Spin transition at the mesophase transition temperature in a cobalt(II) compound with branched alkyl chains.
Spin transition at the mesophase transition temperature in a cobalt(II) compound with branched alkyl chains.
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DOI：
10.1021/ic700754s
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发表时间：
2007-08
影响因子：
4.6
通讯作者：
S. Hayami;Reiko Moriyama;Aya Shuto;Y. Maeda;K. Ohta;K. Inoue
中科院分区：
文献类型：
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作者：
S. Hayami;Reiko Moriyama;Aya Shuto;Y. Maeda;K. Ohta;K. Inoue
合成了一种以三联吡啶为骨架的含支链烷基的钴化合物[Co（C5 C12 C10-terpy）2]（BF 4）2 [C5 C12 C10-terpy = 4 '，5“”-癸基-1“”-（十七烷氧基）-2，2“：6”，2 "-三联吡啶]。钴（II）化合物在液晶转变温度下表现出具有热滞后回线（T（1/2）向上箭头= 288 K和T（1/2）向下箭头= 284 K）的低自旋和高自旋之间的自旋转变。这是钴（II）化合物中第一个在晶体-液晶转变温度下发生自旋转变的例子。
A cobalt(II) compound, [Co(C5C12C10-terpy)2](BF4)2 [C5C12C10-terpy = 4',5' ''-decyl-1' ''-(heptadecyloxy)-2,2':6',2' '-terpyridine] with branched alkyl chains, based on a terpyridine frame, was synthesized. The cobalt(II) compound exhibits a spin transition between low-spin and high-spin with a thermal hysteresis loop (T(1/2) upward arrow = 288 K and T(1/2) downward arrow = 284 K) at the liquid-crystal transition temperature. It is the first example in the cobalt(II) compounds in which the spin transition occurs at the crystal-liquid crystal transition temperature.