机构地区: 广东轻工职业技术学院
出 处: 《无机化学学报》 2012年第8期1763-1768,共6页
摘 要: 香草醛和L-2-氨基-3-苯基-1-丙醇缩合得到的手性希夫碱配体(L-H2vap)与Cu(ClO4)2.6H2O,Gd(NO3)3.6H2O和三乙胺在4-羟基苯甲酸的存在下反应得到L-[Cu4(Hvap)2(vap)2(MeOH)2](ClO4)2.2MeOH.H2O(1)。通过元素分析、红外、热重分析和固体CD光谱对1结构进行了表征,并通过X-射线单晶衍射确定其单晶结构,结果表明1属于单斜晶系,P21手性空间群,Z=2,包含船型{Cu4O4}结构。1的Cu4簇通过配体、溶剂分子和高氯酸根离子的氧原子间的氢键沿b轴形成超分子链。固体CD光谱证实了1的手性。 Chiral Schiff-based ligand L-H2vap,derived from the condensation of o-vanillin and L-2-amino-3-phenyl-1-propanol,reacts with Cu(ClO4)2·6H2O,Gd(NO3)3·6H2O and triethylamine in the presence of 4-hydroxybenzoid acid to give L-[Cu4(Hvap)2(vap)2(MeOH)2](ClO4)2·2MeOH·H2O(1).The structure of 1 was characterized by EA,IR,TGA,solid-state CD spectra and the single-crystal X-ray diffraction analyses.The X-ray diffraction analyses reveal that the complex crystallize in the monoclinic system,chiral space group P21 with Z=2,containing a boat-shaped {Cu4O4} structure.Cu4 clusters in 1 are connected through intermolecular hydrogen bonding to form supramolecular chains along b axis.The solid-state CD spectra comfirm the chiral nature of 1.CCDC: 883888.