Abstract
The unique phase in a crystal of triphenylsilanol (Ph3SiOH) is reported. It is observed that after the crystal is flash-cooled from room temperature to 100 K, a new stable ordered phase II occurs with an increase in the unit-cell parameters compared to the earlier reported phase I. The new phase II occurs upon fast cooling while on slow cooling the disordered phase I is present. Gradual heating from 100 K (phase II) causes the crystal to return to the original phase I at about 150 K. The crystal undergoes the observed transformation in a reversible manner in many consecutive flash cooling/heating cycles without cracking.
Publisher
International Union of Crystallography (IUCr)
Subject
Materials Chemistry,Metals and Alloys,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials
Reference22 articles.
1. Bolte, M. & Nordschild, S. (2006). Private deposition in the Cambridge Structural Database, refcode JIPTIL03. Cambridge Crystallographic Data Centre, 12 Union Road, Cambridge, England.
2. Tetrameric triphenylsilanol, (Ph3SiOH)4, and the adduct (Ph3SiOH)2–dimethyl sulfoxide, both at 120 K, and the adduct (Ph3SiOH)4–1,4-dioxan at 150 K: interplay of O—H...O and C—H...π(arene) interactions
3. Brandenburg, K. (2006). DIAMOND. Crystal Impact GbR, Bonn, Germany.
4. The analytical calculation of absorption in multifaceted crystals
5. Cooling-rate dependent single-crystal-to-single-crystal phase transition in an organic co-crystal