Ultrafast reductive elimination of hydrogen from a metal carbonyl dihydride complex; a study by time-resolved IR and visible spectroscopy

被引:33
作者
Colombo, M
George, MW
Moore, JN
Pattison, DI
Perutz, RN
Virrels, IG
Ye, TQ
机构
[1] UNIV YORK,DEPT CHEM,YORK YO1 5DD,N YORKSHIRE,ENGLAND
[2] UNIV NOTTINGHAM,DEPT CHEM,NOTTINGHAM NG7 2RD,ENGLAND
来源
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1997年 / 17期
关键词
D O I
10.1039/a704484d
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Laser flash photolysis of [Ru(PPh3)(3)(CO)(H)(2)] 1 in benzene solution yielded transient [Ru(PPh3)(3)(CO)] which was observed by both microsecond UV/VIS and IR spectroscopy [lambda(max) = 380 nm, v(CO) = 1845 cm(-1)] and reacted with H-2 to reform 1 [k(2) = (8.4 +/- 0.4) x 10(7) dm(3) mol(-1) s(-1)]; photolysis of 1 with an ultrafast laser equipped with IR detection demonstrates that reductive elimination of H-2 and formation of [Ru(PPh3)(3)(CO)] is complete within 6 ps.
引用
收藏
页码:2857 / 2859
页数:3
相关论文
共 34 条
[21]   VIBRATIONAL-RELAXATION OF M(CO)6 (M=CR, MO, W) - EFFECT OF METAL MASS ON VIBRATIONAL COOLING DYNAMICS AND NON-BOLTZMANN INTERNAL ENERGY-DISTRIBUTIONS [J].
KING, JC ;
ZHANG, JZ ;
SCHWARTZ, BJ ;
HARRIS, CB .
JOURNAL OF CHEMICAL PHYSICS, 1993, 99 (10) :7595-7601
[22]   ULTRAFAST STUDIES OF TRANSITION-METAL CARBONYL REACTIONS IN THE CONDENSED PHASE - SOLVATION OF COORDINATIVELY UNSATURATED PENTACARBONYLS [J].
LEE, M ;
HARRIS, CB .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1989, 111 (24) :8963-8965
[23]   MATRIX PHOTOCHEMISTRY OF RU(CO)(2)(PME(3))(2)H-2 AND RU(CO)(3)(PME(3))(2) - FORMATION OF RU(CO)(2)(PME(3))(2)CENTER-DOT-CENTER-DOT-CENTER-DOT-S (S=AR, CH4, XE) [J].
MAWBY, RJ ;
PERUTZ, RN ;
WHITTLESEY, MK .
ORGANOMETALLICS, 1995, 14 (07) :3268-3274
[24]   FORMALDEHYDE PHOTOCHEMISTRY [J].
MOORE, CB ;
WEISSHAAR, JC .
ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 1983, 34 :525-555
[25]   PICOSECOND PHOTOLYSIS OF A METAL DIHYDRIDE - RAPID REDUCTIVE ELIMINATION OF DIHYDROGEN FROM RU(DMPE)(2)H-2 (DMPE=(CH3)(2)PCH2CH2P(CH3)(2)) [J].
OSMAN, R ;
PERUTZ, RN ;
ROONEY, AD ;
LANGLEY, AJ .
JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (14) :3562-3563
[26]   PULSED-LASER PHOTOLYSIS OF OS(PP(3))H-2 [PP(3)=P(CH2CH2PPH(2))(3)] - KINETIC SELECTIVITY FOR REACTION WITH METHANE [J].
OSMAN, R ;
PATTISON, DI ;
PERUTZ, RN ;
BIANCHINI, C ;
PERUZZINI, M .
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1994, (04) :513-514
[27]   PHOTOCHEMICAL GENERATION OF 16-ELECTRON [RH(ETA(5)-C5H5)-(PME(3))] AND [IR(ETA(5)-C5H5)(PME(3))] IN LOW-TEMPERATURE MATRICES - EVIDENCE FOR METHANE ACTIVATION [J].
PARTRIDGE, MG ;
MCCAMLEY, A ;
PERUTZ, RN .
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1994, (24) :3519-3526
[28]  
PERUTZ RN, 1993, CHEM SOC REV, P361
[29]   Ruthenium-catalyzed addition of aromatic esters at the ortho C-H bonds to olefins [J].
Sonoda, M ;
Kakiuchi, F ;
Kamatani, A ;
Chatani, N ;
Murai, S .
CHEMISTRY LETTERS, 1996, (02) :109-110
[30]   LIQUID XENON - AN EFFECTIVE INERT SOLVENT FOR C-H OXIDATIVE ADDITION-REACTIONS [J].
SPONSLER, MB ;
WEILLER, BH ;
STOUTLAND, PO ;
BERGMAN, RG .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1989, 111 (17) :6841-6843