Journal
TETRAHEDRON
Volume 64, Issue 30-31, Pages 7112-7121Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2008.05.057
Keywords
self-assembly; p-tert-butyl thiacalix[4]arenes; molecular recognition; picrate extraction; dynamic light scattering (DLS)
Categories
Ask authors/readers for more resources
In this work, the synthesis of novel p-tert-butyl thiacalix[4]arenes functionalized with the secondary amide groups at the lower rim in cone, partial cone, and 1,3-alternate conformations is described. The ability of novel thiacalixarene derivatives to form dimeric associates held together by hydrogen bonds of p-tert-butyl thiacalixarenes and to recognize metal ions of s (Li+, Na+, K+, Cs+, Mg2+, Ca2+, Ba2+), p (Al3+, Pb2+), and d (Fe3+, CO3+, Ni2+, Cu2+, Ag+, Cd2+, Hg2+) elements was investigated by the picrate extraction method and dynamic light scattering (DLS). As was established, the thiacalix[4]arenes investigated are poor extractants for all the metal ions. Meanwhile they self-associate to form dimers; of similar size (1.1-2.7 nm) and nanoscale particles consisting of p-tert-butyl thiacalix[4]arenes and silver cations with hydrodynamic diameters of 70-170 nm. (c) 2008 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available