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Synthesis of podands bearing aromatic end groups and complex formation with tropylium tetrafluoroborate in 1,2‐dichloroethane
Author(s) -
Lämsä Markku,
Raitamaa Kirsi,
Pursiainen Jouni
Publication year - 1999
Publication title -
journal of physical organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 66
eISSN - 1099-1395
pISSN - 0894-3230
DOI - 10.1002/(sici)1099-1395(199907)12:7<557::aid-poc155>3.0.co;2-t
Subject(s) - chemistry , tetrafluoroborate , dichloroethane , 1,2 dichloroethane , stability constants of complexes , polymer chemistry , medicinal chemistry , organic chemistry , ion , ionic liquid , catalysis
A series of podands bearing phenyl, naphthyl and anthryl end groups were prepared and characterized. UV–visible spectrophotometry was used to investigate the host–guest chemistry of the podands in complexation with tropylium tetrafluoroborate in 1,2‐dichloroethane. The results are discussed and compared with those for previously studied systems containing crown ethers. The stability constants for these open‐chain polyethers are in the range 5.1–8.4 dm 3 mol −1 , except for the podand having anthryl end groups [1,12‐bis(anthryl‐9)‐2,5,8,11‐tetraoxadodecane], which gives a 10‐fold increase in the stability constant. Copyright © 1999 John Wiley & Sons, Ltd.