Application of 41203-22-9, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.41203-22-9, Name is 1,4,8,11-Tetramethyl-1,4,8,11-tetraazacyclotetradecane, molecular formula is C14H32N4. In a Article£¬once mentioned of 41203-22-9
COMPLEXES OF 9-PROPYLFLUORENYL ION PAIRS WITH TERTIARY POLYAMINES IN APOLAR SOLVENTS
The complexation of tetramethylethylenediamine (TMEDA), hexamethyltriethylenetetramine (HMTT) and tetramethyltetraazacyclotetradecane (TMTCT) with ion pairs of 9-(n-propyl)fluorenyllithium (PFl-, Li+) and n-butyl-9-(n-propyl)fluorenylmagnesium (BuPFlMg) in cyclohexane was studied by optical spectroscopy.The results can be explained in terms of externally complexed tight ion pairs and ligand-separated ion pairs, the latter complexes being much less soluble.With HMTT and PFl-, Li+, the only complexes formed are (PFl-, Li+)2 HMTT (lambdam 357 nm) and PFl-, HMTT, Li+ (lambdam 383 nm).The reaction of PFl-, Li+, TMEDA with TMTCT to form the loose ion pair complex PFl-, TMTCT, Li+ has a rate constant in toluene of 250 M-1 sec-1.With the magnesium compound, the amines form only a loose ion pair complex, e.g., BuMg+, TMEDA, PFl- (lambdam 382 nm).
The reactant in an enzyme-catalyzed reaction is called a substrate. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction.I hope my blog about 41203-22-9 is helpful to your research. Application of 41203-22-9
Reference£º
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI