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Extraction of copper with p‐tert ‐butyl‐calixarenes
Author(s) -
Yang YuXiang,
Shi XianFa,
Ding ShiChao,
Chen YuDe,
Xu DiMin,
Chen RangSan
Publication year - 2000
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20000180608
Subject(s) - calixarene , chemistry , extraction (chemistry) , copper , medicinal chemistry , stereochemistry , organic chemistry , molecule
The extraction of copper with calixarenes was researched by comparing the results from calix[4]‐, calix[6]‐ and calix[8]‐arenes. The extraction ability increased as the order: calix [4]⇛ calix[8]⇛ calix[6]‐arenes, with the binding ratio being 1:1. The extraction mechanism was also discussed, and its equation Cu(NH 3 ) 4 2+ +H 2 L (0) → K ex Cu(NH 3 ) 4 L (0) +2H + and the extraction equilbrium constants ( K ex ) for calix[6]‐ and calix[8]‐arenes were obtained respectively.