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A Time-Resolved Infrared Vibrational Spectroscopic Study of the Photo-Dynamics of Crystalline Materials

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Abstract:

Time-resolved infrared vibrational spectroscopy is a structurally sensitive probe of the excited-state properties of matter. The technique has found many applications in the study of molecules in dilute solution phase but has rarely been applied to crystalline samples. We report on the use of a sensitive pump–probe time-resolved infrared spectrometer and sample handling techniques for studies of the ultrafast excited-state dynamics of crystalline materials. The charge transfer excited states of crystalline metal carbonyls and the proton transfer of dihydroxyquinones are presented and compared with the solution phase.

Keywords: CRYSTAL; INFRARED SPECTROSCOPY; IR SPECTROSCOPY; NANOSECOND MEASUREMENT; PICOSECOND MEASUREMENT; SOLIDS; TIME-RESOLVED SPECTROSCOPY; TRANSIENT; TRIR SPECTROSCOPY; ULTRAFAST MEASUREMENT; VIBRATIONAL

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/000370209787169902

Affiliations: 1: Central Laser Facility, Science & Technology Facilities Council, Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 OQX, United Kingdom 2: Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom 3: Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom; Synchrotron Radiation Source, Science & Technology Facilities Council, Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom 4: Synchrotron Radiation Source, Science & Technology Facilities Council, Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom

Publication date: January 1, 2009

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