Issue 1, 2014
From the journal:

Inorganic Chemistry Frontiers

Perfect encapsulation of a guanidinium ion in a helical trinickel(ii) metallocryptand for efficient regulation of the helix inversion rate†‡

Shigehisa Akine,*a   Masato Miyashita,b   Shunjin Piaob  and  Tatsuya Nabeshima*b  

* Corresponding authors

a Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
E-mail: akine@se.kanazawa-u.ac.jp

b Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan
E-mail: nabesima@chem.tsukuba.ac.jp

Abstract

Novel tris(salen)-type trinickel(II) metallocryptands, [LNi3] (L = L1, L2), were designed and synthesized. The metallocryptand [L2Ni3] perfectly encapsulated a guanidinium ion in the cavity. The resulting guanidinium complex underwent significantly slow helix inversion compared to the free [L2Ni3]; thus the helix inversion rate was efficiently regulated by guanidinium recognition.

Graphical abstract: Perfect encapsulation of a guanidinium ion in a helical trinickel(ii) metallocryptand for efficient regulation of the helix inversion rate

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Article information

DOI
https://doi.org/10.1039/C3QI00067B
Article type
Communication
Submitted
02 Oct 2013
Accepted
29 Oct 2013
First published
20 Dec 2013

Inorg. Chem. Front., 2014,1, 53-57

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Perfect encapsulation of a guanidinium ion in a helical trinickel(II) metallocryptand for efficient regulation of the helix inversion rate

S. Akine, M. Miyashita, S. Piao and T. Nabeshima, Inorg. Chem. Front., 2014, 1, 53 DOI: 10.1039/C3QI00067B

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