Unique vapochromism of a paddlewheel-type dirhodium complex accompanied by dynamic structural and phase transitions

Yusuke Kataoka; Yoshihiro Kohara; Natsumi Yano; Tatsuya Kawamoto

doi:10.1039/d0dt02672g

Unique vapochromism of a paddlewheel-type dirhodium complex accompanied by dynamic structural and phase transitions

Dalton Trans. 2020 Oct 27;49(41):14373-14377. doi: 10.1039/d0dt02672g.

Authors

Yusuke Kataoka¹, Yoshihiro Kohara¹, Natsumi Yano², Tatsuya Kawamoto³

Affiliations

¹ Department of Chemistry, Graduate School of Natural Science and Technology, Shimane University, 1060, Nishikawatsu, Matsue, Shimane 690-8504, Japan. kataoka@riko.shimane-u.ac.jp.
² Special Course of Science and Engineering, Graduate School of Natural Science and Technology, Shimane University, 1060, Nishikawatsu, Matsue, Shimane 690-8504, Japan.
³ Department of Chemistry, Faculty of Science, Kanagawa University, 2946, Tsuchiya, Hiratsuka, Kanagawa 259-1293, Japan.

PMID: 32839798
DOI: 10.1039/d0dt02672g

Abstract

The one-dimensional coordination polymer [Rh2(HA)4]n (1G; HA = hexanoate) exhibits a drastic vapochromic color change from green to red upon exposure to pyridine (py) vapor. Heating the red discrete complex [Rh2(HA)4(py)2] (1R) at 338 K affords the purple discrete tetrarhodium complex [Rh2(HA)4(py)]2 (1P), which is an intermediate species in the vapochromic transformation of 1G to 1R. The obtained complexes 1G, 1R, and 1P differ not only in their color in the solid state, but also in their temperature-dependent phase transition properties.