457063-92-2

Basic information

• Product Name: bis(indenyl)bis(mesitylimido)molybdenum(VI)
• CAS NO: 457063-92-2
• Molecular Weight: 592.635
• Mol File: 457063-92-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: bis(indenyl)bis(mesitylimido)molybdenum(VI)(CAS DataBase Reference)
• NIST Chemistry Reference: bis(indenyl)bis(mesitylimido)molybdenum(VI)(457063-92-2)
• EPA Substance Registry System: bis(indenyl)bis(mesitylimido)molybdenum(VI)(457063-92-2)

Safety Data

• Hazardous Substances Data: 457063-92-2(Hazardous Substances Data)

Upstream product

• 20669-47-0 lithium indenide 
• 159026-83-2 [Mo(NC₆H₂Me₃-2,4,6)2Cl₂(1,2-dimethoxyethane)] 

Relevant articles and documents

Sigma- versus Pi-coordination in bis-indenyl- and bis-2-methallyl imido complexes of hexavalent molybdenum and tungsten: DF-calculations and crystal structure analysis

Bis-indenyl and bis-2-methallyl imido complexes [(C9H7)2M(NR)2] (M = Mo, W; R = tert-butyl, mesityl) 1 - 4 and [(H3C-C3H4)2M(NtBu)2] (M = Mo, W) 6, 7 have been prepared starting from [Mo(NtBu)2Cl2] or [M(NR)2Cl2L2] (M = W, R = tBu, L = py; M = Mo, W, R = Mes, L2 = dme) and indenyl lithium or 2-methallyl magnesium bromide, respectively. According to spectroscopic data and the crystal structure of 4 there are two different coordination modes of the indenyl ligands, [(η3C9H7)M(NR)2(η 1-C9H7)], in solution as well as in the solid state. These compounds show fluxional rearrangements in solution, namely σ, π-exchange of η1- and η3-coordinated ligands. Similar behavior has been observed for the 2-methallyl complexes 6 and 7 in solution. In agreement with experimental observations, DF calculations on models of 6 strongly suggest a (σ+π)-coordination mode of the η3-coordinated ligand.