C-H...O HYDROGEN BOND
Form II of adipic acid–nicotinohydrazide (1/2)
... of hydrogen bonds, formed by three N—H O hydrogen bonds and one O—H N hydrogen ...The O—H N hydrogen bond formed between the carboxyl group and ...
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Syntheses and Structure Elucidations of Ternary Metal [Cu/Co] Complexes with Nucleic Acid Constituents
... molecular hydrogen bond interactions with the base nitrogen atoms the orientation of the coordinated bases is not favorable to enable the C-H···O hydrogen bond formation, ...
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Crystal structure of [4 (2 methoxyphenyl) 3 methyl 1 phenyl 6 trifluoromethyl 1H pyrazolo[3,4 b]pyridin 5 yl](thiophen 2 yl)methanone
... The intramolecular distances H13···N3 and H17···N2, on either sides of the phenyl ring, involving the N3 and N2 atoms of the pyrazolo-pyridine rings are 2.416 (1)Å and 2.436 (2) Å respectively. The increased values ...
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Crystal structure of (1S,2S,5R) 5 acetylamino 4 oxo 2,3 diphenyl 1,3 thiazinan 1 ium 1 olate
... The O atom on the S atom of the ring is pseudo-axial on the thiazine ring and trans to both the 2-phenyl group and the acetamide group in each ...intramolecular C—H O hydrogen ...
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3 (4 Biphenyl 1 yl) 3 hydroxy 1 phenylprop 2 en 1 one
... intramolecular hydrogen bonds are observed: one approximate H-atom-centered O H O hydrogen bond, two tautomeric forms O—H O (three molecules) and ...
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The crystal structure of 1 (2 iodobenzoyl) 4 (pyrimidin 2 yl)piperazine: a three dimensional hydrogen bonded framework, augmented by π–π stacking interactions and I⋯N halogen bonds
... of C—H O hydrogen bonds which, in combination with the N—H O hydrogen bond within the selected asymmetric unit, generates a second chain, this time running parallel ...
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The crystal structure of 1 (2 iodobenzoyl) 4 (pyrimidin 2 yl)piperazine : a three dimensional hydrogen bonded framework, augmented by π π stacking interactions and I···N halogen bonds
... of C—H O hydrogen bonds which, in combination with the N—H O hydrogen bond within the selected asymmetric unit, generates a second chain, this time running parallel ...
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Crystal structures of (E) 1 {3 [(5 fluoro 2 hydroxybenzylidene)amino]phenyl}ethanone and of a fourth polymorph of (E) 1 {3 [(2 hydroxy 3 methoxybenzylidene)amino]phenyl}ethanone
... intramolecular O— H N hydrogen bond and the non-H atoms are effectively ...molecular C—H O hydrogen bond, although this is nowhere mentioned in the ...
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Crystal structures of (E) 1 {3 [(5 fluoro 2 hydroxybenzylidene)amino]phenyl}ethanone and of a fourth polymorph of (E) 1 {3 [(2 hydroxy 3 methoxybenzylidene)amino]phenyl}ethanone
... intramolecular O— H N hydrogen bond and the non-H atoms are effectively ...molecular C—H O hydrogen bond, although this is nowhere mentioned in the ...
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A Structural Investigation of the D2O Solvated, Acetone Solvated and Nonsolvated 1,4-Diazabicyclo[2.2.2]octane Complexes of the Half Sandwich Moiety [(ç5 -C5H5)(CO)2Fe]
... strong hydrogen bonding interaction is observed for ...strong C–H…F intermolecular interactions and two C–H…O hydrogen bond interactions, in which the O atom ...
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Crystal structure of 1 (3 chlorophenyl)piperazin 1 ium picrate–picric acid (2/1)
... trifurcated O—H···O four centre hydrogen bond involving a O3E—H3E···O4E intramolecular hydrogen bond and a weak C—H···O interaction with that of ...
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6 (2 Hydroxybenzoyl) 2 (4 methylphenyl) 5 methyl 7 phenylpyrazolo[1,5 a]pyrimidine: complex sheets built from C—H⋯N and C—H⋯O hydrogen bonds
... intramolecular O—H O hydrogen bond, but the supramolecular aggregation of (I) depends solely on rather long, and thus fairly weak, C—H N and C— H O ...
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Crystal structure of 4 (prop 2 ynyloxy) 2,2,6,6 tetramethylpiperidin 1 oxyl
... N—O bond length of the piperidin-1-oxyl unit is ...crystal, C— H O hydrogen bonds combine with unusual C—H interactions involving the alkyne unit as acceptor to ...
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3,6 Dioxaoctane 1,8 diammonium bis(trichloroacetate)
... central C—C ...N—H O and N—H Cl hydrogen bonds, resulting in the formation of hydrogen- bonded rings ...The hydrogen-bonded rings are formed within a ...
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Crystal structures of N2,N3,N5,N6 tetrakis(pyridin 2 ylmethyl)pyrazine 2,3,5,6 tetracarboxamide and N2,N3,N5,N6 tetrakis(pyridin 4 ylmethyl)pyrazine 2,3,5,6 tetracarboxamide
... intramolecular C—H O hydrogen bonds present in ...N—H O and N—H N hydrogen bonds, forming layers parallel to ...by C—H O and C—H ...
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(Z) 3 Hydroxy 6 [(2 methoxyphenylamino)methylene]cyclohexa 2,4 dienone
... a C—H interaction between C14—H14B and the C1–C6 benzene ring (Table ...intermolecular O—H O hydrogen bond (Table ...
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Vol 3, No 3 (2014)
... H…O=C hydrogen bond between the hydroxy group and the carbonyl one on the naphthalene ...the C=O bond vector and the least squares planes of the naphthalene ring ...
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Highly fluorinated naphthalenes and bifurcated C–H⋯F–C hydrogen bonding
... Weak hydrogen bonds have a history of controversy in the chemical and crystallographic ...of hydrogen bonds and in particular on whether hydrogen bonding was restricted to cases in which the ...
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Crystal Structure, Synthesis and Biological Activity of Ether and Ester Trans Ferulic Acid Derivatives
... intramolecular hydrogen bond and one intermolecular hydrogen bond between the hydroxyl group at C7 and O5 with a symmetry-related mole- cule forming sheets along the a ...the bond ...
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{5,5′ Dihydroxy 2,2′ [o phenylenebis(nitrilomethylidyne)]diphenolato}nickel(II) dihydrate
... bifurcated hydrogen bond which is connected to the phenolato oxygen atoms of the ...four-membered O—H···O—H interactions along the c axis and are furthered connected by ...
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