KINETIC AND CHEMICAL EVIDENCE FOR THE PARTICIPATION OF MONONUCLEAR CATALYTIC SPECIES IN THE HOMOGENEOUS HYDROGENATION OF DIPHENYLACETYLENE PROMOTED BY AN EDGE-BRIDGED TRIRUTHENIUM CARBONYL CLUSTER COMPLEX

被引：17

作者：

CABEZA, JA

FERNANDEZCOLINAS, JM

LLAMAZARES, A

RIERA, V

机构：

[1] Departamento de Química Organometálica, Universidad de Oviedo

来源：

ORGANOMETALLICS | 1992年 / 11卷 / 12期

关键词：

D O I：

10.1021/om00060a066

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The edge-bridged cluster complex [Ru3(mu-H)(mu-C8H11N2)(CO)9] (1) (C8H12N2 = 1,2-diamino-4,5-dimethylbenzene) is a catalyst precursor for the selective homogeneous hydrogenation of diphenylacetylene to stilbene under very mild conditions. The binuclear ruthenium(I) akenyl derivative [Ru2(mu-C8H11N2)(mu-eta1,eta2-PhC= C(H)PhXCO)5] (2). which has been observed during the catalytic reaction, has been isolated from the reaction of 1 with diphenylacetylene; however, 2 does not react with hydrogen. These results, coupled to a kinetic study of the catalytic reaction, which follows the rate law -d[H-2]/dt = K [1] (P(H-2)), where K = 9.18 X 1 0(-3) atm-2 s-1 at 333 K, suggest that the catalytic species is mononuclear.

引用

收藏

页码：4355 / 4358

页数：4

相关论文

共 18 条

[1] THE DIFFERENT REACTIVITY OF 2-AMINOPYRIDINES AND 2-PYRIDONE WITH [RU3(CO)12] - X-RAY CRYSTAL-STRUCTURE OF [RU3(MU-H)(MU-3-ANPY)(CO)9](HANPY = 2-ANILINOPYRIDINE) [J].

ANDREU, PL ;

CABEZA, JA ;

RIERA, V ;

JEANNIN, Y ;

MIGUEL, D .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1990, (07) :2201-2206

[2] IMPROVED SYNTHESIS, SOLUTION AND SOLID-STATE STRUCTURE, AND REACTIVITY OF [RU2(MU-SEPH)2(CO)6] [J].

ANDREU, PL ;

CABEZA, JA ;

MIGUEL, D ;

RIERA, V ;

VILLA, MA ;

GARCIAGRANDA, S .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1991, (03) :533-536

[3] REACTION OF RU3 (MU-H,MU-O=CNME2)(CO)10 OS3(MU-H,MU-O=CNME2)(CO)10 WITH BUT-2-YNE - CRYSTAL AND MOLECULAR-STRUCTURES OF RU3 (ETA-3-CH2CHC(H)CH3)(MU-(CO),MU-O=CNME2)(CO)8 OS3(ETA-3-CH2CHC(H)CH3)(MU-(CO),MU-O=CNME2)(CO)8 AND RU2(MU-O=CCME=CME(ETA-2-CME=CHME)-(MU-O=CNME2)(CO)5 [J].

BOAG, NM ;

SIEBER, WJ ;

KAMPE, CE ;

KNOBLER, CB ;

KAESZ, HD .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1988, 355 (1-3) :385-400

[4] HYDROGENATION ACTIVITY OF [RU3(MU-H)-(MU-3-AMPY)(CO)9] UNDER HOMOGENEOUS CONDITIONS (HAMPY = 2-AMINO-6-METHYLPYRIDINE) [J].

CABEZA, JA ;

FERNANDEZCOLINAS, JM ;

LLAMAZARES, A ;

RIERA, V .

JOURNAL OF MOLECULAR CATALYSIS, 1992, 71 (02) :L7-L11

[5] PHOSPHORUS-BRIDGED METAL-CLUSTERS IN HOMOGENEOUS CATALYSIS .5. SELECTIVE HYDROGENATION OF DIPHENYLACETYLENE AND ISOMERIZATION OF CIS-STILBENE IN THE PRESENCE OF MU-3-PHOSPHINIDENE-BRIDGED IRON AND RUTHENIUM CLUSTERS [J].

CASTIGLIONI, M ;

GIORDANO, R ;

SAPPA, E .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1991, 407 (03) :377-389

[6]

CBEZA JA, 1989, J ORGANOMET CHEM, V376, pC23

[7]

GLADFELTER WL, 1990, CHEM METAL CLUSTER C, P329

[8]

HAINES RJ, 1989, J ORGANOMET CHEM, V362, P399

[9] A NEW TYPE OF UNSATURATED TRIANGULO TRANSITION-METAL CLUSTER AND HOMOGENEOUS CATALYST [J].

HAUPT, HJ ;

BALSAA, P ;

FLORKE, U .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1988, 27 (02) :263-264

[10] SUBSTITUTION BY PHOSPHORUS LIGANDS ON EDGE-DOUBLE-BRIDGED TRIRUTHENIUM CARBONYL-COMPLEXES AND ON RU2(MU-O=C(ET))2(CO)6 - C-13 NMR CHARACTERIZATION [J].

KAMPE, CE ;

KAESZ, HD .

INORGANIC CHEMISTRY, 1984, 23 (26) :4646-4653