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Durham University

Institute of Medieval and Early Modern Studies (IMEMS)

Staff and Governance

Core Staff

The day-to-day running of IMEMS is the responsibility of the Core Executive Committee, comprising the Director and Associate Directors and the Administrator. 

Publication details for Prof. Andrew Beeby

S.J. Greaves, E.L. Flynn, E.L. Futcher, E. Wrede, D. Lydon, P.J. Low, S. Rutter & A. Beeby (2006). Cavity ring-down spectroscopy of the torsional motions of 1,4-bis(phenylethynyl)benzene. Journal of Physical Chemistry A 110(6): 2114-2121.

Author(s) from Durham


The torsional motions of jet-cooled 1,4-bis(phenylethynyl)benzene (BPEB), a prototype molecular wire, were
studied using cavity ring-down spectroscopy in the first UV absorption band (316-321 nm). The torsional
spectrum of 1,4-bis(phenylethynyl)-2,3,5,6-tetradeuteriobenzene was also recorded in the gas phase. Both
spectra were successfully simulated using simple cosine potentials to describe the torsional motions. The
ground-state barrier to rotation was estimated to be 220-235 cm-1, which is similar to that of diphenylacetylene
(tolane). Complementary DFT calculations were found to overestimate the torsional barrier.

Full Executive Committee

Our Full Executive Committee is made up of the Core Executive Committee, listed above, plus a number of executive members including:

International Advisory Board

We are extremely fortunate to have be able to call on the help and guidance of colleagues from around the world who help to shape and guide our direction, strategy and international reach. Our current Advisory Board members are: