C-H...I HYDROGEN BONDING
(Benzoylmethyl)triphenylphosphonium iodide: supramolecular zigzag chains via C—H⋯O hydrogen bonding stabilized by C—H⋯I interactions
... metrical parameters in (I) resemble those of the isomorphous nitrate salt (Pbca with Z = 8; Baby Mariyatra et al., 2002), but differ from the parent ylide (Kalyanasundari et al., 1994). The crystal structure can ...
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1,6,6 Trimethyl 1,2,6,7,8,9 hexahydrophenanthro[1,2 b]furan 10,11 dione
... Intramolecular C—H O hydrogen bonds are observed in the molecular structure (Table 2), but no intermolecular hydrogen bonding is observed in the crystal ...
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Crystal structure of bis[N (2 hydroxyethyl) N methyldithiocarbamato κ2S,S′](pyridine)zinc(II) pyridine monosolvate and its N ethyl analogue
... O(hydroxy) hydrogen bonding between the two independent hydroxy groups leads to a supramolecular zigzag chain aligned along [101] with the solvent pyridine molecules associated with the chain via (hy- ...
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Intermolecular N–H⋯O hydrogen bonding interactions in 5 fluorocytosinium salicylate
... N4—H···O2 hydrogen bonds to form a linear hydrogen-bonded supramolecular chain ...N4—H···O2 hydrogen bond was previously proposed for a single stranded poly(C) nucleotide based ...
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Crystal structure of 1 ethyl 3 (2 oxo 1,3 dithiol 4 yl)quinoxalin 2(1H) one
... of I adopts a nearly coplanar conformation ...intramolecular C—H O hydrogen- bonding interaction between the two ring systems [C O = ...bifurcated C—H O ...
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1 (4 Pyridinio) 2′ [4 pyridinio (E) methylidene]hydrazide dinitrate
... extensive hydrogen-bonding network, primarily N—H···O interactions, but with supporting C—H···O contacts, leads to a three-dimensional matrix ...short C—H···O interaction ...
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Crystal structure of (4,4′ bipyridyl κN)bis[N (2 hydroxyethyl) N isopropyldithiocarbamato κ2S,S′]zinc(II)–4,4′ bipyridyl (2/1) and its isostructural cadmium(II) analogue
... hydroxy-O– H N(pyridyl) hydrogen bonding with all but the acidic H atoms removed and (b) a view of the unit-cell contents in projection down the c axis, with the non-coordinating 4,4 0 ...
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1 [3,5 Bis(bromomethyl) 2,4,6 trimethoxybenzyl] 3,5 bis(bromomethyl) 2,4,6 trimethoxybenzene
... and C—H Br (see Table 1 for details) hydrogen bonding (dashed lines) in the title compound, forming a chain of molecules (or ribbon) running down the c ...
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Three closely related 1 [(1,3 benzodioxol 5 yl)methyl] 4 (halobenzoyl)piperazines : similar molecular structures but different intermolecular interactions
... 1-[(1,3-Benzodioxol-5-yl)methyl]piperazine is an important intermediate for the synthesis (Duncton et al., 2006; Hamid & Williams, 2007) of piribedil, 1-[(1,3-benzodioxol-5-yl)methyl]- 4-(pyrimidin-2-yl)piperazine, ...
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Crystal structure of bromido fac tricarbonyl[5 (3,4,5 trimethoxyphenyl) 3 (pyridin 2 yl) 1H 1,2,4 triazole κ2N2,N3]rhenium(I) methanol monosolvate
... weak hydrogen bonds (Fig. 2). These groups establish hydrogen bonds to two carbonyl O atoms (C8 O2 iv and C10 O3 ii ), a methoxy O atom (C9 O6 iii ) and a very weak bond with bromine as acceptor (C7 Br v ) ...
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Crystal structures of trans acetyldicarbonyl(η5 cyclopentadienyl)(dimethylphenylphosphane)molybdenum(II) and trans acetyldicarbonyl(η5 cyclopentadienyl)(ethyldiphenylphosphane)molybdenum(II)
... and C—Mo—P angles that reflect the relative steric pressure of the respective phosphine ...non-classical C—H O interactions between the acetyl ligand of one molecule and the phenyl and methyl ...
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Crystal structure, Hirshfeld surface analysis and antioxidant capacity of 2,2′ {(1E,1′E) [1,2 phenylenebis(azanylylidene)]bis(methanylylidene)}bis(5 benzyloxy)phenol
... by mirror symmetry, with the mirror bisecting the central benzene ring. It was synthesized via the condensation reaction of 1,2-diaminebenzene with 4-benzyloxy-2-hydroxybenzaldehyde. The molecule is V-shaped and there ...
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1,4,10,13 Tetraoxa 7,16 diazoniacyclooctadecane bis(hexafluorophosphate): PF6− acting as a pseudohalide
... and I (YOGZAV) anions. The hydrogen bonding in each of these structures consists of an acceptor atom above and below the pocket of the macrocycle, with two NH donor groups, one from each N atom of ...
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Structural Impact of Aza-amino Acid Substitution in β-hairpin Model Systems.
... The purpose of this research is to interrogate the structural effects of aza-amino acid incorporation into the β− strand segment of β -hairpin model systems. It is now known that aza-amino acids can be used as β -turn ...
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3 Hydroxy 1 (4 methoxybenzyl)piperidin 2 one
... O— H O hydrogen bonds link the molecules into inversion ...Weak C—H O interactions extend the hydrogen- bonding network into three ...
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C–H functionalization for hydrogen isotope exchange
... involving hydrogen isotopes makes their installation an important and continuing challenge to synthetic ...transformation, hydrogen isotope exchange requires a continually evolving preparative toolbox in ...
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Crystal structure of 1 [2 (2,6 dichlorophenyl) 4,5 diphenyl 1H imidazol 1 yl]propan 2 ol
... respectively. The phenyl ring not adjacent to the N-bonded 2-hydroxypropyl group shows the greatest twist, presumably to minimize steric interactions. In the crystal, molecules are linked by O—H N and ...
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Three closely related 1 [(1,3 benzodioxol 5 yl)methyl] 4 (halobenzoyl)piperazines: similar molecular structures but different intermolecular interactions
... 1-[(1,3-Benzodioxol-5-yl)methyl]piperazine was purchased from Sigma–Aldrich and used as received. For the synthesis of compounds (I)–(III), 1-(3-dimethylaminopropyl)-3-ethyl- carbodimide (207 mg, 1.08 mmol), ...
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N′ [(E) 5 Bromo 2 hydroxy 3 methoxybenzylidene]benzohydrazide monohydrate
... dimensional-supramolecular network in the lattice. The molecule also has a O–H···N intramolecular hydrogen bonding with a D···A distance of 2.637 (5) Å. Although there are very few weak short ring ...
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3,4 Diaminobenzonitrile
... N— H N hydrogen bonds. N—H N hydrogen bonding between the amine and nitrile groups results in chains parallel to [101] in the crystal ...N hydrogen bonds between amine groups, ...
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