Gabriela Vargas-Pineda
Universidad Autónoma del Estado de Morelos
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Main Group Metal Chemistry | 2015
Marcela López-Cardoso; Cristina Rodríguez-Narváez; Gabriela Vargas-Pineda; Perla Román-Bravo; Alan O. Ariza-Roldán; Patricia García y García; Raymundo Cea-Olivares
Abstract Six new diorganotin (IV) complexes, [Ph2Sn(Pr-ACDA)2] 1, [Bu2Sn(Pr-ACDA)2] 2, [Ph2Sn(Bz-ACDA)2] 3, [Bu2Sn(Bz-ACDA)2] 4, [Me2Sn(Bz-ACDA)2] 5, [t-Bu2Sn(Bz-ACDA)2] 6 are reported (where ACDA is the 2-amino-1-cyclopentene-1-carbodithioic anion). The diorganotin complexes were prepared from reactions between sodium N-propyl and N-benzyl-2-amino-1-cyclopentene-1-carbodithioate with R2SnCl2 (R=Ph, Bu, Me, tBu) in a 2:1 ratio. All complexes were characterized by elemental analysis, IR, multinuclear NMR (1H, 13C, and 119Sn), FAB+ mass spectrometry and in the case of 2, 3 and 5 by single-crystal X-ray diffraction. Both solution and solid state studies show that dithioacid ligands are coordinated to tin in an aniso-bidentate manner. In all complexes coordination takes place only through the carbodithioate moieties. 119Sn NMR data indicate pentacoordination of tin in solution. The tin coordination geometry, in all three structures is a highly distorted octahedral geometry, where tin is bonded to the four sulfur atoms of the two aniso-bidentate carbodithioate ligands in the equatorial plane and the organic substituents on tin atom in trans-positions. In addition, the crystal structures show the presence of N-H…S hydrogen bonding contacts.
Journal of Coordination Chemistry | 2011
Gabriela Vargas-Pineda; Marcela López-Cardoso; Patricia García y García; Perla Román-Bravo; Raymundo Cea-Olivares
Thirteen new stannacyclododecane dithiocarbamate complexes have been prepared by reacting 12-chloro-12-n-butyl-1,11-dioxa-4,8-dithia-12-stannacyclododecane (1) and 12-chloro-12-n-butyl-1,4,8,11-tetrathia-12-stannacyclododecane (2) with pyrrolidine-, morpholine-, thiomorpholine-, piperidine-, piperazinebis-, and 3-pyrroline-carbodithioates, respectively, as well as with diethyl-dithiocarbamate. All complexes were characterized by elemental analyses, IR, EI-MS, and NMR (1H, 13C, and 119Sn) studies. The spectroscopic data suggest the replacement of the chlorides by the corresponding dithiocarbamates with monodentate coordination, leading to six-coordinate tin atoms in all the cases.
Journal of Organometallic Chemistry | 2011
Hugo Tlahuext; Reyna Reyes-Martínez; Gabriela Vargas-Pineda; Marcela López-Cardoso; Herbert Höpfl
Polyhedron | 2016
Ámbar Yuricsi Castrejón-Antúnez; Miriam Mendoza-Mendoza; Diana Iris Olea-López; Felipe Medrano; Hugo Tlahuext; Jorge Guerrero-Álvarez; Gabriela Vargas-Pineda; Carolina Godoy-Alcántar
Main Group Chemistry | 2012
Patricia García y García; María del Carmen Pérez-Redondo; Perla Román-Bravo; Miguel-Angel Reyes-González; Irma Linzaga-Elizalde; Marcela López-Cardoso; Patricia Martínez-Salas; Gabriela Vargas-Pineda; Ave María Cotero-Villegas; Raymundo Cea-Olivares
Inorganic Chemistry Communications | 2012
Perla Román-Bravo; Marcela López-Cardoso; Patricia García y García; Gabriela Vargas-Pineda; Raymundo Cea-Olivares
Heteroatom Chemistry | 2004
Gabriela Vargas-Pineda; Marcela López-Cardoso; Patricia García y García; Raymundo Cea-Olivares
Journal of Molecular Structure | 2018
Hugo Tlahuext; Elena Rosas-Valdéz; Marcela López-Cardoso; Perla Román-Bravo; Gabriela Vargas-Pineda; Virginia Montiel-Palma; Ave María Cotero-Villegas; María del Carmen Pérez-Redondo; Raymundo Cea-Olivares
Inorganica Chimica Acta | 2017
Marcela López-Cardoso; Gabriela Vargas-Pineda; Perla Román-Bravo; María Elena Rosas-Valdéz; Alan O. Ariza-Roldán; Rodrigo Said Razo-Hernández; Keith H. Pannell; Raymundo Cea-Olivares
Journal of Molecular Structure | 2016
Marcela López-Cardoso; Gabriela Vargas-Pineda; Perla Román-Bravo; Cristina Rodríguez-Narváez; Elena Rosas-Valdéz; Raymundo Cea-Olivares
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María del Carmen Pérez-Redondo
Universidad Autónoma del Estado de Morelos
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