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Title: Interfacial binding of divalent cations to calixarene-based Langmuir monolayers

Journal Article · · Langmuir
 [1];  [2];  [2];  [3];  [4];  [2];  [1]
  1. Univ. of Applied Science and Arts Northwestern Switzerland, Muttenz (Switzerland)
  2. Ames Lab. and Iowa State Univ., Ames, IA (United States)
  3. Argonne National Lab. (ANL), Lemont, IL (United States)
  4. Univ. of Basel, Basel (Switzerland)
+ Show Author Affiliations

The interactions of Langmuir monolayers produced through the self-assembly of an amphiphilic p-carboxycalix[4]arene with a series of divalent, fourth-period transition metals, at the air-water interface, were investigated. Changes in the interfacial behavior of 1 in response to the presence of CuCl2, CoCl2, MnCl2, and NiCl2 were studied by means of Langmuir compression isotherms and Brewster angle microscopy (BAM). The measurements revealed that the self-assembly properties of 1 are significantly affected by Cu2+ ions. The interactions of 1-based monolayers with Co2+ and Cu2+ ions were further investigated by means of synchrotron radiation-based X-ray reflectivity (XRR), X-ray near-total-reflection fluorescence (XNTRF), and grazing incidence X-ray diffraction (GIXD). XNTRF and XRR analyses revealed that the monolayer of 1 binds more strongly to Cu2+ than Co2+ ions. In the presence of relatively high concentrations of Cu2+ ions in the subphase (1.4 × 10-3 M), XNTRF exhibited anomalous depth profile behavior and GIXD measurements showed considerably strong diffuse scattering. Furthermore, both measurements suggest the formation of Cu2+ clusters contiguous to the monolayer of 1.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
Grant/Contract Number:
AC02-07CH11358; 200020_143592
OSTI ID:
1253372
Report Number(s):
IS-J-9001
Journal Information:
Langmuir, Vol. 31, Issue 8; ISSN 0743-7463
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

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Cited By (4)

Two-Dimensional Calix[4]arene-based Metal-Organic Coordination Networks of Tunable Crystallinity journal October 2017
Inorganic mixed phase templated by a fatty acid monolayer at the air–water interface: the Mn and Mg case journal January 2018
Assembling features of calixarene-based amphiphiles and supra-amphiphiles journal January 2020
Two-Dimensional Calix[4]arene-based Metal-Organic Coordination Networks of Tunable Crystallinity journal October 2017

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
calix[4]arenes
Langmuir monolayers
self-assembly
X-ray near-total-reflection fluorescence
grazing incidence X-ray diffraction