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C-H...O HYDROGEN BONDS

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

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 OH O hydrogen bond, but the supramolecular aggregation of (I) depends solely on rather long, and thus fairly weak, CH N and CH O ...

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3 (2,4 Di­chloro­phen­­oxy) 1 (4 meth­­oxy­benz­yl) 4 (4 nitro­phen­yl)azetidin 2 one

3 (2,4 Di­chloro­phen­­oxy) 1 (4 meth­­oxy­benz­yl) 4 (4 nitro­phen­yl)azetidin 2 one

... In the crystal, molecules are linked by pairs of C—H O hydrogen bonds, forming inversion dimers with R2210 loops.. The dimers are linked by further C—H O hydrogen bonds, forming sheets[r] ...

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Crystal structures of three co crystals of 4,4′ bi­pyridyl with 4 alk­­oxy­benzoic acids: 4 eth­­oxy­benzoic acid–4,4′ bi­pyridyl (2/1), 4 n propoxybenzoic acid–4,4′ bi­pyridyl (2/1) and 4 n but­­oxy­benzoic acid–4,4′ bi­pyridyl (2/1)

Crystal structures of three co crystals of 4,4′ bi­pyridyl with 4 alk­­oxy­benzoic acids: 4 eth­­oxy­benzoic acid–4,4′ bi­pyridyl (2/1), 4 n propoxybenzoic acid–4,4′ bi­pyridyl (2/1) and 4 n but­­oxy­benzoic acid–4,4′ bi­pyridyl (2/1)

... In the crystal of (I), the 2:1 units are linked by CH O hydrogen bonds (Table 1), forming a sheet structure parallel to (103) (Fig. 4). In addition, the units are stacked in a column ...

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1 (4 Methyl­phenyl­sulfon­yl) 1H 1,2,3 benzotriazole: sheets built from C—H⋯N, C—H⋯O and C—H⋯π(arene) hydrogen bonds

1 (4 Methyl­phenyl­sulfon­yl) 1H 1,2,3 benzotriazole: sheets built from C—H⋯N, C—H⋯O and C—H⋯π(arene) hydrogen bonds

... from CH N hydrogen bonds centred at (n + ...from CH O hydrogen bonds centred at (n, n, n) (n = zero or integer) ...

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2 (2 Nitro­phenyl) 4,5 benz 1,3 oxazin 6 one

2 (2 Nitro­phenyl) 4,5 benz 1,3 oxazin 6 one

... strong hydrogen bonds, the C atoms are involved in the formation of weak CH···O hydrogen bonds with the oxygen atoms O3 and O4 of the nitro group (Table 2 and ...

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4 (Di­methyl­amino)pyridinium 4 toluene­sulfonate

4 (Di­methyl­amino)pyridinium 4 toluene­sulfonate

... N—H···O hydrogen bonds link individual pairs of cations and anions and the structure is further stabilized by an extensive network of CH···O hydrogen bonds, ...

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Crystal structure of 7′ (4 chloro­phen­yl) 2′′ (4 meth­­oxy­phen­yl) 7′,7a',7′′,8′′ tetra­hydro 1′H,3′H,5′′H di­spiro­[indoline 3,5′ pyrrolo­[1,2 c]thia­zole 6′,6′′ quinoline] 2,5′′ dione and an unknown solvent

Crystal structure of 7′ (4 chloro­phen­yl) 2′′ (4 meth­­oxy­phen­yl) 7′,7a',7′′,8′′ tetra­hydro 1′H,3′H,5′′H di­spiro­[indoline 3,5′ pyrrolo­[1,2 c]thia­zole 6′,6′′ quinoline] 2,5′′ dione and an unknown solvent

... N hydrogen bond and a series of CH O hydrogen bonds, forming layers lying parallel to the (101) ...by CH interactions and offset – interactions [intercentroid ...

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Crystal structure of 10 benzyl 9 (3,4 di­meth­­oxy­phen­yl) 3,3,6,6 tetra­methyl 3,4,6,7,9,10 hexa­hydro­acridine 1,8(2H,5H) dione

Crystal structure of 10 benzyl 9 (3,4 di­meth­­oxy­phen­yl) 3,3,6,6 tetra­methyl 3,4,6,7,9,10 hexa­hydro­acridine 1,8(2H,5H) dione

... methine C atom displaced from the mean plane of the other four atoms by ...tetrasubsituted C atoms as the flap ...of CH O hydrogen bonds, forming inversion dimers, which ...

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A new solvate of afatinib, a specific inhibitor of the ErbB family of tyrosine kinases

A new solvate of afatinib, a specific inhibitor of the ErbB family of tyrosine kinases

... form CH O hydrogen bonds with the O atoms of the major moieties of molecule B, capping a tetramer of THF units on both ...weak CH N hydrogen bonds ...

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Crystal structures of the recreational drug N (4 meth­­oxy­phen­yl)piperazine (MeOPP) and three of its salts

Crystal structures of the recreational drug N (4 meth­­oxy­phen­yl)piperazine (MeOPP) and three of its salts

... N—H O and CH O hydrogen bonds, with chains of this type further linked by CH (arene) hydrogen bonds to form a three-dimensional ...(4– ...

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Crystal structure of (2 amino 7 methyl 4 oxido­pteridine 6 carboxyl­ato κ3O4,N5,O6)aqua­(1,10 phenanthroline κ2N,N′)copper(II) trihydrate

Crystal structure of (2 amino 7 methyl 4 oxido­pteridine 6 carboxyl­ato κ3O4,N5,O6)aqua­(1,10 phenanthroline κ2N,N′)copper(II) trihydrate

... N—H O, OH N and OH O hydrogen bonds (Table 2) link the complex molecules and lattice water molecules into a layer parallel to (001) ...weak ...

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4 Fluoro 3 phen­oxy­benzoic acid

4 Fluoro 3 phen­oxy­benzoic acid

... intramolecular CH interaction with the H atom bonded to ...involving OH O hydrogen bonds (Table ...via CH O and CH F inter- ...

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Di μ acetato μ aqua bis­­[acetatobis(1H benzimidazole)cobalt(II)]

Di μ acetato μ aqua bis­­[acetatobis(1H benzimidazole)cobalt(II)]

... molecule hydrogen bonds to the uncoordinated oxygen atom of the monodentate acetate groups within the dimer with a short H···O distance of ...with CO bonds of ...the ...

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The hydrogen bonding network in (E) 1,2 bis­­(1 ethyl­benzimidazol 2 yl)ethene dihydrate

The hydrogen bonding network in (E) 1,2 bis­­(1 ethyl­benzimidazol 2 yl)ethene dihydrate

... whilst the latter link columns of molecules (II) to these chains (Fig. 2). The result is a structure which, when viewed along the b axis, appears as two-dimensional layers parallel to the (100) planes (Fig. 3). Each ...

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(E) 3,4,5 Trimeth­­oxy N′ [(6 meth­­oxy 4 oxo 4H chromen 3 yl)methyl­­idene]benzohydrazide monohydrate

(E) 3,4,5 Trimeth­­oxy N′ [(6 meth­­oxy 4 oxo 4H chromen 3 yl)methyl­­idene]benzohydrazide monohydrate

... by OH···O hydrogen bonds and weak OH···O, CH···O intermolecular interactions (Table ...

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Crystal structure analysis of [5 (4 meth­­oxy­phen­yl) 2 methyl 2H 1,2,3 triazol 4 yl](thio­phen 2 yl)methanone

Crystal structure analysis of [5 (4 meth­­oxy­phen­yl) 2 methyl 2H 1,2,3 triazol 4 yl](thio­phen 2 yl)methanone

... intramolecular CH O and CH N hydrogen ...intermolecular CH O and CH hydrogen bonds, while CH N hydrogen ...

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Crystal structure of 1,2,3,4 di O methyl­ene α D galacto­pyran­ose

Crystal structure of 1,2,3,4 di O methyl­ene α D galacto­pyran­ose

... The CO and CC and bond lengths in the molecule are comparable with the data from the crystal structure analysis of 1,2,3,5-di-O-methylene-α-D-xylofuranose (Tiritiris et ...structure, ...

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Crystal structure of catena poly[bis­­(tetra­ethyl­ammonium) [tetra­aqua­tris­(μ dicyanamido κ2N1:N5)bis­(dicyanamido κN1)di­cobaltate(II)] dicyanamide]

Crystal structure of catena poly[bis­­(tetra­ethyl­ammonium) [tetra­aqua­tris­(μ dicyanamido κ2N1:N5)bis­(dicyanamido κN1)di­cobaltate(II)] dicyanamide]

... by hydrogen bonds across the non-coordinating dca anions (N51 and N55/56) and by hydrogen bonds involving N1 and N25 of the mono-dentate non-bridging dca ...the OH N ...

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4 [(4 Bromo­phenyl)amino] 2 methyl­­idene 4 oxo­butanoic acid

4 [(4 Bromo­phenyl)amino] 2 methyl­­idene 4 oxo­butanoic acid

... and OH···O hydrogen bonds are observed supported additionally by weak CH···O intermolecular interactions between the 2-methylidene and amide groups (Table 1, ...

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Facile Preparation of 1,2 Diols from Chalcones: An NMR Spectroscopy and X Ray Crystallography Study

Facile Preparation of 1,2 Diols from Chalcones: An NMR Spectroscopy and X Ray Crystallography Study

... (1), c = ...gen bonds O-H···O and C-H···O interactions and adjacent molecules are interconnected by inter- molecular weak C-H···π and ...

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