Highly symmetrical chromium(II) bisdiketiminate complexes |
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Authors: | Saï da Latreche |
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Affiliation: | a Université Tébessa, 12000 Tébessa, Algeria b Université de Montréal, C. P. 6128 Succ. Centre-Ville, Montréal, QC, Canada H3C 3J7 |
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Abstract: | Reaction of the lithium salts of N,N′-dialkyl-2-amino-4-imino-pent-2-enes, nacnacRLi(THF) (R = CH2Ph, Cy, nPr, iBu or S-CH(Me)Ph), with half an equivalent of CrCl2(THF)x yielded the homoleptic complexes (nacnacR)2Cr. All complexes were characterized by X-ray diffraction studies and displayed a highly symmetric, square-planar coordination around the chromium center with strong boat-like distortions of the diketiminate ligands. Reaction of nacnacRLi(THF) (R = CH2Ph, Cy) with one equivalent of CrCl2(THF)x afforded the dimeric complexes {nacnacRCr(μ-Cl)}2. |
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Keywords: | Chromium(II) Crystal structure Diketiminate complexes |
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