N′-(4-Hydroxy-3-methoxybenzylidene)isonicotinohydrazide monohydrate

2007 ◽  
Vol 63 (3) ◽  
pp. o1119-o1120 ◽  
Author(s):  
Xue-Fang Shi ◽  
Lei He ◽  
Guo-Zhun Ma ◽  
Cui-Cui Yuan
Keyword(s):  
Hydrogen Bonds ◽  
Water Molecule ◽  
Title Compound ◽  
Crystal Packing ◽  
Asymmetric Unit ◽  
Solvent Water Molecule ◽  
Solvent Water ◽  
Compound C

The asymmetric unit of the title compound, C14H13N3O3·H2O, contains one molecule of N′-(4-hydroxy-3-methoxybenzylidene)isonicotinohydrazide and one solvent water molecule. The crystal packing is stabilized by O—H...N and O—H...O hydrogen bonds.

3,3′-Diethyl-1,1′-(ethane-1,2-diyl)dibenzimidazolium dibromide dihydrate

2007 ◽  
Vol 63 (11) ◽  
pp. o4263-o4263
Author(s):  
Xiu-Mei Wu ◽  
Qing-Xiang Liu ◽  
Xiu-Guang Wang ◽  
Hai-Bin Song ◽  
Zhan-Ying Zheng
Keyword(s):  
Water Molecule ◽  
Title Compound ◽  
Rotation Axis ◽  
Ethyl Bromide ◽  
Benzimidazole Ring ◽  
Asymmetric Unit ◽  
Solvent Water Molecule ◽  
Bromide Anion ◽  
Solvent Water ◽  
Compound C

The title compound, C20H24N4 2+·2Br−·2H2O, was prepared from benzimidazole by stepwise alkylation with ethyl bromide followed by 1,2-bromoethane. The dication lies about a twofold rotation axis through the centre of the ethanyl group that links the two planar benzimidazolium residues. The asymmetric unit also contains a bromide anion and a solvent water molecule. The two benzimidazole ring systems are parallel.

2′,7′-Di-4-pyridylspiro[cyclopropane-1,9′-fluorene] hemihydrate

2006 ◽  
Vol 62 (7) ◽  
pp. o3013-o3014 ◽  
Author(s):  
Zi-Xing Wang ◽  
Hai-Yao Lin ◽  
Ping Lu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Water Molecule ◽  
Title Compound ◽  
Dihedral Angles ◽  
Asymmetric Unit ◽  
Solvent Water Molecule ◽  
One Dimensional ◽  
Solvent Water ◽  
Compound C

The asymmetric unit of the crystal structure of the title compound, C25H18N2·0.5H2O, contains two independent dipyridylspiro(cyclopropanefluorene) (CPF) molecules and one solvent water molecule. The two CPF molecules show significantly different dihedral angles between the pyridine rings and fluorene plane. The water molecule links with the CPF molecules via O—H...N hydrogen bonding to form a one-dimensional supramolecular chain.

scholarly journals (10R,13R)-17-(6-Hydroxy-5-methylheptan-2-yl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol hemihydrate: a bioactive steroid isolated from the Indian herbArtemisia reticulata

IUCrData ◽  
2017 ◽  
Vol 2 (8) ◽  
Author(s):  
A. K. Bauri ◽  
Sabine Foro ◽  
Nhu Quynh Nguyen Do
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Asymmetric Unit ◽  
Solvent Water Molecule ◽  
Solvent Water ◽  
Compound C ◽  
Steroidal Compound ◽  
Independent Molecules

The title tetracyclic steroidal compound, C27H46O2·0.5H2O, crystallized as a monohydrate with two independent molecules (1and2) in the asymmetric unit. In both molecules, the conformations of the three cyclohexane rings (A,BandC) are chair, half-chair and chair, respectively. The fourth ring,D, has a twisted conformation on the bond linking theDandCrings. The crystal structure is stabilized by hydrogen bonding with the two independent molecules being linked through the solvent water moleculeviavarious O—H...O hydrogen bonds, forming layers parallel to (-101).

scholarly journals 5-Bromophthalazine hemihydrate

2012 ◽  
Vol 68 (8) ◽  
pp. o2421-o2421
Author(s):  
Mingjian Cai
Keyword(s):  
Hydrogen Bonds ◽  
Water Molecule ◽  
Title Compound ◽  
Rotation Axis ◽  
Two Dimensional ◽  
Solvent Water Molecule ◽  
Solvent Water ◽  
Compound C ◽  
Dimensional Network ◽  
The Mean

The title compound, C8H5BrN2·0.5H2O, is a phthalazine derivative synthesized from 3-bromobenzene-1,2-dicarbaldehyde and hydrazine. The molecule is essentially planar, the deviation from the mean plane of the phthalazine ring being 0.015 (3) Å. The O atom of the solvent water molecule is situated on a twofold rotation axis. In the crystal, O—H...N hydrogen bonds and short N...Br [2.980 (3) Å] contacts lead to the formation of a two-dimensional network parallel to (101).

scholarly journals 4-[(4-Chlorophenyl)(phenyl)methyl]piperazin-1-ium picrate monohydrate

2012 ◽  
Vol 68 (8) ◽  
pp. o2486-o2486
Author(s):  
Yanxi Song ◽  
C. S. Chidan Kumar ◽  
S. Chandraju ◽  
S. Naveen ◽  
Hongqi Li
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Title Compound ◽  
Chair Conformation ◽  
Equatorial Position ◽  
Asymmetric Unit ◽  
Methyl Substituent ◽  
Solvent Water ◽  
Compound C

The asymmetric unit of the title compound, C17H20ClN2+·C6H2N3O7−·H2O, contains a piperazin-1-ium cation, a picrate anion and one solvent water molecule. The piperazene ring is protonated at one N atom and adopts a highly distorted chair conformation with the chloropheny(phenyl)methyl substituent on the second N atom in an equatorial position. The crystal structure is stabilized by O—H...O, N—H...O and C—H...O hydrogen bonds.

scholarly journals 5,31-Diaza-2,8,15,18,21,28,34,41,44,47-decaoxaheptacyclo[46.4.0.04,32.06,30.09,14.022,27.035,40]dopentaconta-1(48),4,6(30),9(14),10,12,22(27),23,25,31,35(40),36,38,49,51-pentadecaene monohydrate

IUCrData ◽  
2016 ◽  
Vol 1 (10) ◽  
Author(s):  
Jong Sik Kim ◽  
Jai Young Lee ◽  
So Yeon Lee ◽  
Tae Yeon Lee ◽  
Wonbo Sim
Keyword(s):  
Hydrogen Bonds ◽  
Water Molecule ◽  
Title Compound ◽  
Pyrazine Ring ◽  
Solvent Water Molecule ◽  
Solvent Water ◽  
Compound C

In the title compound, C40H40N2O10·H2O, each dual 17-crown-5 unit crystallizes with one solvent water molecule. The crown units are connected by a pyrazine ring. One oxo group in a crown moiety is disordered over two sites, with a refined occupancy ratio close to 1:1. The water molecule is linked to the crown unit by bifurcated O—H...O hydrogen bonds. In the crystal, molecules are linked by weak C—H...N and C—H...O interactions for the packing.

scholarly journals Piperazinium hydrogenarsenate monohydrate

2007 ◽  
Vol 63 (3) ◽  
pp. m905-m907 ◽  
Author(s):  
Hazel S. Wilkinson ◽  
William T. A. Harrison
Keyword(s):  
Hydrogen Bonds ◽  
Water Molecule ◽  
Title Compound ◽  
Water Molecules ◽  
Asymmetric Unit ◽  
Compound C

In the title compound, C4H12N2 2+·HAsO4 2−·H2O, the component species interact by way of N—H...O and O—H...O hydrogen bonds, the latter leading to infinite sheets of HAsO4 2− anions and water molecules containing R 6 6(18) loops. The asymmetric unit contains one anion, one water molecule and half each of two centrosymmetric cations.

Ethylammonium saccharinate

2006 ◽  
Vol 62 (5) ◽  
pp. o1800-o1801
Author(s):  
Zi-Liang Wang ◽  
Lin-Heng Wei ◽  
Ming-Xue Li ◽  
Jing-Ping Wang
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Crystal Packing ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Framework Structure ◽  
Compound C

The asymmetric unit of the title compound, C2H8N+·C7H4NO3S−, contains a saccharinate anion and a protonated ethylamine cation. Intermolecular N—H...O hydrogen bonds link these ions into a two-dimensional framework structure. The crystal packing is further stabilized by weak intermolecular C—H...O hydrogen bonds

scholarly journals (2,2′-Bipyridine-κ2 N,N′)(pyridine-2,6-dicarboxylato-κ2 N,O)palladium(II) monohydrate

IUCrData ◽  
2019 ◽  
Vol 4 (12) ◽  
Author(s):  
Kwang Ha
Keyword(s):  
Hydrogen Bonds ◽  
Water Molecule ◽  
Title Compound ◽  
Coordination Geometry ◽  
Intermolecular Hydrogen Bonds ◽  
Complex Molecules ◽  
Solvent Water Molecule ◽  
Solvent Water ◽  
Square Planar ◽  
Bipyridine Ligand

In the title compound, [Pd(C7H3NO4)(C10H8N2)]·H2O, the PdII cation is four-coordinated in a distorted square-planar coordination geometry defined by the two N atoms of the 2,2′-bipyridine ligand, one O atom and one N atom from the pyridine-2,6-dicarboxylate anion. The complex and solvent water molecule are linked by intermolecular hydrogen bonds. In the crystal, the complex molecules are stacked in columns along the a axis.

scholarly journals 2,2′-Bipyridin-1-ium hemioxalate oxalic acid monohydrate

IUCrData ◽  
2018 ◽  
Vol 3 (8) ◽  
Author(s):  
Błażej Dziuk ◽  
Anna Jezuita
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Oxalic Acid ◽  
Water Molecule ◽  
Title Compound ◽  
Water Molecules ◽  
Asymmetric Unit ◽  
Compound C ◽  
Oxalic Acids

The asymmetric unit of the title compound, C10H9N2 +·0.5C2O4 2−·C2H2O4·H2O, consists of a 2,2′-bipyridinium cation, half an oxalate dianion, one oxalic acid and one water molecule. One N atom in 2,2′-bipyridine is unprotonated, while the second is protonated and forms an N—H...O hydrogen bond. In the crystal, the anions are connected with surrounding acid molecules and water molecules by strong near-linear O—H...O hydrogen bonds. The water molecules are located between the anions and oxalic acids; their O atoms participate as donors and acceptors, respectively, in O—H...O hydrogen bonds, which form sheets arranged parallel to the ac plane.

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