Phosphorescence and zero-field optically detected magnetic resonance studies of the lowest excited triplet states of organometallic diimine complexes. 1. Rhodium bipyridine and rhodium phenanthroline complexes [Rh(bpy)3]3+ and [Rh(phen)3]3+
Phosphorescence and zero-field optically detected magnetic resonance studies of the lowest excited triplet states of organometallic diimine complexes. 1. Rhodium bipyridine and rhodium phenanthroline complexes [Rh(bpy)3]3+ and [Rh(phen)3]3+
复制标题
有机金属二亚胺配合物最低激发三重态的磷光和零场光学检测磁共振研究。
DOI：
10.1021/j100282a006
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
N. Hirota
中科院分区：
文献类型：
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作者：
Yasuo Komada;S. Yamauchi;N. Hirota
作者对1000/sup3/dm2进行了光谱和光探测磁共振研究pi pi.. *（Rh（bpy）/sub 3/）/sup 3 +/和（Rh（phen）/sub 3/）/sup 3 +/。他们已经观察到了一个很好的解决磷光光谱（Rh（phen）/sub 3/）（BF/sub 4/）/sub 3/，类似于1，10-菲咯啉，除了一些振动频率的变化。根据d的影响，比较了Rh配合物与Cd、Ir配合物的三重态寿命。pi.. * states. /sup 3/.的零场（zf）ODMR信号pi pi.. *铑配合物进行了观察，并获得了三重态子能级的性质，如zf分裂（zfs）和辐射和非辐射衰变速率常数。非常有趣的是，观察到小的zfs（3 - 5 GHz），与以前的估计相反。这一观察的具体化。在所获得的数据的基础上，他们讨论的结构，ZF计划，和辐射和非辐射机制的/sup 3/.. pi pi.. * Rh配合物。
The authors have made spectroscopic and optically detected magnetic resonance studies on /sup 3/..pi pi..* (Rh(bpy)/sub 3/)/sup 3 +/ and (Rh(phen)/sub 3/)/sup 3 +/ at liquid helium temperature. They have observed a well-resolved phosphorescence spectrum of (Rh(phen)/sub 3/)(BF/sub 4/)/sub 3/ that resembles that of 1,10-phenanthroline except for changes in some vibrational frequencies. The triplet lifetimes of the Rh complexes were compared with those of the Cd and Ir complexes in the light of the effect of d..pi..* states. Zero-field (zf) ODMR signals of the /sup 3/..pi pi..*Rh complexes were observed, and triplet sublevel properties, such as zf splittings (zfs) and radiative and nonradiative decay rate constants, were obtained. Very interestingly, small zfs (3-5 GHz) were observed, contrary to previous estimates. Rationalization of this observation is given. On the basis of the obtained data they discuss the structures, zf schemes, and radiative and nonradiative mechanisms in the /sup 3/..pi pi..* Rh complexes.