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Eftaiha AF, Qaroush AK, Abo-Shunnar AS, Hammad SB, Assaf KI, Al-Qaisi FM, Paige MF. Interfacial Behavior of Modified Nicotinic Acid as Conventional/Gemini Surfactants. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8524-8533. [PMID: 35775397 DOI: 10.1021/acs.langmuir.2c00596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
We report the synthesis and monolayer properties of conventional and gemini surfactants composed of nicotinic acid-based head groups with an emphasis on assessing how chemical structures affect the behavior of monolayers. A combination of Brewster angle microscopy and atomic force microscopy showed that pure hexadecyl nicotinate formed rippled strands in monolayers, and the gemini correspondents with either flexible or rigid organic linkers resulted in lobed-compact domains, which provides a simple method for patterning air-water and solid-air interfaces. The structural differences between conventional and gemini nicotinic acid-based surfactants could be explained by the interplay between line tension (that favors the formation of circular domains), balanced by dipole-dipole repulsion interaction between headgroups, which promotes extended domains. Miscibility and morphology studies of the modified nicotinic acid surfactants with palmitic acid demonstrated that the properties of mixed films can be controlled by the structure of the former. Excess Gibbs free energies of mixing indicated that the mixed films were less stable than the pure monolayers, and the positive deviations from ideality were the largest in the case of gemini surfactants.
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Affiliation(s)
- Ala'a F Eftaiha
- Department of Chemistry, Faculty of Science, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan
| | - Abdussalam K Qaroush
- Department of Chemistry, Faculty of Science, The University of Jordan, Amman 11942, Jordan
| | - Ahmad S Abo-Shunnar
- Department of Chemistry, Faculty of Science, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan
| | - Suhad B Hammad
- Department of Chemistry, Faculty of Science, The University of Jordan, Amman 11942, Jordan
| | - Khaleel I Assaf
- Department of Chemistry, Faculty of Science, Al-Balqa Applied University, Al-Salt 19117, Jordan
| | - Feda'a M Al-Qaisi
- Department of Chemistry, Faculty of Science, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan
| | - Matthew F Paige
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada
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Picheth GF, Moine L, Houvenagel S, Menezes LRA, Sassaki GL, Dejean C, Huang N, Alves de Freitas R, Tsapis N. Impact of Polylactide Fluorinated End-Group Lengths and Their Dynamics on Perfluorohexane Microcapsule Morphology. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Kumar V, Pilati T, Quici S, Chierotti MR, Nervi C, Gobetto R, Resnati G. Proton in a Confined Space: Structural Studies of H + ⊂Crypt-111 Iodide and Some Halogen-Bonded Derivatives. Chemistry 2017; 23:14462-14468. [PMID: 28657685 DOI: 10.1002/chem.201701699] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2017] [Revised: 06/27/2017] [Indexed: 11/06/2022]
Abstract
Experimental observations and modeling data are reported on the solid-state structural features of crypt- 111⋅HI (1) and the three-component co-crystals that 1 forms with α,ω-diiodoperfluoroalkanes 2 a-d. X-ray analyses indicate that, in all five systems and at low temperature, the caged proton is covalently bonded to a single nitrogen atom and is involved in a network of intramolecular hydrogen bonds. In contrast, room-temperature, solid-state 15 N NMR spectroscopy suggests magnetic equivalency of the two N atoms of crypt-111 in both 1 and co-crystals of 1 with diiodoperfluoroalkanes. Computational modelling confirms that the acidic hydrogen inside the cavity preferentially sits along the internitrogen axis and is covalently bonded to one nitrogen. The computed energy barriers suggest that the hopping of the encapsulated proton between the two N atoms of the cage can occur in the halogen-bonded co-crystals of 1⋅2, but it is hardly possible in the pure H+ ⊂crypt-111 iodide 1. These different pictures of the proton position and dynamics obtained by using different techniques and conditions confirm the unique characteristics of the confined space within the cavity of crypr-111 and the distinctive features of processes occurring therein.
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Affiliation(s)
- Vijith Kumar
- Nanostructured Fluorinated Materials Laboratory (NFMLab), Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via L. Mancinelli 7, 20131, Milan, Italy
| | - Tullio Pilati
- Nanostructured Fluorinated Materials Laboratory (NFMLab), Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via L. Mancinelli 7, 20131, Milan, Italy
| | - Silvio Quici
- CNR, Istituto di Scienze e Tecnologie Molecolari, Via C. Golgi 19, 20133, Milan, Italy
| | - Michele R Chierotti
- Department of Chemistry and NIS, University of Turin, Via P. Giuria 7, 10125, Turin, Italy
| | - Carlo Nervi
- Department of Chemistry and NIS, University of Turin, Via P. Giuria 7, 10125, Turin, Italy
| | - Roberto Gobetto
- Department of Chemistry and NIS, University of Turin, Via P. Giuria 7, 10125, Turin, Italy
| | - Giuseppe Resnati
- Nanostructured Fluorinated Materials Laboratory (NFMLab), Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Via L. Mancinelli 7, 20131, Milan, Italy
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Jbeily M, Schwieger C, Kressler J. Mixed Langmuir monolayers of perfluorostearic acid and stearic acid studied by epifluorescence microscopy using fluorinated rhodamines and infrared reflection absorption spectroscopy (IRRAS). Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kumar V, Pilati T, Terraneo G, Meyer F, Metrangolo P, Resnati G. Halogen bonded Borromean networks by design: topology invariance and metric tuning in a library of multi-component systems. Chem Sci 2017; 8:1801-1810. [PMID: 28694953 PMCID: PMC5477818 DOI: 10.1039/c6sc04478f] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 10/20/2016] [Indexed: 12/31/2022] Open
Abstract
A library of supramolecular anionic networks showing Borromean interpenetration has been prepared by self-assembly of crypt-222, several metal or ammonium halides, and five bis-homologous α,ω-diiodoperfluoroalkanes. Halogen bonding has driven the formation of these anionic networks. Borromean entanglement has been obtained starting from all the four used cations, all the three used anions, but only two of the five used diiodoperfluoroalkanes. As the change of the diiodoperfluoroalkane, the cation, or the anion has a different relative effect on the metrics and bondings of the self-assembled systems, it can be generalized that bonding, namely energetic, features play here a less influential role than metric features in determining the topology of the prepared tetra-component cocrystals. This conclusion may hold true for other multi-component systems and may function as a general heuristic principle when pursuing the preparation of multi-component systems having the same topology but different composition.
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Affiliation(s)
- Vijith Kumar
- Laboratory of Nanostructured Fluorinated Materials (NFMLab) , Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta" , Politecnico di Milano , Via L. Mancinelli 7 , 20131 Milano , Italy .
| | - Tullio Pilati
- Laboratory of Nanostructured Fluorinated Materials (NFMLab) , Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta" , Politecnico di Milano , Via L. Mancinelli 7 , 20131 Milano , Italy .
| | - Giancarlo Terraneo
- Laboratory of Nanostructured Fluorinated Materials (NFMLab) , Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta" , Politecnico di Milano , Via L. Mancinelli 7 , 20131 Milano , Italy .
| | - Franck Meyer
- Laboratory of Nanostructured Fluorinated Materials (NFMLab) , Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta" , Politecnico di Milano , Via L. Mancinelli 7 , 20131 Milano , Italy .
| | - Pierangelo Metrangolo
- Laboratory of Nanostructured Fluorinated Materials (NFMLab) , Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta" , Politecnico di Milano , Via L. Mancinelli 7 , 20131 Milano , Italy .
- VTT-Technical Research Centre of Finland , P. O. Box 1000, FI-02044 VTT , Finland
| | - Giuseppe Resnati
- Laboratory of Nanostructured Fluorinated Materials (NFMLab) , Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta" , Politecnico di Milano , Via L. Mancinelli 7 , 20131 Milano , Italy .
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