Field-Induced Slow Magnetic Relaxation in the Ni(I) Complexes [NiCl(PPh<sub>3</sub>)<sub>2</sub>]·C<sub>4</sub>H<sub>8</sub>O and [Ni(N(SiMe<sub>3</sub>)<sub>2</sub>)(PPh<sub>3</sub>)<sub>2</sub>]
作者:Weiquan Lin、Tilmann Bodenstein、Valeriu Mereacre、Karin Fink、Andreas Eichhöfer
DOI:10.1021/acs.inorgchem.5b02497
日期:2016.3.7
Direct current (dc) and alternating current (ac) magnetic measurements have been performed on the three Ni(I) complexes: [NiCl(PPh3)3], [NiCl(PPh3)2]·C4H8O, and [Ni(N(SiMe3)2)(PPh3)2]. Fits of the dc magnetic data suggest an almost similar behavior of the three compounds, which display only moderate deviations from the spin-only values. The ac magnetic investigations reveal that the two complexes with
已经对以下三种Ni(I)配合物进行了直流(dc)和交流(ac)磁测量:[NiCl(PPh 3)3 ],[NiCl(PPh 3)2 ]·C 4 H 8 O和[Ni(N(SiMe 3)2)(PPh 3)2 ]。直流磁数据的拟合表明这三种化合物的行为几乎相似,它们仅显示与仅自旋值的适度偏差。交流磁研究表明,两个具有三角平面配位的配合物-[NiCl(PPh 3)2 ]·C 4 H 8 O和[Ni(N(SiMe 3)2)(PPh 3)2 ] —在施加的直流磁场下在低温下显示缓慢的磁弛豫,而四面体[NiCl(PPh 3)3 ]没有。基态和激发态以及磁数据是通过从头算波函数为基础的多配置方法计算出来的,包括动态相关以及自旋-轨道耦合。两个三角平面复合物包含阱隔离小号= 1 / 2的基态,而2小号= 1 / 2小于100cm的分割状态-1在四面体化合物被发现了。