Artículos de revistas
Investigação espectroscópica dos carbonilos heterobimetálicos cis-[Fe(CO)4(HgX)2], X = Cl, Br,I
Fecha
1999-12-01Registro en:
Química Nova. Sociedade Brasileira de Química, v. 22, n. 6, p. 787-789, 1999.
0100-4042
10.1590/S0100-40421999000600003
S0100-40421999000600003
S0100-40421999000600003.pdf
3300223970814448
8980849254118153
Autor
Universidade Federal do Pará (UFPA)
Universidade Estadual Paulista (Unesp)
Institución
Resumen
The series of compounds cis-[Fe(CO)4(HgX)2], X=Cl,Br,I shows an octahedral geometry around the iron atom with the two HgX groups cis to each other. In this paper the assignment for the carbonyl stretching modes and the calculation of their force constants were performed on the basis of the Cotton-Krainhanzel model. Taking into account all the data from the IR, 199Hg NMR and UV-vis spectra it is possible to verify the influence of X on the electronic densities at the metallic centers.