Effect of temperature on symmetry breaking excited state charge separation: restoration of symmetry at elevated temperature.
With an increase in temperature, an unprecedented restoration of symmetry in the symmetry breaking excited state charge transfer is observed in a geminal pair of near-orthogonally connected perylenimide dimers. Such restoration of symmetry could be attributed to the interchromophoric planarization and/or loss of solvation asymmetry at elevated temperature resulting in enhanced fluorescence quantum yield.
School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM), CET Campus, Sreekaryam, Thiruvananthapuram, Kerala, India695016.
Hitesh
H
Khandelwal
Ajith R
AR
Mallia
Rijo T
RT
Cheriya
Mahesh
M
Hariharan
D019281:Dimerization; D007094:Imides / Q000138:chemical synthesis / Q000737:chemistry*; D010569:Perylene / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry; D013696:Temperature
D007094:Imides; C532868:perylenemonoimide; D010569:Perylene