Three host peculiarities of a cycloalkane-based micelle toward large metal-complex guests

Mamiko Hanafusa, Yamato Tsuchida, Kyosuke Matsumoto, Kei Kondo and Michito Yoshizawa ()
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Mamiko Hanafusa: Tokyo Institute of Technology
Yamato Tsuchida: Tokyo Institute of Technology
Kyosuke Matsumoto: Tokyo Institute of Technology
Kei Kondo: Tokyo Institute of Technology
Michito Yoshizawa: Tokyo Institute of Technology

Nature Communications, 2020, vol. 11, issue 1, 1-8

Abstract: Abstract Linear alkanes are essential building blocks for natural and artificial assemblies in water. As compared with typical, linear alkane-based micelles and recent aromatic micelles, we herein develop a cycloalkane-based micelle, consisting of bent amphiphiles with two cyclohexyl frameworks. This uncommon type of micelle, with a spherical core diameter of ~ 2 nm, forms in water in a spontaneous and quantitative manner. The cycloalkane-based, hydrophobic cavity displays peculiar host abilities as follows: (i) highly efficient uptake of sterically demanding Zn(II)-tetraphenylporphyrin and rubrene dyes, (ii) selective uptake of substituted Cu(II)-phthalocyanines and spherical nanocarbons, and (iii) uptake-induced solution-state emission of [Au(I)-dimethylpyrazolate]3 in water. These host functions toward the large metal-complex and other guests studied herein remain unaccomplished by previously reported micelles and supramolecular containers.

Date: 2020
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DOI: 10.1038/s41467-020-19886-4

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