Binding of calixarene-based Langmuir monolayers to mercury chloride is dependent on the amphiphile structure

Journal Article · Fri Jan 01 00:00:00 EST 2016 · RSC Advances

DOI:https://doi.org/10.1039/C5RA25470A· OSTI ID:1391722

Tulli, Ludovico G.; Wang, Wenjie; Rullaud, Vanessa; Lindemann, William R.; Kuzmenko, Ivan; Vaknin, David; Shahgaldian, Patrick

Two amphiphilic calix[4]arenes bearing four dodecyl chains at the lower rim and two amino functions (vicinal and distal) at the para-phenolic positions have been synthesized. Surface-pressure versus molecular-area isotherms reveal that Langmuir monolayers of the two regioisomers show considerably distinct self-assembly behaviors at the air–water interface. Compression isotherms, Brewster angle microscopy and synchrotron-based X-ray near-total-reflection fluorescence, X-ray reflectivity and grazing incidence X-ray diffraction reveal that the monolayers of the two diamino calix[4]arene derivatives and those of their structural analogues bearing four amino moieties in para positions exhibit significant differences in their binding properties towards HgCl2 despite the structural and functional similarity among the macrocycles.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Sponsoring Organization: Swiss Nanoscience Institute (SNI); Swiss National Science Foundation (SNSF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 1391722
• Journal Information: RSC Advances, Vol. 6, Issue 11; ISSN 2046-2069
• Publisher: Royal Society of Chemistry
• Country of Publication: United States
• Language: English