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Formación de complejo oligonuclear con el Ligando Bis-Bidentado N',N', N''', N'''-Tetraetilo-N,N''- Piridina-2,6-Dicarbonilo-Bis(tiourea) en disolución

2008; Volume: 74; Issue: 3 Linguagem: Inglês

2309-8740

Lothar Beyer, F. Dietze, Uwe Schröder, Lutz Quas, M. N. Luis, Beatriz F. dos Santos, Bernd Schröder,

Porphyrin and Phthalocyanine Chemistry

With nickel(II), the potential ligand N',N',N''',N'''-tetraethyl-N,N''-pyridine-2,6dicarbonyl-bis(thiourea), H [tepytu] , H L, forms a neutral binuclear complex of the type 2 2 Ni L . The occurrence of a complex of this constitution was found in a 75%v/v 1,42 2 dioxane/water mixture. A geometry optimization in the gas phase was performed by ab-initio calculations at the B3LYP/SDD level of theory. It shows that the rigid pyridine-centered binuclear complex forms a central cavity in-between the pyridine, large enough to allow intermolecular interaction. * Institut fur Anorganische Chemie, Universitat Leipzig, Johannisallee 29, D-04103 Leipzig, Germany. e-mail: beyinorg@chemie.uni-leipzig.de ** Centro de Investigacao em Quimica, Departamento de Quimica, Faculdade de Ciencias, Universidade do Porto, Rua do Campo Alegre, 687, P-4169-007 Porto, Portugal e-mail: bschrode@fc.up.pt Rev Soc Quim Peru. 74 (3) 2008