SYNTHESIS AND STRUCTURE OF [SB(((PRN)-N-I)(2)CNHPRI)(((PRN)-N-I)(2)CNPRI)] - A DISTORTED TRIGONAL-BIPYRAMIDAL ANTIMONY(III) COMPLEX WITH A HELICAL HYDROGEN-BOND NETWORK
Pj. Bailey et al., SYNTHESIS AND STRUCTURE OF [SB(((PRN)-N-I)(2)CNHPRI)(((PRN)-N-I)(2)CNPRI)] - A DISTORTED TRIGONAL-BIPYRAMIDAL ANTIMONY(III) COMPLEX WITH A HELICAL HYDROGEN-BOND NETWORK, Chemical communications, (13), 1997, pp. 1161-1162
1,2,3-Triisopropylguanidine [((PrNH)-N-i)(2)C=NPri], reacts with antim
ony tris(dimethylamide) [Sb(NMe2)(3)] to provide [Sb(((PrN)-N-i)(2)CNH
Pri]{((PrN)-N-i)(2)CNPri}] 1, a heavily distorted trigonal-bipyramidal
complex in which the Sb is chelated by a [C(NPri)(3)](2-) dianion and
a [((PrN)-N-i)(2)CNHPri](-) monoanion; in the solid state the complex
es form helices by N-H ... N hydrogen bonding of the single proton.