Results 11 to 20 of about 288,064 (168)

Very Strong C−H···O, N−H···O, and O−H···O Hydrogen Bonds Involving a Cyclic Phosphate [PDF]

, 2016
Very short C−H···O, N−H···O, and O−H···O hydrogen bonds have been generated utilizing the cyclic phosphate [CH2(6-t-Bu-4-Me-C6H2O)2]P(O)OH (1). X-ray structures of (i) 1 (unsolvated, two polymorphs), 1·EtOH, and 1·MeOH, (ii) [imidazolium]+[CH2(6-t-Bu-4 ...
Sudha Kumaraswamy (2939061), Praveen Kommana (2722120), K. C. Kumara Swamy (1401337)   +2 more
core   +3 more sources

3,3'-Dibutanoyl-1,1'-(o-phenyl­ene)dithio­urea [PDF]

, 2010
The mol­ecular conformation of the title compound, C16H22N4O2S2, is stabilized by two intramolecular N—H ... O hydrogen bonds. The crystal packing shows N—H ... O and N—H ...
Bolte, Michael, Naeem Abbas, Hummera Rafique, Rafique, Hummera, Michael Bolte, Abbas, Naeem, Saeed, Aamer, Aamer Saeed   +7 more
core   +1 more source

1-{2-Benzyloxy-2-[4-(morpholin-4-yl)phenyl]ethyl}-1H-benzimidazole [PDF]

, 2012
In the title compound, C26H27N3O2, the morpholine ring adopts a chair conformation. The benzene and phenyl rings are inclined to the benzimidazole mean plane by 7.28 (6) and 61.45 (4)°, respectively. In the crystal, pairs of weak C—
Seval Çapanlar, Adler, P. D F., Güven, Özden Özel, Coles, Simon J., Adler, Philip D.F., Özel Güven, Özden, Hökelek, Tuncer, Simon J. Coles, Tuncer Hökelek, Coles, S. J., Özden Özel Güven, Philip D. F. Adler, Çapanlar, Seval   +12 more
core   +1 more source

Methyl 2-oxo-2H-chromene-3-carboxylate [PDF]

, 2012
The title compound, C11H8O4, features an almost planar molecule (r.m.s. deviation = 0.033 Å for all non-H atoms). In the crystal, the molecules are linked via C-H...O hydrogen bonds, forming two-dimensional networks lying parallel to (1-21)
Bolte, Michael, Arshad, Muhammad, Michael Bolte, Aalia Ibrar, Muhammad Arshad, Ibrar, Aalia, Saeed, Aamer, Aamer Saeed   +7 more
core   +1 more source

Analysis of O-H...O hydrogen bonds [PDF]

, 1977
Some geometrical parameters associated with the donor and the acceptor end of O-H...O hydrogen bonds have been analysed. The data consist of 356 hydrogen bonds from reported crystal structures of amino acids, peptides and oligosaccharides.
Ramakrishnan, C., Mitra, Jayati
core   +1 more source

N-(2,6-Diisopropyl­phen­yl)formamide toluene 0.33-solvate [PDF]

, 2012
The crystal packing of the title compound, C13H19NO·0.33C7H8, shows a channel at [001], which contains grossly disordered toluene solvent mol­ecules. The angle between the benzene ring and the mean plane of the formamide group is 71.1 (1)°.
Matthias Berger, Jan W. Bats, Bats, Jan W., Auner, Norbert, Norbert Auner, Berger, Matthias   +5 more
core   +1 more source

Ethyl 2-(2,5-dioxo-4,4-diphenylimidazolidin-1-yl)acetate

IUCrData, 2017
The five-membered ring of the title compound, C19H18N2O4, adopts an envelope conformation. In the crystal, pairwise N—H...O hydrogen bonds form centrosymmetric dimers which are connected into chains parallel to the c-axis direction by pairwise C—H...O ...
Youssef Ramli, Rachida Akrad, Walid Guerrab, Jamal Taoufik, Mhamed Ansar, Joel T. Mague   +5 more
doaj   +1 more source

2-Amino-4-methoxy-6-methylpyrimidin-1-ium trifluoroacetate

IUCrData, 2016
In the title molecular salt, C6H10N3O+·C2F3O2−, the pyrimidinium cation is essentially planar, with a maximum deviation of 0.042 (3) Å for all non-H atoms.
Muthaiah Jeevaraj, Bellarmin Edison, Savaridasson Jose Kavitha, Kanagasabapathy Thanikasalam, Sebastian Britto, Kasthuri Balasubramani   +5 more
doaj   +1 more source

5,13-Bis(4-methoxyphenyl)dinaphtho[2,3-b:2′,3′-d]thiophene S,S-dioxide dichloromethane hemisolvate

IUCrData, 2019
The title compound, C34H24O4S·0.5CH2Cl2, crystallizes with two independent molecules and one dichloromethane solvent molecule in the asymmetric unit. The crystal packing is consolidated by C—H...O hydrogen bonds.
R. Manickam, G. Jagadeesan, S. Muhamad Rafiq, A. K. Mohanakrishnan, G. Srinivasan   +4 more
doaj   +1 more source

Diethyl [(4-bromophenyl)(5-chloro-2-hydroxyanilino)methyl]phosphonate

Acta Crystallographica Section E, 2009
In the title compound, C17H20BrClNO4P, intermolecular C—H...O and N—H...O hydrogen bonds form centrosymmetric R22(10) dimers linked through O—H...O intermolecular hydrogen bonds, which form centrosymmetric R22(16) dimers ...
V. H. H. Surendra Babu, M. Krishnaiah, G. Syam Prasad, C. Suresh Reddy, Rajni Kant   +4 more
doaj   +1 more source