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Zhang M, Wang J, Zhang P. Controllable Self-Assembly of Amphiphilic Dendrimers on a Silica Surface: The Effect of Molecular Topological Structure and Salinity. J Phys Chem B 2016; 120:10990-10999. [DOI: 10.1021/acs.jpcb.6b05673] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Minghui Zhang
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Colloid,
Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jinben Wang
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Colloid,
Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Pei Zhang
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Colloid,
Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
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Aprile A, Ciuchi F, Pinalli R, Dalcanale E, Pagliusi P. Probing Molecular Recognition at the Solid-Gas Interface by Sum-Frequency Vibrational Spectroscopy. J Phys Chem Lett 2016; 7:3022-3026. [PMID: 27438350 DOI: 10.1021/acs.jpclett.6b01300] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Molecular recognition is among the most important chemical events in living systems and has been emulated in supramolecular chemistry, driven by chemical and biochemical sensing potential. Identifying host-guest association in situ at the interface, between the substrate-bound receptors and the analyte-containing media, is essential to predict complexation performances in term of the receptor conformation, orientation and organization. Herein, we report the first sum-frequency vibrational spectroscopy study of molecular recognition at the solid-gas interface. The binding capability of tetraquinoxaline cavitands toward volatile aromatic and aliphatic compounds, namely benzonitrile and acetonitrile, is investigated as test system. We prove the selective complexation of the receptors, organized in a solid-supported hybrid bilayer, toward aromatic compounds. Quantitative analysis allows to correlate the average orientations of the guest molecules and the host binding pockets, establishing "on-axis" complexation of benzonitrile within the cavitand cavity. The study is readily applicable to other receptors, molecular architectures, interfaces and analytes.
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Affiliation(s)
- Arianna Aprile
- Department of Physics, University of Calabria , Ponte P. Bucci 31C, 87036 Rende, Cosenza, Italy
- CNR-Nanotec, LiCryL and Centre of Excellence CEMIF.CAL , Ponte P. Bucci 33B, 87036 Rende, Cosenza, Italy
| | - Federica Ciuchi
- CNR-Nanotec, LiCryL and Centre of Excellence CEMIF.CAL , Ponte P. Bucci 33B, 87036 Rende, Cosenza, Italy
| | - Roberta Pinalli
- Department of Chemistry, University of Parma, and INSTM , UdR Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Enrico Dalcanale
- Department of Chemistry, University of Parma, and INSTM , UdR Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Pasquale Pagliusi
- Department of Physics, University of Calabria , Ponte P. Bucci 31C, 87036 Rende, Cosenza, Italy
- CNR-Nanotec, LiCryL and Centre of Excellence CEMIF.CAL , Ponte P. Bucci 33B, 87036 Rende, Cosenza, Italy
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