15689-01-7

Basic information

• Product Name: Manganate(1-), pentacarbonyl-, lithium
• CAS NO: 15689-01-7
• Molecular Formula: C5MnO5.Li
• Molecular Weight: 201.931
• Mol File: 15689-01-7.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: Manganate(1-), pentacarbonyl-, lithium(CAS DataBase Reference)
• NIST Chemistry Reference: Manganate(1-), pentacarbonyl-, lithium(15689-01-7)
• EPA Substance Registry System: Manganate(1-), pentacarbonyl-, lithium(15689-01-7)

Safety Data

• Hazardous Substances Data: 15689-01-7(Hazardous Substances Data)

Upstream product

• 76830-97-2 (η3-C6H9)Mn(CO)3 
• 22560-16-3 lithium triethylborohydride 
• 85317-79-9 Li⁽¹⁺⁾*Mn₂(CO)9(CHO)^(1-)=Li(Mn₂(CO)9(CHO)) 
• 85283-42-7 Li⁽¹⁺⁾*ReMn(CO)9(CHO)^(1-)=Li(ReMn(CO)9(CHO)) 

Downstream Products

• 10170-69-1 dimanganese decacarbonyl 
• 14100-30-2 pentacarbonylchloromanganese(I) 
• 13985-77-8 phenylpentacarbonylmanganese(I) 

Relevant articles and documents

Synthesis and reactivity of cyclohexenylmanganese tricarbonyl, a complex containing a two-electron, three-center Mn?H?C interaction

The cation (benzene)Mn(CO)3+ undergoes stepwise, vicinal addition of 2 equiv of hydride in an exo fashion to yield a unique transition-metal anion, (1,3-cyclohexadiene)Mn(CO)3-. The diene anion is highly reactive. Exposure to oxygen results in oxidation of the metal and liberation of free 1,3-cyclohexadiene. Protonation yields an unusual, bridged (cyclohexenyl)Mn(CO)3 species possessing an aliphatic, endo C-H bond that is activated via coordination to manganese. The three-center Mn?H?C interaction in this complex renders the bridging hydrogen acidic and permits facile removal by base to regenerate the diene anion. Alkylation with MeI or MeOSO2CF3 results in methyl addition to the endo side of the ring and coordination of a second endo C-H bond. A second deprotonation/alkylation sequence can be achieved to give ring-dialkylated cyclohexenyl products. The coordinated C-H bond of the bridged cyclohexenyl species is replaced by external ligands L (L = CO, P(OMe)3) to give (cyclohexenyl)Mn(CO)3L adducts. Hydride addition to the π-allyl unit of the tetracarbonyl species results in reduction of the polyolefin to cyclohexene. Thermolysis of the phosphite adduct causes loss of CO and formation of the bridged complex (cyclohexenyl)Mn(CO)2P(OMe)3. The parent complex C6H9Mn(CO)3 reacts with diazomethane in an unexpected fashion providing an alternate and complimentary method of ring methylation. Reactions with activated olefins appear to proceed via a free radical mechanism resulting in transfer of H2 across the double bond.