Synthesis,Crystal Structure and Characterization of a New Coordination Polymer Based on Trinuclear Mn(Ⅱ) Cluster:[Mn_3(L)_2(adip)_3]·2H_2O

The coordination polymer,[Mn3（L） 2（adip） 3]·2H2O（L = 2-（4-fluorophenyl） -1H-imidazo[4,5-f] [1,10]phenanthroline and H2adip = adipic acid） ,has been synthesized under hydro-thermal conditions and characterized by elemental analysis,IR and single-crystal X-ray diffraction. It crystallizes in triclinic,space group P1^- with a = 8.4085（11） ,b = 11.1273（14） ,c = 14.5758（18） ,α = 78.528（2） ,β = 75.425（2） ,γ = 78.143（2） °,V = 1276.0（3） A^3,Z = 1,C56H50F2Mn3N8O14,Mr = 1261.86,Dc = 1.642 g/cm^3,F（000） = 647,μ（MoKa） = 0.819 mm^-1,R = 0.0446 and wR = 0.1008. The backbones of the two types of adip dianions link the neighboring trinuclear Mn（Ⅱ） clusters to yield a two-dimensional layer structure. The large conjugated L ligands are located on both sides of the two-dimensional layers. Additionally,the O-H···O,O-H···N and N-H···O hydrogen bonds further stabilize the structure.

连翘的化学成分研究

目的对连翘Forsythia suspensa的化学成分进行研究。方法通过大孔吸附树脂、Sephadex LH-20、反相HPLC等多种色谱进行分离纯化,根据理化性质和波谱数据鉴定化合物结构。结果从连翘的50%乙醇提取物中分离得到了13个化合物,分别鉴定为毛柳苷(1)、连翘酯苷E(2)、quinolacetic acid(3)、黄瑞烷酮(4)、千里光内酯(5)、cleroindicin C(6)、4-羟基-4-异丙基-1-环己烯甲酸(7)、oleuropeic acid(8)、rel-(1S,2S,4S)-trihydroxy-p-menthane(9)、壬二酸(10)、2-羟基-丁二酸-4-内酯(11)、glochidioboside(12)、(+)-异落叶松脂醇-9-O-β-D-葡萄糖苷(13)。结论化合物5~13为从连翘属中首次分离得到。