scholarly journals Synthesis and Characterization of [2-CH3CH2C6H4NH3]6P6O18⋅4H2O

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Houda Marouani ◽  
Salem Slayyem Al-Deyab ◽  
Mohamed Rzaigui
Keyword(s):  
Hydrogen Bonds ◽  
Electrostatic Interactions ◽  
Three Dimensional ◽  
Spectroscopic Studies ◽  
Monoclinic System ◽  
Dimensional Network ◽  
Cell Dimensions ◽  
Unit Cell Dimensions ◽  
Ir Spectroscopic

Single crystals of [2-CH3CH2C6H4NH3]6P6O18⋅4H2O are synthesized in aqueous solution by the interaction of cyclohexaphosphoric acid and 2-ethylaniline. This compound crystallizes in the monoclinic system with P21/c space group the unit cell dimensions are: a=16.220(4) Å, b=10.220(5) Å, c=20.328(4) Å, β=113.24(3)∘, Z=2, and V=3096.5(18) Å3. The atomic arrangement can be described by layers formed by cyclohexaphosphate anions P6O186− and water molecules connected by hydrogen bonds O–H⋯O. These inorganic layers are developed around bc planes at x=1/2 and are interconnected by the H-bonds created by ammonium groups of organic cations. All the hydrogen bonds, the van der Waals contacts and electrostatic interactions between the different entities give rise to a three-dimensional network in the structure and add stability to this compound. The thermal behaviour and the IR spectroscopic studies of this new cyclohexaphosphate are discussed.

scholarly journals Synthesis and Characterization of Tetrakis(4-oxo-piperidinium ethylene acetal) Bis Sulfate Hexahydrate

2011 ◽  
Vol 8 (4) ◽  
pp. 1930-1936 ◽  
Author(s):  
H. Marouani ◽  
M. Rzaigui ◽  
S. S. Al-Deyab
Keyword(s):  
Hydrogen Bonds ◽  
Electrostatic Interactions ◽  
Three Dimensional ◽  
Spectroscopic Studies ◽  
Dimensional Network ◽  
Ir Spectroscopic ◽  
Inorganic Layers ◽  
Van Der Waals Contacts ◽  
Ethylene Acetal

Chemical preparation, x-ray characterization, IR spectroscopy and thermal analysis of a new sulfate (C7H12O2NH2)4(SO4)2.6H2O, are reported. The atomic arrangement can be described by layers formed by sulfate anions (SO-24) and water molecules connected by hydrogen bonds O-H…O. These inorganic layers are developed around ab planes at z = 0 and z = 1/2 and are interconnected by theH-bonds created by organic groups. All the hydrogen bonds, the Van der waals contacts and electrostatic interactions between the different entities give rise to a three-dimensional network in the structure and add stability to this compound. The thermal behaviour and the IR spectroscopic studies of this new sulfate are discussed.

scholarly journals Preparation and Characterization of 2-Phenoxyethyl(thiophen-2-yl)tellane (C4H3S)TeCH2CH2OC6H5

2006 ◽  
Vol 61 (1) ◽  
pp. 61-64
Author(s):  
Ludmila Vigo ◽  
Raija Oilunkaniemi ◽  
Risto S. Laitinen
Keyword(s):  
Three Dimensional ◽  
Monoclinic Crystal ◽  
X Ray ◽  
Compound C ◽  
Dimensional Network ◽  
Cell Dimensions ◽  
Weak Hydrogen Bonds ◽  
Intermolecular Contacts ◽  
Unit Cell Dimensions

The synthesis and structure of (C4H3S)TeCH2CH2OC6H5 (1) (C4H3S = thiophen-2-yl) are reported and compared to those of the analogous selenium compound (C4H3S)SeCH2CH2OC6H5 previously synthesized by our group. The compound was characterized by 1H, 13C{1H}-, and 125Te- NMR spectroscopy as well as by X-ray single crystal crystallography. 1 crystallizes in the monoclinic crystal system, space group P21, with Z = 2, and unit cell dimensions a = 10.618(2) Å , b = 5.357(1) Å , c = 10.684(2) Å , β = 96.57(3)°. The lattice is composed of discrete molecules that are joined together by weak hydrogen bonds into a three-dimensional network. The thiophen-2-yl ring is disordered and shows two alternative orientations with the site occupation factors of 0.70(1) and 0.30(1). All bond parameters are quite normal. The comparison of the lattices in 1 and in its selenium anologue shows that while the closest intermolecular contacts are similar, the packing of the molecules is different.

scholarly journals Synthesis and Crystal Structure of 3-3’-Diaminomethyldipropylammonium Hexachlorobismuthate (III)

2016 ◽  
Vol 8 (1) ◽  
pp. 1500-1507
Author(s):  
Yosra Baklouti ◽  
Abdelaziz Koumina ◽  
Mohamed Fliyou ◽  
Fatma Zouari
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Crystal Packing ◽  
Three Dimensional ◽  
Synthesis And Crystal Structure ◽  
Organic Layers ◽  
Triclinic System ◽  
Dimensional Network ◽  
Cell Dimensions ◽  
Unit Cell Dimensions

Synthesis and crystal structure of 3-3’-diamino-N-methyldipropylammonuim hexachlorobismuthate (III) are reported. The compound crystallizes in the triclinic system with space group P1. The unit cell dimensions are:             a = 7.5580(5), b =7.8710(6), c = 8.3709(7) Å with Z=1. The crystal is built up of separated [BiCl6]3- octahedral anions and 3-3’-diamino-N- methyldipropylammonium cations. The organic layers are arranged in sandwich between the anionic ones. The crystal packing is governed by means of the ionic   N–H···Cl hydrogen bonds, forming a three dimensional network.

scholarly journals Crystalline and Molecular Structure of Hexaaqua-1,3-diammoniumpropane Cobalt(II) Nitrate, Co(H2O)6[C3H12N2] (NO3)4

2010 ◽  
Vol 7 (3) ◽  
pp. 887-893
Author(s):  
M. L. Mrad ◽  
C. Ben Nasr ◽  
M. Rzaigui
Keyword(s):  
Direct Method ◽  
Three Dimensional ◽  
Chemical Preparation ◽  
Orthorhombic System ◽  
X Ray ◽  
R Factor ◽  
Dimensional Network ◽  
Cell Dimensions ◽  
Unit Cell Dimensions

Chemical preparation and x-ray characterization of a new compound hexaaqua-1,3-diammoniumpropane cobalt(II) nitrate, Co(H2O)6[C3H12N2] (NO3)4are reported. This mixed organo-mineral compound crystallizes in the orthorhombic system with Cmcm space group. The unit cell dimensions are: a = 10.795(7), b = 11.969(4), c = 14.685(5) Å, Z = 4 and V = 1897.5(12) Å3. The structure was solved using the direct method and refined to reliability R-factor of 0.036 using 2554 independent reflections. In this atomic arrangement the different species built a three-dimensional network.

scholarly journals Synthesis, crystal structure and spectroscopic characterization of a new organic bismuthate (III) [C9H28N4][Bi2Cl10].H2O

2014 ◽  
Vol 9 (2) ◽  
pp. 1911-1920 ◽  
Author(s):  
Z. Aloui ◽  
S. Abid ◽  
E. Jeanneau ◽  
M. Rzaigui ◽  
C. Ben Nasr
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Spectroscopic Characterization ◽  
Organic Layer ◽  
Monoclinic System ◽  
Cell Parameters ◽  
Dimensional Network ◽  
Ft Ir

The chemical preparation, crystal structure and spectroscopic characterization of [C9H28N4][Bi2Cl10].H2O have been reported. This compound crystallizes in the monoclinic system in space group P21/c and cell parameters a = 12.2385 (6), b = 17.3062 (7), c = 13.0772 (6) Å, β = 104.475 (5)°, Z = 4 and V = 2681.9 (2) Å3. Its crystal structure has been determined and refined to R = 0.049, using 5848 independent reflections. The atomic arrangement can be described by an alternation of organic and inorganic layers. The inorganic layer built up of [Bi2Cl10]4– bioctahedra arranged in sandwich between the organic layer. The organic groups are interconnected by the water molecules through N-H…O(W) hydrogen bonds to form infinite zig-zag chains spreading along the b-axis. These Chains are themselves interconnected by means of the N–H…Cl hydrogen bonds originating from [Bi2Cl10]4– anions, to form a three-dimensional network. Intermolecular Cl…Cl interactions between adjacent dimeric [Bi2Cl10]4– anions have been observed. The compound was also characterized by FT-IR and Raman spectrscopies.

scholarly journals X-ray Crystallographic Study of Ranaconitine

2011 ◽  
Vol 6 (11) ◽  
pp. 1934578X1100601
Author(s):  
Yang Li ◽  
Jun-Hui Zhou ◽  
Gui-Jun Han ◽  
Min-Juan Wang ◽  
Wen-Ji Sun ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Diffraction Analysis ◽  
Critical Role ◽  
X Ray Diffraction ◽  
Monoclinic System ◽  
X Ray ◽  
Crystallographic Study ◽  
Cell Dimensions ◽  
Unit Cell Dimensions

The crystal structure of natural diterpenoid alkaloid ranaconitine isolated from Aconitum sinomontanum Nakai has been determined by single crystal X-ray diffraction analysis. The crystal presents a monoclinic system, space group C2 with Z = 4, unit cell dimensions a = 30.972(19) Å, b = 7.688(5) Å, and c = 19.632(12) Å. Moreover, the intermolecular O–H···O hydrogen bonds and weak π-π interactions play a critical role in expanding the dimensionality.

scholarly journals Synthesis, Crystal structure of hepta (pyridinium) bis (hexachlorobismuthate (III)) nitrate [C5H6N]7(BiCl6)2(NO3)

2013 ◽  
Vol 9 (2) ◽  
pp. 1975-1987
Author(s):  
Ben Tahar Fayçal ◽  
Perez Olivier ◽  
Slaheddine Chaabouni
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Room Temperature ◽  
Three Dimensional ◽  
Unit Cell ◽  
Unit Cell Parameters ◽  
Monoclinic System ◽  
Cell Parameters ◽  
Dimensional Network

An hepta (pyridinium) bis (hexachlorobismuthate (III)) nitrate, (C5H6N)7(BiCl6)2(NO3) crystallizes at room temperature in the monoclinic system, space group P21/n, with the following unit-cell parameters: a = 9.555(1) Å, b = 16.847(1) Å, c = 32.522(1) Å, β = 94.37° , V = 5219.8 Å3 and four molecules per unit cell. Its crystal structure was determined and refined down to R1 = 0.0504, wR2 = 0.0667. The structure of the title compound, (C5H6N)7(BiCl6)2(NO3) consists of seven monoprotonated pyridinium (C5H6N)+ cations, two independent octahedron [BiCl6]3- and an isolated NO3- anion. These entities are linked together through N-H.....Cl and N-H.....O hydrogen bonds, originating from the (C5H6N)+ groups and the isolated anion of nitrate to forming a three dimensional network.

scholarly journals Synthesis and Physico-Chemical Characterization of a New Non-Centrosymmetric Organic Cation Iodate

2011 ◽  
Vol 7 (2) ◽  
pp. 1315-1323 ◽  
Author(s):  
A.C. Dhiab ◽  
W. Smirani Sta ◽  
M. Rzaigui
Keyword(s):  
Organic Cation ◽  
Three Dimensional ◽  
Chemical Characterization ◽  
Halogen Bonds ◽  
Monoclinic System ◽  
X Ray ◽  
Dimensional Network ◽  
Physico Chemical ◽  
Graph Set

The synthesis, crystal structure and physico-chemical characterization are presented for the piperazinium bis iodate dihydrate. An X-ray investigation has shown that this compound crystallizes in a non-centrosymmetric monoclinic system, space group Pc with the lattice parameters: a = 8.969 (2) Å, b = 6.027 (3)  Å, c = 11.958 (2)  Å; V = 612.7 (3)  Å3 and Z = 2. The structure was solved from 3546 independent reflexions with R1 = 0.053 and wR2 = 0.130. I…O halogen bonds [R22(4) graph-set motif] range between 2.770 (4) and 3.108 (1) Å and connect neighboring IO-3 anions with each other so as to create a bi-dimensional layer parallel to the (b,c) plane. These layers are interconnected via N−H…O and C−H…O, to the piperazinium dication to generate a three-dimensional network.

Ethylenediammonium tetraaquabis(sulfato)cobaltate(II)

2007 ◽  
Vol 63 (11) ◽  
pp. m2643-m2644
Author(s):  
Patricia Leyva-Bailen ◽  
Anthony V. Powell ◽  
Paz Vaqueiro
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Electrostatic Interactions ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Water Molecules ◽  
Constituent Species ◽  
Dimensional Network

In the title compound, [NH3(CH2)2NH3][Co(SO4)2(H2O)4], both the cation and anion are centrosymmetric. The CoII ion adopts a slightly distorted CoO6 octahedral geometry, arising from four water molecules and two monodentate SO4 2− anions. In addition to electrostatic interactions, the constituent species are linked through N—H...O and O—H...O hydrogen bonds, forming a three-dimensional network.

Calcium tartrate esahydrate, CaC4H4O6·6H2O: a structural and spectroscopic study

2015 ◽  
Vol 71 (1) ◽  
pp. 68-73 ◽  
Author(s):  
Gennaro Ventruti ◽  
Fernando Scordari ◽  
Fabio Bellatreccia ◽  
Giancarlo Della Ventura ◽  
Armida Sodo
Keyword(s):  
Hydrogen Bonds ◽  
Three Dimensional ◽  
X Ray Diffraction ◽  
Fourier Synthesis ◽  
Dimensional Network ◽  
Calcium Tartrate ◽  
Network Of Hydrogen Bonds ◽  
Ft Ir ◽  
Difference Fourier ◽  
Ir Spectroscopic

The crystal structure of calcium tartrate esahydrate, CaC4H4O6·6H2O, has been solved by the charge-flipping method from single-crystal X-ray diffraction data and refined toR= 0.021, based on 1700 unique observed diffractions. Salient crystallographic data are:a= 7.7390 (1),b= 12.8030 (2),c= 5.8290 (1) Å,Z= 2, and space groupP21212. During the refinement step it was possible to locate all H atoms by difference Fourier synthesis. The tartrate molecule has a (−)-gaucheconformation and is coordinated to two calcium ions to form infinite chains along theaaxis which alternate Ca polyhedra with tartrate molecules. The chains are interlinked by a three-dimensional network of hydrogen bonds from four water molecules surrounding the Ca ion, reinforced by hydrogen bonds from one interstitial water molecule. Micro-Raman and FT–IR spectroscopic data are provided.

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