Interfacial binding of divalent cations to calixarene-based Langmuir monolayers
- Univ. of Applied Science and Arts Northwestern Switzerland, Muttenz (Switzerland)
- Ames Lab. and Iowa State Univ., Ames, IA (United States)
- Argonne National Lab. (ANL), Lemont, IL (United States)
- Univ. of Basel, Basel (Switzerland)
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
- OSTI ID:
- 1253372
- Alternate ID(s):
- OSTI ID: 1241124
- Report Number(s):
- IS-J--9001
- Journal Information:
- Langmuir, Journal Name: Langmuir Journal Issue: 8 Vol. 31; ISSN 0743-7463
- Publisher:
- American Chemical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Two-Dimensional Calix[4]arene-based Metal-Organic Coordination Networks of Tunable Crystallinity
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journal | October 2017 |
Two-Dimensional Calix[4]arene-based Metal-Organic Coordination Networks of Tunable Crystallinity
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journal | October 2017 |
Inorganic mixed phase templated by a fatty acid monolayer at the air–water interface: the Mn and Mg case
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journal | January 2018 |
Assembling features of calixarene-based amphiphiles and supra-amphiphiles
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journal | January 2020 |
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