2-(4-(dimethylamino)phenyl)-1,3-dimethyl-1H-perimidin-3-ium iodide, C21H22I1N3
- Crystal structure of 4-(1,3-dimethyl-2,3-dihydro-1H-perimidin-2-yl)benzonitrile, C20H17N3
- Crystal structure of tetrakis(μ2-acetato-κ2O:O′)-bis(2,2′-sulfonyldipyrazine-κ1N)dicopper(II), C24H24Cu2N8O12S2
- Crystal structure of 1-(4-chlorophenyl)-6,8-diphenyl-1H-pyrazolo[4,3-c]quinoline, C28H18ClN3
- Crystal structure of methyl 3-((1-(2-(methoxycarbonyl)benzyl)-1H-1,2,3-triazol-4-yl)methoxy)-2-naphthoate, C24H21N3O5
- Crystal structure of (tris(2-pyridylmethyl)amine-κ4N,N′,N′′,N′′′′)-chloranilato-κO,O′-zinc(II) – methanol (1/1), C25H22Cl2N4O5Zn
- Crystal structure of 1,1-dimethyl-3-(4-methoxyphenyl)urea, C10H14N2O2
- Crystal structure of 4a-Hydroxy-9-(2-nitro-phenyl)-3,4,4a,5,6,7,9,9a-octahydro-2H-xanthene-1,8-dione, C19H19NO6
- Crystal structure of chlorido-(η6–1-isopropyl-4-methyl benzene)-(1-(pyridin-2-yl)-N-(p-tolyl)methanimine-κ2N,N′)ruthenium(II) hexafluorophosphate(V), C23H26ClF6N2PRu
- Crystal structure of phenyl(2-phenyl-2,3-dihydro-1H-perimidin-2-yl)methanone, C24H18N2O
- Crystal structure of (E)-3-methyl-4-((3-(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazol-4-yl)methylene)-1-phenyl-1H-pyrazol-5(4H)-one, C29H23N7O
- Crystal structure of 2-(4-(2-butyl-1,3-dioxo-2,3-dihydro-1H-benzo[de]isoquinolin-6-yl)piperazin-1-yl)-2-oxoethyldiethylcarbamodithioate, C27H34N4O3S2
- Crystal structure of poly-[diaqua-bis(μ-4,4′-bipyridine-κ2N:N′)cobalt(II)] bis(4-chlorobenzenesulfonate) – 4,4′-bipyridine – water (1/1/2), C42H40Cl2CoN6O10S2
- Crystal structure of (η6-benzene)-(N-(2,6-dimethylphenyl)-1-(pyridin-2-yl)methanimine-κ2N,N′)ruthenium(II) perchlorate monohydrate, C20H20Cl2N2O5Ru
- Crystal structure of 4,10,16,22-tetrahydroxy-6,12,18,24-tetramethoxy-2,8,14,20-tetraethylphenylresorcin[4]arene – ethyl acetate (1/1), C68H72O10
- Crystal structure of chlorido-(N-(2,5-dichlorophenyl)-1-(pyridin-2-yl)methanimine-κ2N,N′)(η6-1-isopropyl-4-methyl benzene) ruthenium (II) tetrafluoroborate, C22H22Cl3N2BF4Ru
- Crystal structure of 3-(5-methyl-1-p-tolyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazole-4-carbaldehyde, a rare Z′ = 3 structure, C20H17N5O
- Crystal structure of 5-(5-(4-chlorophenyl)-1-phenyl-1H-pyrazol-3-yl)-N-phenyl-1,3,4-thiadiazol-2-amine, C23H16ClN5S
- Crystal structure of 7-hydroxy-3-(4-hydroxyphenyl)-4H-1-benzopyran-4-one-N,N-dimethylformamide (1/1), C18H17NO5
- Crystal structure of halogen-bonded 2-chloro-1,10-phenanthroline—1,4-diiodotetrafluorobenzene (2/1), C30H14Cl2F4I2N4
- Crystal structure of 1-(4,4-dimethyl-2,6-dithioxo-1,3,5-triazinan-1-yl)-3-(diethylaminocarbonyl)thiourea, C11H20N6OS3
- Crystal structure of methyl 1-(4-fluorobenzyl)-3-phenyl-1H-pyrazole-5-carboxylate, C18H15FN2O2
- Crystal structure of 1,1-dimethyl-3-(4-methylphenyl)urea, C10H14N2O
- Crystal structure of yttrium gallium antimonide, Y5Ga1.24Sb2.77
- Crystal structure of 2-(bis(4-methoxyphenyl)amino)-2-oxoacetic acid, C16H15NO5
Artikel in diesem Heft
- Cover and Frontmatter
- The crystal structure of triphenylphosphineoxide – 2,5-dichloro-3,6-dihydroxycyclohexa-2,5-diene-1,4-dione (2/1), C42H32Cl2O6P2
- Crystal structure of poly-[diaqua-[bis(μ2-hydroxy)-bis(μ4-3,4,5,6-tetrachlorophthalato-κ3O,O′:O′; κ2O′′:O′′′)dilanthanum(III)], C8H3Cl4LaO6
- Crystal structure of 1,1′-(3,4-diphenylthieno[2,3-b]thiophene-2,5-diyl)bis[1-phenyl-methanone], C32H20O2S2
- Crystal structure of 4a-hydroxy-9-(3,5-dibromo-phenyl)-3,4,4a,5,6,7,9,9a-octahydro-2H-xanthene-1,8-dione, C19H18Br2O4
- Crystal structure of 5-hydroxy-4,6,9,10-tetramethyl-1-oxo-6-vinyldecahydro-3a,9-propanocyclopenta[8]annulen-8-yl 2-((2-methyl-1-(3-methylbenzamido)propan-2-yl)thio)acetate, C34H49NO5S
- Crystal structure of pyridinium bis(naphthalane-2,3-diolato-κ2O,O′)borate monohydrate, C25H20BNO5
- Crystal structure of 1,1′-((1E,1′E)-(((ethane-1,2-diylbis(oxy))bis(2,1-phenylene))bis(azanylylidene))bis(methanylylidene))bis(naphthalen-2-olato)nickel(II), C72H52N4O8Ni2
- The crystal structure of 3-(2-acetyl-4-butyramido-phenoxy)-2-hydroxy-N-isopropylpropan-1-aminium tetraphenylborate, C42H49BN2O4
- Crystal structure of 4-bromobenzyl (Z)-N′-(adamantan-1-yl)-4-phenylpiperazine-1-carbothioimidate, C28H34BrN3S
- Crystal structure of poly-[(μ6-benzene-1,2,4,5-tetracarboxylato)-(μ2-1,2-bis(imidazol-1-ylmethyl)benzene)dicobalt(II)], Co2C24H16N4O8
- Crystal structure of catena-(bis(μ2-1, 2-bis(imidazole-1-ylmethyl)benzene-κN:N′)-dichlororido-nickel(II)), C28H28Cl2N8Ni
- Crystal structure of (Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-hydroxy-3-(4-methoxyphenyl)prop-2-en-1-one, C15H16N2O3
- Crystal structure of (Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-hydroxy-3-phenylprop-2-en-1-one, C14H14N2O2
- Crystal structure of (E)-2-(4-hydroxy-3-methoxybenzylidene)-6-methoxy-3,4-dihydronaphthalen-1(2H)-one, C19H18O4
- Crystal structure of (Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-(4-ethoxyphenyl)-3-hydroxyprop-2-en-1-one, C16H18N2O3
- Crystal structure of (Z)-1-(1,5-dimethyl-1H-pyrazol-3-yl)-3-hydroxy-3-(p-toly)prop-2-en-1-one, C15H16N2O2
- Crystal structure of 1-acetyl-3-(3-chlorophenyl)-5-(4-isopropylphenyl)-4,5-dihydro-(1H)-pyrazole, C20H21ClN2O
- The crystal structure of 1-methyl-2,4-dinitro-5-iodoimidazole, C4H3IN4O4
- The crystal structure of 4-chloro-3,5-dinitroaniline, C6H4ClN3O4
- Crystal structure of N,N-dimethyl-N′-(2-methyl-4-oxo-5,6,7,8-tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidin-3(4H)-yl)formimidamide, C14H18N4OS
- Crystal structure of tetrakis(μ2-acetato-κ2O:O′)-bis[μ3-4-chloro-2,6-bis((methylimino)methyl)phenolato-κ2N,O:O,N′]-(μ4-oxido)tetracopper(II), C28H32Cl2Cu4N4O11
- Crystal structure of catena-poly[diaqua-bis(μ2-ethane-1,2-diyl-bis(pyridine-3-carboxylate-κ2N:N′))copper(II)] dinitrate, C28H28CuN6O16
- Synthesis and crystal structure of catena-poly[(μ2-nicotinato-κ2O,O′: κ1N)-(nitrato-κ1O)-(bis(2-benzimidazol-ylmethyl)amine-κ3N,N′,N′′)lead(II)], C22H18N7O5Pb
- The twinned crystal structure of (4SR)-7-benzyl-2,4,8,8-tetramethyl-7,8-dihydroimidazo[5,1-c][1,2,4]triazine-3,6(2H,4H)-dione, C16H20N4O2
- Crystal structure of (Z)-3-hydroxy-3-(4-methoxyphenyl)-1-(pyridin-2-yl)prop-2-en-1-one, C15H13NO3
- Crystal structure of 2-amino-4-(2,3-dichlorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C16H12Cl2N2O2
- Crystal structure of catena-poly[(μ2-butane-1,4-diyl-bis(pyridine-3-carboxylato-κN))silver(I)] tetrafluoroborate, C16H16AgN2O4BF4
- Crystal structure of poly[diaqua-(1,10-phenanthroline-κ2N,N′)-(μ2-2,5-dihydroxytere-phthalato)-bis(μ4-2,5-dihydroxyterephthalato)dicerium(III)], C24H16CeN2O10
- Crystal structure of 5,7,4′-trihydroxy-3,8,3′-trymethoxyflavone, C18H16O8
- Crystal structure of N-(3,4-dichlorobenzylidene)-4-methylaniline, C14H11Cl2N
- Crystal structure of 4-(3-Methoxy-phenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylic acid ethyl ester, C22H27NO4
- Crystal structure of 2-amino-4-(3-fluorophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C16H13FN2O2
- Crystal structure of 1,1,(3,4-dihydroxythieno[2,3-b] thiophene-2,5-diyl)bis(2-bromoethanone), C10H6Br2O4S2
- The crystal structure of N,N′-(4,4′-oxydibenzyl)-bisisonicotinamide 3.5 hydrate, C24H24N4O6
- Crystal structure of catena-poly[hexakis(μ2-chlorido)-hexakis(4-(1H-pyrazol-5-yl)pyridine-κN)tricadmium(II)], Cd3C48H42Cl6N18
- Crystal structure of 2-(4-(dimethylamino)phenyl)-1,3-dimethyl-1H-perimidin-3-ium iodide, C21H22I1N3
- Crystal structure of 4-(1,3-dimethyl-2,3-dihydro-1H-perimidin-2-yl)benzonitrile, C20H17N3
- Crystal structure of tetrakis(μ2-acetato-κ2O:O′)-bis(2,2′-sulfonyldipyrazine-κ1N)dicopper(II), C24H24Cu2N8O12S2
- Crystal structure of 1-(4-chlorophenyl)-6,8-diphenyl-1H-pyrazolo[4,3-c]quinoline, C28H18ClN3
- Crystal structure of methyl 3-((1-(2-(methoxycarbonyl)benzyl)-1H-1,2,3-triazol-4-yl)methoxy)-2-naphthoate, C24H21N3O5
- Crystal structure of (tris(2-pyridylmethyl)amine-κ4N,N′,N′′,N′′′′)-chloranilato-κO,O′-zinc(II) – methanol (1/1), C25H22Cl2N4O5Zn
- Crystal structure of 1,1-dimethyl-3-(4-methoxyphenyl)urea, C10H14N2O2
- Crystal structure of 4a-Hydroxy-9-(2-nitro-phenyl)-3,4,4a,5,6,7,9,9a-octahydro-2H-xanthene-1,8-dione, C19H19NO6
- Crystal structure of chlorido-(η6–1-isopropyl-4-methyl benzene)-(1-(pyridin-2-yl)-N-(p-tolyl)methanimine-κ2N,N′)ruthenium(II) hexafluorophosphate(V), C23H26ClF6N2PRu
- Crystal structure of phenyl(2-phenyl-2,3-dihydro-1H-perimidin-2-yl)methanone, C24H18N2O
- Crystal structure of (E)-3-methyl-4-((3-(5-methyl-1-phenyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazol-4-yl)methylene)-1-phenyl-1H-pyrazol-5(4H)-one, C29H23N7O
- Crystal structure of 2-(4-(2-butyl-1,3-dioxo-2,3-dihydro-1H-benzo[de]isoquinolin-6-yl)piperazin-1-yl)-2-oxoethyldiethylcarbamodithioate, C27H34N4O3S2
- Crystal structure of poly-[diaqua-bis(μ-4,4′-bipyridine-κ2N:N′)cobalt(II)] bis(4-chlorobenzenesulfonate) – 4,4′-bipyridine – water (1/1/2), C42H40Cl2CoN6O10S2
- Crystal structure of (η6-benzene)-(N-(2,6-dimethylphenyl)-1-(pyridin-2-yl)methanimine-κ2N,N′)ruthenium(II) perchlorate monohydrate, C20H20Cl2N2O5Ru
- Crystal structure of 4,10,16,22-tetrahydroxy-6,12,18,24-tetramethoxy-2,8,14,20-tetraethylphenylresorcin[4]arene – ethyl acetate (1/1), C68H72O10
- Crystal structure of chlorido-(N-(2,5-dichlorophenyl)-1-(pyridin-2-yl)methanimine-κ2N,N′)(η6-1-isopropyl-4-methyl benzene) ruthenium (II) tetrafluoroborate, C22H22Cl3N2BF4Ru
- Crystal structure of 3-(5-methyl-1-p-tolyl-1H-1,2,3-triazol-4-yl)-1-phenyl-1H-pyrazole-4-carbaldehyde, a rare Z′ = 3 structure, C20H17N5O
- Crystal structure of 5-(5-(4-chlorophenyl)-1-phenyl-1H-pyrazol-3-yl)-N-phenyl-1,3,4-thiadiazol-2-amine, C23H16ClN5S
- Crystal structure of 7-hydroxy-3-(4-hydroxyphenyl)-4H-1-benzopyran-4-one-N,N-dimethylformamide (1/1), C18H17NO5
- Crystal structure of halogen-bonded 2-chloro-1,10-phenanthroline—1,4-diiodotetrafluorobenzene (2/1), C30H14Cl2F4I2N4
- Crystal structure of 1-(4,4-dimethyl-2,6-dithioxo-1,3,5-triazinan-1-yl)-3-(diethylaminocarbonyl)thiourea, C11H20N6OS3
- Crystal structure of methyl 1-(4-fluorobenzyl)-3-phenyl-1H-pyrazole-5-carboxylate, C18H15FN2O2
- Crystal structure of 1,1-dimethyl-3-(4-methylphenyl)urea, C10H14N2O
- Crystal structure of yttrium gallium antimonide, Y5Ga1.24Sb2.77
- Crystal structure of 2-(bis(4-methoxyphenyl)amino)-2-oxoacetic acid, C16H15NO5