97591-95-2

Basic information

• Product Name: (CO)5MnMn(CO)2(C₅NH₄CHNC₆H₄CH₃)(C₄H₇OCH₃)
• CAS NO: 97591-95-2
• Molecular Weight: 588.334
• Mol File: 97591-95-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: (CO)5MnMn(CO)2(C₅NH₄CHNC₆H₄CH₃)(C₄H₇OCH₃)(CAS DataBase Reference)
• NIST Chemistry Reference: (CO)5MnMn(CO)2(C₅NH₄CHNC₆H₄CH₃)(C₄H₇OCH₃)(97591-95-2)
• EPA Substance Registry System: (CO)5MnMn(CO)2(C₅NH₄CHNC₆H₄CH₃)(C₄H₇OCH₃)(97591-95-2)

Safety Data

• Hazardous Substances Data: 97591-95-2(Hazardous Substances Data)

Upstream product

• 96-47-9 2-methyltetrahydrofuran 
• 97591-94-1 (CO)5MnMn(CO)3(CH₃C₆H₄NCHNC₅H₄) 

Relevant articles and documents

Photochemistry of metal-metal-bonded complexes. 1. MLCT photolysis of (CO)5MM′(CO)3(α-diimine) (M, M′ = Mn, Re) in 2-MeTHF between 133 and 230 K

The photolysis in 2-MeTHF is reported for several complexes (CO)5MM′(CO)3(α-diimine) (M, M′ = Mn, Re) at temperatures varying from 133 to 230 K. Above 200 K homolysis of the metal-metal bond occurs for the complexes with M = Mn and M′ = Mn, Re. At temperatures below 200 K the main reaction products are [M(CO)5]- and [M′(CO)3(α-diimine)(2-MeTHF)]+ if M = Mn, Re and M′ = Mn. Although these 2-MeTHF-coordinated cations reacted back with [M(CO)5]- to the parent compound upon raising the temperature, several P(n-Bu)3-substituted complexes [M(CO)5]-[M′(CO) 3(α-diimine)(P(n-Bu)3)]+ could be isolated. It appeared that the ions were not formed by direct heterolysis of the metal-metal bond but instead by thermal disproportionation of a photosubstituted product (CO)5MM′(CO)2(α-diimine)(2-Me-THF). Several P(n-Bu)3-substituted complexes (CO)5MM′(CO)2(α-diimine)(P(n-Bu)3) could be identified for M = Re, M′ = Mn. Contrary to the complexes with M = Mn, Re and M′ = Mn, the corresponding (CO)5MnRe(CO)3(α-diimine) ones did not show photosubstitution of CO but instead breaking of a metal-nitrogen bond upon photolysis at 133 K. It is proposed that this bond breaking is the primary photoprocess at lower temperatures and that it is followed by release of CO in the case of M′ = Mn. An energy vs. distortion diagram is presented according to which the homolytic splitting of the metal-metal bond and the breaking of the metal-nitrogen bond occur from two different close-lying excited states, 3σbπ* and 3dππ*, respectively.