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C-H...N HYDROGEN BOND

(Meth­­oxy­methyl­­idene)di­methyl­aza­nium tetra­phenyl­borate aceto­nitrile monosolvate

(Meth­­oxy­methyl­­idene)di­methyl­aza­nium tetra­phenyl­borate aceto­nitrile monosolvate

... CN bond lengths are ...The C—O bond length of 1.2978 (15) A ˚ shows double-bond character, pointing towards charge delocaliza- tion within the NCO plane of the iminium ...ion. ...

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3,6 Dioxa­octane 1,8 di­ammonium bis­­(tri­chloro­acetate)

3,6 Dioxa­octane 1,8 di­ammonium bis­­(tri­chloro­acetate)

... central CC ...through NH O and NH Cl hydrogen bonds, resulting in the formation of hydrogen- bonded rings ...The hydrogen-bonded rings are formed within a ...

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Di­chloro­(di 2 pyridylamine)gold(III) chloride

Di­chloro­(di 2 pyridylamine)gold(III) chloride

... by ESI–MS, 1 H NMR spectroscopy, elemental analysis and X-ray structural analysis. The compound possesses crystal- lographically imposed mirror symmetry. The DPA ligand coordinates to the gold(III) centre in a ...

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Hydrazinium 2 amino 4 nitro­benzoate dihydrate: crystal structure and Hirshfeld surface analysis

Hydrazinium 2 amino 4 nitro­benzoate dihydrate: crystal structure and Hirshfeld surface analysis

... a hydrogen bond (see below). The N3—N4 bond length in (I) is ...carboxylate C—O bond lengths, ...O(carboxylate) hydrogen bond, Table 1, a significant twist of the ...

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An unusually short inter­molecular N—H⋯N hydrogen bond in crystals of the hemi hydro­chloride salt of 1 exo acetamido­pyrrolizidine

An unusually short inter­molecular N—H⋯N hydrogen bond in crystals of the hemi hydro­chloride salt of 1 exo acetamido­pyrrolizidine

... hydrogen bond. Nevertheless, all contacts appear to involve hydrogen atoms, with the overwhelming majority being H H ...by hydrogen atoms, giving H Cl/Cl H (16.2%) ...

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Highly fluorinated naphthalenes and bifurcated C–H⋯F–C hydrogen bonding

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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R22(8) motifs in Aminopyrimidine sulfonate/carboxylate interactions: Crystal structures of pyrimethaminium benzenesulfonate monohydrate (2:2:1) and 2-amino-4,6-dimethylpyrimidinium sulfosalicylate dihydrate (4:2:2)

R22(8) motifs in Aminopyrimidine sulfonate/carboxylate interactions: Crystal structures of pyrimethaminium benzenesulfonate monohydrate (2:2:1) and 2-amino-4,6-dimethylpyrimidinium sulfosalicylate dihydrate (4:2:2)

... of N-H...N hydrogen bonds (motif IV) involving two aminopyrimidinium molecules (cations C and ...of C-H...O hydrogen bonds involving centro- symmetrically paired ...

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Syntheses and Structure Elucidations of Ternary Metal [Cu/Co] Complexes with Nucleic Acid Constituents

Syntheses and Structure Elucidations of Ternary Metal [Cu/Co] Complexes with Nucleic Acid Constituents

... by N-H···O intramolecular interaction between the cytosine base and the phosphate oxygen ...form N-H···Cl hydrogen ...of N-H···O, C-H···O and O-H···O ...

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(E) 2 [1 (1 Benzo­thio­phen 3 yl)ethyl­­idene]hydrazinecarbo­thio­amide methanol hemisolvate

(E) 2 [1 (1 Benzo­thio­phen 3 yl)ethyl­­idene]hydrazinecarbo­thio­amide methanol hemisolvate

... the C N double bond and is stabilized by an intramolecular NH N hydrogen bond, resulting in an S(5) ring ...of NH O, NH N, O— ...

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3 {(E) [1 (2 Hy­dr­oxy­phen­yl)ethyl­­idene]amino} 1 (2 methyl­phen­yl)thio­urea

3 {(E) [1 (2 Hy­dr­oxy­phen­yl)ethyl­­idene]amino} 1 (2 methyl­phen­yl)thio­urea

... O—H N hydrogen bond ensures the coplanarity of the central ...The H atoms of the NH groups are syn and the conformation about the N C double bond ...by ...

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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

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 CH O hydrogen bonds which, in combination with the NH O hydrogen bond within the selected asymmetric unit, generates a second chain, this time running parallel to the ...

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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

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 CH O hydrogen bonds which, in combination with the NH O hydrogen bond within the selected asymmetric unit, generates a second chain, this time running parallel to the ...

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Crystal structure of bis­­[(phenyl­methanamine κN)(phthalocyaninato κ4N)zinc] phenyl­methan­amine tris­­olvate

Crystal structure of bis­­[(phenyl­methanamine κN)(phthalocyaninato κ4N)zinc] phenyl­methan­amine tris­­olvate

... donor NH N hydrogen bond to a non-coordinating N20-benzylamine molecule which is folded to enable a donor NH N hydrogen bond to an ...

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Crystal structure of 4 (prop 2 yn­yl­oxy) 2,2,6,6 tetra­methyl­piperidin 1 ox­yl

Crystal structure of 4 (prop 2 yn­yl­oxy) 2,2,6,6 tetra­methyl­piperidin 1 ox­yl

... The N—O bond length of the piperidin-1-oxyl unit is ...crystal, CH O hydrogen bonds combine with unusual CH interactions involving the alkyne unit as acceptor to ...

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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 ...O—H N hydrogen bonds, ...

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catena Poly[N [4 (1H benzimidazol 3 yl)but­yl]benzimidazolium [[di­iodo­bis­muthate(III)] di μ2 iodo]]

catena Poly[N [4 (1H benzimidazol 3 yl)but­yl]benzimidazolium [[di­iodo­bis­muthate(III)] di μ2 iodo]]

... imino N atoms; the cation has inversion symmetry, involving disorder of this H ...disordered NH N hydrogen bond, forming a chain that runs along the a axis of the ...

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N′ [(1E) 1 (2 Fluoro­phen­yl)ethyl­­idene]pyridine 3 carbohydrazide

N′ [(1E) 1 (2 Fluoro­phen­yl)ethyl­­idene]pyridine 3 carbohydrazide

... a C=O bond length of 1.221 (2) A ˚ . In the crystal, a bifurcated NH (O,N) hydrogen bond is formed between the amide H atom and the keto O and imine N atoms ...

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Form II of adipic acid–nicotinohydrazide (1/2)

Form II of adipic acid–nicotinohydrazide (1/2)

... of hydrogen bonds, formed by three NH O hydrogen bonds and one O—H N hydrogen ...O—H N hydrogen bond formed between the carboxyl group and the ...

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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

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 CH O hydrogen bonds present in ...by NH O and NH N hydrogen bonds, forming layers parallel to ...by CH O and ...

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