Kennedy, A.R. and Mair, F.S. (2003) A magnesium-bis(diaryldiketiminate) complex. Acta Crystallographica Section C: Crystal Structure Communications, 59 (12). m549-m551. ISSN 0108-2701Full text not available in this repository. (Request a copy from the Strathclyde author)
The 1:1 of reaction of dibutylmagnesium with the ligand 2-[(2-isopropylphenyl)amino]-4-[(2-isopropylphenyl)imino]pent-2-ene gives only the 1:2 metal-ligand compound bis[N,N'-bis(2-isopropylphenyl)pentane-2,4-diiminato]magnesium(II), [Mg(C23H29N2)2], as an isolated solid. The coordination geometry about the Mg atom is distorted tetrahedral [N - Mg - N angles range from 90.73 (5) to 136.40 (6)°], with the metal lying out of the ligand plane. The ligands themselves have non-crystallographic Cs geometry. The structure is isotypic with the Zn analogue, and the small differences between these two structures provide evidence for a significant covalent contribution to bonds that are generally described as largely ionic.
|Keywords:||dibutylmagnesium, metal-ligand compound, magnesium, Mg atom, tetrahedral, isotypic, ionic, Chemistry, Biochemistry, Genetics and Molecular Biology(all)|
|Subjects:||Science > Chemistry|
|Department:||Faculty of Science > Pure and Applied Chemistry|
|Depositing user:||Catriona Mccallum|
|Date Deposited:||12 May 2006|
|Last modified:||29 Apr 2016 07:35|