C-H...N HYDROGEN BONDS
![Crystal structure and Hirshfeld surface analysis of two imidazo[1,2 a]pyridine derivatives: N tert butyl 2 (4 methoxyphenyl) 5 methylimidazo[1,2 a]pyridin 3 amine and N tert butyl 2 [4 (dimethylamino)phenyl]imidazo[1,2 a]pyridin 3 amine](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)
Crystal structure and Hirshfeld surface analysis of two imidazo[1,2 a]pyridine derivatives: N tert butyl 2 (4 methoxyphenyl) 5 methylimidazo[1,2 a]pyridin 3 amine and N tert butyl 2 [4 (dimethylamino)phenyl]imidazo[1,2 a]pyridin 3 amine
... by N—H N hydrogen bonds, forming chains propagating along the [001] ...by C—H interactions, forming layers parallel to the (010) ...features N—H N ...
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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 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 C—H O hydrogen bonds present in ...by N—H O and N—H N hydrogen bonds, forming layers parallel to ...by C—H O and ...
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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
... from C—H N hydrogen bonds centred at (n + ...0.5, n + 0.5, n + 0.5) (n = zero or integer) and the rings built from C—H O hydrogen ...
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Crystal structures of N (pyridin 2 ylmethyl)pyrazine 2 carboxamide (monoclinic polymorph) and N (pyridin 4 ylmethyl)pyrazine 2 carboxamide1
... bifurcated-acceptor C—H O hydrogen bonds, forming sheets lying parallel to ...via C—H N hydrogen bonds, forming a three-dimensional ...by N—H ...
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A new solvate of afatinib, a specific inhibitor of the ErbB family of tyrosine kinases
... form C—H O hydrogen bonds with the O atoms of the major moieties of molecule B, capping a tetramer of THF units on both ...weak C—H N hydrogen bonds ...an ...
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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 ...
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Di μ acetato μ aqua bis[acetatobis(1H benzimidazole)cobalt(II)]
... imine N atoms from two benzimidazole molecules and one monodentate acetate group ...molecule hydrogen bonds to the uncoordinated oxygen atom of the monodentate acetate groups within the dimer with a ...
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5 Chloro 2 nitrobenzaldehyde isonicotinoylhydrazone: a three dimensional framework built from N—H⋯N and C—H⋯O hydrogen bonds
... of N— H N and C—H O hydrogen bonds (Table 2) into a three- dimensional framework structure, whose formation is readily analysed in terms of a number of very simple ...
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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
... O hydrogen bond, but the supramolecular aggregation of (I) depends solely on rather long, and thus fairly weak, C—H N and C— H O hydrogen bonds (Table 2), which ...
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N,N′ Bis(isonicotinoyl)hydrazine dihydrate at 120 (2) K: a three dimensional framework built from N—H⋯O, O—H⋯O, O—H⋯N and C—H⋯O hydrogen bonds
... The molecular structure of compound (I), showing the atom-labelling scheme and the hydrogen bonds within the selected molecular aggregate. Displacement ellipsoids are drawn at the 30% probability level. ...
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2 (4 Bromophenyl) N (pyrazin 2 yl)acetamide
... weak N—H N hydrogen bonds link the molecules into chains along ...via C—H N and C— H O hydrogen bonds, forming two-dimensional networks ...
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3,6 Dioxaoctane 1,8 diammonium bis(trichloroacetate)
... central C—C ...through N—H O and N—H Cl hydrogen bonds, resulting in the formation of hydrogen- bonded rings ...The hydrogen-bonded rings are formed ...
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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 through ...
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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, N—H O, O—H ...
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Crystal structure of ethyl (2Z) 2 cyano 3 [(3 methyl 1 phenyl 1H pyrazol 5 yl)amino]prop 2 enoate
... N7—H7a···O3 hydrogen bonds (Table 2 and Fig. 1) while C—H···O and C—H···N interactions direct the packing into a layer structure ...
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A monoclinic polymorph of 4 (2H 1,3 benzodioxol 5 yl) 1 (4 methylphenyl) 1H pyrazol 5 amine
... an N-bound p-tolyl group and a C-bound 1,3-benzodioxolyl fused-ring system on either side of the C atom bearing the amino ...the N- and C- bound rings are ...methylene C atom ...
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4 [(4 Bromophenyl)amino] 2 methylidene 4 oxobutanoic acid
... crystal, N—H O hydrogen bonds formed by amide groups and O—H O hydrogen bonds formed by carboxylic acid groups are observed and supported additionally by weak C— ...
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Crystal structure of 7′ (4 chlorophenyl) 2′′ (4 methoxyphenyl) 7′,7a',7′′,8′′ tetrahydro 1′H,3′H,5′′H dispiro[indoline 3,5′ pyrrolo[1,2 c]thiazole 6′,6′′ quinoline] 2,5′′ dione and an unknown solvent
... an N—H N hydrogen bond and a series of C—H O hydrogen bonds, forming layers lying parallel to the (101) ...by C—H interactions and offset – ...
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4 (Dimethylamino)pyridinium 4 toluenesulfonate
... structure N—H···O hydrogen bonds link individual pairs of cations and anions and the structure is further stabilized by an extensive network of C—H···O hydrogen ...
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