ESR study of the molecular orientation and dynamics of stable organic radicals included in the 1‐D organic nanochannels of 2,4,6‐tris‐4‐(chlorophenoxy)‐1,3,5‐triazine
ESR study of the molecular orientation and dynamics of stable organic radicals included in the 1‐D organic nanochannels of 2,4,6‐tris‐4‐(chlorophenoxy)‐1,3,5‐triazine
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2,4,6-tris-4-(氯苯氧基)-1,3,5-三嗪一维有机纳米通道中稳定有机自由基的分子取向和动力学的ESR研究
DOI：
10.1002/mrc.3802
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发表时间：
2012
影响因子：
2
通讯作者：
A. Tani
中科院分区：
文献类型：
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作者：
Hirokazu Kobayashi;T. Asaji;A. Tani
用ESR波谱研究了2，4，6-三-(氯苯氧基)-1，3，5-三嗪(CLPOT)一维有机纳米通道中稳定的2，2，6，6-四甲基-1-哌啶-1-氧基(TEMPO)或4-羟基-TEMPO(TEMPO)的分子取向和动力学。光谱模拟表明，TEMPO或TEMPOL分子在纳米通道中发生轴向转动，激活能分别为8和7 kJ −1。旋转轴被估计为在相应根的g张量的轴系中向主x方向倾斜。这与三(邻苯二氧基)环三磷腈(TPP)纳米通道中类似IC的情况有很大不同，在TPP纳米通道中，自由基绕g张量的主轴y轴旋转。这种差异归因于CLPOT纳米通道具有更大的纳米空间。版权所有©2012 John Wiley&Sons，Ltd.
The molecular orientation and dynamics of the organic stable radicals such as 2,2,6,6‐tetramethyl‐1‐piperidinyl‐1‐oxyl (TEMPO) or 4‐hydroxy‐TEMPO (TEMPOL) included in the one‐dimensional (1‐D) organic nanochannels of 2,4,6‐tris‐4‐(chlorophenoxy)‐1,3,5‐triazine (CLPOT) were investigated by examining the inclusion compounds (ICs) diluted by the co‐inclusion of non‐radicals using ESR spectroscopy. Spectral simulation showed that the axial rotation of TEMPO or TEMPOL molecules is excited in the nanochannels with activation energies of 8 and 7 kJ mol−1, respectively. The rotation axis was estimated to be tilted towards the principal x direction in the axis system of the g‐tensor of the respective radicals. This is quite different from that for similar ICs in the nanochannels of tris(o‐phenylenedioxy)cyclotriphosphazene (TPP), in which the radicals are axially rotating around the principal axis y of the g‐tensor. The difference is attributed to the larger nanospace of the CLPOT nanochannels. Copyright © 2012 John Wiley & Sons, Ltd.
影响因子：
3.3
作者：
Kobayashi, Hirokazu;Ueda, Takahiro;Tani, Atsushi
通讯作者：
Tani, Atsushi
影响因子：
--
作者：
Kobayashi, H;Ueda, T;Tani, A
通讯作者：
Tani, A