Competition between electron-correlation in Ni(III) and electron-lattice interaction in Pd(II)-Pd(IV) in mixed-metal MX-chain, Ni1-xPdx(chxn)(2)Br-3
Competition between electron-correlation in Ni(III) and electron-lattice interaction in Pd(II)-Pd(IV) in mixed-metal MX-chain, Ni1-xPdx(chxn)(2)Br-3
复制标题
DOI：
10.1016/s0379-6779(97)81107-1
复制
发表时间：
1997-02-28
期刊：
影响因子：
4.4
通讯作者：
Yakushi, K
中科院分区：
文献类型：
--
作者：
Manabe, T;Kawashima, T;Yakushi, K
测量了一系列Ni-Pd混合金属MX链化合物Ni1-xPdx(Chxn)2Br3的电导率、IR、XPS和共振拉曼光谱，以研究Ni(III)中的电子关联和Pd(II)-Pd(IV)态中的电子-晶格相互作用之间的竞争。在这些化合物中，当x=0.4时，电导活化能最小。当x=0.4时，VN-H不分裂，当x大于0.5时，VN-H呈现三重态。这一结果表明，Ni(III)态有效地影响了Pd(II)-Pd(IV)混合价态，向Pd(III)态靠拢。
The electrical conductivities, IR, XPS and resonance Raman spectra of a series of Ni-Pd mixed-metal MX-chain compounds, Ni1-xPdx(chxn)2Br3 have been measured in order to investigate the competition between the electron-correlation in Ni(III) and the electron-lattice interaction in Pd(II)-Pd(IV) states. In these compounds, at x=0.4, the activation energy in electrical conductivity is minimized. And at x=0.4 or below, the vN-H does not split, while at x with larger than 0.5, vN-H shows triplet. This result suggests that the Pd(II)-Pd(IV) mixed-valence states are effectively influenced by Ni(III) states, approaching toward the Pd(III) states.