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JESSICA A. THOMAS, JUSTIN W. YOUNG, ADAM J. FLEISHER, CASEY L. CLEMENTS AND DAVID W. PRATT, Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260; LEONARDO ALVAREZ-VALTIERRA, Division de Ciencias e Ingenierias, Campus Leon, Universidad de Guanajuato, Leon, Gto. 37150, Mexico.
1-Phenylpyrrole has been identified by several authors as a molecule that displays twisted intramolecular charge-transfer (TICT) character in the condensed phase. However, Suzuka and coworkers , using single vibronic level dispersed fluorescence, observed no evidence of TICT activity in the gas phase. In this work, 1-phenylpyrrole is studied by the high resolution methods previously applied to DMABN to determine the extent of its motion along different possible TICT coordinates when it absorbs light.