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- Title
Reversible Transition between Discrete and 1D Infinite Architectures: A Temperature‐Responsive Cu(I) Complex with a Flexible Disilane‐Bridged Bis(pyridine) Ligand.
- Authors
Zhao, Yongjin; Nakae, Toyotaka; Takeya, Satoshi; Hattori, Mineyuki; Saito, Daisuke; Kato, Masako; Ohmasa, Yoshinori; Sato, Shun; Yamamuro, Osamu; Galica, Tomasz; Nishibori, Eiji; Kobayashi, Shiori; Seki, Tomohiro; Yamada, Teppei; Yamanoi, Yoshinori
- Abstract
A thermoresponsive structural change based on a disilane‐bridged bis(pyridine) ligand and CuI is reported. Single‐crystal X‐ray analysis revealed that there are two polymorphs in the Cu(I) complex: octanuclear copper(I) complex at 20 °C and 1D staircase copper(I) polymer complex at −173 °C. The formation of these polymorphs is due to the flexibility of the ligand. Cu−I bond formation is observed upon cooling the sample from −10 °C to −170 °C. The temperature‐induced phase transition progression was clarified by DSC, VT‐PXRD, and VT‐photoluminescence measurements and indicated a reversible temperature‐controlled crystal‐to‐crystal phase transition. Observation on a VT‐stage using a high‐speed camera showed crystal cracking during single‐crystal to single‐crystal transitions between these polymorphic forms.
- Subjects
REVERSIBLE phase transitions; COPPER; PHASE transitions; PYRIDINE; POLYMERS
- Publication
Chemistry - A European Journal, 2023, Vol 29, Issue 38, p1
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.202204002