在混合溶剂热条件下,以4-[(羧甲基)硫代]-苯甲酸(CMTB)为配体合成了[Pb(CMTB)H2O]n(1)和[Cd(CMTB)]n(2)两个配位聚合物,并用X-射线单晶结构分析、电感耦合等离子光谱和红外光谱对其进行了表征.化合物1属于三斜晶系,空间群为P(1),晶胞参数为a=0.64508(13)nm,b=0.84783(17)nm,c=0.95630(19)nm,α=90.37(3)°,β=92.75(3)°,γ=106.40(3)°,Z＝2；化合物1具有二维层状结构,每1个Pb(Ⅱ)与来自4个配体的5个氧原子以及1个来自水分子的氧原子配位,形成了1个变形八面体的几何构型.化合物2为单斜晶系,空间群是P21,晶胞参数为a=0.78627(16)nm,b=0.60055(12)nm,c=1.0013(2)nm,β=91.14(3)°,Z＝2.化合物2是一个二维层状化合物,Cd(Ⅱ)与5个氧原子和1个硫原子配位形成了六配位的八面体构型.同时,我们对两个配合物的荧光性质进行了研究.%Two coordination polymers, [Pb(CMTB)H2O]n (1) and [Cd(CMTB)]n (2) (CMTB=4-[(carboxymethyl)thio]-benzoic acid) were synthesized under mild mixed solvothermal conditions and characterized by single crystal X-ray diffraction, ICP and IR spectroscopy. Compound 1 crystallizes in triclinic system, space group P-1 with cell parameters: a=0.645 08(13) nm, b=0.847 83(17) nm, c=0.956 30(19) nm, α=90.37(3)°, β=92.75(3)°,γ=106.40(3)° and Z=2. It possesses a layered architecture and each Pb(Ⅱ) is six-coordinated to five 0 atoms from four (CMTB) ligands, one oxygen atom from the water molecule forming a distorted octahedral coordination geometry. Compound 2 crystallizes in monoclinic system, space group Pl with cell parameters: a=0.786 27(16) nm, b= 0.600 55(12) nm, c=1.001 3(2) nm, β=91.14(3)° and Z=2. It displays two-dimensional frameworks and metal ions Cd(Ⅱ) were octahedrally coordinated to five oxygen atoms and one sulfur atoms. Compounds 1 and 2 are both photoluminescent active materials, and their emission properties were also studied. CCDC: 873419, 1; 857079, 2.
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