1448224-31-4

Basic information

• Product Name: H(dmpe)2Mn=SnCl(C₆H₃-2,6-(2,4,6-trimethylphenyl)2)
• CAS NO: 1448224-31-4
• Molecular Weight: 823.853
• Mol File: 1448224-31-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: H(dmpe)2Mn=SnCl(C₆H₃-2,6-(2,4,6-trimethylphenyl)2)(CAS DataBase Reference)
• NIST Chemistry Reference: H(dmpe)2Mn=SnCl(C₆H₃-2,6-(2,4,6-trimethylphenyl)2)(1448224-31-4)
• EPA Substance Registry System: H(dmpe)2Mn=SnCl(C₆H₃-2,6-(2,4,6-trimethylphenyl)2)(1448224-31-4)

Safety Data

• Hazardous Substances Data: 1448224-31-4(Hazardous Substances Data)

Upstream product

• 144375-21-3 MnH₃(dmpe)2 
• 380457-53-4 (2,6-bis(2,4,6-trimethylphenyl)phenyl)chlorostannylene 

Relevant articles and documents

Manganese-tin triple bonds: A new synthetic route to the manganese stannylidyne complex cation trans -[H(dmpe)2Mn-Sn(C6H 3-2,6-Mes2)]+ (dmpe = Me2PCH 2CH2PMe2, Mes = 2,4,6-Trimethylphenyl)

A new approach to the first complex featuring a manganese-tin triple bond that takes advantage of the propensity of dihydrogen complexes to eliminate H2 is reported. Reaction of the 18-valence-electron manganese dihydrogen hydride complex [MnH(η2-H2)(dmpe) 2] (1) (dmpe = Me2PCH2CH2PMe 2) with the organotin(II) chloride SnCl(C6H 3-2,6-Mes2) (Mes = 2,4,6-trimethylphenyl) selectively afforded by H2 elimination the chlorostannylidene complex trans-[H(dmpe)2Mn-Sn(Cl)(C6H3-2,6-Mes 2)] (2), which upon treatment with Na[B(C6H 3-3,5-(CF3)2)4] and Li[Al(OC(CF 3)3)4] was transformed quantitatively into the stannylidyne complex salts trans-[H(dmpe)2Mn-Sn(C6H 3-2,6-Mes2)]A [A = B(C6H3-3,5- (CF3)2)4 (3a), Al(OC(CF3) 3)4 (3b)]. Complexes 2 and 3a/3b were fully characterized, and the structures of 2 and 3a were determined by single-crystal X-ray diffraction. Complex 2 features the shortest Mn-Sn double bond reported to date, a large Mn-Sn-Caryl bond angle, and a long Sn-Cl bond of the trigonal-planar-coordinated tin center. These bonding features can be rationalized in valence-bond terms by a strong contribution of the triply bonded resonance structure [LnMn-SnR]Cl and were verified by a natural resonance theory (NRT) analysis of the electron density of the DFT-minimized structure of 2. Complex 3a features the shortest Mn-Sn bond reported to date and a linearly coordinated tin atom. Natural bond order and NRT analyses of the electronic structure of the complex cation in 3a/3b suggested a highly polar Mn-Sn triple bond with a 65% ionic contribution to the NRT Mn-Sn bond order of 2.25. Complex 3a undergoes reversible one-electron reduction, suggesting that open-shell stannylidyne complexes might be accessible using strong reducing agents.