Title of article :
Water-soluble (η6-arene)ruthenium(II)-phosphine complexes and their catalytic activity in the hydrogenation of bicarbonate in aqueous solution
Author/Authors :
Henrietta Horv?th، نويسنده , , Gabor Laurenczy، نويسنده , , ?gnes Kath?، نويسنده ,
Issue Information :
دوفصلنامه با شماره پیاپی سال 2004
Pages :
10
From page :
1036
To page :
1045
Abstract :
The reactions of [(η6-C6H6)RuCl2]2 and [(η6-p-cymene)RuCl2]2 with hydrogen in the presence of the water-soluble phosphines tppts (meta-trisulfonated triphenylphosphine) and pta (1,3,5-triaza-7-phosphaadamantane) afforded as the main species [(η6-C6H6)RuH(tppts)2]+, [(η6-C6H6)RuH(pta)2]+, [(η6-p-cymene)RuH(tppts)2]+ and [(η6-p-cymene)RuH(pta)2]+. This latter complex was also formed in the reaction of [(η6-p-cymene)RuCl2(pta)] and hydrogen with a redistribution of pta. In addition, prolonged hydrogenation at elevated temperatures and in the presence of excess of pta led to the formation of the arene-free [RuH(pta)4Cl], [RuH(pta)4(H2O)]+, [RuH2(pta)4] and [RuH(pta)5]+ complexes. Ru-hydrides, such as [(η6-arene)RuH(L)2]+, catalyzed the hydrogenation of bicarbonate to formate in aqueous solutions at p(H2)=100 bar, T=50–70 °C.
Keywords :
(Arene)ruthenium complexes , Carbon dioxide , Hydrogenation , Water-soluble phosphines
Journal title :
Journal of Organometallic Chemistry
Serial Year :
2004
Journal title :
Journal of Organometallic Chemistry
Record number :
1376741
Link To Document :
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