Current time in Korea 11:11 Jul 31 (Sat) Year 2021 KCS KCS Publications
KCS Publications
My Journal  Log In  Register
HOME > Search > Browsing(BKCS) > Archives

Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 23, Number 6
BKCSDE 23(6)
June 20, 2002 

Novel 1,3-Alternate Calix[4]thiacrown Ethers
Wonbo Sim, Jai Young Lee, Jongchul Kwon, Moon Jib Kom, Jong Seung Kim
Calix[4]thiacrown ether, Calix[4]-bis-thiacrown, Complexation, Picrate extraction.
A series of novel 1,3-alternate calix[4]=mono-thiacrown and -bis-thiacrowns within good yields.The three dimensional 1,3-alternate conformation was confirmed by X-ray crystal structure. From the results of two phase extraction and NMR studies on the lignad -metal complex, one can conclude that the calix[4]thiacrown ethers showed the very high selectivity for silver ion over other metal by an electrostatic interaction between sulfur atom and silver ion and a π-metla complexation
879 - 883
Full Text