An approach to creating novel anions: silylated triel compounds with -CH2- and -O- linkers, [InCl2{O(HO)Si(t-Bu)(2)}](2) and Li[B(CH2SiMe3)(4)]

作者：Scholz Stefan; Vitze Hannes; Bolte Michael^*; Lerner Hans Wolfram

来源：Acta Crystallographica Section C-Crystal Structure Communications, 2013, 69: 569-+.

DOI：10.1107/S0108270113009311

Bis[mu-di-tert-butyl(hydroxy)silanolato]bis[chloridoindium(III)], [In-2(C8H19O2Si)(2)Cl-4], (I), is a centrosymmetric two-centre indium complex featuring a system of three annulated four-membered rings; the structure is the first example of an In2O2 ring which is annulated with two Si-O units to form a ring system composed of three rings. The coordination environment of the In centres is a distorted trigonal bipyramid. The crystal packing of (I) is characterized by chains of molecules connected by O-H center dot center dot center dot Cl hydrogen bonds. The crystal of (I) was a nonmerohedral twin. There is no known example of an In2O2 ring in which the In atoms carry any two halogen ligands. The structure of tetrakis(tetrahydrofuran) lithium tetrakis[(trimethylsilyl) methyl] borate, [Li(C4H8O)(4)](C16H44BSi4), (II), is composed of discrete cations and anions. The coordination geometries of the Li and B centres is tetrahedral. The cations and anions lie in planes parallel to the ab plane. There are no short contacts between the cations and anions. Compound (II) is the first example of a B centre bonded to four -CH2Si units.

• 出版日期2013-6