Supramolecular Stacks of Bis(imidazolyl)porphyrin through Metal Coordination
Supramolecular Stacks of Bis(imidazolyl)porphyrin through Metal Coordination
复制标题
通过金属配位制备双(咪唑基)卟啉的超分子堆栈
DOI：
10.1246/bcsj.69.3563
复制
发表时间：
1996
影响因子：
4
通讯作者：
H. Miyaji
中科院分区：
文献类型：
--
作者：
Y. Kobuke;H. Miyaji
制备了顺式和反式双（1-甲基-2-咪唑基）四乙基四甲基卟啉Mg配合物。1H NMR、吸收光谱和荧光光谱表明，与锌类似，Mg更倾向于通过咪唑基与金属的配位形成二聚体，并进一步接受锌配合物中从未出现过的第六配位。在10−5 M （1 M = 1 mol dm−3）的低浓度下，反式mg复合物从二聚体组织到三聚体的繁殖开始，在2 × 10−3 M的溶液中，该体系平均组织为2.34 mer。
cis- and trans-bis(1-methyl-2-imidazolyl)tetraethyltetramethylporphyrin Mg complexes were prepared. 1H NMR, absorption, and fluorescence spectra suggest that Mg has a high tendency toward dimer formation through coordination from imidazolyl to metal in a similar way to Zn, and accepts further the sixth coordination, which never occurred in Zn complexes. Propagation of the organization from a dimer to a trimer for trans-Mg complex starts at such a low concentration level as 10−5 M (1 M = 1 mol dm−3) and a 2 × 10−3 M solution organized the system to a 2.34 mer on average.