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A novel heterometallic complex [Na2Cu2Gd2(pdc)4(H2O)14·2H2O] (H3pdc = 1H- pyrazole-3,5-dicarboxylic acid) has been synthesized and characterized by 1R spectra, elemental analysis, and single-crystal X-ray analysis. The crystal belongs to the monoclinic system, space group P2 1/c with a = 7.9521(18), b = 12.251(3), c = 22.293(5) A, β = 110.173(5)°, V= 2038.5(8) A^3, Mr = 1388.13, Z = 2, F(000) = 1352, Dc = 2.261 g/cm^3,/2 = 4.380 mm^-1, the final R = 0.0409 and wR = 0.0622 for 2453 observed reflections with I 〉 2σ(I). The structural analysis shows that the Na^I, Cu^II and Gd^II ions are linked together by two kinds of bridging ligands (pdc^3- and H2O) to form a main moiety [Na2Cu2Gd2(pdc)4(H2O)14], which can be regarded as a centrosymmetric dimmer of [NaCuGd(pdc)2(H2O)7]. Many hydrogen bonds exist in the complex to build a 3D supramolecular framework. 相似文献
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分别用水热法和溶液法合成了镍的两种配位聚合物[2{Ni(HO-BDC)(bpe)H2O}]n·n(py)·nH2O (1) (HO-H2BDC=5-羟基-1,3-苯二甲酸,bpe=1,2-二(4-吡啶)乙烷,py=吡啶)和[Ni(HO-BDC)(bipy)]n·nH2O (2) (bipy=2,2’-联吡啶),并对它们进行了元素分析、红外光谱等表征,并用X-射线单晶衍射测定了配合物的单晶结构。配位聚合物1晶体属三斜晶系,P1空间群,晶体学数据为:a= 1.019 2(2) nm, b=1.145 5(3) nm, c=1.246 0(3) nm, α=68.377(5)°, β=67.275(12)°, γ=71.821(7)°,V=1.222 7(5) nm3, Z=1, Mr=979.26, Dc=1.330 g·cm-3, F(000)=508, μ=0.835, R1=0.049 4, wR2=0.112 1;配位聚合物2晶体属单斜晶系, P2/c空间群,晶体学数据为:a= 0.861 1(2) nm, b=1.106 8(3) nm, c=1.839 4(4) nm, β=104.267(9), V=1.699 0(7) nm3, Z=4, Mr=413.00, Dc=1.615 g·cm-3, F(000)=848, μ=1.182, R1=0.063 5, wR2=0.196 9。配合物1中形成了具有纳米孔的2D结构,而配合物2则是一个1D链状结构,它们分别通过氢键和π-π堆积效应形成3D结构。 相似文献
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联吡啶钌(Ⅱ)配合物的合成、晶体结构及其在染料敏化太阳能电池中的应用 总被引:2,自引:0,他引:2
制备了一个多吡啶钌(Ⅱ)配合物[Ru(bipy)2(Pyap)](PF6)2 (1)(bipy=2,2′-联吡啶,Pyap=4-(2-吡啶亚甲氨基)-苯酚),研究了它在染料敏化太阳能电池中的应用,对它进行了元素分析、IR、 1H NMR、UV-Vis、PL、XRD、CV、IV等表征。将配合物1的水溶液自然蒸发,得到配合物[Ru(bipy)2(Pyap)](PF6)2·H2O (2)的晶体,我们测定了它的单晶结构,配合物2的晶体属单斜晶系,P21/c空间群。配合物1的乙腈溶液在410~490 nm处有较宽的对应于MLCT跃迁的紫外吸收峰。在波长为400 nm光的激发下,分别在436、463、490 nm处各出现了1个荧光发射峰。其CV曲线表明1有2对可逆的氧化还原峰,在-0.158 V处有1个不可逆的氧化峰。用配合物1作为光敏染料组装成电池,测得最大输出功率Pmax为0.025 mW,短路电流Isc为0.142 mA,开路电压Voc为402 mV,填充因子ff为0.444,光电转化效率η为0.025%。 相似文献
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