D <sup> 10 </ Sup> Metal Halide And Bis (benzotriazole) Alkane Coordination Polymer Synthesis, Structure And Performance Research

In the work,the self-assemblies of 1,2-bis(benzotriazol)ethane(L1), 1,3-bis(benzotriazol)propane (L2), 1,4-bis(benzotriazol)butane (L3), 1,6-bis(benzotriazol)hexane (L4) flexible ligands with CuX or CdX2 (X=Cl-, Br- and I-) under solvo-thermal conditions produced 10 coordination polymers, namely,{[CdI2]2(L1)2} (1),{[CdBr2]3(L1)2}n (2), {[CdI2](L2)}n(3),{[CdBr2](L3)}n(4),{[CdBr2]2(L4)2}n(5),{[CdI2]4(L4)4}n(6),{[CdCl2]5(L1)2}n (7),{[CuCl]2(L4)}n(8),{(HETA)[(Cu6I7)(ETA)2]}n(9) and {K(Cu6Br7)(L4)}n(10). Their crystal structures have been determined by X-ray single-crystal diffraction.Complexes 1-7 are of Cd (Ⅱ) compounds, which crystallize in the monoclinic space group C2/c (1,2 and 7), P2(1)/c (3 and 4), P2(1)/n (5) and Cc (6), respectivelly. Complex 1 is of a 0-D binuclear structure; Complexes 2,3 and 4 all show 1-D chain structures; The rhomboid [Cd-Br-Cd-Br] binuclear unit and [Cd-L4-Cd-L4] binuclear subunit are linked alternately to form the 1-D chain structure for complex 5; Complex 6 is a 1-D ribbon structure with adjacent large ring subunits [Cd4(L4)4] connected by another independent L4 ligand; Complex 7 is a 2-D net structure constructed fromμ2-bridging L1 ligands and 1-D ribbon structures consists of vertex missing cubane-like [Cd3Cl4]subunits.Complexes 8-10 are of Cu (I) compounds, firstly generated using 1,6-bis(benzotriazol)hexane (L4) as the ligand. Complex 8 crystallizes in the tetragonal space group 14(1)/a, while complexes 9 and 10 crystallize in the monoclinic space group C2/c and P2(1)/m, respectively. Complex 8 builds up byμ4-bridging L4 ligands and 1-D [CuCl] inorganic chains and made a 3-D structure; Complexes 9 and 10 both are constucted from novel [Cu16X7]nn-(X=Cl,Br) inorganic anionic chain, compound 9 shows a supramolecular structure consisting of 1-D anionic organic-inorganic hybrid [(Cu6I7)(ETA)2]nn- chains and disordered protonated HETA organic cations, while compound 10 is constructed by (μ4-bridging L4 ligand and 2-D neutral inorganic [KCu6Br7] layer. Such layer consists 1-D anionic [Cu6Br7]nn-chains and heptacoordinated K atoms.Complexes 1-10 have been characterized by X-ray powder diffraction, Fourier-transform infrared spectroscopy, thermogravimetric analysis, UV-vis diffuse reflectance spectrum and photoluminescence measurements. What's more, weak interaction that exists in these complexes and the ligand conformation have also been studied.