FULLERENE CAGES BREAKDOWN INDUCED IN SOLUTION BY ULTRAVIOLET-RADIATION - EXPERIMENTAL SUPPORT FOR THE WINDOW FORMATION IN FULLERENES

被引:9
作者
JUHA, L
HAMPLOVA, V
ENGST, P
KUBAT, P
KOUDOUMAS, E
COURIS, S
机构
[1] ACAD SCI CZECH REPUBL,J HEYROVSKY INST PHYS CHEM & ELECTROCHEM,CR-18223 PRAGUE 8,CZECH REPUBLIC
[2] FDN RES & TECHNOL HELLAS,INST ELECTR STRUCT & LASER,GR-71110 IRAKLION,GREECE
关键词
D O I
10.1021/j100020a050
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
Experimental results of excimer laser-induced photolysis of fullerene C-60 in solution are presented and are found in good agreement with recent ab-initio calculations, which confirm the relatively low energy demand for opening the fullerene carbon cages in their triplet excited states, Different quantum yields of photolysis show that a single photon of an ArF laser or two photons of KrF/XeCl lasers could be sufficient for opening the fullerene cage. The reaction of the opened C-60 With solvent impurities or products of previous decompositions seems more likely than its oxidation by singlet oxygen or than multiphoton decomposition.
引用
收藏
页码:8200 / 8201
页数:2
相关论文
共 14 条
[1]   PROBING C-60 [J].
CURL, RF ;
SMALLEY, RE .
SCIENCE, 1988, 242 (4881) :1017-1022
[2]   C-60 INTERACTIONS WITH SURFACES, GASEOUS SPECIES AND PHOTONS - AN OVERVIEW [J].
GRUEN, DM .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1993, 78 (1-4) :118-125
[3]   FAST DEGRADATION OF FULLERENES BY ULTRAVIOLET-LASER RADIATION [J].
JUHA, L ;
KRASA, J ;
LASKA, L ;
HAMPLOVA, V ;
SOUKUP, L ;
ENGST, P ;
KUBAT, P .
APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, 1993, 57 (01) :83-84
[4]   REACTIVITY OF FULLERENES WITH CHEMICALLY GENERATED SINGLET-OXYGEN [J].
JUHA, L ;
HAMPLOVA, V ;
KODYMOVA, J ;
SPALEK, O .
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1994, (21) :2437-2438
[5]   THEORETICAL EVIDENCE FOR A C-60 WINDOW MECHANISM [J].
MURRY, RL ;
SCUSERIA, GE .
SCIENCE, 1994, 263 (5148) :791-793
[6]   ROLE OF SP(3) CARBON AND 7-MEMBERED RINGS IN FULLERENE ANNEALING AND FRAGMENTATION [J].
MURRY, RL ;
STROUT, DL ;
ODOM, GK ;
SCUSERIA, GE .
NATURE, 1993, 366 (6456) :665-667
[7]   PHOTOPHYSICS OF BUCKMINSTERFULLERENE AND OTHER CARBON CLUSTER IONS [J].
OBRIEN, SC ;
HEATH, JR ;
CURL, RF ;
SMALLEY, RE .
JOURNAL OF CHEMICAL PHYSICS, 1988, 88 (01) :220-230
[8]   STABLE COMPOUNDS OF HELIUM AND NEON - HE-AT-THE-COST-OF-C60 AND NE-AT-THE-COST-OF-C60 [J].
SAUNDERS, M ;
JIMENEZVAZQUEZ, HA ;
CROSS, RJ ;
POREDA, RJ .
SCIENCE, 1993, 259 (5100) :1428-1430
[9]   COLLISIONAL ENERGY-DEPENDENCE OF HE CAPTURE BY INTERNALLY EXCITED C-60 ANIONS [J].
SPRANG, H ;
MAHLKOW, A ;
CAMPBELL, EEB .
CHEMICAL PHYSICS LETTERS, 1994, 227 (1-2) :91-97
[10]   FULLERENE STRUCTURES AND REACTIONS - MNDO CALCULATIONS [J].
STANTON, RE .
JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (01) :111-118