Structural change in (C5H5NH)SbBr4 with temperature
Abstract
81 Br N.q.r. spectroscopy has revealed a drastic structural change in the (C5H5NH)SbBr4 crystal; above 253 K the SbBr4– anion has the trigonal bipyramid structure, whereas below 253K the axial bonds become asymmetric and the SbBr4– anion is more reasonably described as SbBr3·Br– at 77 K.