New magnetic field effects observed in micellar and fluid solutions under ultrahigh fields of up to 30 T

被引:4
作者
Hayashi, H [1 ]
Sakaguchi, Y [1 ]
Wakasa, M [1 ]
Mori, Y [1 ]
Nishizawa, K [1 ]
机构
[1] Inst Phys & Chem Res, Mol Photochem Lab, Wako, Saitama 3510198, Japan
关键词
D O I
10.1007/BF03162145
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
With magnetic fields of up to 30 T, we have found the saturation and reversion of magnetic field effects (MFEs) on radical pair lifetimes and escape radical yields due to the relaxation mechanism for the photoreduction of carbonyl compounds in micellar solutions as well as the saturation of MFEs on the escape radical yield due to the Delta g mechanism for the photoreduction of 4-methoxy-benzophenone with thiophenol in fluid solutions. We have also found large MFEs for several reactions involving three odd electrons in fluid solutions.
引用
收藏
页码:307 / 319
页数:13
相关论文
共 13 条
[1]  
[Anonymous], 1998, DYNAMIC SPIN CHEM
[2]   THEORETICAL-STUDY OF RELAXATION MECHANISM IN MAGNETIC-FIELD EFFECTS ON CHEMICAL-REACTIONS [J].
HAYASHI, H ;
NAGAKURA, S .
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1984, 57 (02) :322-328
[3]   Magnetic field effects on the photoinduced electron transfer of 10-methylphenothiazine with 4-(4-cyanobenzoyloxy) TEMPO in fluid solutions [J].
Mori, Y ;
Sakaguchi, Y ;
Hayashi, H .
CHEMICAL PHYSICS LETTERS, 1998, 286 (5-6) :446-451
[4]   Magnetic-field effects on reactions of triradicals generated by photolysis of benzophenone-diphenylmethane-nitroxide trifunctional compounds [J].
Mori, Y ;
Sakaguchi, Y ;
Hayashi, H .
CHEMICAL PHYSICS LETTERS, 1999, 301 (3-4) :365-371
[5]  
Muus L.T., 1977, CHEM INDUCED MAGNETI
[6]   A laser flash photolysis study of the effects of ultrahigh magnetic fields up to 29.6T on dynamic behavior of radical pairs in micellar solutions [J].
Nishizawa, K ;
Sakaguchi, Y ;
Hayashi, H ;
Abe, H ;
Kido, G .
CHEMICAL PHYSICS LETTERS, 1997, 267 (5-6) :501-506
[7]   INFLUENCE OF LARGE MAGNETIC-FIELDS ON THE DYNAMIC BEHAVIOR OF A RADICAL PAIR PRODUCED BY PHOTOREDUCTION OF BENZOPHENONE IN A MICELLAR SOLUTION [J].
SAKAGUCHI, Y ;
HAYASHI, H .
CHEMISTRY LETTERS, 1993, (07) :1183-1186
[8]   LASER-PHOTOLYSIS STUDY OF THE PHOTOCHEMICAL PROCESSES OF CARBONYL-COMPOUNDS IN MICELLES UNDER HIGH MAGNETIC-FIELDS [J].
SAKAGUCHI, Y ;
HAYASHI, H .
CHEMICAL PHYSICS LETTERS, 1982, 87 (06) :539-543
[9]   LASER-PHOTOLYSIS STUDY OF THE EXTERNAL MAGNETIC-FIELD EFFECT UPON THE PHOTOCHEMICAL PROCESSES OF CARBONYL-COMPOUNDS IN MICELLES [J].
SAKAGUCHI, Y ;
HAYASHI, H ;
NAGAKURA, S .
JOURNAL OF PHYSICAL CHEMISTRY, 1982, 86 (16) :3177-3184
[10]   RECOMBINATION OF RADICAL PAIRS IN HIGH MAGNETIC-FIELDS - PATH INTEGRAL-MONTE-CARLO TREATMENT [J].
SCHULTEN, K ;
EPSTEIN, IR .
JOURNAL OF CHEMICAL PHYSICS, 1979, 71 (01) :309-316