Decomposition of electron-excited molecules of molybdenum and tungsten phosphine hydride and phosphine nitrogen complexes

被引:2
作者
Pivovarov, A. P. [1 ]
机构
[1] Russian Acad Sci, Inst Problem Chem Phys, Chernogolovka 142432, Moscow Region, Russia
关键词
coordination compounds; photochemistry; primary mechanism of photode-composition; activation and fixation of small molecules;
D O I
10.1007/s11172-008-0044-5
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The kinetics and mechanism of photodehydrogenation of the phosphine hydride complexes MH(4)L(4) (M = Mo, W; L are phosphine ligands) and the formation of coordinatively unsaturated species M(L4) were studied by the absorbance of long-wavelength bands with lambda(max) at 450-460 nm appeared in the absorption spectra of the photoproducts. The rate constants of the reactions of the coordinatively unsaturated M(DPPE)(2) species (M = Mo, W; DPPE = Ph(2)PCH(2)CH(2)PPh(2)) with molecular nitrogen in benzene were determined (k (W) = 200 s(-1), k (Mo) = 8700 s(-1)).
引用
收藏
页码:289 / 291
页数:3
相关论文
共 10 条
[1]   Photochemical interaction of molybdenum and tungsten phosphine hydride complexes with carbon dioxide [J].
Gak, YV ;
Pivovarov, AP .
RUSSIAN CHEMICAL BULLETIN, 1996, 45 (09) :2207-2209
[2]   A NEW SENSITIVE CHEMICAL ACTINOMETER .2. POTASSIUM FERRIOXALATE AS A STANDARD CHEMICAL ACTINOMETER [J].
HATCHARD, CG ;
PARKER, CA .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1956, 235 (1203) :518-536
[3]   REDOX REACTIONS IN MICELLAR SYSTEMS .4. EOSIN-PHOTOSENSITIZED REDUCTION OF METHYLVIOLOGEN [J].
NADTOCHENKO, VA ;
RUBTSOV, IV ;
DZHABIEV, TS .
BULLETIN OF THE ACADEMY OF SCIENCES OF THE USSR DIVISION OF CHEMICAL SCIENCE, 1985, 34 (06) :1182-1185
[4]  
Pivovarov A. P., 1981, IAN SSSR KH, P1207
[5]   PHOTOCHEMICAL INTERACTION OF PHOSPHINE HYDRIDE COMPLEXES OF MOLYBDENUM AND TUNGSTEN WITH BENZENE AND CYCLOHEXANE [J].
PIVOVAROV, AP ;
IOFFE, LM ;
GAK, YV ;
BORODKO, YG .
BULLETIN OF THE ACADEMY OF SCIENCES OF THE USSR DIVISION OF CHEMICAL SCIENCE, 1984, 33 (04) :700-702
[6]   PHOTOCHEMICAL INTERACTION OF PHOSPHINE HYDRIDE COMPLEXES OF MOLYBDENUM AND TUNGSTEN WITH CARBON-MONOXIDE [J].
PIVOVAROV, AP ;
GAK, YV ;
IOFFE, LM ;
BORISOV, AP ;
MAKHAEV, VD .
BULLETIN OF THE ACADEMY OF SCIENCES OF THE USSR DIVISION OF CHEMICAL SCIENCE, 1983, 32 (06) :1163-1167
[7]   Photochemical reduction of carbon dioxide to formate in the coordination sphere of MoH4(Ph(2)PCH(2)CH(2)PPh(2))(2) [J].
Pivovarov, AP .
RUSSIAN CHEMICAL BULLETIN, 1995, 44 (10) :1963-1965
[8]  
PIVOVAROV AP, 1981, IAN SSSR KH, P918
[9]  
PIVOVAROV AP, 1979, IAN SSSR KH, P2590
[10]  
THOMAS RGW, 1978, INORG CHIM ACTA, V30, P353