Speaker: Prof. Dr. Huseyin Isci, Department of Chemistry, METU

Title: Electronic Absorption And MCD Spectra For Octacyanometallate Complexes [M(CN)8]n-, M = Mo(IV), Mo(V), W(IV), W(V)


Date: Thu 27 April, 2006
Time: 16:45
Place: Science Building, Room Z42

Abstract:

Electronic absorption and 8.0 Tesla magnetic circular dichroism (MCD) spectra
are measured for M(CN)84-, M =  Mo(IV) and W(IV), in aqueous solution and
M(CN)83-, M = Mo(V) and W(V), in acetonitrile solutions.  In addition some
absorption and MCD spectra are also measured for the M(CN)83- ions imbedded
in thin poly methyl methacrylate (PMMA) plastic films at temperatures from
295 - 10 K. The temperature dependence of the MCD spectra confirms the
presence of C terms.  The solution and PMMA spectra for the both Mo and W
complexes in either the IV or V oxidation states are remarkably similar to
each other for the same oxidation state and are interpreted within a D2d
structural framework for the isotropic environment.  


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