5-硝基间苯二甲酸锰配合物的合成、晶体结构和热分解研究（英）

2006,14(4):257-261
郭金玉1, 张同来1, 张建国1, 刘艳红1, 郁开北2
1.北京理工大学爆炸科学技术国家重点实验室， 北京 100081;2.中国科学院成都分院分析测试中心， 四川 成都 610041
摘要：合成了5-硝基间苯二甲酸锰的配合物——Mn(nip)(H2O)5, 并用X射线单晶衍射、元素分析、DSC、TG和DTG技术对其进行了表征。配合物的配位中心Mn(Ⅱ)与5-硝基间苯二甲酸和5个水分子配位形成配位八面体结构。根据热分析结果和FT-IR分析可推断，加热过程中该晶体先失去5个配位水，后失去配体5-硝基间苯二甲酸，同时生成氧化锰和某种聚合物。
关键词：分析化学； Mn(nip)(H2O)5； 配位化合物； 晶体结构； 热分解

Synthesis, Crystal Structure and Thermal Behavior of5-Nitroisophthalate Complex with Mn(Ⅱ)

GUO Jin-yu1, ZHANG Tong-lai1, ZHANG Jian-guo1, LIU Yan-hong1, YU Kai-bei2
1.State Key Lab of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China;2.Center of Analysis and Test of Chengdu Branch, Chinese Academy of Sciences, Chengdu 610041, China
Abstract:The crystal of the title complex Mn(nip)(H2O)5 ( nip=5-nitroisophthalate ) was synthesized, and cultured in the filtrate of the reaction mixture. The X-ray single crystal diffractometer with graphite monochromated MoKα (λ= 0.71073Å), elemental microanalysis, FT-IR, DSC and TG-DTG techniques were used to characterize the structure and thermal behaviors of the title complex. The results show that the central Mn2+ cation coordinates to the ligands 5-nitroisophthalate and 5H2O in a distorted octahedral pattern. And the title coordination compound loses its five water molecules at the first step and the 5-nitroisophthalate at the second step during heating based on the thermal analyses and FT-IR data.
Key words:analytical chemistry; Mn(nip)(H2O)5; complex; crystal structure; thermal decomposition
Received:November 23, 2005
Fund:The National Natural Science Foundation of China(20471008) and The Fundamental Research Foundation Beijing Institute of Technology(BIT-UBF-200302B01 & BIT-UBF-200502B4221).
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