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    題名: 特異巨環鎳錯化合物的質譜研究
    其他題名: Mass Spectrometry of a Novel Nickel (II) Complex with Macrocyclic Ligand
    作者: 王文竹;唐啟文
    貢獻者: 淡江大學化學學系
    日期: 1985
    上傳時間: 2009-12-01
    出版者: 中國化學會
    摘要: 本研究合成-已知平面巨環鎳錯合物,貳(二氟硼二甲基乙二醛肟)絡鎳(I)(Bis(difluor-oborondimethyglyoximato)nickel(I)),簡稱為Ni(DMGB)_2。其成分組成及結合經由元素分析及紅外光譜之鑑定。此錯化合物之質譜,利用“價位變化"之模式經過詳細分析之後,得知為首先經由B-F鍵及B-O鍵之斷裂,發生開環反應。其次有一系列的N-O及C-N鍵斷裂,形成了一些"古典錯化合物"裂片,並伴隨產生一些π-鍵型或π-接受者型之有機金屬化合物裂片。特別值得注意的是最先碎裂之氟原子,它本身也有弱鍵結性,當作一個新的配位子,配位鍵結於裂片上,甚至發生配位結合於親分子平面之上,生成[NiL_2F]^+之離子,這些機構是以前的文獻中未曾被報告過。
    In this study, the square planar macrocyclic nickel(II) complexes, bis (difluoroborondimethylglyoximato)nickel(II) [Abbrev.: Ni(DMGB)_2], has been prepared and characterized by elemental analysis and infrared spectroscopy. The structures of fragments observed in mass spectra of this complex are discussed on the basis of "valence-changing concept" model. Firstly, the open-ring reaction occurred by B-F bond and B-0 bond fission. Secondly, N-O bond and C-N bond were borken to form some π-bond or π-acceptor type organometallic fragments. It is noteworthy that the fluorine atom, produced from the first fragmentation, has weak bonding tendency to coordinate with the metal ion in the other fragments. Such as the fluorine atom was coordinated to the parent molecule as an axial ligand to form [ML_2F]^+ ion. These results have not been reported in the previous papers.
    關聯: 化學 43(1),頁 30-38
    DOI: 10.6623/chem.1985005
    顯示於類別:[化學學系暨研究所] 期刊論文

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