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在水热条件下,利用富含共轭环的苯并吡嗪配体2,3-二苯基-苯并吡嗪(L),本文合成了3个新的Lindqvist型多酸基化合物:[Cu_2~IL_3(Mo_6O_(19))](1)、[Cu_2~IL_2(C_(16)H_(36)N)2(Mo_6O_(19))2](2)和[Cu_4~IL_4Cl_2(Mo_6O_(19))](3)(C_(16)H_(36)N=四丁基铵).利用红外光谱、元素分析和X射线单晶衍射分析对3个化合物进行了表征.化合物1中,Cu~+离子作为连接体连接两个L分子构成[CuL]_n~(n+)金属-有机链,并通过Mo_6阴离子构成1D链.这些1D链共用Mo_6阴离子构成网格状2D层.化合物2中仍存在[CuL]_n~(n+)链,Mo_6阴离子提供一个端氧原子通过共价键作用,悬挂于金属-有机链的上下两端.化合物3中存在两种功能的L配体(a、b类型):a型配体和Cl桥通过Cu~I离子相连,构筑成金属-有机链;b型配体和Mo_6阴离子悬挂在链的两侧.此外,本文还研究了这3个化合物的电化学和光催化性质.
Under hydrothermal conditions, three new Lindqvist-type polyacid compounds were synthesized by using benzopyrazine ligand 2,3-diphenyl-benzopyrazine (L) Cu_2 ~ IL_3 (Mo_6O_ (19))] (1), [Cu_2 ~ IL_2 (C_ (16) H_ (36) N) 2 (Mo_6O_ (19)) 2] and [Cu_4 ~ IL_4Cl_2 (Mo_6O_ ) (3) (C_ (16) H_ (36) N = tetrabutylammonium) Three compounds were characterized by FTIR, elemental analysis and X-ray single crystal diffraction analysis.In compound 1, + Ions as a linker to connect two L molecules to form a [CuL] _n ~ (n +) metal-organic chain and form a 1D chain through Mo_6 anions. These 1D chains share a Mo_6 anion to form a grid- The Mo 6 anions provide a terminal oxygen atom which is covalently attached to the upper and lower ends of the metal-organic chain. There are two functional L ligands (type a, b) ): The a-type ligand and Cl bridge are linked by Cu ~ I ions to form a metal-organic chain, the b-type ligand and Mo_6 anion are suspended on both sides of the chain.In addition, the electrochemistry of these three compounds And photocatalytic properties.