【摘要】 合成了3-羧基水杨醛缩2-氨甲基吡啶(H2SP)及其Cu(Ⅱ)配合物[Cu(HSP)(H2O)2]ClO4,通过红外光谱、紫外光谱、X射线单晶衍射分析等手段对配合物的结构进行了表征.该配合物属于单斜晶系,P-1空间群,晶胞参数为:a=0.871 53(12)nm,b=1.017 05(15)nm,c=1.939 3(3)nm,β=93.3°,V=1.716 13 nm3,Z=4,Dc=1.758 12 g/cm3,Mr=454.27,F(000)=924.00,R1=0.072 5,wR2=0.092 2.配合物中铜离子为五配位,处于变形的四方锥形配位环境中.分子间通过π-π堆积和氢键作用形成双分子链,然后通过π-π堆积形成二维层状结构,最后通过C-H…O弱氢键形成三维结构.更多还原

【Abstract】 N-(3-carboxylsalicylidene)-2-(iminomethyl)-pyridine(H2SP) and its complex [Cu(HSP)(H2O)2]ClO4 were synthesized and characterized with IR spectroscopy,UV-Vis spectroscopy,X-ray crystal diffraction techniques.The crystal of the title compound belongs to monoclinic system,space group P-1 with cell parameters: a = 0.871 53(12) nm,b = 1.017 05(15) nm,c = 1.939 3(3) nm,β = 93.3°,V = 1.716 13 nm3,Z = 4,Dc = 1.758 12 g/cm3,Mr=454.27,F(000) = 924.00,R1 = 0.072 5,wR2 = 0.092 2.The copper ion is five coordinated in a square pyramidal geometry.Antiparallel bimolecular chains are formed through π-π stacking and hydrogen bonding interactions.Two dimensional networks are formed with the antiparallel bimolecular chains also through π-π stacking interaction.Then the networks construct three dimensional structure through weak C-H…O intermolecular hydrogen bonds.更多还原