The photodissociation of oxalyl chloride and 2,3 butanedione at 193nm and 248nm have been studied by Time resolved FTIR emission spectroscopy. The IR fluorescence emission was observed and the rotational and vibration...The photodissociation of oxalyl chloride and 2,3 butanedione at 193nm and 248nm have been studied by Time resolved FTIR emission spectroscopy. The IR fluorescence emission was observed and the rotational and vibrational populations of the CO product were obtained. It is suggested that the photolysis mechanism is two RCO radicals formed via a fission of C-C bond, followed by a decomposition of the RCO intermediate to vibrationally excited CO( v ) and R radical.展开更多
The catalytic behaviours of Ruthenium comlex RhC12(TPPTS) 3 as catalyst precursor for the selective hydrogenation of Carbon-crbon double bond in methylvinylketone were studied in biphasic system (aqueous/ cyclohexane ...The catalytic behaviours of Ruthenium comlex RhC12(TPPTS) 3 as catalyst precursor for the selective hydrogenation of Carbon-crbon double bond in methylvinylketone were studied in biphasic system (aqueous/ cyclohexane ). When the hydrogenation was carried out under the following condition: [Ru] = 2 × 10-3mol/L [TPPTS]/[Ru]=3, 2. 0MPa, H2O: 10mL, cyclohexane: 5mL, subettate: 25mmol,stiring speed: 600r/min, the conversion reached 70.13 % and the selectivity for the hydrosenation of C=C was 100%. The effect of molar raio of TPPTS to Ru on the activity was remarkable. When [TPPTS]/[Ru] increased to 15, the conversion raised to 100% and the selectivit was kept unchanged.展开更多
文摘The photodissociation of oxalyl chloride and 2,3 butanedione at 193nm and 248nm have been studied by Time resolved FTIR emission spectroscopy. The IR fluorescence emission was observed and the rotational and vibrational populations of the CO product were obtained. It is suggested that the photolysis mechanism is two RCO radicals formed via a fission of C-C bond, followed by a decomposition of the RCO intermediate to vibrationally excited CO( v ) and R radical.
文摘The catalytic behaviours of Ruthenium comlex RhC12(TPPTS) 3 as catalyst precursor for the selective hydrogenation of Carbon-crbon double bond in methylvinylketone were studied in biphasic system (aqueous/ cyclohexane ). When the hydrogenation was carried out under the following condition: [Ru] = 2 × 10-3mol/L [TPPTS]/[Ru]=3, 2. 0MPa, H2O: 10mL, cyclohexane: 5mL, subettate: 25mmol,stiring speed: 600r/min, the conversion reached 70.13 % and the selectivity for the hydrosenation of C=C was 100%. The effect of molar raio of TPPTS to Ru on the activity was remarkable. When [TPPTS]/[Ru] increased to 15, the conversion raised to 100% and the selectivit was kept unchanged.