Surface morphology-induced spin-crossover-inactive high-spin state in a coordination framework

Shun Sakaida; Kazuya Otsubo; Ken-Ichi Otake; Shogo Kawaguchi; Mitsuhiko Maesato; Susumu Kitagawa; Hiroshi Kitagawa

doi:10.1039/d0cc06682f

Surface morphology-induced spin-crossover-inactive high-spin state in a coordination framework

Chem Commun (Camb). 2021 Feb 15;57(12):1462-1465. doi: 10.1039/d0cc06682f.

Authors

Shun Sakaida¹, Kazuya Otsubo¹, Ken-Ichi Otake², Shogo Kawaguchi³, Mitsuhiko Maesato¹, Susumu Kitagawa², Hiroshi Kitagawa¹

Affiliations

¹ Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan. kazuya@kuchem.kyoto-u.ac.jp kitagawa@kuchem.kyoto-u.ac.jp.
² Institute for Integrated Cell-Material Science (iCeMS), Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan.
³ Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan.

PMID: 33439156
DOI: 10.1039/d0cc06682f

Abstract

Here we report a surface morphology-induced spin state control in ultrathin films of a spin-crossover (SCO) material. The surface microstructure of film domains exhibited selectivity, to stabilize the SCO-active high-spin (HS) or SCO-inactive high-spin (HS2) states. To date, the latter has only been confirmed in the bulk counterpart at gigapascal pressure.