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Panchal M, Kongor A, Athar M, Mehta V, Jha PC, Jain VK. Sensing of Ce(iii) using di-naphthoylated oxacalix[4]arene via realistic simulations and experimental studies. NEW J CHEM 2018. [DOI: 10.1039/c7nj02828h] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Here, we report a fluorescent sensor for the detection of Ce(iii) using di-naphthoylated oxacalix[4]arene (DNOC).
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Affiliation(s)
- Manthan Panchal
- Department of Chemistry
- School of Sciences
- Gujarat University
- Ahmedabad – 380009
- India
| | - Anita Kongor
- Department of Chemistry
- School of Sciences
- Gujarat University
- Ahmedabad – 380009
- India
| | - Mohd Athar
- School of Chemical Sciences
- Central University of Gujarat
- Gandhinagar
- India
| | - Viren Mehta
- Department of Chemistry
- School of Sciences
- Gujarat University
- Ahmedabad – 380009
- India
| | - P. C. Jha
- Centre for Applied Chemistry
- Central University of Gujarat
- Gandhinagar
- India
| | - V. K. Jain
- Department of Chemistry
- School of Sciences
- Gujarat University
- Ahmedabad – 380009
- India
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3
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Ruban AV, Rozhenko AB, Pirozhenko VV, Shishkina SV, Shishkin OV, Sikorsky AM, Cherenok SO, Kalchenko VI. Perfluorophenylcalix[4]arenes: prospective hosts for nucleophilic guests. Synthesis, structure and quantum chemical calculations. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.04.083] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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4
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Rueda-Zubiaurre A, Herrero-García N, del Rosario Torres M, Fernández I, Osío Barcina J. Rational Design of a Nonbasic Molecular Receptor for Selective NH4+/K+Complexation in the Gas Phase. Chemistry 2012; 18:16884-9. [DOI: 10.1002/chem.201201642] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 09/16/2012] [Indexed: 11/08/2022]
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5
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Choudhury R, Gupta S, Da Silva JP, Ramamurthy V. Deep-cavity cavitand octa acid as a hydrogen donor: photofunctionalization with nitrenes generated from azidoadamantanes. J Org Chem 2012; 78:1824-32. [PMID: 22931185 DOI: 10.1021/jo301499t] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
1-azidoadamantane and 2-azidoadamantane form a 1:1 complex with hosts octa acid (OA) and cucurbit[7]uril (CB7) in water. Isothermal titration calorimetric measurements suggest these complexes to be very stable in aqueous solution. The complexes have been characterized by (1)H NMR in solution and by ESI-MS in gas phase. In both phases, the complexes are stable. Irradiation of these complexes (λ > 280 nm) results in nitrenes via the loss of nitrogen from the guest azidoadamantanes. The behavior of nitrenes within OA differs from that in solution. Nitrenes included within octa acid attack one of the four tertiary benzylic hydrogens present at the lower interior part of OA. While in solution intramolecular insertion is preferred, within OA intermolecular C-H insertion seems to be the choice. When azidoadamantanes included in CB7 were irradiated (λ > 280 nm) the same products as in solution resulted but the host held them tightly. Displacement of the product required the use of a higher binding guest. In this case, no intermolecular C-H insertion occurred. Difference in reactivity between OA and CB7 is the result of the location of hydrogens; in OA they are in the interior of the cavity where the nitrene is generated, and in CB7 they are at the exterior. Reactivity of nitrenes within OA is different from that of carbenes that do not react with the host.
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Affiliation(s)
- Rajib Choudhury
- Department of Chemistry, University of Miami, Coral Gables, Florida 33124, United States
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Cristaldi DA, Fragalà I, Pappalardo A, Toscano RM, Ballistreri FP, Tomaselli GA, Gulino A. Sensing of linear alkylammonium ions by a 5-pyrenoylamido-calix[5]arene solution and monolayer using luminescence measurements. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c1jm13475b] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Da Silva JP, Kulasekharan R, Cordeiro C, Jockusch S, Turro NJ, Ramamurthy V. Capsular complexes of nonpolar guests with octa amine host detected in the gas phase. Org Lett 2011; 14:560-3. [PMID: 22195767 DOI: 10.1021/ol203139v] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Nanocapsules, made up of the deep cavitand octa amine and several guests, were prepared in aqueous acidic solution and were found to be stable in the gas phase as detected by electrospray ionization mass spectrometry (ESI-MS). The observed gas phase host-guest complexes contained five positive charges and were associated with several acid molecules (HCl or HBr).
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Affiliation(s)
- José P Da Silva
- Centro de Investigação em Química do Algarve, FCT, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal.
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Hemisphere-shaped calixarenes and their analogs: synthesis, structure, and chiral recognition ability. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.04.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Dong YY, Kim TH, Lee CS, Kim HJ, Lee JH, Lee JH, Kim HS, Kim JS. Voltammetric Studies of Diazocalix[4]crown-6 for Metal Ion Sensing. B KOREAN CHEM SOC 2010. [DOI: 10.5012/bkcs.2010.31.12.3549] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Hao C, Turecek F. Host-guest hydrogen atom transfer induced by electron capture. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2009; 20:639-651. [PMID: 19185509 DOI: 10.1016/j.jasms.2008.12.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2008] [Revised: 12/01/2008] [Accepted: 12/01/2008] [Indexed: 05/27/2023]
Abstract
1,n-Alkanediammonium cations in noncovalent complexes with two dibenzo-18-crown-6-ether (DBCE) ligands undergo an unusual intramolecular tandem hydrogen atom and proton transfer to the crown ether ligand upon charge reduction by electron capture. Deuterium labeling established that both migrating hydrogens originated from the ammonium groups. The double hydrogen transfer was found to depend on the length of the alkane chain connecting the ammonium groups. Ab initio calculations provided structures for select alkanediammonium.dibenzo-18-crown-6-ether complexes and dissociation products. This first observation of an intra-complex hydrogen transfer is explained by the unusual electronic properties of the complexes and the substantial hydrogen atom affinity of the aromatic rings in the crown ligand.
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Affiliation(s)
- Changtong Hao
- Department of Chemistry, University of Washington, Seattle, Washington, USA
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11
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Letzel MC, Schäfer C, Novara FR, Speranza M, Rozhenko AB, Schoeller WW, Mattay J. A kinetic study of guest displacement reactions on a host-guest complex with a photoswitchable calixarene. JOURNAL OF MASS SPECTROMETRY : JMS 2008; 43:1553-1564. [PMID: 18698554 DOI: 10.1002/jms.1464] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The displacement processes of several guests, incorporated in a calixarene host system, were investigated in the gas phase by electrospray ionization-Fourier transform-ion cyclotron resonance (ESI-FT-ICR) mass spectrometry. The complexes resulting from a resorcin[4]arene host with ammonia and sec-butylamine guests were isolated in an ICR-cell, separately using both states of the photoswitch as well as two reference systems for the open and closed forms of the photoswitchable host. The isolated complexes were forced to exchange the guest by using methylamine, ethylamine and sec-butylamine, resulting in different reaction rates for all the measured systems. Especially, the reaction rates of both states of the photoswitch are dependent on the provided guest. Potential side effects like proton exchanges were examined by an H/D-exchange experiment. The results were investigated and supported by quantum chemical calculations (DFT).
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Affiliation(s)
- Matthias C Letzel
- Fakultät für Chemie, Universität Bielefeld, Postfach 100131, 33501 Bielefeld, Germany
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Anselmetti D, Bartels FW, Becker A, Decker B, Eckel R, McIntosh M, Mattay J, Plattner P, Ros R, Schäfer C, Sewald N. Reverse engineering of an affinity-switchable molecular interaction characterized by atomic force microscopy single-molecule force spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:1365-1370. [PMID: 18062710 DOI: 10.1021/la702373b] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Tunable and switchable interaction between molecules is a key for regulation and control of cellular processes. The translation of the underlying physicochemical principles to synthetic and switchable functional entities and molecules that can mimic the corresponding molecular functions is called reverse molecular engineering. We quantitatively investigated autoinducer-regulated DNA-protein interaction in bacterial gene regulation processes with single atomic force microscopy (AFM) molecule force spectroscopy in vitro, and developed an artificial bistable molecular host-guest system that can be controlled and regulated by external signals (UV light exposure and thermal energy). The intermolecular binding functionality (affinity) and its reproducible and reversible switching has been proven by AFM force spectroscopy at the single-molecule level. This affinity-tunable optomechanical switch will allow novel applications with respect to molecular manipulation, nanoscale rewritable molecular memories, and/or artificial ion channels, which will serve for the controlled transport and release of ions and neutral compounds in the future.
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Affiliation(s)
- Dario Anselmetti
- Experimental Biophysics & Applied Nanoscience, Department of Physics, Bielefeld University, Bielefeld, Germany.
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Stoll I, Eberhard J, Brodbeck R, Eisfeld W, Mattay J. A New Fluorescent Calix Crown Ether: Synthesis and Complex Formation with Alkali Metal Ions. Chemistry 2008; 14:1155-63. [DOI: 10.1002/chem.200701018] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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14
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Sobransingh D, Dewal MB, Hiller J, Smith MD, Shimizu LS. Inclusion of electrochemically active guests by novel oxacalixarene hosts. NEW J CHEM 2008. [DOI: 10.1039/b709806e] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Lélias-Vanderperre A, Chambron JC, Espinosa E, Terrier P, Leize-Wagner E. Macrotricycles Featuring a π-Basic Tetrahedral Cavity: Preference for NH4+ Detected by Electrospray Ionization Mass Spectrometry. Org Lett 2007; 9:2961-4. [PMID: 17608430 DOI: 10.1021/ol070498a] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Cation-pi interactions play an important role in biology. The title compounds are C3-symmetric macrotricycles built from resorcinol, a pi electron-rich arene. They were prepared in up to 18% yield by intramolecular cyclization of 1,3,5-trisubstituted benzene tripods bearing pendant resorcinol groups, with methylene acetal bridges. Positive ESI-MS showed that these receptors recognize NH4+ over K+, and poorly respond to the large t-BuNH3+ cation, suggesting that they bind NH4+ intramolecularly, presumably via cation-pi interactions.
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Affiliation(s)
- Anne Lélias-Vanderperre
- Université de Bourgogne, Laboratoire d'Ingénierie Moléculaire pour la Reconnaissance et la Séparation des Métaux et des Molécules (ICMUB, UMR CNRS n 5260), 9 avenue Alain Savary, BP 47870, 21078 Dijon, France
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16
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Schäfer C, Eckel R, Ros R, Mattay J, Anselmetti D. Photochemical Single-Molecule Affinity Switch. J Am Chem Soc 2007; 129:1488-9. [PMID: 17249675 DOI: 10.1021/ja067734h] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Christian Schäfer
- Organic Chemistry I, Department of Chemistry, Experimental Biophysics & Applied Nanosciences, Bielefeld University, Universitätsstrasse 25, 33615 Bielefeld, Germany
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