(CH3)4NHgBrI2 - a New Polar Organic-Inorganic Double Halide
(CH3)4NHgBrI2 exhibits at room temperature a polar columnar structure based on edge-sharing anion tetrahedra with a double anion occupancy. Its orthorhombic space group is Pb2//1m. An unusual multiple phase transition sequence revealed by differential scanning calorimetry, dilatometry and permittivity vs. temperature measurements leads to a non-polar high temperature phase with a trigonal mercury coordination and the monoclinic space group P2//1/n.
Arend, H Swiss Fed Inst Technol,Solid State Phys Lab,Ch-8093 Zurich,Switzerland Univ Lausanne,Inst Crystallog,Ch-1015 Lausanne,Switzerland; Pt408; Times Cited:5; Cited References Count:8
Record created on 2006-08-21, modified on 2016-08-08