86803-85-2

Basic information

• Product Name: Aluminum, [2,6-bis(1,1-dimethylethyl)-4-methylphenolato]dimethyl-
• Synonyms: Me2Al(2,6-di-tert-butyl-4-methylphenoxide);dimethylaluminum 2,6-di-tert-butyl-4-methylphenoxyde;dimethylaluminium 2,6-di-t-butyl-4-methylphenoxide
• CAS NO: 86803-85-2
• Molecular Formula: C17H29AlO
• Molecular Weight: 276.398
• Mol File: 86803-85-2.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: Aluminum, [2,6-bis(1,1-dimethylethyl)-4-methylphenolato]dimethyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Aluminum, [2,6-bis(1,1-dimethylethyl)-4-methylphenolato]dimethyl-(86803-85-2)
• EPA Substance Registry System: Aluminum, [2,6-bis(1,1-dimethylethyl)-4-methylphenolato]dimethyl-(86803-85-2)

Safety Data

• Hazardous Substances Data: 86803-85-2(Hazardous Substances Data)

Upstream product

• 41866-82-4 2,6-di-t-butyl-4-methylphenol anionic form 
• 75-24-1 trimethylaluminum 
• 56252-55-2 bis(2,6-di-tert-butyl-4-methylphenoxide)methylaluminum 
• 128-37-0 2,6-di-tert-butyl-4-methyl-phenol 

Relevant articles and documents

Extraction of Reliable Molecular Information from Diffusion NMR Spectroscopy: Hydrodynamic Volume or Molecular Mass?

Measuring accurate translational self-diffusion coefficients (Dt) by NMR techniques with modern spectrometers has become rather routine. In contrast, the derivation of reliable molecular information therefrom still remains a nontrivial task. In this paper, two established approaches to estimating molecular size in terms of hydrodynamic volume (VH) or molecular weight (M) are compared. Ad hoc designed experiments allowed the critical aspects of their application to be explored by translating relatively complex theoretical principles into practical take-home messages. For instance, comparing the Dt values of three isosteric Cp2MCl2 complexes (Cp=cyclopentadienyl, M=Ti, Zr, Hf), having significantly different molecular mass, provided an empirical demonstration that VH is the critical molecular property affecting Dt. This central concept served to clarify the assumptions behind the derivation of Dt=?(M) power laws from the Stokes–Einstein equation. Some pitfalls in establishing log (Dt) versus log (M) linear correlations for a set of species have been highlighted by further investigations of selected examples. The effectiveness of the Stokes–Einstein equation itself in describing the aggregation or polymerization of differently shaped species has been explored by comparing, for example, a ball-shaped silsesquioxane cage with its cigar-like dimeric form, or styrene with polystyrene macromolecules.

Sterically crowded aryloxide compounds of aluminum

The interaction of AlMe3 with 2 equiv of the sterically hindered phenol 2,6-di-tert-butyl-4-methylphenol (BHT-H) gives the disubstituted compound AlMe(BHT)2 (1), whereas the use of an excess of AlMe3 leads to the compound