Magnetic Coupling in the Fullerene Dimer {Co(Ph3P)(C6H5CN)}2(渭2-畏2:畏2-C60)2 with Two Zerovalent Cobal
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- 作者：Dmitri V. Konarev ; Sergey I. Troyanov ; Yoshiaki Nakano ; Ksenya A. Ustimenko ; Akihiro Otsuka ; Hideki Yamochi ; Gunzi Saito ; Rimma N. Lyubovskaya
- 刊名：Organometallics
- 出版年：2013
- 出版时间：August 12, 2013
- 年：2013
- 卷：32
- 期：15
- 页码：4038-4041
- 全文大小：299K
- 年卷期：v.32,no.15(August 12, 2013)
- ISSN：1520-6041
文摘
The magnetic metal-bridged fullerene dimer {Co(Ph3P)(C6H5CN)}2(渭2-畏2,畏2-C60)2 was synthesized for the first time and studied by X-ray crystallography and magnetic susceptibility methods. The dimers, in which two fullerene C60 cages are 畏2-bonded through two Co0 atoms (<i>Si> = 1/2), have a triplet (<i>Si> = 1) state and transfer to a diamagnetic singlet (<i>Si> = 0) ground state below 50 K (<i>Ji>/<i>ki>B = 鈭?8.6 K). The theoretical calculations show that C60 can work as an efficient spin coupler between paramagnetic metals.