Synthesis and structural characterization of terminal (diisopropylamino)borylene complexes of group 8 metals

被引:4
|
作者
Vidovic, Dragoslav [1 ]
Pierce, Glesni A. [1 ]
Coombs, Natalie D. [1 ]
Kays, Deborah L. [2 ]
Thompson, Amber L. [1 ]
Stasch, Andreas [3 ]
Aldridge, Simon [1 ]
机构
[1] Univ Oxford, Inorgan Chem Lab, Oxford OX1 3QR, England
[2] Univ Nottingham, Sch Chem, Nottingham NG7 2RD, England
[3] Monash Univ, Sch Chem, Clayton, Vic 3800, Australia
基金
英国工程与自然科学研究理事会;
关键词
Boron; borylene; boryl; iron; ruthenium; halide abstraction; COORDINATION CHEMISTRY; HALIDE ABSTRACTION; REACTIVITY; ANALOG; BORON; CO;
D O I
10.3233/MGC-2010-0005
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The syntheses and first structural characterization of terminal (diisopropylamino)borylene complexes are reported. The B-11 NMR chemical shifts for these novel systems (delta(B) 93.8 and 90.2 for [Cp'Fe(CO)(2)((BNPr2)-Pr-i)][BAr4f], 3, and [CpRu(CO)(2)((BNPr2)-Pr-i)][BAr4f], 4, respectively) are ca. 40 ppm downfield of those measured for the boryl precursor complexes, consistent with observations for related trimethylsilyl and cyclohexylamino substituted compounds. Structurally, the linearity of the M - B - N fragment in each case and the marked shortening of the M - B bonds (cf. the single bonds found in boryl complexes CpFe(CO)(2)((BNPr2)-Pr-i)Cl, 1b, and CpRu(CO)(2)((BNPr2)-Pr-i)Cl, 2) reflect the fact that the M - B bond order in borylene systems 3 and 4 is between one and two.
引用
收藏
页码:57 / 65
页数:9
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