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Gallegos M, Vassilev-Galindo V, Poltavsky I, Martín Pendás Á, Tkatchenko A. Explainable chemical artificial intelligence from accurate machine learning of real-space chemical descriptors. Nat Commun 2024; 15:4345. [PMID: 38773090 DOI: 10.1038/s41467-024-48567-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 04/24/2024] [Indexed: 05/23/2024] Open
Abstract
Machine-learned computational chemistry has led to a paradoxical situation in which molecular properties can be accurately predicted, but they are difficult to interpret. Explainable AI (XAI) tools can be used to analyze complex models, but they are highly dependent on the AI technique and the origin of the reference data. Alternatively, interpretable real-space tools can be employed directly, but they are often expensive to compute. To address this dilemma between explainability and accuracy, we developed SchNet4AIM, a SchNet-based architecture capable of dealing with local one-body (atomic) and two-body (interatomic) descriptors. The performance of SchNet4AIM is tested by predicting a wide collection of real-space quantities ranging from atomic charges and delocalization indices to pairwise interaction energies. The accuracy and speed of SchNet4AIM breaks the bottleneck that has prevented the use of real-space chemical descriptors in complex systems. We show that the group delocalization indices, arising from our physically rigorous atomistic predictions, provide reliable indicators of supramolecular binding events, thus contributing to the development of Explainable Chemical Artificial Intelligence (XCAI) models.
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Affiliation(s)
- Miguel Gallegos
- Department of Analytical and Physical Chemistry, University of Oviedo, E-33006, Oviedo, Spain
| | | | - Igor Poltavsky
- Department of Physics and Materials Science, University of Luxembourg, L-1511, Luxembourg City, Luxembourg
| | - Ángel Martín Pendás
- Department of Analytical and Physical Chemistry, University of Oviedo, E-33006, Oviedo, Spain.
| | - Alexandre Tkatchenko
- Department of Physics and Materials Science, University of Luxembourg, L-1511, Luxembourg City, Luxembourg.
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2
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Davis F, Higson SPJ. Synthetic Receptors for Early Detection and Treatment of Cancer. BIOSENSORS 2023; 13:953. [PMID: 37998127 PMCID: PMC10669836 DOI: 10.3390/bios13110953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/10/2023] [Accepted: 10/22/2023] [Indexed: 11/25/2023]
Abstract
Over recent decades, synthetic macrocyclic compounds have attracted interest from the scientific community due to their ability to selectively and reversibly form complexes with a huge variety of guest moieties. These molecules have been studied within a wide range of sensing and other fields. Within this review, we will give an overview of the most common synthetic macrocyclic compounds including cyclodextrins, calixarenes, calixresorcinarenes, pillarenes and cucurbiturils. These species all display the ability to form a wide range of complexes. This makes these compounds suitable in the field of cancer detection since they can bind to either cancer cell surfaces or indeed to marker compounds for a wide variety of cancers. The formation of such complexes allows sensitive and selective detection and quantification of such guests. Many of these compounds also show potential for the detection and encapsulation of environmental carcinogens. Furthermore, many anti-cancer drugs, although effective in in vitro tests, are not suitable for use directly for cancer treatment due to low solubility, inherent instability in in vivo environments or an inability to be adsorbed by or transported to the required sites for treatment. The reversible encapsulation of these species in a macrocyclic compound can greatly improve their solubility, stability and transport to required sites where they can be released for maximum therapeutic effect. Within this review, we intend to present the use of these species both in cancer sensing and treatment. The various macrocyclic compound families will be described, along with brief descriptions of their synthesis and properties, with an outline of their use in cancer detection and usage as therapeutic agents. Their use in the sensing of environmental carcinogens as well as their potential utilisation in the clean-up of some of these species will also be discussed.
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Affiliation(s)
| | - Séamus P. J. Higson
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, Cambridge CB3 0AS, UK;
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3
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Association Complexes of Calix[6]arenes with Amino Acids Explained by Energy-Partitioning Methods. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227938. [PMID: 36432040 PMCID: PMC9699162 DOI: 10.3390/molecules27227938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/09/2022] [Accepted: 11/09/2022] [Indexed: 11/18/2022]
Abstract
Intermolecular complexes with calixarenes are intriguing because of multiple possibilities of noncovalent binding for both polar and nonpolar molecules, including docking in the calixarene cavity. In this contribution calix[6]arenes interacting with amino acids are studied with an additional aim to show that tools such as symmetry-adapted perturbation theory (SAPT), functional-group SAPT (F-SAPT), and systematic molecular fragmentation (SMF) methods may provide explanations for different numbers of noncovalent bonds and of their varying strength for various calixarene conformers and guest molecules. The partitioning of the interaction energy provides an easy way to identify hydrogen bonds, including those with unconventional hydrogen acceptors, as well as other noncovalent bonds, and to find repulsive destabilizing interactions between functional groups. Various other features can be explained by energy partitioning, such as the red shift of an IR stretching frequency for some hydroxy groups, which arises from their attraction to the phenyl ring of calixarene. Pairs of hydrogen bonds and other noncovalent bonds of similar magnitude found by F-SAPT explain an increase in the stability of both inclusion and outer complexes.
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4
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Theoretical studies of calixarene derivatives as receptors for transition metals. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.140210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Messiad FA, Ammouchi N, Belhocine Y, Alhussain H, Ghoniem MG, Said RB, Ali FAM, Rahali S. In Search of Preferential Macrocyclic Hosts for Sulfur Mustard Sensing and Recognition: A Computational Investigation through the New Composite Method r2SCAN-3c of the Key Factors Influencing the Host-Guest Interactions. NANOMATERIALS 2022; 12:nano12152517. [PMID: 35893486 PMCID: PMC9329917 DOI: 10.3390/nano12152517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/18/2022] [Accepted: 07/19/2022] [Indexed: 11/29/2022]
Abstract
Sulfur mustard (SM) is a harmful warfare agent that poses a serious threat to human health and the environment. Thus, the design of porous materials capable of sensing and/or capturing SM is of utmost importance. In this paper, the interactions of SM and its derivatives with ethylpillar[5]arene (EtP[5]) and the interactions between SM and a variety of host macrocycles were investigated through molecular docking calculations and non-covalent interaction (NCI) analysis. The electronic quantum parameters were computed to assess the chemical sensing properties of the studied hosts toward SM. It was found that dispersion interactions contributed significantly to the overall complexation energy, leading to the stabilization of the investigated systems. DFT energy computations showed that SM was more efficiently complexed with DCMP[5] than the other hosts studied here. Furthermore, the studied macrocyclic containers could be used as host-based chemical sensors or receptors for SM. These findings could motivate experimenters to design efficient sensing and capturing materials for the detection of SM and its derivatives.
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Affiliation(s)
- Fatine Ali Messiad
- Department of Process Engineering, Faculty of Technology, Université 20 Août 1955, El Hadaik Road, Skikda 21000, Algeria;
- LRPCSI-Laboratoire de Recherche sur la Physico-Chimie des Surfaces et Interfaces, Université 20 Août 1955, Skikda 21000, Algeria
| | - Nesrine Ammouchi
- LRPCSI-Laboratoire de Recherche sur la Physico-Chimie des Surfaces et Interfaces, Université 20 Août 1955, Skikda 21000, Algeria
- Département de Technologie, Faculté de Technologie, Université 20 Août 1955, B.P. 26, Route d’El Hadaiek, Skikda 21000, Algeria
- Correspondence: (N.A.); (Y.B.); (S.R.)
| | - Youghourta Belhocine
- Department of Process Engineering, Faculty of Technology, Université 20 Août 1955, El Hadaik Road, Skikda 21000, Algeria;
- Correspondence: (N.A.); (Y.B.); (S.R.)
| | - Hanan Alhussain
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11432, Saudi Arabia; (H.A.); (M.G.G.); (F.A.M.A.)
| | - Monira Galal Ghoniem
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11432, Saudi Arabia; (H.A.); (M.G.G.); (F.A.M.A.)
| | - Ridha Ben Said
- Department of Chemistry, College of Science and Arts, Qassim University, P.O. 53, Ar Rass 51921, Saudi Arabia;
- Laboratoire de Caractérisations, Applications et Modélisations des Matériaux, Faculté des Sciences de Tunis, Université Tunis El Manar, Tunis 2092, Tunisia
| | - Fatima Adam Mohamed Ali
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11432, Saudi Arabia; (H.A.); (M.G.G.); (F.A.M.A.)
| | - Seyfeddine Rahali
- Department of Chemistry, College of Science and Arts, Qassim University, P.O. 53, Ar Rass 51921, Saudi Arabia;
- Correspondence: (N.A.); (Y.B.); (S.R.)
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6
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Bhattacharya S, Barba-Bon A, Zewdie TA, Müller AB, Nisar T, Chmielnicka A, Rutkowska IA, Schürmann CJ, Wagner V, Kuhnert N, Kulesza PJ, Nau WM, Kortz U. Discrete, Cationic Palladium(II)-Oxo Clusters via f-Metal Ion Incorporation and their Macrocyclic Host-Guest Interactions with Sulfonatocalixarenes. Angew Chem Int Ed Engl 2022; 61:e202203114. [PMID: 35384204 PMCID: PMC9324968 DOI: 10.1002/anie.202203114] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Indexed: 12/28/2022]
Abstract
We report on the discovery of the first two examples of cationic palladium(II)‐oxo clusters (POCs) containing f‐metal ions, [PdII6O12M8{(CH3)2AsO2}16(H2O)8]4+ (M=CeIV, ThIV), and their physicochemical characterization in the solid state, in solution and in the gas phase. The molecular structure of the two novel POCs comprises an octahedral {Pd6O12}12− core that is capped by eight MIV ions, resulting in a cationic, cubic assembly {Pd6O12MIV8}20+, which is coordinated by a total of 16 terminal dimethylarsinate and eight water ligands, resulting in the mixed PdII‐CeIV/ThIV oxo‐clusters [PdII6O12M8{(CH3)2AsO2}16(H2O)8]4+ (M=Ce, Pd6Ce8; Th, Pd6Th8). We have also studied the formation of host‐guest inclusion complexes of Pd6Ce8 and Pd6Th8 with anionic 4‐sulfocalix[n]arenes (n=4, 6, 8), resulting in the first examples of discrete, enthalpically‐driven supramolecular assemblies between large metal‐oxo clusters and calixarene‐based macrocycles. The POCs were also found to be useful as pre‐catalysts for electrocatalytic CO2‐reduction and HCOOH‐oxidation.
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Affiliation(s)
- Saurav Bhattacharya
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759, Bremen, Germany
| | - Andrea Barba-Bon
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759, Bremen, Germany
| | - Tsedenia A Zewdie
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759, Bremen, Germany
| | - Anja B Müller
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759, Bremen, Germany
| | - Talha Nisar
- Department of Physics and Earth Sciences, Jacobs University, Campus Ring 1, 28759, Bremen, Germany
| | - Anna Chmielnicka
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
| | - Iwona A Rutkowska
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
| | | | - Veit Wagner
- Department of Physics and Earth Sciences, Jacobs University, Campus Ring 1, 28759, Bremen, Germany
| | - Nikolai Kuhnert
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759, Bremen, Germany
| | - Pawel J Kulesza
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland
| | - Werner M Nau
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759, Bremen, Germany
| | - Ulrich Kortz
- Department of Life Sciences and Chemistry, Jacobs University, Campus Ring 1, 28759, Bremen, Germany
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7
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Xiong S, Nanda Kishore M, Zhou W, He Q. Recent advances in selective recognition of fluoride with macrocyclic receptors. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214480] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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8
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The bisbenzothiazole-p-tert-butylcalix[4]arene-thiourea Langmuir–Blodgett thin films: preparation, optical properties, swelling dynamics and gas sensing properties via host–guest principles. J INCL PHENOM MACRO 2022. [DOI: 10.1007/s10847-022-01142-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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9
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Bhattacharya S, Barba‐Bon A, Zewdie TA, Müller AB, Nisar T, Chmielnicka A, Rutkowska IA, Schürmann CJ, Wagner V, Kuhnert N, Kulesza PJ, Nau WM, Kortz U. Discrete, Cationic Palladium(II)‐Oxo Clusters via f‐Metal Ion Incorporation and their Macrocyclic Host‐Guest Interactions with Sulfonatocalixarenes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Saurav Bhattacharya
- Department of Life Sciences and Chemistry Jacobs University Campus Ring 1 28759 Bremen Germany
| | - Andrea Barba‐Bon
- Department of Life Sciences and Chemistry Jacobs University Campus Ring 1 28759 Bremen Germany
| | - Tsedenia A. Zewdie
- Department of Life Sciences and Chemistry Jacobs University Campus Ring 1 28759 Bremen Germany
| | - Anja B. Müller
- Department of Life Sciences and Chemistry Jacobs University Campus Ring 1 28759 Bremen Germany
| | - Talha Nisar
- Department of Physics and Earth Sciences Jacobs University Campus Ring 1 28759 Bremen Germany
| | - Anna Chmielnicka
- Faculty of Chemistry University of Warsaw Pasteura 1 02-093 Warsaw Poland
| | - Iwona A. Rutkowska
- Faculty of Chemistry University of Warsaw Pasteura 1 02-093 Warsaw Poland
| | | | - Veit Wagner
- Department of Physics and Earth Sciences Jacobs University Campus Ring 1 28759 Bremen Germany
| | - Nikolai Kuhnert
- Department of Life Sciences and Chemistry Jacobs University Campus Ring 1 28759 Bremen Germany
| | - Pawel J. Kulesza
- Faculty of Chemistry University of Warsaw Pasteura 1 02-093 Warsaw Poland
| | - Werner M. Nau
- Department of Life Sciences and Chemistry Jacobs University Campus Ring 1 28759 Bremen Germany
| | - Ulrich Kortz
- Department of Life Sciences and Chemistry Jacobs University Campus Ring 1 28759 Bremen Germany
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10
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Castillo-Aguirre A, Maldonado M, Esteso MA. Removal of Toxic Metal Ions Using Poly(BuMA–co–EDMA) Modified with C-Tetra(nonyl)calix[4]resorcinarene. TOXICS 2022; 10:toxics10050204. [PMID: 35622617 PMCID: PMC9145833 DOI: 10.3390/toxics10050204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 04/16/2022] [Accepted: 04/17/2022] [Indexed: 02/01/2023]
Abstract
A copolymer of poly(BuMA–co–EDMA) modified with C-tetra(nonyl)calix[4]resorcinarene was obtained via the impregnation method. The formation of the modified copolymer was confirmed and investigated using various techniques; in this way, the presence of calix[4]resorcinarene was confirmed by FT-IR spectroscopy and by high resolution transmission electron microscopy. The modified copolymer was used for the removal of highly toxic cations (Pb2+, Hg2+, and Cd2+) from aqueous solutions. To perform the removal, we used the batch sorption technique and the effects of time of contact, pH, and volume of sample on the effective sorption were determined. The best results were observed for Pb2+ extraction, which was comparatively more efficient. Adsorption–desorption experiments revealed that the modified copolymer could be used for several cycles without significant loss of adsorption capacity. Finally, the results showed that the modified copolymer application is highly efficient for the removal of lead ions from aqueous solutions.
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Affiliation(s)
- Alver Castillo-Aguirre
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia-Sede Bogotá, 30 No. 45-03 Carrera, Bogotá 111321, Colombia;
| | - Mauricio Maldonado
- Departamento de Química, Facultad de Ciencias, Universidad Nacional de Colombia-Sede Bogotá, 30 No. 45-03 Carrera, Bogotá 111321, Colombia;
- Correspondence: (M.M.); (M.A.E.)
| | - Miguel A. Esteso
- Universidad Católica de Ávila, 05005 Ávila, Calle los Canteros s/n, Spain
- U.D. Química Física, Universidad de Alcalá, 28805 Alcalá de Henares, Madrid, Spain
- Correspondence: (M.M.); (M.A.E.)
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11
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Doll M, Berthault P, Léonce E, Boutin C, Jeanneau E, Brotin T, De Rycke N. Study of syn and anti Xenon-Cryptophanes Complexes Decorated with Aromatic Amine Groups: Chemical Platforms for Accessing New Cryptophanes. J Org Chem 2022; 87:2912-2920. [PMID: 35080182 DOI: 10.1021/acs.joc.1c02774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the synthesis of C3-symmetric cryptophanes decorated with three aromatic amine groups on the same CTB cap and their interaction with xenon. The relative stereochemistry of these two stereoisomers syn and anti was assessed thanks to the determination of the X-ray structure of an intermediate compound. As previously observed with the tris-aza-cryptophanes analogs anti-1 and syn-2 (J. Org. Chem. 2021, 86, 11, 7648-7658), both compounds anti-5 and syn-6 show a slow in-out exchange dynamics of xenon at 11.7 T. Our work supports the idea that the presence of nitrogen atoms grafted directly onto the cryptophane backbone has a strong impact on the in-out exchange dynamics of xenon whatever their stereochemistry. This result contrasts with the case of other cryptophanes decorated solely with methoxy substituents. Finally, we demonstrate that these new derivatives can be used to design new anti/syn cryptophanes bearing suitable ligands in order to constitute potent 129Xe NMR-based sensors. An example is reported here with the synthesis of the tris-iodo derivatives anti-13 and syn-14 from compounds anti-5 and syn-6.
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Affiliation(s)
- Martin Doll
- Laboratoire de Chimie, Université de Lyon, ENS de Lyon, CNRS UMR 5182, F69342 Lyon, France
| | - Patrick Berthault
- NIMBE, CEA, CNRS, Université de Paris Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
| | - Estelle Léonce
- NIMBE, CEA, CNRS, Université de Paris Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
| | - Céline Boutin
- NIMBE, CEA, CNRS, Université de Paris Saclay, CEA Saclay, 91191 Gif-sur-Yvette, France
| | - Erwann Jeanneau
- Centre de Diffractométrie Henri Longchambon, Université de Lyon 1, 5 rue la Doua, 69100 Villeurbanne, France
| | - Thierry Brotin
- Laboratoire de Chimie, Université de Lyon, ENS de Lyon, CNRS UMR 5182, F69342 Lyon, France
| | - Nicolas De Rycke
- Laboratoire de Chimie, Université de Lyon, ENS de Lyon, CNRS UMR 5182, F69342 Lyon, France
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12
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Jin Mei C, Ainliah Alang Ahmad S. A review on the determination heavy metals ions using calixarene-based electrochemical sensors. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103303] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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13
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Kumar A, Sardhalia V, Sahoo PR, Kumar A, Kumar S. Structure analysis and evaluation of two probes for the colorimetric detection of Hg2+ and turn-on fluorescence-based detection of Cd2+ ions in an aqueous solution. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130233] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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14
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Durmaz M, Acikbas Y, Bozkurt S, Capan R, Erdogan M, Ozkaya C. A Novel Calix[4]arene Thiourea Decorated with 2‐(2‐Aminophenyl)benzothiazole Moiety as Highly Selective Chemical Gas Sensor for Dichloromethane Vapor. ChemistrySelect 2021. [DOI: 10.1002/slct.202100631] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mustafa Durmaz
- Department of Basic Sciences Faculty of Engineering Necmettin Erbakan University 42140 Konya Turkey
| | - Yaser Acikbas
- Department of Materials Science and Nanotechnology Engineering Faculty of Engineering Usak University 64200 Usak Turkey
| | - Selahattin Bozkurt
- Department of Chemistry Scientific Analysis Technological Application and Research Center Usak University 64200 Usak Turkey
- Department of Medical Laboratory Techniques Vocational School of Health Services Usak University 64200 Usak Turkey
| | - Rifat Capan
- Department of Physics Faculty of Science University of Balıkesir 10145 Balıkesir Turkey
| | - Matem Erdogan
- Department of Physics Faculty of Science University of Balıkesir 10145 Balıkesir Turkey
| | - Cansu Ozkaya
- Department of Physics Faculty of Science University of Balıkesir 10145 Balıkesir Turkey
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15
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Palladium induced activation of a substituted naphthopyran for smartphone assisted sensitive and selective sensing in aqueous solution. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129282] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Şen S, Davis F, Çapan R, Özbek Z, Özel ME, Stanciu GA. A macrocyclic tetra-undecyl calix[4]resorcinarene thin film receptor for chemical vapour sensor applications. J INCL PHENOM MACRO 2020. [DOI: 10.1007/s10847-020-01024-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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17
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Acikbas Y, Tetik GD, Ozkaya C, Bozkurt S, Capan R, Erdogan M. Developing of N-(4-methylpyrimidine-2-yl)methacrylamide Langmuir-Blodgett thin film chemical sensor via quartz crystal microbalance technique. Microsc Res Tech 2020; 83:1198-1207. [PMID: 32483896 DOI: 10.1002/jemt.23511] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 05/01/2020] [Accepted: 05/02/2020] [Indexed: 11/07/2022]
Abstract
In the present work, the characterization and gas sensing properties of newly synthesized N-(4-methylpyrimidine-2-yl)methacrylamide (N-MPMA) monomer Langmuir-Blodgett (LB) thin films were investigated. The UV-visible spectroscopy, quartz crystal microbalance (QCM), and atomic force microscopy were utilized to characterize N-MPMA LB thin films. The surface behavior of N-MPMA monolayer was stable and allowed an effective transfer at a surface pressure of 14 mN/m. The mass change/unit area value of the N-MPMA LB thin film deposited quartz crystal surfaces was investigated. The amount of N-MPMA LB thin film deposited on the substrate for bilayer was calculated as 228.72 ng (86.31 ng/mm2 ) and 12.5 Hz frequency shift was observed for each layer of the N-MPMA film. The kinetic responses of N-MPMA LB film against chloroform, dichloromethane, benzene, and toluene were measured via QCM system at room temperature. N-MPMA QCM sensor results displayed that chloroform has the largest frequency shifts compared with the other vapors used in the present work and these results can be illuminating in terms of physical properties of organic vapors.
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Affiliation(s)
- Yaser Acikbas
- Department of Material Science and Nanotechnology Engineering, Faculty of Engineering, Uşak University, Uşak, Turkey
| | - Gamze D Tetik
- Department of Material Science and Nanotechnology Engineering, Faculty of Engineering, Uşak University, Uşak, Turkey
| | - Cansu Ozkaya
- Department of Physics, Faculty of Science, Balikesir University, Balikesir, Turkey
| | - Selahattin Bozkurt
- Scientific Analysis Technological Application and Research Center, Uşak University, Uşak, Turkey.,Department of Medical Services and Techniques, Vocational School of Health Services, Uşak University, Uşak, Turkey
| | - Rifat Capan
- Department of Physics, Faculty of Science, Balikesir University, Balikesir, Turkey.,Renewable Energy Research, Application and Development Center, Balikesir University, Balikesir, Turkey
| | - Matem Erdogan
- Department of Physics, Faculty of Science, Balikesir University, Balikesir, Turkey
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18
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Experimental Comparative Study of Dynamic Behavior in Solution Phase of C-Tetra(phenyl)resorcin[4]arene and C-Tetra(phenyl)pyrogallol[4]arene. Molecules 2020; 25:molecules25102275. [PMID: 32408559 PMCID: PMC7287697 DOI: 10.3390/molecules25102275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/25/2020] [Accepted: 05/08/2020] [Indexed: 11/24/2022] Open
Abstract
The synthesis of phenyl-resorcinarenes and pyrogallolarenes is known to produce a conformational mixture of cone and chair isomers. Depending on the synthesis conditions the composition of the conformational mixture is variable; however, the cone conformer is the greatest proportion of phenyl-resorcin[4]arenes and chair conformer of pyrogallol[4]arenes. The experimental evidence suggests that phenyl-substituted resorcinarene and pyrogallolarene exist as a dynamic boat in solution.
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Kumar A, Kumar A, Sahoo PR, Kumar S. A light controlled, reversible, sensitive and highly selective colorimetric sensor for mercuric ions in water. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127702] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Affiliation(s)
- Bailey Phillips
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, China
- Department of Chemistry, Texas A&M University, College Station, TX, USA
| | - Sarbajit Banerjee
- Department of Chemistry, Texas A&M University, College Station, TX, USA
| | - Xinman Tu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, China
| | - Lei Fang
- Department of Chemistry, Texas A&M University, College Station, TX, USA
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Inter and intra-phase conformerism in two calix [4]arenes. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.07.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Selective adsorption of BTEX on calixarene-based molecular coordination network determined by 13C NMR spectroscopy. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.04.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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A novel triazine‒bearing calix[4]arene: Design, synthesis and gas sensing affinity for volatile organic compounds. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.03.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Fracaroli AM, de Rossi RH. Supramolecular Chemistry in Solid State Materials such as Metal‐Organic Frameworks. Isr J Chem 2018. [DOI: 10.1002/ijch.201800114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alejandro M. Fracaroli
- Instituto de Investigaciones en Físicoquímica de Córdoba, INFIQC-CONICET, Facultad de Ciencias Químicas, Departamento de Química Orgánica Universidad Nacional de Córdoba, Ciudad Universitaria X5000HUA Córdoba Argentina
| | - Rita H. de Rossi
- Instituto de Investigaciones en Físicoquímica de Córdoba, INFIQC-CONICET, Facultad de Ciencias Químicas, Departamento de Química Orgánica Universidad Nacional de Córdoba, Ciudad Universitaria X5000HUA Córdoba Argentina
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Puttreddy R, Beyeh NK, Taimoory SM, Meister D, Trant JF, Rissanen K. Host-guest complexes of conformationally flexible C-hexyl-2-bromoresorcinarene and aromatic N-oxides: solid-state, solution and computational studies. Beilstein J Org Chem 2018; 14:1723-1733. [PMID: 30112077 PMCID: PMC6071688 DOI: 10.3762/bjoc.14.146] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 06/19/2018] [Indexed: 01/27/2023] Open
Abstract
Host-guest complexes of C-hexyl-2-bromoresorcinarene (BrC6) with twelve potential aromatic N-oxide guests were studied using single crystal X-ray diffraction analysis and 1H NMR spectroscopy. In the solid state, of the nine obtained X-ray crystal structures, eight were consistent with the formation of BrC6-N-oxide endo complexes. The lone exception was from the association between 4-phenylpyridine N-oxide and BrC6, in that case the host forms a self-inclusion complex. BrC6, as opposed to more rigid previously studied C-ethyl-2-bromoresorcinarene and C-propyl-2-bromoresorcinarene, undergoes remarkable cavity conformational changes to host different N-oxide guests through C-H···π(host) interactions. In solution phase CD3OD/CDCl3 (1:1 v/v), all twelve N-oxide guests form endo complexes according to 1H NMR; however, in more polar CD3OD/DMSO-d6 (9:1 v/v), only three N-oxides with electron-donating groups form solution-phase endo complexes with BrC6. In solid-state studies, 3-methylpyridine N-oxide+BrC6 crystallises with both the upper- and lower-rim BrC6 cavities occupied by N-oxide guests. Computational DFT-based studies support that lower-rim long hexyl chains provide the additional stability required for this ditopic behaviour. The lower-rim cavity, far from being a neutral hydrophobic environment, is a highly polarizable electrostatically positive surface, aiding in the binding of polar guests such as N-oxides.
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Affiliation(s)
- Rakesh Puttreddy
- University of Jyvaskyla, Department of Chemistry, P. O. Box 35, 40014 Jyväskylä, Finland
| | - Ngong Kodiah Beyeh
- Department of Chemistry, Oakland University, 146 Library Drive, Rochester, Michigan 48309-4479, USA
- Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, N9B 3P4, Canada
| | - S Maryamdokht Taimoory
- Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, N9B 3P4, Canada
| | - Daniel Meister
- Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, N9B 3P4, Canada
| | - John F Trant
- Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, N9B 3P4, Canada
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, P. O. Box 35, 40014 Jyväskylä, Finland
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Pattabiraman M, Sivaguru J, Ramamurthy V. Cucurbiturils as Reaction Containers for Photocycloaddition of Olefins. Isr J Chem 2017. [DOI: 10.1002/ijch.201700100] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Jayaraman Sivaguru
- Department of Chemistry and Center for Photochemical Sciences Bowling Green State University Bowling Green, OH USA
| | - V. Ramamurthy
- Department of Chemistry University of Miami Coral Gables, FL USA
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Pinalli R, Pedrini A, Dalcanale E. Environmental Gas Sensing with Cavitands. Chemistry 2017; 24:1010-1019. [PMID: 28949043 DOI: 10.1002/chem.201703630] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Indexed: 11/10/2022]
Abstract
Environmental gas sensing needs stringent sensor requirements in terms of sensitivity, selectivity and ruggedness. One of the major issues to be addressed is combining in a single device the conflicting requirements of molecular-level selectivity and low-ppb sensitivity. The exploitation of synthetic molecular receptors as sensing materials is particularly attractive to address the selectivity issue, to single out the desired analytes in the presence of overwhelming amounts of interferents. This minireview summarizes the strategies in environmental gas and vapor sensing using molecular receptors as selective hosts for specific analytes, with the main focus on cavitands. In particular, we highlight the use of these macrocycles as selective preconcentrator units to be integrated into portable devices for environmental monitoring. Depending on the class of analytes to be detected, the molecular recognition properties of cavitands can be manipulated through the proper choice of the bridging groups at the upper rim, and their transducer integration can be implemented through the manifold functionalization options at the lower rim.
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Affiliation(s)
- Roberta Pinalli
- Department of Chemistry, Life Science and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
| | - Alessandro Pedrini
- Department of Chemistry, Life Science and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
| | - Enrico Dalcanale
- Department of Chemistry, Life Science and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
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