Effect of solvent polarity on the aggregation of C60

被引:82
作者
Nath, S [1 ]
Pal, H [1 ]
Sapre, AV [1 ]
机构
[1] Bhabha Atom Res Ctr, Radiat Chem & Chem Dynam Div, Chem Grp, Bombay 400085, Maharashtra, India
关键词
D O I
10.1016/S0009-2614(00)00863-0
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
C-60 forms aggregates in solution when the dielectric constant of the solvents exceeds some critical value viz. greater than or equal to 13. Further, for aggregation the C-60 concentration has to exceed some critical value. The aggregation process is reversible and the aggregates exist in equilibrium with monomers. Picosecond laser flash photolysis experiments indicate that the excited (S-1) aggregates undergo very fast relaxation without contributing towards the tripler formation. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:143 / 148
页数:6
相关论文
共 21 条
[1]   Photoluminescence of confined excitons in nanoscale C60 clusters [J].
Ahn, JS ;
Suzuki, K ;
Iwasa, Y ;
Otsuka, N ;
Mitani, T .
JOURNAL OF LUMINESCENCE, 1998, 76-7 :201-205
[2]   DETERMINATION OF TRIPLET QUANTUM YIELDS BY LASER FLASH ABSORPTION SPECTROSCOPY [J].
AMAND, B ;
BENSASSON, R .
CHEMICAL PHYSICS LETTERS, 1975, 34 (01) :44-48
[3]   C60 IN MODEL BIOLOGICAL-SYSTEMS - A VISIBLE-UV ABSORPTION STUDY OF SOLVENT-DEPENDENT PARAMETERS AND SOLUTE AGGREGATION [J].
BENSASSON, RV ;
BIENVENUE, E ;
DELLINGER, M ;
LEACH, S ;
SETA, P .
JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (13) :3492-3500
[4]   CLUSTER ORIGIN OF FULLERENE SOLUBILITY [J].
BEZMELNITSIN, VN ;
ELETSKII, AV ;
STEPANOV, EV .
JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (27) :6665-6667
[5]  
Bu''nau G. v., 1970, RANG DALESPHARMACOLO, V74, P1294, DOI [10.1002/bbpc.19700741223, DOI 10.1002/BBPC.19700741223]
[6]   SOLVENT EFFECTS ON THE ELECTRONIC-SPECTRUM OF C-60 [J].
GALLAGHER, SH ;
ARMSTRONG, RS ;
LAY, PA ;
REED, CA .
JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (16) :5817-5825
[7]   Aggregation of C-7O in solvent mixtures [J].
Ghosh, HN ;
Sapre, AV ;
Mittal, JP .
JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (22) :9439-9443
[8]  
HIRATA Y, 1983, J PHYS CHEM-US, V87, P1662
[9]   INCORPORATION OF C-60 INTO ARTIFICIAL LIPID-MEMBRANES [J].
HUNGERBUHLER, H ;
GULDI, DM ;
ASMUS, KD .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (08) :3386-3387
[10]   [60]fullerene and three [60]fullerene derivatives in membrane model environments [J].
Janot, JM ;
Bienvenüe, E ;
Seta, P ;
Bensasson, RV ;
Tomé, AC ;
Enes, RF ;
Cavaleiro, JAS ;
Leach, S ;
Camps, X ;
Hirsch, A .
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 2000, (02) :301-306