ISSN:
1573-1111
Keywords:
UV visible spectroscopy
;
donor-acceptor charge transfer band
;
crown ethers
;
15C5
;
18C6
;
B15C5
;
BI8C6 and DB24C8
;
picric acid
;
effect of salt on charge transfer band
;
conformation of crown ether
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The intermolecular charge-transfer spectra of seven crown ethers (CE), viz, 15C5, 18C6, B15C5, B18C6, DC18C6, and DB24C8, with picric acid (PA) were studied in the UV-visible region in 1,2-dichloroethane (DCE) at 298.2 K. The complex formation equilibrium constant values,K c, suggest that many factors contribute toK c, among them crown ether conformation, size and the presence of an aromatic ring in the CE.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01044999
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