Reactions of polynuclear metal carbonyl anions with the proton and with carbocation reagents. The O-protonation and O-alkylation of bridging carbonyl ligands

Photoassisted synthesis of mixed-metal clusters: [PPN] [CoOs3(CO)13], H2RuOs3(CO)13, and H2FeOs3(CO)13

“…This has indeed been successful in one case and herein we report the preparation of [CoOs 3 (C) 13 ]-in good yield via photolysis of the reaction mixture shown in eq. 3.…”

“…1 9 In contrast to Ru 3 (CO) 12 , 8 photolysis of Os 3 (CO) 12 for 2 h under 6 atm of CO gives no net reaction whereas photolysis of Os 3 (CO) 1 2 in the presence of PPh 3 rapidly yields the Os 3 (CO) 12 _x(PPh 3 ) x (x = 1-3) substitution products. 19 We also find that photosubstitution dominates as irradiation of Os 3 (CO) 12 13 is shown in Figure 1 and the data summarized in Table I obtained from Alfa-Ventron Corp. and were used without further purification.…”

Synthesis with Carbon Monoxide and a Petroleum Product

“…36 Protonation and methylation at the oxygen atom have been reported in the case of polynuclear anions, especially of iron. 36 Protonation and methylation at the oxygen atom have been reported in the case of polynuclear anions, especially of iron.…”

“…The reaction rate reaches a maximum at 20 bar of CO pressure but this pressure has only a slight influence on the product selectivity. With [Ru(CO)3(PPri3)2] an induction period was noted unless the dihydride [RuH2(CO)2(PPri3)2] was preformed as shown in equation (36). 96 Addition of triarylphosphines or phosphites L increases the catalytic activity.…”

“…[Ru(CO) 3 (PPh 3 ) 2 ] + H 2 ^ [RuH 2 (CO) 2 (PPh 3 )2] + CO (36) Dodecacarbonyltriosmium was reported to be a moderately active catalyst. However, the formation of equal amounts of n-and iso-butanal from propene renders this metal poorly attractive.…”