高等学校化学学报
高等學校化學學報
고등학교화학학보
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES
2014年
5期
928-933
,共6页
刘超%卓馨%张虎%刘新华
劉超%卓馨%張虎%劉新華
류초%탁형%장호%류신화
2-氨甲基吡啶%醋酸锌%配合物%晶体结构%催化性能
2-氨甲基吡啶%醋痠鋅%配閤物%晶體結構%催化性能
2-안갑기필정%작산자%배합물%정체결구%최화성능
2-( Aminomethyl) pyridine%Zinc acetate%Complex%Crystal structure%Catalytic performance
以2-氨甲基吡啶为配体与醋酸锌反应合成了一种新型锌金属配合物[Zn( AMPy)2(OAc)]2·[ Zn( OAc)4]( AMPy=2-氨甲基吡啶),通过核磁共振谱、红外光谱、元素分析和X射线单晶衍射对其结构进行了表征.晶体结构显示,该配合物属于三斜晶系,空间群为 P1,晶胞参数为 a=1.07360(19) nm, b=1.2491(2) nm, c=1.8976(3) nm,α=83.809(2)°,β=89.595(2)°,γ=65.708(2)°, V=2.3039(7) nm3, Z=2;配合物分子由3个不同的配位Zn离子通过分子内氢键连成一个完整的分子,分子间氢键再将其连成一个二维网状结构.研究了该金属配合物在Henry催化反应方面的性能,并优化出最佳催化条件.
以2-氨甲基吡啶為配體與醋痠鋅反應閤成瞭一種新型鋅金屬配閤物[Zn( AMPy)2(OAc)]2·[ Zn( OAc)4]( AMPy=2-氨甲基吡啶),通過覈磁共振譜、紅外光譜、元素分析和X射線單晶衍射對其結構進行瞭錶徵.晶體結構顯示,該配閤物屬于三斜晶繫,空間群為 P1,晶胞參數為 a=1.07360(19) nm, b=1.2491(2) nm, c=1.8976(3) nm,α=83.809(2)°,β=89.595(2)°,γ=65.708(2)°, V=2.3039(7) nm3, Z=2;配閤物分子由3箇不同的配位Zn離子通過分子內氫鍵連成一箇完整的分子,分子間氫鍵再將其連成一箇二維網狀結構.研究瞭該金屬配閤物在Henry催化反應方麵的性能,併優化齣最佳催化條件.
이2-안갑기필정위배체여작산자반응합성료일충신형자금속배합물[Zn( AMPy)2(OAc)]2·[ Zn( OAc)4]( AMPy=2-안갑기필정),통과핵자공진보、홍외광보、원소분석화X사선단정연사대기결구진행료표정.정체결구현시,해배합물속우삼사정계,공간군위 P1,정포삼수위 a=1.07360(19) nm, b=1.2491(2) nm, c=1.8976(3) nm,α=83.809(2)°,β=89.595(2)°,γ=65.708(2)°, V=2.3039(7) nm3, Z=2;배합물분자유3개불동적배위Zn리자통과분자내경건련성일개완정적분자,분자간경건재장기련성일개이유망상결구.연구료해금속배합물재Henry최화반응방면적성능,병우화출최가최화조건.
A novel zinc metal complex [ Zn ( AMPy ) 2 ( OAc ) ] 2 [ Zn ( OAc ) 4 ] [ AMPy=2-( aminomethyl ) pyridine] was synthesized by the reaction of zinc acetate to 2-( aminomethyl) pyridine ligand. The structure of the complex was characterized by 1 H NMR, IR, elemental analysis and X-ray single crystal diffraction. The crystal structural analyses show that the complex belongs to triclinic system, space group is P1 with a=1. 07360(19) nm, b=1. 2491(2) nm, c=1. 8976(3) nm, α=83. 809(2)°, β=89. 595(2)°, γ=65. 708(2)°, V=2. 3039(7) nm3, Z=2. The complex molecular consists of three different coordinated zinc ions which are connected by intramolecular hydrogen bonds into a total molecular, and 2D network structure is further formed by intermolecular hydrogen bonds. The catalytic performance of the metal complex in Henry reaction was studied, and the optimum catalytic conditions were obtained. The results show that the complex exhibits a high catalytic performance with 9%( molar fraction) of catalyst loading, methanol as solvent and reaction at room temperature for 20 h.