𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Pressure-induced phase transition in pentacene

✍ Scribed by L. Farina; A. Brillante; R.G. Della Valle; E. Venuti; M. Amboage; K. Syassen

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
198 KB
Volume
375
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis

We have recently studied two solid phases of bulk pentacene (polymorphs H and C) by means of lattice phonon Raman spectroscopy. The assignment, previously based on lattice dynamics calculations alone, is now verified by X-ray diffraction measurements, conclusively confirming the existence of both polymorphs. Furthermore, Raman phonon spectra indicate a pressure-induced phase transition where the polymorph C (lower density phase) transforms to the H form (higher density phase). The onset pressure for the phase transition is only 0.2 GPa. The phase change is irreversible.

πŸ“œ SIMILAR VOLUMES

Pressure induced phase transition in PbS
Pressure induced phase transition in PbSnTe
✍ T. Suski; M. Baj; W. Zuczkowski; K.L.I. Kobayashi; K.F. Komatsubara πŸ“‚ Article πŸ“… 1979 πŸ› Elsevier Science 🌐 English βš– 326 KB
Pressure-Induced Phase Transition in PrA
Pressure-Induced Phase Transition in PrAlO3.
✍ Brendan J. Kennedy; Thomas Vogt; C. David Martin; John B. Parise; Joseph A. Hril πŸ“‚ Article πŸ“… 2010 πŸ› John Wiley and Sons βš– 27 KB πŸ‘ 2 views
Pressure induced phase transition in MnT
Pressure induced phase transition in MnTe2
✍ H. FjellvΓ₯g; A. Kjekshus; T. Chattopadhyay; H.D. Hochheimer; W. HΓΆnle; H.G. Von πŸ“‚ Article πŸ“… 1985 πŸ› Elsevier Science 🌐 English βš– 198 KB
Pressure-induced phase transition in Sb2
Pressure-induced phase transition in Sb2Te3
✍ N. Sakai; T. Kajiwara; K. Takemura; S. Minomura; Y. Fujii πŸ“‚ Article πŸ“… 1981 πŸ› Elsevier Science 🌐 English βš– 215 KB
Pressure-induced phase transition in tet
Pressure-induced phase transition in tetracene crystals
✍ J. Kalinowski; J. Godlewski; R. Jankowiak πŸ“‚ Article πŸ“… 1976 πŸ› Elsevier Science 🌐 English βš– 309 KB

The magnetic field dcpcndcncc of the fluorescence of tctraccnc single crystals has been measured at hi& pressures of up to a 5 kbar. A discontinuous change in the spatial anisotropy of this magnetic field effect occurs ne;Lr 3 kbar signifying the occurrcncc of a phase transition.