A new metalloporphyrin dimer: Effective and selective molecular tweezers for fullerenes
A new metalloporphyrin dimer: Effective and selective molecular tweezers for fullerenes
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DOI：
10.1016/j.cplett.2006.11.039
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发表时间：
2007-01-12
影响因子：
2.8
通讯作者：
Komatsu, Naoki
中科院分区：
文献类型：
--
作者：
Bhattacharya, Sumanta;Tominaga, Kazuyuki;Komatsu, Naoki
本文介绍了一种新型金属卟啉二聚体1，研究了其在甲苯介质中与C-60和C-70络合的光吸收和发光特性。1与C-60和C-70的1:1配合物的结合常数K分别为3 × 10(4)和2 × 10(5) dm(3) Mol（-1）。K的值表明，1作为一个有效和选择性的镊子，优先捕获C-70而不是C-60。分子力学和半经验PM3计算为解释1的C-60和C-70配合物的稳定能和电子结构提供了很好的支持。(c) 2006 Elsevier B.V.版权所有
The present Letter introduces a new type of metalloporphyrin dimer, 1, to examine its optical absorption and luminescence in complexation with C-60 and C-70 in toluene medium. Large binding constants (K) in the magnitude of similar to 3 x 10(4) and similar to 2 x 10(5) dm(3) Mol(-1) were obtained for the 1: 1 complexes of 1 with C-60 and C-70, respectively. Values of K suggest that 1 serves as an effective and selective tweezers to capture C-70 in preference to C-60. Molecular mechanics and semi-empirical PM3 calculations extend a good support in interpreting the stabilization energies and electronic structures for the C-60 and C-70 complexes of 1. (c) 2006 Elsevier B.V. All rights reserved.