13985-77-8

Basic information

• Product Name: Manganese, phenyl pentacarbonyl
• Synonyms: CH28432 PENTACARBONYLPHENYLMANGANESE;phenylmanganese pentacarbonyl
• CAS NO: 13985-77-8
• Molecular Formula: C11H15MnO5
• Molecular Weight: 272.096
• Mol File: 13985-77-8.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: Manganese, phenyl pentacarbonyl(CAS DataBase Reference)
• NIST Chemistry Reference: Manganese, phenyl pentacarbonyl(13985-77-8)
• EPA Substance Registry System: Manganese, phenyl pentacarbonyl(13985-77-8)

Safety Data

• Hazardous Substances Data: 13985-77-8(Hazardous Substances Data)

Upstream product

• 52542-59-3 bis(triphenylphosphineiminium) pentacarbonylmanganate^(1-) 
• 58109-40-3 diphenyliodonium hexafluorophosphate 
• 57835-99-1 triphenylsulphonium hexafluorophosphate 
• 10170-69-1 dimanganese decacarbonyl 
• 587-85-9 diphenylmercury(II) 
• 15689-01-7 Li(pentacarbonylmanganese) 
• 98-88-4 benzoyl chloride 
• 182069-92-7 P(C₆H₅)4⁽¹⁺⁾*Mn(CO)5^(1-)={P(C₆H₅)4}{Mn(CO)5} 
• 15693-51-3 potassium[manganese(pentacarbonyl)] 
• 142198-39-8 I(C₆H₅)2⁽¹⁺⁾*Mn(CO)5^(1-)={I(C₆H₅)2}{Mn(CO)5} 
• 37504-44-2 (acetonitrile)pentacarbonylmanganese(I) hexafluorophosphate 
• 143-66-8 sodium tetraphenyl borate 

Downstream Products

• 10170-69-1 dimanganese decacarbonyl 
• 116779-99-8 [Mn(1-5-η-C7H8(Me))(CO)3] 
• 32798-86-0 tricarbonyl(η(5)-2,4-cycloheptadien-yl)manganese 
• 88363-36-4 η-(1-diphenylmethyl-3-phenyl-cyclopentadienyl)manganese tricarbonyl 
• 88363-35-3 η-(1-isopropyl-3-phenyl-cyclopentadienyl)manganese tricarbonyl 
• 85040-26-2 tetracarbonyl(η3-1-phenyl-2-penten-4-yl)manganese 
• 201230-82-2 carbon monoxide 
• 71-43-2 benzene 

Relevant articles and documents

Electron transfer versus nucleophilic pathways in the ion-pair annihilation of organoborate anions by carbonylmanganese(I) cations

Substituted carbonylmanganese cations [Mn(CO)5L]+, where L = py, PPh3 and PPh2Me, readily react with various organoborate anions (tetramethylborate, methyltriphenylborate and tetraphenylborate) in THF solution to afford a mixture of dimanganese carbonyls, hydridomanganese carbonyls and alkylmanganese carbonyls. The formation of the dimanganese carbonyl dimers as well as the hydridomanganese carbonyls suggests the involvement of 19-electron carbonylmanganese radicals that stem from an initial electron transfer. On the other hand, the acetonitrile-substituted analogue [Mn(CO)5(CH3CN)]+ reacts with the same borate anions to afford the alkylated RMn(CO)5, where R = CH3 and C6H5, as the sole carbonylmanganese product. As such, this alkylative annihilation is best formulated as a direct attack on the carbonyl carbon by the borate nucleophile. The two different pathways can be understood in terms of the balance between the electrophilicity of the carbonyl ligand and the electron affinity of the carbonylmanganese cation.

Synthesis and reactivity of metallacyclic manganese α-(silyloxy)alkyl complexes (CO)4MnC(R)(OSi(CH3)3)P(C6H 5)2. A new thermodynamic driving force for CO insertion

Reaction of (CO)5MnR (2) with (C6H5)2PSi(CH3)3 (3) gives metallacyclic α-(silyloxy)alkyl complexes (CO)4MnC(R)(OSi(CH3)3)P(C6H 5)2 (4) in 42-75% yields (R = CH3 (a), CH2Si(CH3)3 (b), C6H5 (c), 2-naphthyl (d)). These reactions are of interest in that the metallacyclic carbon is derived from an insertion of CO into the manganese-carbon bond of 2 - a step for which subsequent silicon-oxygen bond formation provides an additional thermodynamic driving force. Reaction of (CO)5MnCOC6H5 with 3 also gives 4c (63%). Phosphines (C6H5)3P and 3 react with 2a at nearly the same rate, both separately and in competition experiments. Passage of 4b through wet silica gel gives acyl complex cis-(CO)4Mn(COCH2Si(CH3)3)P(C 6H5)2H (6b, 84%), presumably via metallacyclic α-hydroxyalkyl complex (CO)4MnC(CH2Si(CH3)3)(OH)P(C 6H5)2 (7b). Reaction of 2b with (C6H5)2PH also gives 6b (91%). Reaction of (CO)5MnH and 3 in hexanes gives cis-(CO)4Mn(H)P(C6H5)2Si(CH 3)3 (8, 72%). Both 8 and 4a are inert to 300-360 psi of CO. The thermodynamics of these transformations are analyzed.