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采用新的方法合成了1-亚甲基苯并咪唑-1,4,7-三氮环壬烷配体,利用该配体合成了一个新的铜配合物[Cu(C_(14)H_(21)N_5)Br]_2·[CuBr_4]([Cu(C_(14)H_(21)N_5)Br]~+·[CuBr_4]~(2-)·[Cu(C_(14)H_(21)N_5)Br]~+),并测定了它的晶体结构,结果表明:该配合物的晶体属于单斜晶系的C2/c空间群,晶胞参数a=1.96209(15)nm,b=0.82319(5)nm,c=2.39249(15)nm,a= 90.00°,β=102.996(2)°,γ=90.00°,V=3.7653(4)nm~3,Z=4,μ(Mo Ka)=8.083 mm~(-1),D_c=2.097 Mg/m~3,F(000)=2308.R=0.0417,wR=0.0945,GOF=0.933.该配合物由两个1-亚甲基苯并咪唑-1,4,7-三氮环壬烷一溴合铜配阳离子和一个四溴合铜配阴离子组成.在两个配阳离子中,每个Cu(Ⅱ)离子与五个配位原子配位(四个氮原子和一个溴阴离子),位于一个变形四方锥的中心.在配阴离子中,Cu(Ⅱ)离子与四个溴阴离子配位,位于一个稍变形四面体的中心.
A new method was used to synthesize 1-methylenebenzimidazole-1,4,7-triazacyclononane ligand. A new copper complex [Cu (C_ (14) H_ ( (Cu_ (C_ (14) H_ (21) N_5) Br] ~ + [CuBr_4] ~ (2-) [Cu The results show that the crystal of the complex belongs to the monoclinic C2 / c space group with unit cell parameters of a = 1.96209 (15) nm and b = 0.82319 (5) nm, c = 2.39249 (15) nm, a = 90.00 °, β = 102.996 (2) °, γ = 90.00 °, V = 3.7653 = 8.083 mm -1, D c = 2.097 Mg / m 3, F (000) = 2308.R = 0.0417, wR = 0.0945, GOF = 0.933.The complex consisted of two 1-methylenebenzo Imidazole-1,4,7-triazacyclononane copper bromide with a cation and a copper bromide with anions. In two with cations, each Cu (Ⅱ) ions and five coordination atoms with (Four nitrogen atoms and one bromine anion) are located in the center of a deformed tetragon. In the anions, Cu (II) ions coordinate with four bromide anions and are located in the center of a slightly deformed tetrahedron.