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|標題:||Syntheses and characterizations of group 6 metal cyanotrihydroborate complexes||作者:||Liu, F.C.
|關鍵字:||cyanotrihydroborate;organohydroborate;hydroborate;crystal structure;hexacarbonyl;hydroborate complexes;structural characterization;metathetical;preparations;sodium tetrahydroborate;tertiary phosphines;crystal-structure;nabh3cn;co(ii);bis(diphenylphosphino)methane;protonation||Project:||Journal of Organometallic Chemistry||期刊/報告no：:||Journal of Organometallic Chemistry, Volume 689, Issue 3, Page(s) 544-551.||摘要:||
The anions, [M(CO)(6-n)(NCBH3)(n)](n-) (n = 2, M = Cr(1); n = 3, M = Cr(2), Mo(3), W(4)), were prepared either from the reactions of sodium cyanotrihydroborate with group 6 transition metal hexacarbonyls, M(CO)(6) (M = Cr, Mo, W), or through the reactions of M(CO)(3) (CH3CN)(3) (M = Cr, W) with sodium cyanotrihydroborate. The cyanotrihydroborate ligand bonds to the metal through a nitrogen atom, which was confirmed by the Infrared, proton and boron NMR spectroscopies. Crystal structures of the above complexes were determined by single crystal X-ray diffraction analyses. A cis configuration is found in 1. Molecular structures of 2, 3, and 4 are similar and a facial configuration is observed. (C) 2003 Elsevier B.V. All rights reserved.
|Appears in Collections:||化學系所|
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