Recognition of 1,2-diazines by a bidentate Lewis acid
Abstract
Dimeric ortho-phenyleneindium bromide 1 shows a higher affinity for 1,2-diazines than for 1,3- and 1,4-diazines; as shown by the X-ray crystal structure analysis of the host–guest complex 3 the observed selectivity results from subtle structural variation which can bring the indium p orbitals to converge.