C-H...I HYDROGEN BONDS
![Crystal structures of dibromido{N [(pyridin 2 yl κN)methylidene]picolinohydrazide κ2N′,O}cadmium methanol monosolvate and diiodido{N [(pyridin 2 yl κN)methylidene]picolinohydrazide κ2N′,O}cadmium](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)
Crystal structures of dibromido{N [(pyridin 2 yl κN)methylidene]picolinohydrazide κ2N′,O}cadmium methanol monosolvate and diiodido{N [(pyridin 2 yl κN)methylidene]picolinohydrazide κ2N′,O}cadmium
... Br hydrogen bonds, involving the solvent molecule, forming dimeric units, which are linked by C—H Br hydrogen bonds forming layers parallel to ...N—H I ...
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Crystal structures of 2,6 bis[(1H 1,2,4 triazol 1 yl)methyl]pyridine and 1,1 [pyridine 2,6 diylbis(methylene)]bis(4 methyl 1H 1,2,4 triazol 4 ium) iodide triiodide
... the C—H N hydrogen bonds between the acidic hydrogen atoms of the triazole ring and the nitrogen lone pairs of the neighboring triazole molecule (Table ...six hydrogen ...
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Crystal structures of 4 methoxy N (4 methylphenyl)benzenesulfonamide and N (4 fluorophenyl) 4 methoxybenzenesulfonamide
... actions direct a two-dimensional architecture. This is quite similar to the crystal structure of (I). Thus, the methyl and methoxy groups on the aniline ring have similar influence on the crystal structures of ...
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Crystal structures of μ oxalato bis[azido(histamine)copper(II)] and μ oxalato bis[(dicyanamido)(histamine)copper(II)]
... O) hydrogen bonds, both title compounds also exhibit a weak C— H X (X = N, O) hydrogen bond between neighboring dinuclear ...weak hydrogen bond is C3—H3 N3 v where the donor is ...
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Diethyl 5 bromo 4,7 dimethoxyindan 2,2 dicarboxylate
... The title compound, (I), was prepared for use as a building block in the syntheses of single-walled carbon nanotube (SWNT) interacting compounds. It crystallizes in the triclinic space group P1 with two ...
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Two closely related 2 (benzofuran 2 yl) 2 oxoethyl benzoates: structural differences and C—H⋯O hydrogen bonded supramolecular assemblies
... hydrogen bonds. Molecules are joined into infinite chains propagating along the c-axis by C10— H10A O3 hydrogen bonds (Table 1, ...
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Diethyl 4,7 dimethoxyindan 2,2 dicarboxylate
... the asymmetric unit (Fig. 1). The corresponding bond lengths and angles of the two molecules agree with each other, but the molecules differ in the orientation of an ester group (Table 1). In both molecules, the methoxy ...
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Crystal structures of N (3 fluorobenzoyl)benzenesulfonamide and N (3 fluorobenzoyl) 4 methylbenzenesulfonamide
... O hydrogen bonds present in the crystal structure of (I) has no structure-directing properties (leading only to dimers), while one of the C—H O and the three ...
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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
... Equimolar quantities (1.0 mmol of each component) of 3-(4- methylphenyl)-5-amino-1H-pyrazole and 3-benzoyl-2-methylbenzo- 4-pyrone were placed in an open Pyrex glass vessel and heated in an oil-bath at 373 K for 2 min. ...
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Crystal structures and Hirshfeld surface analysis of 2 (adamantan 1 yl) 5 (4 fluorophenyl) 1,3,4 oxadiazole and 2 (adamantan 1 yl) 5 (4 chlorophenyl) 1,3,4 oxadiazole
... and a halogenophenyl ring, [X = F (I), Cl (II)], in position 5 on the central 1,3,4- oxadiazole unit. The molecular structures are very similar, only the relative orientation of the halogenophenyl ring in ...
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(N,N Diisopropyldithiocarbamato)triphenyltin(IV): crystal structure, Hirshfeld surface analysis and computational study
... classical hydrogen bonds, the influence of the localized C— H interaction, Table 2, as well as interatomic H H and C H/H C contacts, Table 3, upon 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
... 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 to the [010] ...
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Crystal structure of 1,2,3,4 di O methylene α D galactopyranose
... (ring I) and oxygen atom O3 (ring II) as the flap, ...The C–O and C–C and bond lengths in the molecule are comparable with the data from the crystal structure analysis of ...
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Three closely related 1 [(1,3 benzodioxol 5 yl)methyl] 4 (halobenzoyl)piperazines: similar molecular structures but different intermolecular interactions
... one C—H O hydrogen bond and two C—H (arene) hydrogen bonds (Table 1) links the molecules into a three-dimensional framework structure, whose formation can readily be ...
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Crystal structures of 3 chloro 2 nitrobenzoic acid with quinoline derivatives: 3 chloro 2 nitrobenzoic acid–5 nitroquinoline (1/1), 3 chloro 2 nitrobenzoic acid–6 nitroquinoline (1/1) and 8 hydroxyquinolinium 3 chloro 2 nitrobenzoate
... involving H-atom transfer occurs and the H atom is located at the N site of the base ...the hydrogen-bonded acid–base units are linked by C—H O hydrogen bonds, forming a ...
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Three closely related 1 [(1,3 benzodioxol 5 yl)methyl] 4 (halobenzoyl)piperazines : similar molecular structures but different intermolecular interactions
... one C—H O hydrogen bond and two C—H (arene) hydrogen bonds (Table 1) links the molecules into a three-dimensional framework structure, whose formation can readily be ...
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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
... Sulfonylbenzotriazole derivatives are versatile synthetic intermediates both as benzotriazolyl donors (Katritzky et al., 2001) and as sulfonyl donors (Katritzky et al. , 2004) because both have good leaving groups. The ...
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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)
... In the crystal of (I), the 2:1 units are linked by C—H 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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The hydrogen bonding network in (E) 1,2 bis(1 ethylbenzimidazol 2 yl)ethene dihydrate
... Our continuing interest in the chemistry of bis(benzimidazole) systems of type (I) for use as catalysts (Stibrany, 2001), proton sponges (Stibrany et al., 2002) and geometrically constraining ligands (Stibrany et ...
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Trimethylammonium tetrafluoroborate at 100 K
... F NMR (Ishida et al., 1992), as well as by powder and single- crystal X-ray diffraction (Ishida et al., 2000). The two poly- morphic phase transitions are interrelated with changes in the mobility of the ions in the ...
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