Unusual flash cooling-induced phase in a crystal of triphenylsilanol.
Acta Crystallogr B Struct Sci Cryst Eng Mater
; 79(Pt 3): 245-251, 2023 Jun 01.
Article
em En
| MEDLINE
| ID: mdl-37249508
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 100â
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 100â
K (phase II) causes the crystal to return to the original phase I at about 150â
K. The crystal undergoes the observed transformation in a reversible manner in many consecutive flash cooling/heating cycles without cracking.
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MEDLINE
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En
Ano de publicação:
2023
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Article