NMR spectrometric studies of complexation of [60]fullerene with series of meso-tetraphenylporphyrins.
Extensive 1H NMR spectrometric studies have been done to gain information on the nature of molecular interactions of the supramolecular complexes of [60]fullerene with a series of meso-tetraphenylporphyrins, namely, meso-5,10,15,20-tetraphenylporphyrin (1), meso-5,10,15,20-tetra-2-bromophenyl-porphyrin (2) and meso-5,10,15,20-tetra-2-chlorophenyl-porphyrin (3) in toluene medium. [60]Fullerene has been shown to form 1:1 adducts with the above series of meso-tetraphenylporphyrins. Formation constants (K) for all the complexes have been determined from the systematic variation of the NMR chemical shifts of beta proton of the porphyrin in presence of [60]fullerene. It has been observed that 3 acts as a better donor in forming supramolecular complex with [60]fullerene.
Bhattacharya
Sumanta
S
Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, West Bengal 713104, India. sum_9974@rediffmail.com
Nayak
Sandip K
SK
Chattopadhyay
Subrata
S
Banerjee
Manas
M
D037741:Fullerenes / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008956:Models, Chemical; D008958:Models, Molecular; D015394:Molecular Structure; D011166:Porphyrins / Q000737:chemistry*; D011522:Protons; D013329:Structure-Activity Relationship; D014050:Toluene / Q000737:chemistry
D037741:Fullerenes; D011166:Porphyrins; D011522:Protons; C409084:tetraphenylporphyrin; D014050:Toluene