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O) HYDROGEN BONDS

4,4′ Di­thio­diphenol: a chain of rings generated by two pairs of O—H⋯O hydrogen bonds

4,4′ Di­thio­diphenol: a chain of rings generated by two pairs of O—H⋯O hydrogen bonds

... OÐH O hydrogen bonds which link molecules head-to-tail, forming one-dimensional ...further hydrogen bonding to form a chain of rings ...

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2,2′ Di­propyl­malonic acid: intermolecular association via strong O—H⋯O hydrogen bonds

2,2′ Di­propyl­malonic acid: intermolecular association via strong O—H⋯O hydrogen bonds

... NÐH O, OÐH O and OÐH N hydrogen bonds (Desiraju, ...often, hydrogen- bonded patterns are formed which are interesting in supra- molecular design and crystal ...of hydrogen ...

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N—H⋯O and O—H⋯O hydrogen bonds in crystal engineering: trimethoprim hydrogen glutarate

N—H⋯O and O—H⋯O hydrogen bonds in crystal engineering: trimethoprim hydrogen glutarate

... the hydrogen glutarate ion makes a hydrogen-bonding pattern with NÐH groups of the trimethoprim cation which is similar to the carboxylate group (of Asp-27 of DHFR)-trimethoprim cation interaction observed ...

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Polymeric bis­­(lithium disodium nona­hydrate) deca­vanadate, {[LiNa2(H2O)9]2[V10O28]}n

Polymeric bis­­(lithium disodium nona­hydrate) deca­vanadate, {[LiNa2(H2O)9]2[V10O28]}n

... the hydrogen bonds mentioned above, a classical hydrogen-bonding network occurs in the crystal structure of ...form hydrogen bonds with O atoms on the surface of the decavanadate ...

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Crystal structure of methyl 4 (4 hy­dr­oxy­phen­yl) 6 methyl 2 oxo 1,2,3,4 tetra­hydro­pyrimidine 5 carboxyl­ate monohydrate

Crystal structure of methyl 4 (4 hy­dr­oxy­phen­yl) 6 methyl 2 oxo 1,2,3,4 tetra­hydro­pyrimidine 5 carboxyl­ate monohydrate

... by the formation of hydrogen bonds between the hydroxy- phenyl group and the water molecule and dimer formation through N—H O hydrogen bonds (Fig. 1). The dihedral angles between 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

... by O—H O hydrogen bonds, and columns of alkene molecules are linked to each other by O—H N imine hydrogen bonds ...

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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

... which is made up from the carbon atoms C1–C5 and O1 (Fig. 1). The chiral carbon atoms C1/C2/C4/C5 of the pyranose part show R-configuration and C3 shows S-configuration, in agreement with the expected configurations for ...

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Crystal structure and Hirshfeld surface analysis of 4 allyl 2 meth­­oxy 6 nitro­phenol

Crystal structure and Hirshfeld surface analysis of 4 allyl 2 meth­­oxy 6 nitro­phenol

... intramolecular hydrogen bond involving the hydroxide and the nitro group forming an S(6) ...C—H O hydrogen bonds in addition to – stacking interactions between the aromatic rings ...

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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 ...H O hydrogen bonds, augmented by – [centroid–centroid distance between adjacent pyridinium rings = ...

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

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The 1:2 adduct N,N di­methyl­ethyl­enedi­amine 1,4 diium bis­(2,4 di­nitro­phenolate)

The 1:2 adduct N,N di­methyl­ethyl­enedi­amine 1,4 diium bis­(2,4 di­nitro­phenolate)

... NÐH O hydrogen bonds and another four CÐH O hydrogen bonds (Table 2) into a three-dimensional molecular ...intermolecular hydrogen-bonding interactions, which stabilize ...

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catena Poly[[di­aquabis­(1H benz­imidazole κN3)cobalt(II)] μ succinato κO]

catena Poly[[di­aquabis­(1H benz­imidazole κN3)cobalt(II)] μ succinato κO]

... NÐH O hydrogen bonds between benzimidazole and carboxyl groups and OÐH O hydrogen bonds between coordinated water molecules and carboxyl groups (Table ...

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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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4 (3 Fluoro 4 methyl­anilino) 2 methyl­­idene 4 oxo­butanoic acid

4 (3 Fluoro 4 methyl­anilino) 2 methyl­­idene 4 oxo­butanoic acid

... The title compound, (I), crystallizes with two independent molecules (A & B) in the asymmetric unit (Fig. 1). The dihedral angle between the mean planes of the 3-fluoro-4-methylphenyl ring and the oxo-amine group is ...

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6,6′ Di­chloro 3,3′ (butane 1,4 diyl­di­oxy)­diflavone

6,6′ Di­chloro 3,3′ (butane 1,4 diyl­di­oxy)­diflavone

... CÐH O hydrogen bonds and the crystal packing is stabilized by CÐH Cl intermolecular hydrogen bonds (Table ...O1 hydrogen bond is involved in R 1 1 (5) ring ...

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Cylo­pentyl­amine monohydrate

Cylo­pentyl­amine monohydrate

... by O—H O hydrogen bonds, forming the backbone of molecular chains which run parallel to the b axis, while O—H N hydrogen bonds link the cyclopentylamine molecules to this ...

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4,4,4 Tri­fluoro 3 hy­dr­oxy 3 (tri­fluoro­meth­yl)butanoic acid

4,4,4 Tri­fluoro 3 hy­dr­oxy 3 (tri­fluoro­meth­yl)butanoic acid

... Intramolecular O—H O hydrogen bonds ...intermolecular O—H O hydrogen bonds give rise to the formation of carboxylic acid ...these hydrogen bonds, C—H ...

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Bis(2,4,6 tri­amino­pyrimidin 1 ium) sulfate penta­hydrate

Bis(2,4,6 tri­amino­pyrimidin 1 ium) sulfate penta­hydrate

... via O—H O hydrogen bonds. The combination of hydrogen- bonding interactions and – stacking leads to the formation of a three-dimensional network with alternating columns of TAPH + ...

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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

... C—H O hydrogen bonds, forming inversion dimers, which are, in turn, linked by C—H O hydrogen bonds, forming slabs lying parallel to ...

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Crystal structure of ethyl 5′′ fluoro 2′′,3 dioxo 6′,7′,8′,8a' tetra­hydro 2′H,3H,5′H di­spiro­[benzo[b]thio­phene 2,1′ indol­izine 3′,3′′ indoline] 2′ carboxyl­ate

Crystal structure of ethyl 5′′ fluoro 2′′,3 dioxo 6′,7′,8′,8a' tetra­hydro 2′H,3H,5′H di­spiro­[benzo[b]thio­phene 2,1′ indol­izine 3′,3′′ indoline] 2′ carboxyl­ate

... In the crystal, molecules are linked via pairs of N—H O hydrogen bonds, forming inversion dimers with an R228 ring motif.. The dimers are linked via C—H O hydrogen bonds, forming slabs[r] ...

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