scholarly journals NEW TRANSITION METAL OXALATO COMPLEXES WITH DABCOH22+ AS ADVERSE CATION: SYNTHESIS AND INFRARED STUDY

2018 ◽  
Vol 23 (3) ◽  
Author(s):  
MAMADOU NDIAYE ◽  
ABDOULAYE SAMB ◽  
LIBASSE DIOP
Keyword(s):  
Transition Metal ◽  
Hydrogen Bonds ◽  
General Formula ◽  
Infinite Chain ◽  
Infrared Study ◽  
Monomeric Species ◽  
Dimeric Structure ◽  
Species Being ◽  
Oxalato Complexes

<p>On allowing DABCOH<sub>2</sub>(HC<sub>2</sub>O<sub>4</sub>)<sub>2</sub> to react with transition metal dihalides in ethanol, a new series of complexes of general formula M(oxalate)<sub>2</sub> DABCOH<sub>2</sub><sup>2+</sup>. nDABCOH<sub>2</sub><sup>2+</sup>.2X<sup>-</sup> (n=1/2;1) have been obtained. When (n=1) a dimeric structure is suggested, the two monomeric species  being hold together by biprotonated DABCO through N-H…O hydrogen bonds. In the case of the complex M(oxalate)<sub>2</sub>DABCOH<sub>2</sub><sup>2+ </sup>.1/2 DABCOH<sub>2</sub><sup>2+</sup>.2X<sup>- </sup>-M = Ni, Cu- the structure is an infinite chain. The environment around the metallic centers is octahedral or square pyramidal. The oxalate behaves as a monochelating and hydrogen bonds involved ligand or is only concerned by hydrogen bonds.</p>

scholarly journals NEW TRANSITION METAL OXALATO COMPLEXES WITH DABCOH22+ AS ADVERSE CATION: SYNTHESIS AND INFRARED STUDY

2017 ◽  
Vol 23 (3) ◽  
pp. 26-31
Author(s):  
MAMADOU NDIAYE ◽  
ABDOULAYE SAMB ◽  
LIBASSE DIOP
Keyword(s):  
Transition Metal ◽  
Hydrogen Bonds ◽  
General Formula ◽  
Infinite Chain ◽  
Infrared Study ◽  
Monomeric Species ◽  
Dimeric Structure ◽  
Species Being ◽  
Oxalato Complexes

On allowing DABCOH2(HC2O4)2 to react with transition metal dihalides in ethanol, a new series of complexes of general formula M(oxalate)2 DABCOH22+. nDABCOH22+.2X- (n=1/2;1) have been obtained. When (n=1) a dimeric structure is suggested, the two monomeric species being hold together by biprotonated DABCO through N-H…O hydrogen bonds. In the case of the complex M(oxalate)2DABCOH22+ .1/2 DABCOH22+.2X- -M = Ni, Cu- the structure is an infinite chain. The environment around the metallic centers is octahedral or square pyramidal. The oxalate behaves as a monochelating and hydrogen bonds involved ligand or is only concerned by hydrogen bonds.

scholarly journals NEW TETRANUCLEAR AND MONONUCLEAR OXALATO ORGANOTIN (IV) COMPLEXES WITH MONOCYCLOHEXYLAMMONIUM AS ADVERSE CATION: SYNTHESIS AND INFRARED STUDY

2018 ◽  
Vol 23 (4) ◽  
Author(s):  
MODOU SARR ◽  
AMINATA DIASSE-SARR ◽  
LIBASSE DIOP
Keyword(s):  
Hydrogen Bonds ◽  
Infinite Chain ◽  
Intermolecular Hydrogen Bonds ◽  
Infrared Study ◽  
Supramolecular Architectures ◽  
Trigonal Bipyramidal

Eight new adducts and derivatives have been synthesized and studied by infrared. Discrete, layered or infinite chain structures are suggested with an oxalate behaving as a monodentate, bidentate, monochelating or bichelating ligand, the environment around the tin centres being tetrahedral, cis trigonal bipyramidal or octahedral. In all the studied compounds, supramolecular architectures may be obtained when intermolecular hydrogen bonds are considered.

scholarly journals NITRATO ADDUCTS AND DERIVATIVES: SYNTHESIS AND INFRARED STUDY

2018 ◽  
Vol 23 (1) ◽  
Author(s):  
MOUHAMADOU BIRAME DIOP ◽  
LIBASSE DIOP
Keyword(s):  
Infrared Spectroscopy ◽  
Hydrogen Bonds ◽  
Infinite Chain ◽  
Monodentate Ligand ◽  
Infrared Study ◽  
Supramolecular Architectures ◽  
Trigonal Bipyramidal ◽  
Chain Type

<p>Five new nitrato adducts and derivatives have been synthesized and studied by infrared spectroscopy. The suggested structures are discrete or of infinite chain type, the nitrate behaving as a bidentate or a monodentate ligand, the environment around the tin (IV) centres being octahedral or trigonal bipyramidal. When extra hydrogen bonds are considered supramolecular architectures may be obtained.</p>

scholarly journals NITRATO ADDUCTS AND DERIVATIVES: SYNTHESIS AND INFRARED STUDY

2017 ◽  
Vol 23 (1) ◽  
pp. 7-11
Author(s):  
MOUHAMADOU BIRAME DIOP ◽  
LIBASSE DIOP
Keyword(s):  
Infrared Spectroscopy ◽  
Hydrogen Bonds ◽  
Infinite Chain ◽  
Monodentate Ligand ◽  
Infrared Study ◽  
Supramolecular Architectures ◽  
Trigonal Bipyramidal ◽  
Chain Type

Five new nitrato adducts and derivatives have been synthesized and studied by infrared spectroscopy. The suggested structures are discrete or of infinite chain type, the nitrate behaving as a bidentate or a monodentate ligand, the environment around the tin (IV) centres being octahedral or trigonal bipyramidal. When extra hydrogen bonds are considered supramolecular architectures may be obtained.

scholarly journals NEW TETRANUCLEAR AND MONONUCLEAR OXALATO ORGANOTIN (IV) COMPLEXES WITH MONOCYCLOHEXYLAMMONIUM AS ADVERSE CATION: SYNTHESIS AND INFRARED STUDY

2017 ◽  
Vol 23 (4) ◽  
pp. 25-31
Author(s):  
MODOU SARR ◽  
AMINATA DIASSE-SARR ◽  
LIBASSE DIOP
Keyword(s):  
Hydrogen Bonds ◽  
Infinite Chain ◽  
Intermolecular Hydrogen Bonds ◽  
Infrared Study ◽  
Supramolecular Architectures ◽  
Trigonal Bipyramidal

Eight new adducts and derivatives have been synthesized and studied by infrared. Discrete, layered or infinite chain structures are suggested with an oxalate behaving as a monodentate, bidentate, monochelating or bichelating ligand, the environment around the tin centres being tetrahedral, cis trigonal bipyramidal or octahedral. In all the studied compounds, supramolecular architectures may be obtained when intermolecular hydrogen bonds are considered.

scholarly journals SYNTHESIS AND INFRARED STUDY OF SOME PHENYLPHOSPHONATE, DIPHENYLPHOSPHINATE AND ACETATOPHOSPHONATE NEW ORGANOTIN (IV) DERIVATIVES AND ADDUCTS

2020 ◽  
Vol 26 (3) ◽  
pp. 218-223
Author(s):  
MODOU SARR ◽  
AMINATA DIASSE-SARR ◽  
LIBASSE DIOP
Keyword(s):  
Hydrogen Bonds ◽  
Bidentate Ligand ◽  
Infinite Chain ◽  
Infrared Study ◽  
Supramolecular Architectures ◽  
Elemental Analyses

Three organotin (IV) derivatives PhPO3HSnBu2Cl, SnBu2Ph2PO2Cl×3/2H2O, Sn(PhPO3)Cl2×2H2O obtained on allowing PhPO3H2 or propylammonium PhPO3H to react with SnBu2Cl2, SnCl2×2H2O and two adducts [(C6H5CH2)2NH2]3O2C(CH2)2PO3×3SnPh3Cl, [CyNH3(HO2POCH2-N(CH2CO2H)2]2×3SnCl4.2H2O×NH4Cl obtained on allowing (C6H5CH2)NH2)3O2C(CH2)2PO3 or [CyNH3(HO2POCH2-N(CH2 CO2H)2]2 and SnPh3Cl or SnCl2×2H2O to react in ethanolic media have been characterized by elemental analyses, infrared and Mossbauer techniques. The suggested structures, while considering the anionic counterpart, are discrete, dimeric, double and triple metallic components or of infinite chain types, the anion behaving as a monochelating, a bichelating or a bidentate ligand. In OH containing structures, when extra hydrogen bonds are considered, supramolecular architectures may be obtained.

scholarly journals INTERACTIONS BETWEEN CETYLTRIMETHYLAMMONIUM OR TETRAMETYLAMMMONIUM BROMIDE AND MCl2 OR MCl5 (M = Hg, Cu, Zn, Co, Ni, Cd and Nb) IN MONONUCLEAR COMPLEXES: SYNTHESIS AND INFRARED STUDY

2020 ◽  
Vol 26 (3) ◽  
pp. 69-74
Author(s):  
DAME SEYE ◽  
ASSANE TOURE ◽  
CHEIKH ABDOUL KHADIR DIOP ◽  
LIBASSE DIOP
Keyword(s):  
Hydrogen Bonds ◽  
Infinite Chain ◽  
Ammonium Bromide ◽  
Intermolecular Hydrogen Bonds ◽  
Cetyltrimethyl Ammonium Bromide ◽  
Infrared Study ◽  
Supramolecular Architectures ◽  
Mononuclear Complexes ◽  
Cetyltrimethyl Ammonium

On allowing cetyltrimethyl ammonium bromide (C19H42NBr) and HgCl2, CuCl2.2H2O, CoCl2.6H2O, ZnCl2, NiCl2.6H2O or NbCl5 in specific ratio in methanol, new mononuclear have been obtained and studied by infrared. The suggested structures are discrete, of infinite chain with octahedral or tetrahedral environments around the metallic centres. The MX2 behaves as discrete chains. For most of the structures, when intermolecular hydrogen bonds are considered, supramolecular architectures may be obtained.

C−H- - -O Hydrogen Bonds in β-Sheetlike Networks:  Combined X-ray Crystallography and High-Pressure Infrared Study

2003 ◽  
Vol 125 (40) ◽  
pp. 12358-12364 ◽  
Author(s):  
Kwang Ming Lee ◽  
Hai-Chou Chang ◽  
Jyh-Chiang Jiang ◽  
Jack C. C. Chen ◽  
Hsiang-En Kao ◽  
...  
Keyword(s):  
High Pressure ◽  
Hydrogen Bonds ◽  
Infrared Study ◽  
X Ray ◽  
X Ray Crystallography

Structural and spectroscopic studies of transition metal nitrite complexes. VIII. Crystal structures and spectra of three pentanuclear species with stoichiometry [Ni5(N-substituted ethane-1,2-diamine)4(OH)2(NO2)8]

1981 ◽  
Vol 34 (10) ◽  
pp. 2139 ◽  
Author(s):  
AJ Finney ◽  
MA Hitchman ◽  
CL Raston ◽  
GL Rowbottom ◽  
AH White
Keyword(s):  
Transition Metal ◽  
Crystal Structures ◽  
General Formula ◽  
Infrared Spectra ◽  
Spectroscopic Studies ◽  
Molecular Structures ◽  
Structural Variations ◽  
Crystal And Molecular Structures

The preparation of a series of novel compounds of general formula [Ni5L4(NO2)8(OH)2] formed by ethane-1,2-diamine or one of five N-substituted ethane-1,2-diamines (L) is described. The crystal and molecular structures of the ethane-1,2-diamine, N,N'-diethylethane-1,2-diamine and N,N-dimethylethane-1,2-diamine complexes are reported. Each compound contains a planar, pentameric arrangement of nickel(II) ions, linked by bridging hydroxide and nitrite ligands. The details of the nitrite bridges differ among the complexes, causing differences in their electronic and infrared spectra. The structural variations are probably caused by the differing steric requirements of the amine substituents.

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