Effect of trace water in chloroform on coordination mode of the tetraazamacrocyclic complex comprised of nickel(II) bromide and 7R(S),14S(R)-5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane.
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概要
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<I>Trans</I>-[NiBr<SUB>2</SUB>L](L= the titled macrocyclic ligand) dissolves in freshly purified chloroform containing a very small amount of water to give an equilibrium mixture between the low-spin four coordinate and the high-spin six coordinate complexes. High temperature favors the high-spin form. This is opposite to the well-known behavior of equilibria in H<SUB>2</SUB>O between low-spin four coordinate and high-spin six coordinate nickel(II) complexes with similar tetraaza macrocyclic ligands. Trace water in chloroform facilitates the formation of the low-spin species.
- 公益社団法人 日本化学会の論文
著者
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Mochizuki Katsura
Department Of Chemistry Faclty Of Science And Graduate School Of Integrated Science Yokohama City Un
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Ito Tasuku
Department of Applied Molecular Science, Institute for Molecular Science
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Suwabe Masaaki
Department of Chemistry, Faculty of Science, Tohoku University
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