A paramagnetic, dimeric RhIIIRhII complex of the formula [Rh2(form)4(C≡CC5H4N)] (1) [form = N,N′-di-p-tolylformamidinate; C5H4N = pyridyl (py)] has been synthesized and used as starting material to prepare heterotrimetallic complexes of composition [Rh2(form)4(C≡Cpy){Re(CO)3(bipy)}][OS(=O)2CF3] (2) and [Rh2(form)4(C≡Cpy){Re(CO)3(tbu2bipy)}][OS(=O)2CF3] (3). These complexes have been examined by vibrational spectroscopy, EPR spectroscopy, thermogravimetry and cyclic voltammetry. They are heat-stable and can be handled in air without problems. The observed interactions between the Rh2 and the Re subunits, however, are weak, and a significant charge transfer does not seem to take place.

Zuo, J.L., FABRIZI DE BIANI, F., Santos, A.M., Kohler, K., Kuhn, F.E. (2003). 4-Ethynylpyridine as a bridging moiety in mixed Rh/Re complexes. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 449-452 [10.1002/ejic.200390063].

4-Ethynylpyridine as a bridging moiety in mixed Rh/Re complexes

FABRIZI DE BIANI, FABRIZIA;
2003-01-01

Abstract

A paramagnetic, dimeric RhIIIRhII complex of the formula [Rh2(form)4(C≡CC5H4N)] (1) [form = N,N′-di-p-tolylformamidinate; C5H4N = pyridyl (py)] has been synthesized and used as starting material to prepare heterotrimetallic complexes of composition [Rh2(form)4(C≡Cpy){Re(CO)3(bipy)}][OS(=O)2CF3] (2) and [Rh2(form)4(C≡Cpy){Re(CO)3(tbu2bipy)}][OS(=O)2CF3] (3). These complexes have been examined by vibrational spectroscopy, EPR spectroscopy, thermogravimetry and cyclic voltammetry. They are heat-stable and can be handled in air without problems. The observed interactions between the Rh2 and the Re subunits, however, are weak, and a significant charge transfer does not seem to take place.
Zuo, J.L., FABRIZI DE BIANI, F., Santos, A.M., Kohler, K., Kuhn, F.E. (2003). 4-Ethynylpyridine as a bridging moiety in mixed Rh/Re complexes. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 449-452 [10.1002/ejic.200390063].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/22170
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