Structure and dynamics of octamethyl-ethinyl-ferrocene: an organometallic 
rotator phase

Asthalter, T.; Franz, H.; van Bürck, U.; Messel, K.; Schreier, E.; Dinnebier, R. E.

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Structure and dynamics of octamethyl-ethinyl-ferrocene: an organometallic rotator phase

MPS-Authors

/persons/resource/persons135493

Dinnebier, R. E.
Scientific Facility X-Ray Diffraction (Robert E. Dinnebier), Max Planck Institute for Solid State Research, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Asthalter, T., Franz, H., van Bürck, U., Messel, K., Schreier, E., & Dinnebier, R. E. (2003). Structure and dynamics of octamethyl-ethinyl-ferrocene: an organometallic rotator phase. Journal of Physics and Chemistry of Solids, 64(4), 677-684.

Cite as: https://hdl.handle.net/21.11116/0000-000E-EA63-B

Abstract

The onset of dynamics and the structural changes of octamethyl-
ethinyl-ferrocene around a solid-solid phase transition at 248
K have been investigated using the novel technique of
quasielastic nuclear forward scattering (QNFS) in a temperature
range between 61 and 257 K at a photon energy of 14.413 keV, as
well as X-ray powder diffraction at various energies. A
pronounced hysteresis for both the dynamical and the structural
properties is observed and confirmed by differential-scanning
calorimetry. We assign the observed phenomena to a first-order
transition from a low-symmetry low-temperature phase to a high-
symmetry high-temperature plastically crystalline phase with
nearly cubic symmetry. Possible mechanisms for this transition
are discussed in the light of our results. (C) 2003 Elsevier
Science Ltd. All rights reserved.