Add time:09/10/2019 Source:sciencedirect.com
The effects have been quantified of t-butyl substituents on the thermodynamic stability of cyclopentadienide ions with no, one, two, and three t-butyl groups, 1−, 2−, 3− and 4−, respectively. The stability estimated from oxidation potential values decreases in the order 1− (+ 0.04 V) >2− (− 0.16 V) >3− (− 0.28 V) >4− (−0.45 V). The stability evaluated from pKa values decreases in the same sequence (1H: 18.2, 2H: 19.9, 3H: 21.9, and 4H: 25.0 in DMSO). The t-butyl substituent reduces the thermodynamic stability of cyclopentadienide ion in step with increasing number of substituents and this is most probably due to a decrease in solvation and an increase in inductive effect in the carbanion.
We also recommend Trading Suppliers and Manufacturers of LITHIUM CYCLOPENTADIENIDE (cas 16733-97-4). Pls Click Website Link as below: cas 16733-97-4 suppliers
About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia
Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog
©2008 LookChem.com,License: ICP
NO.:Zhejiang16009103
complaints:service@lookchem.com Desktop View