115512-46-4

Basic information

• Product Name: Ru(CO)3(η4-1,4-pentadiene)
• Synonyms: Ru(CO)3(η4-1,4-pentadiene)
• CAS NO: 115512-46-4
• Molecular Weight: 253.22
• Mol File: 115512-46-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Ru(CO)3(η4-1,4-pentadiene)(CAS DataBase Reference)
• NIST Chemistry Reference: Ru(CO)3(η4-1,4-pentadiene)(115512-46-4)
• EPA Substance Registry System: Ru(CO)3(η4-1,4-pentadiene)(115512-46-4)

Safety Data

• Hazardous Substances Data: 115512-46-4(Hazardous Substances Data)

Upstream product

• 106520-58-5 Ru(CO)3(C₂H₄)2 
• 591-93-5 1,4-Pentadiene 

Downstream Products

• 20332-49-4 tricarbonylbis(triphenylphosphine)ruthenium⁽⁰⁾ 

Relevant articles and documents

Thermal reactions of Ru(CO)3(C2H4)2 with acyclic, nonconjugated dienes and photochemistry of Ru(CO)4(η2-diene) complexes

Near-UV irradiation of Ru(CO)4(η2-1,4-pentadiene), formed from visible-light (λ > 420 nm) irradiation of Ru3(CO)12, in alkane solution containing excess 1,4-pentadiene at 298 K yields Ru(CO)3(η4-1,4-pentadiene) even in the presence of ～1 M 1,4-pentadiene. The complex Ru(CO)3(η4-1,4-pentadiene) isomerizes to the thermodynamically more stable conjugated diene complex Ru(CO)3(η4-1,3-pentadiene) with a half-time of about 2 min at 298 K. Near-UV irradiation of Ru(CO)4(η2-1,4-pentadiene) in rigid methylcyclohexane glasses containing ～1 M 1,4-pentadiene at 77 K yields Ru(CO)3(η4-1,4-pentadiene) as the major product (～75%) but HRu(CO)3(η3-C5H7) is also observed as a minor product (～25%) that isomerizes to Ru(CO)3(η4-1,3-pentadiene) above 198 K. Room temperature photolysis of Ru(CO)4(η2-3-methyl-1,4-pentadiene) in the presence of 3-methyl-1,4-pentadiene gives Ru(CO)3(η4-3-methyl-1,4-pentadiene), and this species reacts to give a 1,3-diene complex with a half-time of >3 h. Near-UV irradiation of Ru(CO)4(η2-1,5-hexadiene) in the presence of ～1 M 1,5-hexadiene yields the nonconjugated diene complex Ru(CO)3(η4-1,5-hexadiene). In contrast to Ru(CO)3(η4-1,4-pentadiene), Ru(CO)3(η4-1,5-hexadiene) is stable for hours in alkane solution at 298 K. Near-UV irradiation of Ru(CO)4(η2-1,6-heptadiene) in the presence of ～1 M 1,6-heptadiene does not generate a chelating diene complex Ru(CO)3(η4-1,6-heptadiene) but rather the bis(olefin) complex Ru(CO)3(η2-1,6-heptadiene)2. Thermal reaction of Ru(CO)3(C2H4)2 with ～1 M diene = 1,4-pentadiene, 3-methyl-1,4-pentadiene, 1,5-hexadiene, and 1,6-heptadiene yields the same products as observed from photolysis of Ru(CO)4(η2-diene) in ～1 M diene at 298 K.