[(OC)5Cr=BSi(SiMe3)3]: A Terminal Borylene Complex with an Electronically Unsaturated Boron Atom
摘要:
An extremely low-field shifted 11 B NMR signal at δ=204.3 and a very short Cr-B distance of 187.8 pm characterize the title compound [(OC)5 Cr=B-Si(SiMe3 )3 ], which is the first borylene complex in which the boron atom is both coordinatively and electronically unsaturated.