Molecular structures and vibrational frequencies for [PdX2(tdmPz)] (X = Cl−, SCN−): A DFT study

Autor: Antonio Eduardo Mauro, Fillipe V. Rocha, Rogério Toshiaki Kondo, José Ciríaco Pinheiro, O. Treu-Filho, Vegner Hizau dos Santos Utuni, Adelino Vieira de Godoy Netto
Rok vydání: 2009
Předmět:
Zdroj: Journal of Molecular Structure. 921:239-243
ISSN: 0022-2860
DOI: 10.1016/j.molstruc.2008.12.066
Popis: Theoretical molecular structures of the complexes [PdCl 2 (tdmPz)] ( 1 ) and [Pd(SCN) 2 (tdmPz)] ( 2 ) (tdmPz = 1-thiocarbamoyl-3,5-dimethylpyrazole) were investigated using B3LYP/DFT method. The new complexes were prepared and characterized by elemental analysis and IR spectroscopy. The calculated bond distances and angles indicated a square planar coordination polyhedron around the palladium center for ( 1 ) whereas complex ( 2 ) exhibited a slightly distortion in its square planar coordination environment. The theoretical infrared spectra of C 1 symmetry (electronic state 1 A) of the compounds are in agreement with the experimental data. The molecular orbital description HOMO and LUMO for compounds (1) and (2) were also described in this work.
Databáze: OpenAIRE