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Mobili R, Preda G, Dondi D, Monzani E, Vadivel D, Massera C, Pasini D, Amendola V. Triptycene-based diiron(II) mesocates: spin-crossover in solution. Chem Commun (Camb) 2024; 60:5522-5525. [PMID: 38695185 DOI: 10.1039/d4cc00812j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
Triptycene-based diiron(II) and dizinc(II) mesocates were obtained using a novel rigid ligand with two pyridylbenzimidazole chelating units fused into the triptycene scaffold. Studies on the diiron(II) assembly in solution showed that the complex undergoes thermal-induced one-step spin-crossover with T1/2 at 243 K (Evans method).
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Affiliation(s)
- Riccardo Mobili
- Department of Chemistry, University of Pavia, viale Torquato Taramelli 12, 27100 Pavia, Italy. valeria.amendola@unipv
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, 4 Place Jussieu, Paris, France.
| | - Giovanni Preda
- Department of Chemistry, University of Pavia, viale Torquato Taramelli 12, 27100 Pavia, Italy. valeria.amendola@unipv
| | - Daniele Dondi
- Department of Chemistry, University of Pavia, viale Torquato Taramelli 12, 27100 Pavia, Italy. valeria.amendola@unipv
| | - Enrico Monzani
- Department of Chemistry, University of Pavia, viale Torquato Taramelli 12, 27100 Pavia, Italy. valeria.amendola@unipv
| | - Dhanalakshmi Vadivel
- Department of Chemistry, University of Pavia, viale Torquato Taramelli 12, 27100 Pavia, Italy. valeria.amendola@unipv
| | - Chiara Massera
- Department of Chemistry, Life Science and Environmental Sustainability University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
| | - Dario Pasini
- Department of Chemistry, University of Pavia, viale Torquato Taramelli 12, 27100 Pavia, Italy. valeria.amendola@unipv
| | - Valeria Amendola
- Department of Chemistry, University of Pavia, viale Torquato Taramelli 12, 27100 Pavia, Italy. valeria.amendola@unipv
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2
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Preda G, Aricò A, Botta C, Ravelli D, Merli D, Mattiello S, Beverina L, Pasini D. Activation of Solid-State Emission and Photostability through Molecular Confinement: The Case of Triptycene-Fused Quinacridone Dyes. Org Lett 2023; 25:6490-6494. [PMID: 37638412 PMCID: PMC10496147 DOI: 10.1021/acs.orglett.3c02093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Indexed: 08/29/2023]
Abstract
We report the facile, metal-free convergent synthesis and the characterization of novel quinacridone dyes in which two triptycene units end-cap and sterically confine the quinacridone chromophore. A precise comparison of the confined dyes with their known homologues reveals that the reduction of π-π interactions in triptycene-fused quinacridone dyes compared to classical quinacridone results not only in an increase of solubility and processability but also in an enhancement of fluorescence quantum yield and photostability in the solid state.
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Affiliation(s)
- Giovanni Preda
- Department
of Chemistry and INSTM, University of Pavia
Via Taramelli 12, 27100 Pavia PV, Italy
| | - Andrea Aricò
- Department
of Chemistry and INSTM, University of Pavia
Via Taramelli 12, 27100 Pavia PV, Italy
| | - Chiara Botta
- SCITEC−CNR,
Consiglio Nazionale delle Ricerche, Istituto
di Scienze e Tecnologie Chimiche ‘G. Natta’, Via A. Corti 12, 20133 Milano, Italy
| | - Davide Ravelli
- Department
of Chemistry and INSTM, University of Pavia
Via Taramelli 12, 27100 Pavia PV, Italy
| | - Daniele Merli
- Department
of Chemistry and INSTM, University of Pavia
Via Taramelli 12, 27100 Pavia PV, Italy
| | - Sara Mattiello
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano-Bicocca and INSTM, Via R. Cozzi 55, 20125, Milano, Italy
| | - Luca Beverina
- Dipartimento
di Scienza dei Materiali, Università
degli Studi Milano-Bicocca and INSTM, Via R. Cozzi 55, 20125, Milano, Italy
| | - Dario Pasini
- Department
of Chemistry and INSTM, University of Pavia
Via Taramelli 12, 27100 Pavia PV, Italy
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Ma H, Yang BB, Wang Z, Wu K, Zhang C. A three dimensional graphdiyne-like porous triptycene network for gas adsorption and separation. RSC Adv 2022; 12:28299-28305. [PMID: 36320518 PMCID: PMC9531253 DOI: 10.1039/d2ra04031j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 09/27/2022] [Indexed: 11/05/2022] Open
Abstract
Graphdiyne, an emerging carbon allotrope, has attracted many researchers devoted to the study of its synthesis and application. The utilization of graphdiyne in gas adsorption and separation has been predicted by computer simulation with many examples. In this work, the triangular basic unit of graphdiyne was introduced into a triptycene-based porous organic polymer to obtain a three dimensional graphdiyne-like porous triptycene network named G-PTN. With high surface area and a microporous structure, G-PTN exhibited convincing application potential for the storage of gas molecules, especially for the selective adsorption of acetylene over ethylene. Computational simulation proved the importance of the triptycene units and three dimensional structure to the selectivity, as well as the potential of graphdiyne units as selective binding sites, suggesting that through judicious design, new three-dimensional porous graphdiyne could be acquired with better gas adsorption and separation performance.
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Affiliation(s)
- Hui Ma
- College of Life Science and Technology, National Engineering Research Center for Nanomedicine, Huazhong University of Science and TechnologyWuhan430074China
| | - Bin-Bin Yang
- College of Life Science and Technology, National Engineering Research Center for Nanomedicine, Huazhong University of Science and TechnologyWuhan430074China
| | - Zhen Wang
- College of Life Science and Technology, National Engineering Research Center for Nanomedicine, Huazhong University of Science and TechnologyWuhan430074China
| | - Kai Wu
- Technology R&D Center, Hubei Tobacco (Group) Co., LtdWuhan430070China
| | - Chun Zhang
- College of Life Science and Technology, National Engineering Research Center for Nanomedicine, Huazhong University of Science and TechnologyWuhan430074China
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Yang X, Elbert SM, Rominger F, Mastalerz M. A Series of Soluble Thieno-Fused Coronene Nanoribbons of Precise Lengths. J Am Chem Soc 2022; 144:9883-9892. [DOI: 10.1021/jacs.2c02645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Xuan Yang
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Sven M. Elbert
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Michael Mastalerz
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
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6
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Ding W, Zhang G. Access to fused π-extended acridone derivatives through a regioselective oxidative demethylation. Org Biomol Chem 2021; 19:6985-6989. [PMID: 34346476 DOI: 10.1039/d1ob01249e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The oxidative demethylation of ortho-dimethoxyacridone with ceric ammonium nitrate (CAN) regioselectively furnished an ortho-quinone leaving a methoxyl group unreacted, which further condensed with aromatic ortho-diamines to afford angularly fused π-extended acridone derivatives. Crystallographic analysis reveals the distinct manner of molecular packing in the crystals according to the dimension of π-extension. The benzene at the turning point possesses a shorter outer bond and a longer inner bond, which affects molecular conjugation and results in weakened aromaticity.
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Affiliation(s)
- Weiwei Ding
- Jiangsu Co-Innovation Center for Efficient Processing and Utilization of Forest Products, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, P. R. China.
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Kang T, Kim H, Jeoung S, Moon D, Moon HR, Lee D. Non-stackable molecules assemble into porous crystals displaying concerted cavity-changing motions. Chem Sci 2021; 12:6378-6384. [PMID: 34084437 PMCID: PMC8115244 DOI: 10.1039/d1sc01163d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
With small molecules, it is not easy to create large void spaces. Flat aromatics stack tightly, while flexible chains fold to fill the cavities. As an intuitive design to make open channels inside molecularly constructed solids, we employed propeller-shaped bicyclic triazoles to prepare a series of aromatic-rich three-dimensional (3D) building blocks. This modular approach has no previous example, but is readily applicable to build linear, bent, and branched arrays of non-stackable architectural motifs from existing flat aromatics by single-pot reactions. A letter H-shaped molecule thus prepared self-assembles into porous crystals, the highly unusual stepwise gas sorption behaviour of which prompted in-depth studies. A combination of single-crystal and powder X-ray diffraction analysis revealed multiple polymorphs, and sterically allowed pathways for their reversible interconversions that open and close the pores in response to external stimuli. Like non-collapsible open voids within stacks of steel H-beams, a non-covalent assembly of three-dimensional aromatics produces porous crystals. Concerted motions of the molecular H-beams open and close the cavities in response to external stimuli.![]()
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Affiliation(s)
- Taewon Kang
- Department of Chemistry, Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Korea
| | - Hongsik Kim
- Department of Chemistry, Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Korea
| | - Sungeun Jeoung
- Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil, Eonyang-eup, Ulji-gun Ulsan 44919 Korea
| | - Dohyun Moon
- Pohang Accelerator Laboratory 80 Jigokro-127-beongil, Nam-gu Pohang 37673 Korea
| | - Hoi Ri Moon
- Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil, Eonyang-eup, Ulji-gun Ulsan 44919 Korea
| | - Dongwhan Lee
- Department of Chemistry, Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 Korea
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