Slider-crank mechanism in a molecular crystal: conversion of linear thermal expansion of a lattice to circular rotation of a coordination chain

Ryo Tsunashima; Naomi Fujikawa; Misaki Shiga; Sayu Miyagawa; Shiori Ohno; Atsuko Masuya-Suzuki; Tomoyuki Akutagawa; Kiyonori Takahashi; Takayoshi Nakamura; Sadafumi Nishihara

doi:10.1039/D2CE00768A

Slider-crank mechanism in a molecular crystal: conversion of linear thermal expansion of a lattice to circular rotation of a coordination chain†

Ryo Tsunashima,

*^ab Naomi Fujikawa,^a Misaki Shiga,^a Sayu Miyagawa,^b Shiori Ohno,^b Atsuko Masuya-Suzuki,

^ab Tomoyuki Akutagawa,

^c Kiyonori Takahashi,

^d Takayoshi Nakamura^d and Sadafumi Nishihara^e

Author affiliations

* Corresponding authors

^a Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yoshida 1677-1, Yamaguchi, Japan
E-mail: ryotsuna@yamaguchi-u.ac.jp

^b Chemistry Cource, Fuculty of Science, Yamaguchi University, Yoshida 1677-1, Yamaguchi, Japan

^c Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, Sendai, Japan

^d Research Institute for Electronic Science, Hokkaido University, Sapporo 001-0021, Japan

^e Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima 739-8526, Japan

Abstract

Thermally induced circular rotation of anionic [Co(OCN)₃(dabco)]_∞ chains was observed in Co(dabco)K(OCN)₃. The orientational angle of the ligand molecules was a function of temperature. This circular movement could be correlated to the slider-crank mechanism, in which the linear thermal expansion of the lattice was converted to the rotational motion of the ligand molecules.

CrystEngComm

Slider-crank mechanism in a molecular crystal: conversion of linear thermal expansion of a lattice to circular rotation of a coordination chain†

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Slider-crank mechanism in a molecular crystal: conversion of linear thermal expansion of a lattice to circular rotation of a coordination chain

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