Study of ground state EDA complex formation between [70]fullerene and a series of polynuclear aromatic hydrocarbons.
[70]fullerene has been shown to form 1:1 EDA complex with anthracene, naphthalene, phenanthrene, pyrene and acenaphthene in CCl4 medium. Charge transfer (CT) bands have been detected in all the cases. Isosbestic points have been observed in the cases of phenanthrene and acenaphthene complexes. Ionisation potentials of the donors and CT transition energies have been found to correlate in accordance with Mulliken equation and from this correlation the electron affinity of C70 has been found to be 2.59 eV. Enthalpies and entropies of formation of the complexes have been estimated from the formation constants of the complexes determined spectrophotometrically at three different temperatures.
Bhattacharya
Sumanta
S
Department of Chemistry, The University of Burdwan, Golapbag, India.
Nayak
Sandip K
SK
Chattopadhyay
Subrata
S
Banerjee
Manas
M
Mukherjee
Asok K
AK
D002244:Carbon / Q000737:chemistry*; D037741:Fullerenes; D011084:Polycyclic Aromatic Hydrocarbons / Q000737:chemistry*; D013057:Spectrum Analysis; D013696:Temperature
D037741:Fullerenes; D011084:Polycyclic Aromatic Hydrocarbons; C069836:fullerene C70; D002244:Carbon