1
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Valentini M, Ercolani G, Di Stefano S. Kinetic Trapping of an Out-of-Equilibrium Dynamic Library of Imines by Changing Solvent. Chemistry 2024; 30:e202401104. [PMID: 38584126 DOI: 10.1002/chem.202401104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/04/2024] [Accepted: 04/07/2024] [Indexed: 04/09/2024]
Abstract
A well-behaved dynamic library composed of two imines and corresponding amines was subjected to the action of an activated carboxylic acid (ACA), whose decarboxylation is known to be base promoted, in different solvents, namely CD2Cl2, CD3CN, and mixtures of them. Two non-equilibrium systems are consequently obtained: i) a dissipative (CD2Cl2) and ii) an out-of-equilibrium (CD3CN) dynamic library whose composition goes back to equilibrium after a given time. In the former case, the library is fully coupled with the decarboxylation of the ACA, while in the latter, an energy ratchet operates. In the mixed solvents, the library exhibits a mediated behavior. Interestingly, in the presence of an excess of added ACA, the different behavior of the imine library in the two solvents is expected to manifest only when the excess acid is consumed.
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Affiliation(s)
- Matteo Valentini
- Department of Chemistry, Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma -, Meccanismi di Reazione, P.le A. Moro 5, I-00185, Roma, Italy
| | - Gianfranco Ercolani
- Department of Chemical Science and Technology, Università di Roma Tor Vergata, Via della Ricerca Scientifica, I-00133, Roma, Italy
| | - Stefano Di Stefano
- Department of Chemistry, Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma -, Meccanismi di Reazione, P.le A. Moro 5, I-00185, Roma, Italy
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2
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Del Giudice D, Valentini M, Sappino C, Spatola E, Murru A, Ercolani G, Di Stefano S. Controlling the Conformation of 2-Dimethylaminobiphenyls by Transient Intramolecular Hydrogen Bonding. J Org Chem 2023; 88:4379-4386. [PMID: 36926894 DOI: 10.1021/acs.joc.2c02992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Temporal control of molecular motions is receiving increasing attention because it is central to the development of molecular switches and motors and nanoscopic materials with life-like properties. Inspired by previous studies, here, we report that acid 12 can be used to temporally control the conformational freedom around the C-C bond connecting the two aromatic rings of the ditopic bases 4 and 5. Consistent with NMR measurements and DFT calculations, before fuel addition, the conformational motion of the two aromatic rings of both 4 and 5 mainly consists of a large amplitude torsional oscillation spanning about 260° and passing for the anti conformation (the two nitrogen atoms at opposite sides). Immediately after the addition of 12, due to the protonation of one nitrogen and consequent formation of an N-H···N intramolecular hydrogen bond, the torsional oscillation in both 4H+ and 5H+ is not only restricted to a smaller range (about 100°) but explores the previously forbidden conformational space around the syn conformation (the two nitrogen atoms at the same side). However, the new state is an out-of-equilibrium state since decarboxylation of the conjugate base of 12 takes place and, at the end of the process, the system reverts to the more conformationally mobile state.
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Affiliation(s)
- Daniele Del Giudice
- Dipartimento di Chimica, Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, I-00185 Roma, Italy
| | - Matteo Valentini
- Dipartimento di Chimica, Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, I-00185 Roma, Italy
| | - Carla Sappino
- Dipartimento di Chimica, Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, I-00185 Roma, Italy
| | - Emanuele Spatola
- Dipartimento di Chimica, Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, I-00185 Roma, Italy
| | - Aurora Murru
- Dipartimento di Chimica, Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, I-00185 Roma, Italy
| | - Gianfranco Ercolani
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Via della Ricerca Scientifica, 00133 Roma, Italy
| | - Stefano Di Stefano
- Dipartimento di Chimica, Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, I-00185 Roma, Italy
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3
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Del Giudice D, Di Stefano S. Dissipative Systems Driven by the Decarboxylation of Activated Carboxylic Acids. Acc Chem Res 2023; 56:889-899. [PMID: 36916734 PMCID: PMC10077594 DOI: 10.1021/acs.accounts.3c00047] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
ConspectusThe achievement of artificial systems capable of being maintained in out-of-equilibrium states featuring functional properties is a main goal of current chemical research. Absorption of electromagnetic radiation or consumption of a chemical species (a "chemical fuel") are the two strategies typically employed to reach such out-of-equilibrium states, which have to persist as long as one of the above stimuli is present. For this reason such systems are often referred to as "dissipative systems". In the simplest scheme, the dissipative system is initially found in a resting, equilibrium state. The addition of a chemical fuel causes the system to shift to an out-of-equilibrium state. When the fuel is exhausted, the system reverts to the initial, equilibrium state. Thus, from a mechanistic standpoint, the dissipative system turns out to be a catalyst for the fuel consumption. It has to be noted that, although very simple, this scheme implies the chance to temporally control the dissipative system. In principle, modulating the nature and/or the amount of the chemical fuel added, one can have full control of the time spent by the system in the out-of-equilibrium state.In 2016, we found that 2-cyano-2-phenylpropanoic acid (1a), whose decarboxylation proceeds smoothly under mild basic conditions, could be used as a chemical fuel to drive the back and forth motion of a catenane-based molecular switch. The acid donates a proton to the catenane that passes from the neutral state A to the transient protonated state B. Decarboxylation of the resulting carboxylate (1acb), generates a carbanion, which, being a strong base, retakes the proton from the protonated catenane that, consequently, returns to the initial state A. The larger the amount of the added fuel, the longer the time spent by the catenane in the transient, out-of-equilibrium state. Since then, acid 1a and other activated carboxylic acids (ACAs) have been used to drive the operation of a large number of dissipative systems based on the acid-base reaction, from molecular machines to host-guest systems, from catalysts to smart materials, and so on. This Account illustrates such systems with the purpose to show the wide applicability of ACAs as chemical fuels. This generality is due to the simplicity of the idea underlying the operation principle of ACAs, which always translates into simple experimental requirements.
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Affiliation(s)
- Daniele Del Giudice
- Dipartimento di Chimica and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, Università degli Studi di Roma "La Sapienza", P.le A. Moro 5, 00185 Rome, Italy
| | - Stefano Di Stefano
- Dipartimento di Chimica and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, Università degli Studi di Roma "La Sapienza", P.le A. Moro 5, 00185 Rome, Italy
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4
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Fusi G, Del Giudice D, Skarsetz O, Di Stefano S, Walther A. Autonomous Soft Robots Empowered by Chemical Reaction Networks. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2209870. [PMID: 36420882 DOI: 10.1002/adma.202209870] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/21/2022] [Indexed: 06/16/2023]
Abstract
Hydrogel actuators are important for designing stimuli-sensitive soft robots. They generate mechanical motion by exploiting compartmentalized (de)swelling in response to a stimulus. However, classical switching methods, such as manually lowering or increasing the pH, cannot provide more complex autonomous motions. By coupling an autonomously operating pH-flip with programmable lifetimes to a hydrogel system containing pH-responsive and non-responsive compartments, autoonenomous forward and backward motion as well as more complex tasks, such as interlocking of "puzzle pieces" and collection of objects are realized. All operations are initiated by one simple trigger, and the devices operate in a "fire and forget" mode. More complex self-regulatory behavior is obtained by adding chemo-mechano-chemo feedback mechanisms. Due to its simplicity, this method shows great potential for the autonomous operation of soft grippers and metamaterials.
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Affiliation(s)
- Giorgio Fusi
- Life-Like Materials and Systems, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Daniele Del Giudice
- Dipartimento di Chimica Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, Roma, I-00185, Italy
| | - Oliver Skarsetz
- Life-Like Materials and Systems, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Stefano Di Stefano
- Dipartimento di Chimica Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, Roma, I-00185, Italy
| | - Andreas Walther
- Life-Like Materials and Systems, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
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5
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Sharma C, Maity I, Walther A. pH-feedback systems to program autonomous self-assembly and material lifecycles. Chem Commun (Camb) 2023; 59:1125-1144. [PMID: 36629372 DOI: 10.1039/d2cc06402b] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
pH-responsive systems have gained importance for the development of smart materials and for biomedical applications because they can switch between different states by simple acid/base triggers. However, such equilibrium systems lack the autonomous behaviour that is so ubiquitous in living systems that self-regulate out of equilibrium. As a contribution to the emerging field of autonomous chemical systems, we have developed pH-feedback systems (pH-FS) based on the coupling of acid- and base-producing steps in chemical reaction networks. The resulting autonomous nonlinear pH curves can be coupled with a variety of pH-sensitive building blocks to program the lifecycles of the associated transient state at the level of self-assemblies and material systems. In this article, we discuss the different generations of such pH-feedback systems, the principles of their coupling to self-assemblies with lifecycles and highlight emerging concepts for the design of autonomous functional materials. The specificity, robustness, and flexible operation of such pH-FS can also be used to realize chemo-structural and chemo-mechanical feedbacks that extend the behaviour of such materials systems toward complex and functional life-like systems.
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Affiliation(s)
- Charu Sharma
- Life-Like Materials and Systems, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
| | - Indrajit Maity
- Life-Like Materials and Systems, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
| | - Andreas Walther
- Life-Like Materials and Systems, Department of Chemistry, University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany.
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6
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Wootten MM, Tshepelevitsh S, Leito I, Clayden J. A Chemically Fuelled Molecular Automaton Displaying Programmed Migration of Zn 2+ Between Alternative Binding Sites. Chemistry 2022; 28:e202202247. [PMID: 35880579 PMCID: PMC9804598 DOI: 10.1002/chem.202202247] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Indexed: 01/05/2023]
Abstract
A molecular system comprising a cationic zinc complex and an amino acid-derived ambident ligand having phosphate and carboxylate binding sites undergoes a series of rearrangements in which the metal cation migrates autonomously from one site to another. The location of the metal is identified by the circular dichroism spectrum of a ligated bis(2-quinolylmethyl)-(2-pyridylmethyl)amine (BQPA) chromophore, which takes a characteristic shape at each binding site. Migration is fuelled by the decomposition of trichloroacetic acid to CO2 and CHCl3 , which progressively neutralises the acidity of the system as a function of time, revealing in sequence binding sites of increasing basicity. The migration rate responds to control by variation of the temperature, water content and triethylamine concentration, while an excess of fuel controls the duration of an induction period before the migration event.
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Affiliation(s)
| | | | - Ivo Leito
- Institute of ChemistryUniversity of TartuRavila 14aTartu50411Estonia
| | - Jonathan Clayden
- School of ChemistryUniversity of BristolCantock's CloseBristolBS8 1TSUK
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7
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Frateloreto F, Tavani F, Di Berto Mancini M, Del Giudice D, Capocasa G, Kieffer I, Lanzalunga O, Di Stefano S, D’Angelo P. Following a Silent Metal Ion: A Combined X-ray Absorption and Nuclear Magnetic Resonance Spectroscopic Study of the Zn 2+ Cation Dissipative Translocation between Two Different Ligands. J Phys Chem Lett 2022; 13:5522-5529. [PMID: 35695810 PMCID: PMC9234980 DOI: 10.1021/acs.jpclett.2c01468] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
The dissipative translocation of the Zn2+ ion between two prototypical coordination complexes has been investigated by combining X-ray absorption and 1H NMR spectroscopy. An integrated experimental and theoretical approach, based on state-of-the-art Multivariate Curve Resolution and DFT based theoretical analyses, is presented as a means to understand the concentration time evolution of all relevant Zn and organic species in the investigated processes, and accurately characterize the solution structures of the key metal coordination complexes. Specifically, we investigate the dissipative translocation of the Zn2+ cation from hexaaza-18-crown-6 to two terpyridine moieties and back again to hexaaza-18-crown-6 using 2-cyano-2-phenylpropanoic acid and its para-chloro derivative as fuels. Our interdisciplinary approach has been proven to be a valuable tool to shed light on reactive systems containing metal ions that are silent to other spectroscopic methods. These combined experimental approaches will enable future applications to chemical and biological systems in a predictive manner.
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Affiliation(s)
- Federico Frateloreto
- Dipartimento
di Chimica, Università degli Studi
di Roma “La Sapienza”, P.le A. Moro 5, I-00185 Rome, Italy
| | - Francesco Tavani
- Dipartimento
di Chimica, Università degli Studi
di Roma “La Sapienza”, P.le A. Moro 5, I-00185 Rome, Italy
| | - Marika Di Berto Mancini
- Dipartimento
di Chimica, Università degli Studi
di Roma “La Sapienza”, P.le A. Moro 5, I-00185 Rome, Italy
| | - Daniele Del Giudice
- Dipartimento
di Chimica, Università degli Studi
di Roma “La Sapienza”, P.le A. Moro 5, I-00185 Rome, Italy
| | - Giorgio Capocasa
- Dipartimento
di Chimica, Università degli Studi
di Roma “La Sapienza”, P.le A. Moro 5, I-00185 Rome, Italy
| | - Isabelle Kieffer
- Observatoire
des Sciences de l’Univers de Grenoble (OSUG), Université Grenoble-Alpes, UMR
832 CNRS, Grenoble, Cedex 9 F-38041, France
- BM30/CRG-FAME, ESRF, Polygone scientifique, Grenoble, 38000, France
| | - Osvaldo Lanzalunga
- Dipartimento
di Chimica, Università degli Studi
di Roma “La Sapienza”, P.le A. Moro 5, I-00185 Rome, Italy
| | - Stefano Di Stefano
- Dipartimento
di Chimica, Università degli Studi
di Roma “La Sapienza”, P.le A. Moro 5, I-00185 Rome, Italy
| | - Paola D’Angelo
- Dipartimento
di Chimica, Università degli Studi
di Roma “La Sapienza”, P.le A. Moro 5, I-00185 Rome, Italy
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8
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Del Giudice D, Frateloreto F, Sappino C, Di Stefano S. Chemical Tools for the Temporal Control of Water Solution pH and Applications in Dissipative Systems. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Daniele Del Giudice
- University of Rome La Sapienza: Universita degli Studi di Roma La Sapienza Chemistry ITALY
| | - Federico Frateloreto
- University of Rome La Sapienza: Universita degli Studi di Roma La Sapienza Chemistry ITALY
| | - Carla Sappino
- University of Rome La Sapienza: Universita degli Studi di Roma La Sapienza Chemistry ITALY
| | - Stefano Di Stefano
- University of Rome La Sapienza: Universita degli Studi di Roma La Sapienza Chemistry Department Piazzale Aldo Moro 5 00185 Rome ITALY
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9
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Del Giudice D, Valentini M, Melchiorre G, Spatola E, Di Stefano S. Dissipative Dynamic Covalent Chemistry (DDCvC) Based on the Transimination Reaction. Chemistry 2022; 28:e202200685. [DOI: 10.1002/chem.202200685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Daniele Del Giudice
- Dipartimento di Chimica Università degli Studi di Roma “La Sapienza” P.le A. Moro 5 00185 Rome Italy
| | - Matteo Valentini
- Dipartimento di Chimica Università degli Studi di Roma “La Sapienza” P.le A. Moro 5 00185 Rome Italy
| | - Gabriele Melchiorre
- Dipartimento di Chimica Università degli Studi di Roma “La Sapienza” P.le A. Moro 5 00185 Rome Italy
| | - Emanuele Spatola
- Dipartimento di Chimica Università degli Studi di Roma “La Sapienza” P.le A. Moro 5 00185 Rome Italy
| | - Stefano Di Stefano
- Dipartimento di Chimica Università degli Studi di Roma “La Sapienza” P.le A. Moro 5 00185 Rome Italy
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10
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Thomas A, Gasch B, Olivieri E, Quintard A. Trichloroacetic acid fueled practical amine purifications. Beilstein J Org Chem 2022; 18:225-231. [PMID: 35280955 PMCID: PMC8895030 DOI: 10.3762/bjoc.18.26] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/17/2022] [Indexed: 12/21/2022] Open
Abstract
Amine purification have for long been dominated by tedious stepwise processes involving the generation of large amounts of undesired waste. Inspired by recent work on out of equilibrium molecular machinery, using trichloroacetic acid (TCA), we disclose a purification technique considerably decreasing the number of operations and the waste generation required for such purifications. At first, TCA triggers the precipitation of the amines through their protonated salt formation, enabling the separation with the impurities. From these amine salts, simple decarboxylation of TCA liberates volatile CO2 and chloroform affording directly the pure amines. Through this approach, a broad range of diversely substituted amines could be isolated with success.
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Affiliation(s)
- Aleena Thomas
- Aix-Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Baptiste Gasch
- Aix-Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Enzo Olivieri
- Aix-Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
| | - Adrien Quintard
- Aix-Marseille Univ, CNRS, Centrale Marseille, iSm2, Marseille, France
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11
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Rispoli F, Spatola E, Del Giudice D, Cacciapaglia R, Casnati A, Baldini L, Di Stefano S. Temporal Control of the Host-Guest Properties of a Calix[6]arene Receptor by the Use of a Chemical Fuel. J Org Chem 2022; 87:3623-3629. [PMID: 35196018 PMCID: PMC8902750 DOI: 10.1021/acs.joc.2c00050] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
![]()
The host–guest
interaction of a 1,3,5-trisaminocalix[6]arene
receptor with N-methylisoquinolinium trifluoromethanesulfonate
(Kass of 500 ± 30 M–1 in CD2Cl2) can be dissipatively driven by
means of 2-cyano-2-(4′-chloro)phenylpropanoic acid used as
a convenient chemical fuel. When the fuel is added to a dichloromethane
solution containing the above complex, the host is induced to immediately
release the guest in the bulk solution. Consumption of the fuel allows
the guest to be re-uptaken by the host. The operation can be satisfactorily
reiterated with four subsequent additions of fuel, producing four
successive release–reuptake cycles. The percentage of the guest
temporarily released in the bulk solution by the host and the time
required for the reuptake process can be finely regulated by varying
the quantities of added fuel.
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Affiliation(s)
- Francesco Rispoli
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze 17/A, Parma 43124, Italy
| | - Emanuele Spatola
- Dipartimento di Chimica, Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, Roma I-00185, Italy
| | - Daniele Del Giudice
- Dipartimento di Chimica, Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, Roma I-00185, Italy
| | - Roberta Cacciapaglia
- Dipartimento di Chimica, Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, Roma I-00185, Italy
| | - Alessandro Casnati
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze 17/A, Parma 43124, Italy
| | - Laura Baldini
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze 17/A, Parma 43124, Italy
| | - Stefano Di Stefano
- Dipartimento di Chimica, Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, Roma I-00185, Italy
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12
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Spatola E, Rispoli F, Del Giudice D, Cacciapaglia R, Casnati A, Marchiò L, Baldini L, Di Stefano S. Dissipative control of the fluorescence of a 1,3-dipyrenyl calix[4]arene in the cone conformation. Org Biomol Chem 2021; 20:132-138. [PMID: 34816861 DOI: 10.1039/d1ob02096j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The temporal control (ON/OFF/ON) of the fluorescence of a dichloromethane/acetonitrile 1 : 1 solution of calixarene 3 decorated with two pyrenyl moieties at the upper rim is attained by the addition of CCl3CO2H used as a convenient chemical fuel.
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Affiliation(s)
- Emanuele Spatola
- Dipartimento di Chimica Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, I-00185 Roma, Italy.
| | - Francesco Rispoli
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Daniele Del Giudice
- Dipartimento di Chimica Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, I-00185 Roma, Italy.
| | - Roberta Cacciapaglia
- Dipartimento di Chimica Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, I-00185 Roma, Italy.
| | - Alessandro Casnati
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Luciano Marchiò
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Laura Baldini
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università degli Studi di Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy.
| | - Stefano Di Stefano
- Dipartimento di Chimica Università di Roma La Sapienza and ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione, P.le A. Moro 5, I-00185 Roma, Italy.
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13
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Del Giudice D, Tavani F, Di Berto Mancini M, Frateloreto F, Busato M, Oliveira De Souza D, Cenesi F, Lanzalunga O, Di Stefano S, D'Angelo P. Two Faces of the Same Coin: Coupling X-Ray Absorption and NMR Spectroscopies to Investigate the Exchange Reaction Between Prototypical Cu Coordination Complexes. Chemistry 2021; 28:e202103825. [PMID: 34850474 DOI: 10.1002/chem.202103825] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Indexed: 12/21/2022]
Abstract
The satisfactory rationalization of complex reactive pathways in solution chemistry may greatly benefit from the combined use of advanced experimental and theoretical complementary methods of analysis. In this work, we combine X-Ray Absorption and 1 H NMR spectroscopies with state-of-the-art Multivariate Curve Resolution and theoretical analyses to gain a comprehensive view on a prototypical reaction involving the variation of the oxidation state and local structure environment of a selected metal ion coordinated by organic ligands. Specifically, we investigate the 2-cyano-2-phenylpropanoic acid reduction of the octahedral complex established by the Cu2+ ion with terpyridine to the tetrahedral complex formed by Cu+ and neocuproine. Through our interdisciplinary approach we gain insights into the nature, concentration time evolution and structures of the key metal (XAS measurements) and organic (1 H NMR measurements) species under reaction. We believe our method may prove to be useful in the toolbox necessary to understand the mechanisms of reactive processes of interest in solution.
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Affiliation(s)
- Daniele Del Giudice
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P.le A. Moro 5, I-00185, Rome, Italy
| | - Francesco Tavani
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P.le A. Moro 5, I-00185, Rome, Italy
| | - Marika Di Berto Mancini
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P.le A. Moro 5, I-00185, Rome, Italy
| | - Federico Frateloreto
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P.le A. Moro 5, I-00185, Rome, Italy
| | - Matteo Busato
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P.le A. Moro 5, I-00185, Rome, Italy
| | - Danilo Oliveira De Souza
- Elettra-Sincrotrone Trieste, Strada Statale 14, km 163.5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
| | - Flavia Cenesi
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P.le A. Moro 5, I-00185, Rome, Italy
| | - Osvaldo Lanzalunga
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P.le A. Moro 5, I-00185, Rome, Italy
| | - Stefano Di Stefano
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P.le A. Moro 5, I-00185, Rome, Italy
| | - Paola D'Angelo
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza", P.le A. Moro 5, I-00185, Rome, Italy
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14
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Morie M, Sekiya R, Haino T. Synthesis and Conformational Characteristics of Calix[4]arene Oligomers. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Masayuki Morie
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Ryo Sekiya
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Takeharu Haino
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
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15
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Mariottini D, Del Giudice D, Ercolani G, Di Stefano S, Ricci F. Dissipative operation of pH-responsive DNA-based nanodevices. Chem Sci 2021; 12:11735-11739. [PMID: 34659709 PMCID: PMC8442697 DOI: 10.1039/d1sc03435a] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 07/16/2021] [Indexed: 12/18/2022] Open
Abstract
We demonstrate here the use of 2-(4-chlorophenyl)-2-cyanopropanoic acid (CPA) and nitroacetic acid (NAA) as convenient chemical fuels to drive the dissipative operation of DNA-based nanodevices. Addition of either of the fuel acids to a water solution initially causes a rapid transient pH decrease, which is then followed by a slower pH increase. We have employed such low-to-high pH cycles to control in a dissipative way the operation of two model DNA-based nanodevices: a DNA nanoswitch undergoing time-programmable open–close–open cycles of motion, and a DNA-based receptor able to release-uptake a DNA cargo strand. The kinetics of the transient operation of both systems can be easily modulated by varying the concentration of the acid fuel added to the solution and both acid fuels show an efficient reversibility which further supports their versatility. We demonstrate here the use of 2-(4-chlorophenyl)-2-cyanopropanoic acid (CPA) and nitroacetic acid (NAA) as convenient chemical fuels to drive the dissipative operation of DNA-based nanodevices.![]()
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Affiliation(s)
- Davide Mariottini
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata Via della Ricerca Scientifica 00133 Roma Italy
| | - Daniele Del Giudice
- Dipartimento di Chimica, Università di Roma La Sapienza, ISB-CNR Sede Secondaria di Roma-Meccanismi di Reazione P.le A. Moro 5 00185 Roma Italy
| | - Gianfranco Ercolani
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata Via della Ricerca Scientifica 00133 Roma Italy
| | - Stefano Di Stefano
- Dipartimento di Chimica, Università di Roma La Sapienza, ISB-CNR Sede Secondaria di Roma-Meccanismi di Reazione P.le A. Moro 5 00185 Roma Italy
| | - Francesco Ricci
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata Via della Ricerca Scientifica 00133 Roma Italy
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16
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Del Giudice D, Spatola E, Valentini M, Bombelli C, Ercolani G, Di Stefano S. Time-programmable pH: decarboxylation of nitroacetic acid allows the time-controlled rising of pH to a definite value. Chem Sci 2021; 12:7460-7466. [PMID: 34163836 PMCID: PMC8171335 DOI: 10.1039/d1sc01196k] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 04/21/2021] [Indexed: 12/24/2022] Open
Abstract
In this report it is shown that nitroacetic acid 1 (O2NCH2CO2H) can be conveniently used to control the pH of a water solution over time. Time-programmable sequences of the kind pH1(high)-pH2(low)-pH3(high) can be achieved, where both the extent of the initial pH jump (pH1(high)-pH2(low)) and the time required for the subsequent pH rising (pH2(low)-pH3(high)) can be predictably controlled by a judicious choice of the absolute and relative concentrations of the reagents (acid 1 and NaOH). Successive pH1(high)-pH2(low)-pH3(high) sequences can be obtained by subsequent additions of acid 1. As a proof of concept, the method is applied to control over time the pH-dependent host-guest interaction between alpha-cyclodextrin and p-aminobenzoic acid.
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Affiliation(s)
- Daniele Del Giudice
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" P.le A. Moro 5 I-00185 Rome Italy
- ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione c/o Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" P.le A. Moro 5 I-00185 Rome Italy
| | - Emanuele Spatola
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" P.le A. Moro 5 I-00185 Rome Italy
- ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione c/o Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" P.le A. Moro 5 I-00185 Rome Italy
| | - Matteo Valentini
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" P.le A. Moro 5 I-00185 Rome Italy
| | - Cecilia Bombelli
- ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione c/o Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" P.le A. Moro 5 I-00185 Rome Italy
| | - Gianfranco Ercolani
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata Via della Ricerca Scientifica 00133 Rome Italy
| | - Stefano Di Stefano
- Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" P.le A. Moro 5 I-00185 Rome Italy
- ISB-CNR Sede Secondaria di Roma - Meccanismi di Reazione c/o Dipartimento di Chimica, Università degli Studi di Roma "La Sapienza" P.le A. Moro 5 I-00185 Rome Italy
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