Professor
B.S. 1950, Trinity Coll., Ph.D. 1955, M.I.T.

Physical Chemistry
Vibrational spectra and spin resonance spectra; molecular spectra and structure.

Department of Chemistry, 701A LGRT
University of Massachusetts
710 North Pleasant Street
Amherst, MA 01003-9336

office: 168 Goessmann Laboratory
tel: 413-545-0048 fax: 413-545-4490

stidham@chem.umass.edu

Principal Research Interests

Spin resonance spectra, vibrational spectra and statistical mechanics are my main research interests. My current interests are divided between computational and spectroscopic studies of small flexible molecules, mainy using ab initio calculations as an aid to study Raman and infrared spectra, leading to conformational stabilities, barriers to internal rotation and assignments of fundamentals.

Representative Publications

“Vibrational Spectrum, ab initio Calculations, Conformational Stabilities and Assignment of Fundamentals of the Ci Conformer of 1,4-Dichlorobutane,” A.J. LaPlante and H.D. Stidham, accepted Spectrochimca Acta Part A, December 3, 2007.

“Vibrational Spectrum, ab initio Calculations, Conformational Equilibria and Torsional Modes of 1,3-Debromopropane,” M.S. Nalewanski, Y.P. Tambouret, S.T. Lentini, H.D. Stidham and G.A. Guirgis, Spectrochim. Acta Part A 61, 1547-1557 (2005).

“Vibrational Spectrum, ab initio Calculations, Conformational Equilibria and Torsional Modes of 1,3-Debromopropane,” D.J. Duffy, J. Quenneville, T.M. Baumbaugh, S.A. Kitchener, R.K. McCormick, C.N. Dormady, T.A. Croce, A. Navabi, H.D. Stidham, S.L. Hsu, G.A. Guirgis, S. Deng and J.R. Durig, Spectrochim. Acta Part A 60, 659-671 (2004).

“Conformational Stability from Variable Temperature Infrared Spectra of Krypton Solutions, ab initio Calculations, Vibrational Assignment, and r0 Structural Parameters of 1,3-Difluoropropane,” J.R. Durig, C. Zheng, M.J. Williams, H.D. Stidham and G.A. Guirgis, Spectrochim. Acta Part A 60, 1659-1676 (2004).

“Raman and Infrared Spectra, Conformational Stability, ab initio Calculations and Assignment of Fundamentals for 1-Bromo-3-Fluoropropane,” H. Stidham, D. J. Duffy, S. L. Hsu, G. A. Guirgis and J. R. Durig, Spectrochim Acta Part A 57, 1567-1586 (2001).

“Vibrational Spectrum, ab initio Calculations, Assignment of Fundamentals, Barrier to Internal Rotation and Stabilities of Conformers of 1,2-Dichloropropane,” G.A. Guirgis, Y.D. Hsu, A.C. Vlaservich, H.D. Stidham and J.R. Durig, J. Mol. Struct. 378, 83-102 (1996).

“Infrared and Raman Spectra, Conformational Stability, Barrier to Internal Rotation, and ab initio Calculations of 1,1-Dichloropropane,” T.A. Mohamed, H.D. Stidham, G.A. Guirgis, MS. Afifi and J.R. Durig, J. Mol. Struct. 299, 111-140 (1993).