Mixed-ligand iron(III) dithiocarbamates. Calculation of ligand field parameters in electron spin crossover d5 systems by combination of spectral and magnetic data
✍ Scribed by C.A. Tsipis; C.C. Hadjikostas; G.E. Manoussakis
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 883 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0020-1693
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✦ Synopsis
New mixed-&and iron(III) dithiocarbamate complexes of the general formula Fe(R2dtc)2(R;dtc) have been prepared and characterized. These complexes contain two different dithiocarbamate ligands with different ligand field strengths. Magnetic measurements show an electron spin crossover equilibrium that depends on the nature of the two dithiocarbamate ligands. Values of the ligand field parameters A, B and 035 are given and were calculated from a combination of the spectral and magnetic properties of the complexes. These values seem more reasonable than those previously reported, which were calculated on the basis of crystal field bands. Assignments for the charge transfer bands in the complexes have also been made.