Spectrophotometric studies of complexation of C60 with aromatic hydrocarbons.
The equilibrium constants for complexation of C60 with naphthalene, phenanthrene and pyrene in toluene have been determined by UV visible spectroscopy. The magnitude of the equilibrium constants was found to increase with decreasing ionization potential of the donor. Values for complexation enthalpy have been determined for the first time for C60/aromatic hydrocarbons. Well-defined charge transfer (C-T) bands have been observed for complexes of C60 with a variety of aromatic hydrocarbons, with C-T band maxima moving to higher frequency with increasing donor ionization potential.
Sibley
S P
SP
Chemistry Department, Goucher College, Baltimore, MD 21204, USA.
Nguyen
Y T
YT
Campbell
R L
RL
Silber
H B
HB
D002244:Carbon / Q000737:chemistry*; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D037741:Fullerenes; D015394:Molecular Structure; D009281:Naphthalenes / Q000737:chemistry; D010616:Phenanthrenes / Q000737:chemistry; D011084:Polycyclic Aromatic Hydrocarbons / Q000737:chemistry*; D011721:Pyrenes / Q000737:chemistry; D013053:Spectrophotometry; D013056:Spectrophotometry, Ultraviolet; D013696:Temperature; D013816:Thermodynamics
D037741:Fullerenes; D009281:Naphthalenes; D010616:Phenanthrenes; D011084:Polycyclic Aromatic Hydrocarbons; D011721:Pyrenes; C031721:naphthalene; C031181:phenanthrene; D002244:Carbon; C030984:pyrene; C069837:fullerene C60