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R2NH2C2O4SnC2O4SnBu3, (R2NH2)4(C2O4)3(SnR’3)2 (R = Cy, i-Bu; R’ = Me, Bu) AND SOME MIXED ORGANO- AND HALOTIN (IV) OXALATO NEW MOETIES CONTAINING COMPLEXES: SYNTHESIS, INFRARED, MOSSBAUER AND NMR STUDIES


YAYA SOW, LIBASSE DIOP *
Université Cheikh Anta Diop, Faculté des Sciences et Techniques, Département de Chimie, Laboratoire de Chimie Minérale et Analytique (LACHIMIA), Dakar, Sénégal
*Corresponding author: dlibasse@gmail.com

Issue:

SCSCC6, Volume XVI, No. 2

Section:

Volume XVI, No. 2 (2015)

Abstract:

On allowing (Cy2NH2)2C2O4∙2H2O to react with SnBu3Cl or SnMe3Cl, i-Bu2NH2HC2O4 with SnBu3Cl, (Bu2NH2)2C2O4 with SnMe3Cl, (i-Bu2NH2)2C2O4 with SnPh2Cl2, a mixture of i-Bu2NH2)2C2O4 and (Me4N)2C2O4 with SnPh2Cl2, (Pr2NH2)2C2O4 with SnPh3Cl, the oxalato derivatives and complexes Cy2NH2C2O4SnBu3.3H2O∙1/4Cy2NH2Cl, i-Bu2NH2C2O4SnBu3∙1/2(i-Bu2NH2)2C2O4,y2NH2C2O4SnMe3∙1/2(Cy2NH2)2C2O4, Sn(C2O4)2∙[C2O4(SnMe3∙H2O)2]∙2EtOH∙1/4[(Bu2NH2)2C2O4],(i-Bu2NH2)2 C2O4∙ 2SnPh2Cl2∙SnCl4∙4(i-Bu2NH2OH)∙2(i-Bu2NH2Cl), 2[SnPh2Cl4(i-Bu2NH2)2]∙ SnCl2C2O4∙4i-Bu2NH2Cl and 2[Pr2NH2C2O4SnPh3]∙(Pr2NH2)2C2O4∙SnCl4∙ 2Pr2NH2Cl were obtained. Double chain, two metallic components and a dimeric structures are suggested with trans coordinated SnMe3 residues, these chains being connected through R2NH2+ (R = Cy, i-Bu) only or by (R2NH2)2C2O4 bridges. The oxalate behaves as a monochelating, a bridging, an only hydrogen bonding involved or monodentate and H bond involved ligand. The environments around the tin (IV) centres are cis or trans trigonal bipyramidal, tetrahedral or octahedral. Supramolecular architectures may be obtained when extra hydrogen bonds are possible.

Keywords:

cis or trans trigonal bipyramidal, double chain structure, mono- or bichelating, mono- or bidentate, only hydrogen bonding involved oxalates, tetrahedral or octahedral environments, supramolecular architectures, trans coordinated SnR’3 residues (R’= Me, Bu).

Code [ID]:

CSCC6201502V02S01A0002 [0004231]

Full paper:

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