Structure,solvatochromism, and solvation of trans-[CoIII(cyclam)(NCS)2](NCS) and the structure of [CoII(Me4cyclam) (NCS)]2[Co(NCS)4]MeOH |
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Authors: | Burgess John Fawcett John Haines Robert I Singh Kuldip Russell David R |
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Institution: | (1) Chemistry Department, University of Leicester, Leicester, LE1 7RH, UK |
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Abstract: | The structures of trans-CoIII(cyclam)(NCS)2](NCS) and of CoII(Me4cyclam)(NCS)]2Co(NCS)4]·MeOH have been established by X-ray diffraction methods. The solvatochromic behavior of the trans-Co(cyclam)(NCS)2]+ cation in several binary aqueous solvent mixtures is reported. Transfer chemical potentials for this complex from H2O into MeOH-H2O mixtures have been established from solubility measurements on its thiocyanate salt. The solvatochromic behavior of this cation is discussed in the context of other solvatochromic inorganic complexes; its transfer chemical potentials are discussed in relation to those of other cobalt(III) complexes. |
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