C-H...O AND C-H...N HYDROGEN BONDING
![Crystal structure of catena poly[bis(tetraethylammonium) [tetraaquatris(μ dicyanamido κ2N1:N5)bis(dicyanamido κN1)dicobaltate(II)] dicyanamide]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)
Crystal structure of catena poly[bis(tetraethylammonium) [tetraaquatris(μ dicyanamido κ2N1:N5)bis(dicyanamido κN1)dicobaltate(II)] dicyanamide]
... by O—H N hydrogen bonding between aqua ligands and dicyanamido ligands or the dicyanamide ...addition, C—H N interactions are present between the tetraethylammonium ...
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4 [(4 Bromophenyl)amino] 2 methylidene 4 oxobutanoic acid
... The N–C(=O) bond lengths of ...classical N—H···O and O—H···O hydrogen bonds are observed supported additionally by weak C—H···O ...
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Highly fluorinated naphthalenes and bifurcated C–H⋯F–C hydrogen bonding
... weak hydrogen bonding acceptor groups, Dunitz and Taylor examined the C – F group 6 in a survey of crystal structures from the Cambridge Structural Database 7 and Protein Data ...on O – ...
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Crystal structure analysis of [5 (4 methoxyphenyl) 2 methyl 2H 1,2,3 triazol 4 yl](thiophen 2 yl)methanone
... weak C—H N hydrogen-bonding dimeric motifs (Table 1) involving the methyl hydrogen H15C (sp 3 ) of the methoxy group with the triazol nitrogen N3 [C15 N3 = ...thiophene ...
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Ethyl 2 [({[4 amino 5 cyano 6 (methylsulfanyl)pyridin 2 yl]carbamoyl}methyl)sulfanyl]acetate monohydrate
... intramolecular C— H O hydrogen bond, and an N—H O hydrogen-bonding interaction involving the lattice water ...involves N—H N, ...
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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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3 Carboxypyridine N oxide: supramolecular aggregation through O—H⋯O and C—H⋯O interactions
... OÐH O and weak CÐH O hydrogen bonds makes them useful in crystal design for the preparation of molecular materials with controlled physical properties (Desiraju, 1995; Desiraju & Steiner, ...OÐH ...
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N—H⋯O=C hydrogen bonding and O⋯O=C repulsive interactions in tert butoxycarbonyl L leucyl L alanine ethyl ester (Boc L Leu L Ala OEt)
... six hydrogen bonds of the type ±NH O C. All the ester C O groups are perpendicular to the column ...electronegative O atoms, viz. O O ...
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Crystal structure of trans diammine(1,4,8,11 tetraazacyclotetradecane κ4N)chromium(III) tetrachloridozincate chloride monohydrate from synchrotron data
... through N—H Cl and O—H Cl hydrogen-bonding ...includes N—H Cl, C—H Cl, N—H O and O—H Cl hydrogen ...
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4 Dimethylaminopyridinium 2,4 dinitrophenolate: supramolecular aggregation through N—H⋯O, C—H⋯O, C—H⋯π and π–π interactions
... or hydrogen-bonding interactions (In et al., 1997). The bonding of electron±donor acceptor complexes depends strongly on the nature of the ...appropriate hydrogen-bonding network ...
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Bis(3 aminopyrazine 2 carboxylato κ2N1,O)diaquacobalt(II)
... the c axis channels with a square cross-section are ...and N—H···O interactions involving the water molecules and amino functions as donors and carboxylate O atoms as well as the ...
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ISOLATION AND IDENTIFICATION OF PHYTOCHEMICAL CONSTITUENTS FROM VARIOUS POLAR SOLVENT CRUDE LEAF EXTRACTS OF VULNERABLE AROMATIC TREE CHLOROXYLON SWIETENIA DC
... The Clarus 680 GC was used in the analysis employed a fused silica column, packed with Elite-5MS (5% biphenyl 95% dimethylpolysiloxane, 30 m × 0.25 mm ID × 250 μm df) and the components were separated using Helium as ...
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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 ...
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Crystal structure of 1 ethyl 3 (2 oxo 1,3 dithiol 4 yl)quinoxalin 2(1H) one
... other N—C distances are decidedly shorter, ranging from ...longest C—C bond of the benzene ring is the one that is shared with the N-heterocycle [C6—C11, ...adjacent N—C ...
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[2 Hydroxy 1,1 bis(hydroxymethyl)ethyl]bis(2 hydroxyethyl)ammonium 4 nitrobenzoate monohydrate
... by O—H O hydrogen ...the O— H O hydrogen bonds, there are some weaker intra- molecular N—H O hydrogen bonds between N1 and three of the ...
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Crystal structure of ethyl (2Z) 2 cyano 3 [(3 methyl 1 phenyl 1H pyrazol 5 yl)amino]prop 2 enoate
... ecules in the asymmetric unit, one of which shows disorder of the acetate group over two sets of sites in a 0.799 (2):0.201 (2) ratio. The phenyl group has a similar but opposite sense of twist relative to the pyrazole ...
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Crystal structure of (4 cyanopyridine κN){5,10,15,20 tetrakis[4 (benzoyloxy)phenyl]porphyrinato κ4N}zinc–4 cyanopyridine (1/1)
... 2.060 (6) A ˚ which is close to those in related zinc metallo- porphyrins of type [Zn(Porph)(L)] (Porph and L are a porphyrinato and a monodentate neutral ligand, respectively) [CSD refcodes ATUSOX (Vinodu & ...
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5 Chloro 2 nitrobenzaldehyde isonicotinoylhydrazone: a three dimensional framework built from N—H⋯N and C—H⋯O hydrogen bonds
... a C(6) chain along [001] built from C—H O(nitro) hydrogen ...clarity, H atoms not involved in the motif shown have been ...
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Synthesis and Crystal Structure of the Hydrogen Bromide Salt of 1,4,7,10 Tetrakis(2 ((4 methoxy)phenoxy) ethyl) 1,4,7,10 tetraazacyclododecane
... [10] Wardle, N.L., Herlihy, A.H., So, P.W., Bell, J.D. and Bligh, S.W.A. (2007) Synthesis of a Novel ‘Smart’ Bifunctional Chelating Agent 1-(2-[β,d-Galactopyranosyloxy] ...
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4 Benzyl 3 (2 furyl) 1H 1,2,4 triazole 5(4H) thione hemihydrate
... The asymmetric unit of the title compound is composed of two independent molecules (hereafter called A and B) depicted in Fig. 1 and 2, respectively, and a water molecule of hydration. The furyl and triazole rings in ...
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