Artículos de revistas
Reaction of [Os-3(CO)(10)(MeCN)(2)] with 2,3-bis(2-pyridyl)pyrazine and pyrazyne. Synthesis, characterization and electrochemical behavior of 1 : 1 and 1 : 2 ligand : cluster complexes
Registro en:
Journal Of Organometallic Chemistry. Elsevier Science Sa, v. 559, n. 41671, n. 37, n. 42, 1998.
0022-328X
WOS:000074599400005
10.1016/S0022-328X(98)00401-X
Autor
de Souza, RM
Martins, F
Stein, E
Institución
Resumen
The diimine-bridged, bis-triosmium carbonyl complexes [{Os-3(CO)(10)(mu-H)}(2)(pyz)] 1b, [{Os-3(CO)(10)}(2)(dpp)] 2b, (pyz = pyrazine; dpp = 2,3-bis(2-pyridyl)pyrazine) and their corresponding 1:1 ligand:cluster complexes [Os-3(CO)(10)(mu-H)(pyz)], 1a, [Os-3(CO)(10)(dpp)], 2a, were synthesized by the reaction of [Os-3(CO)(10)(MeCN)(2)] with pyz and dpp ligands. All compounds were characterized by IR,H-1-NMR spectroscopy and elemental analysis. Electrochemistry was used to examine the redox properties of 1-2 and of complexes [Os-3(CO)(10)(mu-H)(py)], 3, for comparison purposes. The electrochemical behavior of the bridged bis-triosmium species 1b-2b provided strong evidence for the electronic interaction between the two metal centers. (C) 1998 Elsevier Science S.A. All rights reserved. 559 41671 37 42