Study of electron donor-acceptor complexes of tri-n-octyl amine with [60]- and [70]fullerenes and some other electron acceptors by absorption spectrophotometric method.
Electron donor-acceptor (EDA) complexes of tri-n-octylamine (TOA) with [60]- and [70]fullerenes and some other electron acceptors have been studied in chloroform medium by absorption spectrophotometric technique. Charge transfer (CT) absorption bands are observed in the visible region. Vertical ionization potential of TOA was determined utilizing CT transition energy. Oscillator strengths, transition dipole strengths and resonance energies for all the complexes have been calculated. [60]Fullerene/TOA and [70]fullerene/TOA complexes are found to decay slowly with time. Kinetics of these reactions have been studied and activation energies for such processes have been estimated. Ab initio calculations suggest that complexation of [70]fullerene with TOA is enthalpy favoured.
Bhattacharya
Sumanta
S
Department of Chemistry, The University of Burdwan, Golapbag, Burdwan 713104, India. sum_9974@rediffmail.com
Chattopadhyay
Subrata
S
Laskar
Subrata
S
Banerjee
Manas
M
D000042:Absorption; D000588:Amines / Q000737:chemistry*; D004579:Electron Transport; D004583:Electrons; D037741:Fullerenes / Q000737:chemistry*; D007700:Kinetics; D013053:Spectrophotometry; D013997:Time Factors
D000588:Amines; D037741:Fullerenes; C008699:octylamine