Organometallic Tantalum Tris(methimazolyl)borato Complexes: [Ta(η<sup>2</sup>-RC⋮CR)Cl<sub>2</sub>{HB(mt)<sub>3</sub>}] (R = Ph, Et; mt = methimazolyl)
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The reactions of Na[HB(mt)3] (mt = methimazolyl) with [Ta(η2-RC⋮CR)Cl3(dme)] (R = Ph, Et) provide the structurally characterized complexes [Ta(η2-RC⋮CR)Cl2{HB(mt)3}], the first examples of organometallic tris(methimazolyl)borato derivatives of group 5. The intrinsic chirality of the HB(mt)3 ligand is expressed in a skewing of the alkyne orientation.
创建时间：
2007-08-27
