教師資料查詢 | 類別: 期刊論文 | 教師: 魏和祥 WEI, HO-HSIANG (瀏覽個人網頁)

標題:Mössbauer and magnetic studies on the spin states of diiron(III)-porphyrin dicopper(II) complexes
學年83
學期1
出版(發表)日期1994/12/01
作品名稱Mössbauer and magnetic studies on the spin states of diiron(III)-porphyrin dicopper(II) complexes
作品名稱(其他語言)
著者Huang, S. F.; Wei, Ho-hsiang
單位淡江大學化學學系
出版者Dordrecht: Springer Netherlands
著錄名稱、卷期、頁數Hyperfine interactions 91(1), pp.809-814
摘要Several biological model complexes of cytochrome c oxidase analogues, such as X2(TPP)2Fe2(Apen)Cu2Cl4, where TPP=5, 10, 15, 20-tetraphenylporphine, Apen=bis(acetylpyrazine)-ethylenediimine, X=Cl−, N 3 −, Im, 1-Me-Im, 2-Me-Im, 4-Me-Im and OCH 3 −, were prepared. The electronic spin states of these complexes in solid state were studied by means of Mössbauer and EPR spectroscopies and magnetic susceptibility measurements. The iron(III) atom of these complexes is present in different spin states, depending upon the nature of the axial ligand X of Fe(III)-porphyrin; the N 3 −, Cl−, OCH 3 −, 2-Me-Im axial groups lead to complexes in a pure high-spin state independent of temperature. In contrast, the imidazole axial groups (e.g. Im, 4-Me-Im) behave differently and all show a temperature dependence of the6A1 ↔2T2 spin transition. The magnetic exchange behavior between Fe and Cu atoms in the present complexes is also discussed.
關鍵字
語言英文
ISSN0304-3843;1572-9540
期刊性質國外
收錄於
產學合作
通訊作者
審稿制度
國別荷蘭
公開徵稿
出版型式紙本
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