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SYNTHESIS AND SOME TRANSFORMATIONS OF COMPLEX NICKEL(II) SALTS OF BIS(3,1,2-DICARBONYLALLYL)NICKEL(III). PREPARATION OF 3-(2,2'-BIPYRIDYL)-closo-3,1,2-NICKELADICARBADODECABORANE
Maier, N. A.,Erdman, A. A.,Zubreichuk, Z. P.,Propkovich, V. P.,Ol'dekop, Yu. A.
, p. 297 - 302 (1985)
III>2NiII*4L compounds (2a,b), where Cb is ?-(3)-1,2-C2B9H11 and L is 2,2'-bipyridyl (2a) or pyridine (2b), have been prepared by the reaction of NiCl2 with III>Na (1) in the presence of the corresponding ligands L.The salt with bipyridyl (1a) forms the complex Na*2L (3).Complexes 2a and 3 decompose at 200-230 deg C to form 3-(2,2'-bbipyridyl)-closo-3,1,2-nickeladicarbadodecaborane (4).Compound 4 has also been prepared by thermal decompositin of bipyridyl complexes of bis-(1-o-carboranyl)nickel or the nickel salt of 1-o-carboranecarboxylic acid.In this case, the o-carboranic nucleus is transformed into a closo-nickelcarboranic one.
