Solvatochromism and piezochromism of metal→ligand chargetransfer bands of ternary diimine complexes of tungsten(0), molybdenum(0), and iron(II) |
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| Authors: | Razak bin Ali Pradyot Banerjee John Burgess Ann E Smith |
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| Institution: | (1) Department of Chemistry, University of Leicester, LE1 7RH Leicester, UK;(2) Present address: Chemistry Department, University of Technology, Gurney Road, Kuala Lumpur, Malaysia;(3) Present address: Department of Inorganic Chemistry, Indian Association for the Cultivation of Science, 700 032 Jadavpur, Calcutta, India;(4) Present address: Food Science Division, Ministry of Agriculture, Fisheries and Food, Horseferry Road, SWIP 2AE London |
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| Abstract: | Summary The solvatochromic behaviour of W(CO)4(LL), LL=a diazabutadiene or a pyridine Schiff base, and of Mo(CO)4 (butane-2,3-dionedihydrazone) is described. Pressure effects on the charge-transfer spectra of these compounds, the Mo(CO)4(fz)]2– anion {fz=ferrozine; 3-(2-pyridyl)-5, 6-bis-(4-sulphonatophenyl)-1,2,4-triazine}, and Fe(bipy)2(CN)2 are reported. Solvent sensitivities are discussed in terms of the nature of the ligands and of the central metal atom, and the idea of a correlation between these solvent sensitivities and piezochromic behaviour developed for these and related ternary irondiimine-cyanide species.Author to whom all correspondence should be directed. |
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