Simple Mononuclear Cobalt(II) Complex: A Single-Molecule Magnet Showing Two Slow Relaxation Processes

被引：125

作者：

Boca, Roman ^{[1
]}

Miklovic, Jozef ^{[1
]}

Titis, Jan ^{[1
]}

机构：

[1] Univ SS Cyril & Methodius, Dept Chem, FPV, Trnava 91701, Slovakia

来源：

INORGANIC CHEMISTRY | 2014年 / 53卷 / 05期

关键词：

ZERO-FIELD; MAGNETIZATION; BEHAVIOR; DY;

D O I：

10.1021/ic5000638

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Complex [Co(PPh3)(2)Br-2] possesses intermediate magnetic anisotropy, D/hc = -13 cm(-1). It displays superparamagnetic behavior either in the absence of the magnetic field or in fields of B-dc = 0.05, 0.1, 0.15, and 0.2 T. At B-dc = 0.1 T, the barrier to spin reversal U/k(B) = 37 K and the extrapolated relaxation time tau(0) = 9.4 x 10(-11) s confirm its classification as a single-molecule magnet. At B-dc = 0.2 T, two relaxation processes are evidenced.

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页码：2367 / 2369

页数：3

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