Two Novel Zinc Compounds with in situ Formation of Dimethylamine Ligand

The investigation of the supramolecular interactions between the zinc chloride salts and the crown ether in tetrahydrofuran (THF) with the diffusion of in situ formed DMA (DMA = dimethylamine)ligand leads to two novel zinc-DMA compounds,[(H3O)·(18C-6)][ZnCl3(DMA)] 1 and [(HDMA)·(18C-6)][ZnCl3(DMA)]2 (18C-6= 18-crown-6),whose emissions fall into the blue-emission field. Crystal data for compound 1: monoclinic, space group P21/c, a = 8.753(1), b = 14.538(2), c = 19.969(3) A, β = 110.121 (7)°, V = 2386.2(5) A3, T = 293(2) K, Z = 4, Mr = 500.14, Dc= 1.392 g/cm3, μ = 1.395 mm-1, F(000) = 1048, S = 1.006, R = 0.0611 and wR = 0.1755 for 3676 observed reflections with Ⅰ> 2σ(Ⅰ) and 235 parameters. For 2: triclinic, space group P1, a = 9.2672(4), b = 11.8778(2), c = 13.3846(1) A, α = 67.09(1), β = 75.54(2), γ = 81.32(2)°, V = 1311.74(6) A3, T= 293(2) K, Z= 2, Mr= 527.21, Dc = 1.335 g/cm3, μ = 1.271 mm-1, F(000) = 556, S = 1.006, R = 0.0393 and wR = 0. 1034 for 3839 observed reflections with Ⅰ>2σ(Ⅰ).