Structural and physicochemical characteristics of chelate nickel(II) compounds based on 1,2,3-triketone (hydrazone)imines
作者:O. G. Khudina、E. V. Shchegol’kov、Ya. V. Burgart、V. I. Saloutin、D. V. Bukhvalov、D. V. Starichenko、Yu. N. Shvachko、A. V. Korolev、V. V. Ustinov、G. G. Aleksandrov、I. L. Eremenko、O. N. Kazheva、G. V. Shilov、O. A. D’yachenko、O. N. Chupakhin
DOI:10.1007/s11172-007-0018-z
日期:2007.1
The crystal structures of the chelates NiIIL (L2− are the N,N′-(o-phenylene)-bis[4-(4-methylphenyl)hydrazono-3-oxo-1,1,2,2-tetrafluorononane-5-iminate], N,N′-ethylene-bis[3-(4-methylphenyl)hydrazono-4-oxo-5,5,6,6,7,7,8,8-octafluorooctane-2-iminate], or N,N′-ethylene-bis(4-hydroxy-5,5,6,6,7,7,8,8-octafluoro-3-octene-2-iminate) anions) were studied by X-ray diffraction. Magnetic measurements and ESR spectroscopic studies revealed the appearance of paramagnetism due to a tetrahedral distortion of the coordination unit and also the unusual behavior of the effective magnetic moment at low temperatures.
螯合物 NiIIL(
L2-为 N,N′-(邻苯基)-双[4-(4-甲基苯基)
肼-3-氧代-1,1,2,2-四
氟壬烷-5-亚胺]、N,N′-
乙烯-双[3-(4-甲基苯基)
肼-4-氧代-5、或 N,N′-
乙烯-双(
4-羟基-5,5,6,6,7,7,8,8-八
氟-3-
辛烯-2-
亚胺)阴离子)进行了 X 射线衍射研究。磁性测量和 ESR 光谱研究显示,由于配位单元的四面体畸变,出现了顺磁现象,而且有效磁矩在低温下的表现也很不寻常。