N-H...N AND N-H...O HYDROGEN BONDS.
![The crystal structures of two new coumarin derivatives: 2 (4 {2 [(2 oxo 2H chromen 4 yl)oxy]acetyl}piperazin 1 yl)acetamide and N (2,4 dimethoxybenzyl) 2 [(2 oxo 2H chromen 4 yl)oxy]acetamide](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)
The crystal structures of two new coumarin derivatives: 2 (4 {2 [(2 oxo 2H chromen 4 yl)oxy]acetyl}piperazin 1 yl)acetamide and N (2,4 dimethoxybenzyl) 2 [(2 oxo 2H chromen 4 yl)oxy]acetamide
... viz. N—H N and C—H O in (I), and N—H O and C—H N in ...by N—H O hydrogen bonds, forming chains along [110] in (I) ...
17
Bis(3 aminopyrazine 2 carboxylato κ2N1,O)diaquanickel(II) dihydrate
... intermolecular O—H···O, O—H···N and N—H···O hydrogen bonds forming two-dimensional layers parallel to (010) ...Further ...
9
Pyridine 3 carboxamide–telluric acid (1/1)
... conventional O—H N, N—H O and O—H O hydrogen bonds of moderate strength as well as by – interactions between the pyridine ...strongest ...
9
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 ...
10
trans Diaquabis(ethylenediamine κ2N,N′)copper(II) bis[3 (3 pyridyl)propionate] dihydrate
... four N atoms of the en ligands in the equatorial plane around the Cu II atom form a slightly distorted square-planar arrangement, while the slightly distorted Jahn–Teller octahedral coordination is completed by ...
10
Crystal structure of 5 [2 (9H carbazol 9 yl)ethyl] 1,3,4 oxadiazole 2(3H) thione
... figures, N— H S (orange), N—H O (dark blue) and C—H N (light blue) hydrogen bonds are drawn as coloured dashed ...
9
rac 5 Bromo N benzylisatincreatinine ethanol monosolvate
... containing N-methyl and N-phenyl substitituents (Penthala et ...by O—H···O, N—H···O and O—H···N hydrogen ...
10
[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 ...
9
Bis(piperazinium) di μ chloro pentachlorotriiododibismuthate(III) tetrahydrate
... through O—H O hydrogen bonds ...by N—H O hydrogen bonds with their neighboring piperazium cations to form a one-dimensional chain along the a axis ...
10
Crystal structure of (2 amino 7 methyl 4 oxidopteridine 6 carboxylato κ3O4,N5,O6)aqua(1,10 phenanthroline κ2N,N′)zinc trihydrate
... intermolecular N—H ··· O, O—H ··· N and O—H ··· O hydrogen bonds (Table 1) into a three-dimensional ...
10
6,7 Dimethoxy N [3 (trifluoromethyl)phenyl]quinazolin 4 amine ethanol disolvate
... Intermolecular N—H O, O—H N and O—H O hydrogen bonds and – stacking interactions between the quinazoline rings of neighbouring molecules ...
11
Reinvestigation of the crystal structure of it N (4 chlorobenzylidene) 2 hydroxyaniline : a three dimensional structure containing O—H···N, O—H···O and C—H···π(arene) hydrogen bonds
... associated intramolecular H N distance was only 1.66 A ˚ , which is very short, even for a strong O—H N hydrogen bond. Hence any conclusions drawn from the deposited atomic ...
8
Crystal structures of the Schiff base derivatives (E) N′ [(1H indol 3 yl)methylidene]isonicotinohydrazide ethanol monosolvate and (E) N methyl 2 [1 (2 oxo 2H chromen 3 yl)ethylidene]hydrazinecarbothioamide
... features N—H O, C—H O and C—H S interactions (Table ...via N—H O and C—H O hydrogen bonds, forming a helical chain along the ...
13
[N,N,N′,N′ Tetrakis(benzimidazol 2 ylmethyl)ethane 1,2 diamine]nickel(II) dinitrate methanol solvate
... amino N atoms [Ni—N3 = ...the N atoms of the other two benzimidazole groups [Ni—N4 = ...intermolecular N—H···O, N—H···N and O —H···O ...
13
2 Hydroxyimino 1 phenylethanone thiosemicarbazone monohydrate
... antifungal activities (Forman, 1964; Holan et al., 1984; Balsamo et al., 1990). The oxime (–C=N—OH) moiety is potentially ambidentate, with possibilities of coordination through nitrogen and/or oxygen atoms. It is ...
9
Bis{2 [2,5 bis(pyridin 2 yl) 1H imidazol 4 yl]pyridinium} tetracyanidoplatinate(II) tetrahydrate
... forming O—H···O, O—H···N and N—H···O hydrogen bonds, through which organic cations and anionic metal complexes are linked to form crystalline ...
10
3,6 Dioxaoctane 1,8 diammonium bis(trichloroacetate)
... than N—H O bonds involving neutral acceptors and ...These bonds traditionally are consid- ered to be salt bridges and are termed low barrier hydrogen bonds or ...
6
Crystal structure of a 2:1 piroxicam–gentisic acid co crystal featuring neutral and zwitterionic piroxicam molecules
... molecule hydrogen bonded to two piroxicam molecules, one of each conformation ...accepts hydrogen bonds from the gentisic acid via O—H N bonds between the carboxylic acid ...
14
Crystal structure of N [4 amino 5 cyano 6 (methylsulfanyl)pyridin 2 yl]acetamide hemihydrate
... by O—H N hydrogen bonds, forming slabs, and between the slabs there are weak slipped parallel – interactions [inter-centroid distance = ...
10
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 ...
9