Stabilization of [BiCl_6]~(3-) and [Bi_2Cl _(10)]~(4-) with various organic precursors as cations leading to inorganic-organic supramolecular adducts: Syntheses, crystal structures and properties of [C_5H_7N_2]_3[BiCl _6], [C_5H_7N_2][C_5H _8N_2]

摘要

Syntheses, crystal structures and properties of three ion pair compounds [C_5H_7N_2]_3[BiCl_6] (1), [C_5H_7N_2][C_5H_8N _2][BiCl_6] (2) and [C_(10)H_(10)N _2]_2[Bi_2Cl_(10)] (3) have been described. Compounds 1 and 2 crystallize in triclinic system (space group, P-1), whereas compound 3 crystallizes in monoclinic sysyem (space group, P2 1/c). In their crystal structures, supramolecular hydrogen bonding interactions between bismuth-chloro anion and organic cation play an important role in the stabilization of [BiCl_6]~(3-) and [Bi _2Cl_(10)]~(4-) anions in the title ion pair compounds. Compounds 1, 2 and 3 are characterized by routine spectral analyses and elemental analyses, besides crystal structure determinations. Compounds 1, 2 and 3 are additionally characterized by thermogravimetric analyses. Compound [C_5H_7N_2][C_5H_8N _2][BiCl_6] (2) exhibits emission spectrum at room temperature in the visible region.