Complex Formation in the System Bis [2-(trimethylammonio) ethyl] Succinate Diodide-Iodine in Solutions and in Crystal

摘要

The complex formation in the system bis [2-(trimethylammonio) ethyl] succinate diodide-iodine insolves no more than two iodine molecules. The crystal structure of the salt [(CH_3)_3N(CH_2)_2OCOCH_2]_2(I_3)_2 is formed by layers of inorganic anions (I_3~-) and organic dications (centrosymmetric dications {[(CH_3)_3}N·(CH_2)_2OCOCH_2]~+}_2), evently alternating along the a axis. The crystal structure of the salt [(CH_3)_3N(CH_2)_2·OCOCH_2]_2(I_3)_2(I_2)_(0.5) is formed by organic and inorganic layers evently alternating along the [011] diagonal, with a centrosymmetric iodine molecule.