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.

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 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 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 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.

Scheelite (CaWO4)-type microphosphors: Facile synthesis, structural characterization and photoluminescence properties

2016 ◽  
Vol 30 (32n33) ◽  
pp. 1650400 ◽  
Author(s):  
Yuanyuan Han ◽  
Dan Wang ◽  
Danyang Liang ◽  
Shiqi Wang ◽  
Guoxin Lu ◽  
...  
Keyword(s):  
Luminescence Decay ◽  
Precipitation Method ◽  
Ammonium Bromide ◽  
Photoluminescence Properties ◽  
Facile Synthesis ◽  
Cetyltrimethyl Ammonium Bromide ◽  
Broad Emission ◽  
Transition Formula ◽  
Cetyltrimethyl Ammonium ◽  
Uv Excitation

Scheelite (CaWO4)-type microphosphors were synthesized by the precipitation method assisted with cetyltrimethyl ammonium bromide (CTAB). All compounds crystallized in the tetragonal structure with space group [Formula: see text] (No. 88). FE-SEM micrographs illustrate the spherical-like morphologies and rough surface. PL spectra indicate the broad emission peak maximum at 613 nm under UV excitation. Luminescence decay curves monitored by [Formula: see text] transition ([Formula: see text] nm) of Eu[Formula: see text] in doped CaWO4 are presented, the curves exhibit a single-exponential feature and the lifetime for doped CaWO4 is 0.61 ms.

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