系列异三核铬、锰、铁羧酸配合物的FAB-MS研究  

FAB-MS Study on a Series of Heterotrinuclear Carboxylato Complexes of Cr, Mn and Fe

作　　者：崔勇[1] 王燕茗[1] 陈波[1] 蔡素华[1] 周文波[1] 何玲洁[1] 张琳娜[1] 傅桂香[2] 亓伟年 

机构地区：[1]中国科学院福建物质结构研究所,福州350002 [2]中国科学院上海有机化学研究所,上海200032

出　　处：《Chinese Journal of Structural Chemistry》1999年第6期399-405,共7页结构化学（英文）

基　　金：国家自然科学基金

摘　　要：进行了系列异三核羧酸配合物〔Ｍ２Ｍ＇Ｏ（Ｏ２ＣＲ）６Ｐｙ３ 〕Ｘ （Ｍ， Ｍ＇ ＝ Ｃｒ， Ｆｅ，Ｍｎ； Ｒ＝ Ｈ， ＣＨ３， Ｃ２Ｈ５， Ｐｙ＝ 吡啶； Ｘ ＝ Ｏ２ＣＨ， Ｏ２ＣＥｔ， Ｃｌ， ＣｌＯ４）的快原子轰击质谱（ＦＡＢ－ＭＳ）研究， 观察到异三核的２ 类重组反应： 第１ 类生成含有〔Ｍ３〕和〔Ｍ２Ｍ＇〕两种碎片离子， 第２ 类则生成含有〔Ｍ３〕， 〔Ｍ２Ｍ＇〕， 〔ＭＭ＇２〕和〔Ｍ＇３〕等４ 种不同组合的碎片离子。文中初步探讨了进行２ 类重组反应的原因和规律。根据所提出的规律确定了金属离子反应速率的顺序为Ｃｒ ＞ Ｆｅ ＞ Ｍｎ。A series of heterotrinuclear carboxylato complexes 〔M 2M'O(O 2CR) 6Py 3〕X(M, M'=Cr, Fe, Mn; R=H, CH 3, C 2H 5; Py = pyridine; X = O 2CH, O 2CEt, Cl, ClO 4) are studied by the Fast Atom Bombardment Mass Spectra (FAB MS), and the results are reported in this paper. It has been found that there exist two kinds of recombination reaction of the trinuclear metals: the first forms two fragmentation ions 〔M 3〕 and 〔M 2M'〕, and the second forms four fragmentation ions, 〔M 3〕、 〔M 2M'〕、〔MM' 2〕 and 〔M' 3〕. The reason of the formation of this two kinds of recombination reaction as well as their regularity were discussed and the sequence of the reaction rate of metals has been concluded as: Cr > Fe > Mn.

关 键 词：快原子轰击质谱 异三核 羧酸 配合物 铬 锰 铁 

分 类 号：O614.611[理学—无机化学] O614.711[理学—化学]