配合物{[Mn(bpe)(mtyaa)_2(H_2O)_2]}_n的合成、晶体结构和性质

Synthesis,Crystal Structure and Properties of Coordination Compound {[Mn(bpe)(mtyaa)_2(H_2O)_2]}_n

以2-(5-甲基-1,3,4-噻二唑)-硫乙酸为主配体、1,2-顺(4-吡啶)乙烷为辅助配体与锰离子用水热法合成了一个锰配合物{[Mn(bpe)(mtyaa)2(H2O)2]}n(mtyaa=2-(5-甲基-1,3,4-噻二唑)-硫乙酸;bpe=1,2-顺(4-吡啶)乙烷.我们用X-射线单晶衍射仪测定了配合物的单晶结构,并对它进行了元素分析、红外光谱、热重和粉末X-射线衍射表征.配合物属于单斜晶系C2/c空间群,a=1.9196(6)nm,b=1.2122(4)nm,c=1.4920(4)nm,β=124.551(4),V=2.8594(15)nm3,Z=4.配合物中每个锰离子与mtyaa的两个氧原子、两个水分子和两个来自于bpe的氮原子配位,形成扭曲的八面体构型.bpe配体采取双齿桥连模式将临近的锰离子连接成一维链状结构,配位水与羧基氧以及配体中的氮原子之间的氢键作用将配合物的链状结构连成三维网状结构.

One manganese coordination compound { [Mn（ bpe）（ mtyaa）2（H2O）2]}ncontaining ligands 2-（ 5-methyl-1,3,4-thiadiazol-2-ylthio） acetic acid and 4-（ 2-（ pyridine-4-yl） ethyl） pyridine was hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction. Then the compound was further characterized by elemental analysis,FTIR spectra,thermal analysis and powder X-ray diffraction. Coordination compound 1 crystallized in the monoclinic,space group C2/c,a = 1. 9196（ 6） nm,b = 1. 2122（ 4） nm,c = 1. 4920（ 4） nm,β = 124. 551（ 4）,V = 2. 8594（ 15） nm3,Z = 4. Single-crystal X-ray diffraction analysis indicated that each manganese ion coordinated with two oxygen atoms,two water molecules and two nitrogen atoms coming from bpe ligands,and exhibited a distorted octahedral geometry. Bpe ligands adopted bidentate bridging mode and linked the adjacent manganese ions to result in a one-dimensional chain structure. Hydrogen bonded between coordinated water and carboxylic oxygen and nitrogen atoms of ligands,and the chain structure was connected into a 3-D structure network.