一个不对称三芳基三氮唑锰配合物的合成、晶体结构和性质研究(英文) |
Synthesis, Crystal Structure and Properties of a Manganese(Ⅱ) Complex with an Asymmetrical Substituted Triaryltriazole |
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摘要: 以3-对甲氧苯基-4-对氯苯基-5-(2-吡啶基)-1,2,4-三氮唑(L)为配体,合成了1个单核锰配合物trans-[MnL2(NCS)2],对其进行了红外、电喷雾质谱、热重和单晶结构表征,该配合物属于单斜晶系,空间群为P21/c,a=1.458 5(3) nm,b=0.915 00(18) nm,c=1.616 3(3) nm,β=101.70(3)°,V=2.112 2(7) nm3,Z=2,R1=0.058 5。单晶结构表明,锰离子处于1个扭曲的八面体配位环境中,2个硫氰根离子呈反式配位,每个配体L通过三氮唑上1个氮原子和吡啶上1个氮原子参与配位。热重分析表明该配合物在260 ℃开始发生分解。变温磁化率显示该配合物为顺磁性(1.8~300 K)。 |
关键词: 锰配合物 晶体结构 三氮唑 性质 |
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Abstract: A mononuclear manganese(Ⅱ) complex, trans-[MnL2(NCS)2] (L=3-(p-methoxyphenyl)-4-(p-chlorophenyl)-5-(2-pyridyl)-1,2,4-triazole), was synthesized and characterized by FTIR, ESI-MS, TG and X-ray crystallography. The complex crystallizes in monoclinic system with space group P21/c, a=1.458 5(3) nm, b=0.915 00(18) nm, c=1.616 3(3) nm, β=101.70(3)°, V=2.112 2(7) nm3, Z=2, and final R1=0.058 5. The manganese atom lies in a distorted octahedral environment with two NCS- ions in the trans positions. The ligand L coordinates via one triazole nitrogen and one pyridine nitrogen atom. The TG analysis shows that the complex is stable below 260 ℃. Magnetic data show that the complex is paramagnetic in the range of 1.8~300 K. CCDC: 833359. |
Keywords: Mn(Ⅱ) complex crystal structure 1,2,4-triazole properties |
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沈国平,赵 建,陈 浪,孙 峰,沈 旋,朱敦如,刘晓勤.一个不对称三芳基三氮唑锰配合物的合成、晶体结构和性质研究(英文)[J].无机化学学报,2012,28(1):159-163. |
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