A Structural Study of a Series of Bis(2,3-alkanedione dioximato)nickel(II) Complexes in the Crystal and the Liquid States by X-Ray Absorption Spectroscopy
作者:Seiichi Yamashita、Yoshio Yanase、Toshio Yamaguchi、Hisanobu Wakita
DOI:10.1246/bcsj.62.2902
日期:1989.9
structures of a series of bis(2,3-alkanedione dioximato)nickel(II) complexes, [Ni(R,R′-dioxH)2], with dioxH=C(=NOH)–C(=NO), R and R′=H(A), R=CH3 and R′=H(B), CH3(C), C2H5(D), n-C3H7(E), n-C4H9(F), n-C5H11(G), n-C6H13(H), or n-C10H21(I), were investigated in crystals, pyridine solution, and melt (160 °C) by means of extended X-ray absorption fine structure (EXAFS) and X-ray absorption near edge structure
一系列双(2,3-烷二酮二肟)镍(II)配合物[Ni(R,R'-dioxH)2]的结构,其中dioxH=C(=NOH)–C(=NO),R R'=H(A), R=CH3 和 R'=H(B), CH3(C), C2H5(D), n-C3H7(E), n-C4H9(F), n-C5H11(G) )、n-C6H13(H) 或 n-C10H21(I),通过扩展 X 射线吸收精细结构 (EXAFS) 和 X 射线吸收在晶体、吡啶溶液和熔体 (160 °C) 中进行了研究近边缘结构 (XANES)、磁化率和紫外/可见光谱。晶体中配合物 C、F 和 H 的磁化率显示出抗磁性。结晶样品 E、F 和 H 的电子光谱随乙醛肟配体的烷基取代基而变化,而吡啶溶液中的相应光谱彼此非常相似,与乙醛肟配体无关。EXAFS 数据显示,镍 (II) glyoximato 配合物中的平均 Ni-N 距离为 1.85–1.88 A,实际上与