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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/25061

    Title: Mössbauer And Magnetic Properties Investigation Of The Spin States In 2 Or 3-Pyridyl Imine Complexes On Iron (Ii) Dichloride
    Authors: 魏和祥;Wei, Ho-hsiang;Leu, L. R.
    Contributors: 淡江大學化學學系
    Date: 1979-01-01
    Issue Date: 2009-12-01
    Publisher: EDP Sciences
    Abstract: The present work is concerned with Mössbauer spectra and magnetic properties of some sixcoordinated complexes of Fe(II) dichloride with bis-diimine (2 or 3-pyridyl imines, C5H4NCR1=NR2 ; R1 = H, CH3, C6H5 ; R2 = C6H5, C6H4CH3, C6H4Cl). For the 2-pyridyl imine complexes, the electronic ground state of Fe(II) changed from high-spin state to the intermediate-spin state when H is replaced by CH3 or C6H5 at R1. However, we found no effects of the replacement of C6H5 by C6H4CH3 or C6H4Cl at R2 on the spin state of Fe(II). In addition, Mössbauer spectra showed two doublets with about 1 : 2 ratio of quadrupole splittings and similar isomer shifts. This suggests that the cis- and trans-stereoisomers are present at low temperature. The 3-pyridyl imine complexes of Fe(II) are all in the high-spin state for any substituents in R1 and R2 groups.
    Relation: Journal de physique colloque C 40(C2), pp.355-358
    DOI: 10.1051/jphyscol:19792126
    Appears in Collections:[化學學系暨研究所] 期刊論文

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