1
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Zhao C, Wang Y, Jiang Y, Wu N, Wang H, Li T, Ouyang G, Liu M. Handedness-Inverted and Stimuli-Responsive Circularly Polarized Luminescent Nano/Micromaterials Through Pathway-Dependent Chiral Supramolecular Polymorphism. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2403329. [PMID: 38625749 DOI: 10.1002/adma.202403329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Indexed: 04/18/2024]
Abstract
The precise manipulation of supramolecular polymorphs has been widely applied to control the morphologies and functions of self-assemblies, but is rarely utilized for the fabrication of circularly polarized luminescence (CPL) materials with tailored properties. Here, this work reports that an amphiphilic naphthalene-histidine compound (NIHis) readily self-assembled into distinct chiral nanostructures through pathway-dependent supramolecular polymorphism, which shows opposite and multistimuli responsive CPL signals. Specifically, NIHis display assembly-induced CPL from the polymorphic keto tautomer, which become predominant during enol-keto tautomerization shifting controlled by a bulk solvent effect. Interestingly, chiral polymorphs of nanofiber and microbelt with inverted CPL signals can be prepared from the same NIHis monomer in exactly the same solvent compositions and concentrations by only changing the temperature. The tunable CPL performance of the solid microbelts is realized under multi external physical or chemical stimuli including grinding, acid fuming, and heating. In particular, an emission color and CPL on-off switch based on the microbelt polymorph by reversible heating-cooling protocol is developed. This work brings a new approach for developing smart CPL materials via supramolecular polymorphism engineering.
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Affiliation(s)
- Chenyang Zhao
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
- Beijing National Laboratory of Molecular Sciences and CAS Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, No. 2 North First Street, Zhongguancun, Beijing, 100190, China
| | - Yuan Wang
- Beijing National Laboratory of Molecular Sciences and CAS Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, No. 2 North First Street, Zhongguancun, Beijing, 100190, China
| | - Yuqian Jiang
- Key Laboratory of Nanosystem and Hierarchical Fabrication, Chinese Academy of Sciences, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Ningning Wu
- Beijing National Laboratory of Molecular Sciences and CAS Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, No. 2 North First Street, Zhongguancun, Beijing, 100190, China
| | - Hanxiao Wang
- Beijing National Laboratory of Molecular Sciences and CAS Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, No. 2 North First Street, Zhongguancun, Beijing, 100190, China
| | - Tiejun Li
- Beijing National Laboratory of Molecular Sciences and CAS Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, No. 2 North First Street, Zhongguancun, Beijing, 100190, China
- University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Beijing, 100049, China
| | - Guanghui Ouyang
- Beijing National Laboratory of Molecular Sciences and CAS Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, No. 2 North First Street, Zhongguancun, Beijing, 100190, China
| | - Minghua Liu
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
- Beijing National Laboratory of Molecular Sciences and CAS Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, No. 2 North First Street, Zhongguancun, Beijing, 100190, China
- University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Beijing, 100049, China
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2
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Hartstein M, Ohad G, Kronik L. Predicting the Color Polymorphism of ROY from a Time-Dependent Optimally Tuned Screened Range-Separated Hybrid Functional. J Chem Theory Comput 2024; 20:5510-5516. [PMID: 38842436 PMCID: PMC11238539 DOI: 10.1021/acs.jctc.4c00433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
Polymorphism is a well-known property of molecular crystals, which allows the same molecule to form solids with several crystalline structures that can differ significantly in physical properties. Polymorphs that possess different optical absorption properties in the visible range may exhibit different perceived colors, a phenomenon known as color polymorphism. One striking example of color polymorphism is given by 5-methyl-2-[(2-nitrophenyl)amino]-3-thiophenecarbonitrile, known as ROY for its red-orange-yellow colors. First-principles prediction of color polymorphism may help in polymorph assignment and design but has proven to be challenging. Here, we predict the absorption spectra and simulate the colors of 12 ROY polymorphs using the general, nonempirical method of time-dependent (TD) optimally tuned screened range-separated hybrid (OT-SRSH) functional. For 5 ROY polymorphs with known experimental absorption spectra, we show that the TD-OT-SRSH approach predicts absorption spectra in quantitative agreement with experiment. For all polymorphs, we show that an accurate simulation of the colors is obtained, paving the way to a fully predictive, low-cost calculation of color polymorphism.
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Affiliation(s)
- Michal Hartstein
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovoth 7610001, Israel
| | - Guy Ohad
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovoth 7610001, Israel
| | - Leeor Kronik
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovoth 7610001, Israel
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3
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Ye X, Gutenthaler‐Tietze J, Wu R, Xia G, Xu S, Liu B, Chen Y, Karaghiosoff K. In Situ X-Ray Techniques Unraveling Charge Distribution Induced by Halogen Bonds in Solvates of an Iodo-Substituted Squaraine Dye. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2400661. [PMID: 38659278 PMCID: PMC11220701 DOI: 10.1002/advs.202400661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/22/2024] [Indexed: 04/26/2024]
Abstract
The importance of halogen bonds (XBs) in the regulation of material properties through a variation in the electrostatic potential of the halogen atom is not attracted much attention. Herein, this study utilizes in situ single crystal X-ray diffraction and synchrotron-based X-ray techniques to investigate the cooling-triggered irreversible single-crystal-to-single-crystal transformation of the DMF solvated iodo-substituted squaraine dye (SQD-I). Transformation is observed to be mediated by solvent-involved XB formation and strengthening of electrostatic interaction between adjacent SQD-I molecules. By immersing a DMF solvate in acetonitrile a solvent exchange without loss of long-range ordering is observed. This is attributed to conservation of the molecular charge distribution of SQD-I molecules during the process. The different solvates can be used in combination for temperature-dependent image encryption. This work emphasizes the changes caused by XB formation to the electrostatic potentials of halogen containing molecules and their influence on material properties and presents the potential utility of XBs in the design of soft-porous crystals and luminescent materials.
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Affiliation(s)
- Xiaoyu Ye
- The Institute for Advanced Studies (IAS)Wuhan UniversityWuhan430072China
| | | | - Ruoxuan Wu
- School of Biomedical Sciences and EngineeringSouth China University of TechnologyGuangzhou511442China
| | - Guomin Xia
- The Institute for Advanced Studies (IAS)Nanchang UniversityNanchang330031China
| | - Shidang Xu
- School of Biomedical Sciences and EngineeringSouth China University of TechnologyGuangzhou511442China
| | - Bin Liu
- Department of Chemical and Biomolecular EngineeringNational University of SingaporeSingapore117585Singapore
| | - Yi‐Hung Chen
- The Institute for Advanced Studies (IAS)Wuhan UniversityWuhan430072China
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4
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Morawski OW, Karpiuk J, Grzybowski M. Color Polymorphism and Room Temperature Phosphorescence of 4-Bromo-2,7-Di-Tert-Butyl- 9-Methoxypyrene. Chemphyschem 2024:e202400457. [PMID: 38828488 DOI: 10.1002/cphc.202400457] [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: 04/22/2024] [Revised: 05/24/2024] [Accepted: 05/31/2024] [Indexed: 06/05/2024]
Abstract
Color polymorphism combined with crystal packing-dependent luminescence properties of polymorphs reflects differences in intermolecular interactions in different molecular arrangements. The title compound has two polymorphic crystal structures having strikingly different absorption and luminescence spectra that result from different packing motifs in the crystal lattice. The polymorph with brick wall-like packing of molecules is white and shows very weak violet fluorescence whereas the second polymorph, where molecules are arranged in columnar stacks, is bright yellow and displays intense green fluorescence with maximum at 487 nm (20530 cm-1). In the white polymorph, where the distance between neighboring chromophores is increased, absorption and fluorescence spectra are similar to those of monomer in solution, and intersystem crossing to triplet manifold is the dominant pathway of relaxation. In the yellow polymorph, molecules within the columnar stacks are rotated which mitigates the steric hindrance and leads to closer π-stacking of the pyrene cores. That increases the ππ overlap and strengthens intermolecular interactions decreasing energy of the excited states. This affects emission spectra and photophysical processes-fluorescence yield grows whereas triplet formation yield decreases when S1 is lowered below higher triplet states and conditions for effective vibronic spin-orbit coupling are not favorable. The effect is not observed for other similar pyrene derivatives, testifying the uniqueness of the phenomenon.
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Affiliation(s)
- Olaf W Morawski
- Division of Radiation Physics and Spectroscopy, Group of molecular photophysics, Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668, Warsaw, Poland
| | - Jerzy Karpiuk
- Division of Radiation Physics and Spectroscopy, Group of molecular photophysics, Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668, Warsaw, Poland
| | - Marek Grzybowski
- Institute of Organic Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224, Warsaw, Poland
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5
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Roth AD, Thamattoor DM. Formation and Rearrangement of a Congested Spiropentane from the Trapping of Dibenzonorcarynyliden(e/oid) by Phencyclone. Org Lett 2024; 26:3840-3843. [PMID: 38669627 DOI: 10.1021/acs.orglett.4c01001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
The low-temperature treatment of 1,1-dibromo-1a,9b-cyclopropa[l]phenanthrene with butyllithium appeared to produce dibenzonorcarynyliden(e/oid) which could be intercepted with phencyclone to produce a hindered spiropentane. The spiropentane readily rearranges, thermally and photochemically, into a triphenylene phenol derivative. The spiropentane and its rearrangement product were characterized by X-ray crystallography.
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Affiliation(s)
- Alexander D Roth
- Department of Chemistry, Colby College, Waterville, Maine 04901, United States
| | - Dasan M Thamattoor
- Department of Chemistry, Colby College, Waterville, Maine 04901, United States
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6
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Pandey V, Pandey T. Understanding the bio-crystallization: An insight to therapeutic relevance. Biophys Chem 2024; 308:107216. [PMID: 38479205 DOI: 10.1016/j.bpc.2024.107216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/29/2024] [Accepted: 03/02/2024] [Indexed: 03/25/2024]
Abstract
In the realm of biomedical engineering and materials science, the synthesis of biomaterials plays a pivotal role in advancing therapeutic strategies for regeneration of tissues. The deliberate control of crystallization processes in biomaterial synthesis has emerged as a key avenue for tailoring the properties of these materials, enabling the design of innovative solutions for a wide array of medical applications. This review delves into the interplay between controlled crystallization and biomaterial synthesis, exploring its multifaceted applications in the therapeutic domains. The investigation encompasses a wide spectrum of matrices, ranging from small molecules to large biomolecules, highlighting their unique contributions in modulating crystallization processes. Furthermore, the review critically assesses the analytical techniques and methodologies employed to probe and characterize the depths of crystallization dynamics. Advanced imaging, spectroscopic, and computational tools are discussed in the context of unraveling the intricate mechanisms governing nucleation and crystallization processes within the organic matrix. Finally we delve in the applications of such advance material in therapeutics of hard and soft tissues.
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Affiliation(s)
- Vivek Pandey
- Department of Chemistry, School for Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara, Punjab, India.
| | - Tejasvi Pandey
- Department of Forensic Sciences, School for Bioengineering and Biosciences Sciences, Lovely Professional University, Phagwara, Punjab, India
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7
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Krysiak Y, Plana-Ruiz S, Fink L, Alig E, Bahnmüller U, Kolb U, Schmidt MU. High Temperature Electron Diffraction on Organic Crystals: In Situ Crystal Structure Determination of Pigment Orange 34. J Am Chem Soc 2024; 146:9880-9887. [PMID: 38536667 PMCID: PMC11009952 DOI: 10.1021/jacs.3c14800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/23/2024] [Accepted: 03/14/2024] [Indexed: 04/11/2024]
Abstract
Small molecule structures and their applications rely on good knowledge of their atomic arrangements. However, the crystal structures of these compounds and materials, which are often composed of fine crystalline domains, cannot be determined with single-crystal X-ray diffraction. Three-dimensional electron diffraction (3D ED) is already becoming a reliable method for the structure analysis of submicrometer-sized organic materials. The reduction of electron beam damage is essential for successful structure determination and often prevents the analysis of organic materials at room temperature, not to mention high temperature studies. In this work, we apply advanced 3D ED methods at different temperatures enabling the accurate structure determination of two phases of Pigment Orange 34 (C34H28N8O2Cl2), a biphenyl pyrazolone pigment that has been industrially produced for more than 80 years and used for plastics application. The crystal structure of the high-temperature phase, which can be formed during plastic coloration, was determined at 220 °C. For the first time, we were able to observe a reversible phase transition in an industrial organic pigment in the solid state, even with atomic resolution, despite crystallites being submicrometer in size. By localizing hydrogen atoms, we were even able to detect the tautomeric state of the molecules at different temperatures. This demonstrates that precise, fast, and low-dose 3D ED measurements enable high-temperature studies the door for general in situ studies of nanocrystalline materials at the atomic level.
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Affiliation(s)
- Yaşar Krysiak
- Institute
of Inorganic Chemistry, Leibniz University
Hannover, Callinstraße 9, 30167 Hannover, Germany
| | - Sergi Plana-Ruiz
- Department
of Materials and Geoscience, Technische
Universität Darmstadt, Petersenstrasse 23, 64287 Darmstadt, Germany
- LENS,
MIND/IN2UB, Departament d’Enginyeria Electrònica i Biomèdica, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona, Catalonia, Spain
| | - Lothar Fink
- Institute
of Inorganic and Analytical Chemistry, Goethe
University Frankfurt am Main, Max-von-Laue-Str. 7, 60438 Frankfurt am Main, Germany
| | - Edith Alig
- Institute
of Inorganic and Analytical Chemistry, Goethe
University Frankfurt am Main, Max-von-Laue-Str. 7, 60438 Frankfurt am Main, Germany
| | - Ulrich Bahnmüller
- Institute
of Inorganic Chemistry, Leibniz University
Hannover, Callinstraße 9, 30167 Hannover, Germany
| | - Ute Kolb
- Department
of Materials and Geoscience, Technische
Universität Darmstadt, Petersenstrasse 23, 64287 Darmstadt, Germany
- Institute
of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Martin U. Schmidt
- Institute
of Inorganic and Analytical Chemistry, Goethe
University Frankfurt am Main, Max-von-Laue-Str. 7, 60438 Frankfurt am Main, Germany
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8
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Alić J, Lončarić I, Etter M, Rubčić M, Štefanić Z, Šekutor M, Užarević K, Stolar T. Direct in situ measurement of polymorphic transition temperatures under thermo-mechanochemical conditions. Phys Chem Chem Phys 2024; 26:4840-4844. [PMID: 38276968 DOI: 10.1039/d3cp04364a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
For the first time, we directly measured the onset and completion temperatures of polymorphic transitions under thermo-mechanochemical conditions by simultaneous in situ synchrotron powder X-ray diffraction and temperature monitoring. We determined the thermo-mechanochemical polymorphic transition temperature in 1-adamantyl-1-diamantyl ether to be 31 °C lower than the transition temperature determined by DSC. Our findings highlight the uniqueness of thermo-mechanochemical conditions, with potential applications in polymorph screening.
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Affiliation(s)
- Jasna Alić
- Ruđer Bošković Institute, Bijenička 54, 10 000 Zagreb, Croatia.
| | - Ivor Lončarić
- Ruđer Bošković Institute, Bijenička 54, 10 000 Zagreb, Croatia.
| | - Martin Etter
- Deutsches Elektronen-Synchrotron (DESY), Notkestraße 85, 22 607 Hamburg, Germany
| | - Mirta Rubčić
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10 000 Zagreb, Croatia
| | - Zoran Štefanić
- Ruđer Bošković Institute, Bijenička 54, 10 000 Zagreb, Croatia.
| | - Marina Šekutor
- Ruđer Bošković Institute, Bijenička 54, 10 000 Zagreb, Croatia.
| | | | - Tomislav Stolar
- Ruđer Bošković Institute, Bijenička 54, 10 000 Zagreb, Croatia.
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9
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Beran GJO. Frontiers of molecular crystal structure prediction for pharmaceuticals and functional organic materials. Chem Sci 2023; 14:13290-13312. [PMID: 38033897 PMCID: PMC10685338 DOI: 10.1039/d3sc03903j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 11/02/2023] [Indexed: 12/02/2023] Open
Abstract
The reliability of organic molecular crystal structure prediction has improved tremendously in recent years. Crystal structure predictions for small, mostly rigid molecules are quickly becoming routine. Structure predictions for larger, highly flexible molecules are more challenging, but their crystal structures can also now be predicted with increasing rates of success. These advances are ushering in a new era where crystal structure prediction drives the experimental discovery of new solid forms. After briefly discussing the computational methods that enable successful crystal structure prediction, this perspective presents case studies from the literature that demonstrate how state-of-the-art crystal structure prediction can transform how scientists approach problems involving the organic solid state. Applications to pharmaceuticals, porous organic materials, photomechanical crystals, organic semi-conductors, and nuclear magnetic resonance crystallography are included. Finally, efforts to improve our understanding of which predicted crystal structures can actually be produced experimentally and other outstanding challenges are discussed.
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Affiliation(s)
- Gregory J O Beran
- Department of Chemistry, University of California Riverside Riverside CA 92521 USA
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10
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Abstract
Twenty years ago, I wrote a Chem. Commun. feature article entitled "Crystal Engineering: where from? Where to?": an update is in order. In this Highlight I argue that molecular crystal engineering, one of the areas of fast development of the field, has definitely reached the stage of "delivering the goods": new functional materials assembled via non-covalent interactions and/or improved properties of existing materials. As a proof of concept, the crystal engineering approach to tackle two contemporary emergencies, namely, urea fertilizer degradation and development of antimicrobial resistance by pathogens, is discussed and application-driven examples are provided.
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Affiliation(s)
- Dario Braga
- Chemistry Department G. Ciamician, University of Bologna, Via F. Selmi 2, 4016 Bologna, Italy.
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11
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Allam T, Balderston DE, Chahal MK, Hilton KLF, Hind CK, Keers OB, Lilley RJ, Manwani C, Overton A, Popoola PIA, Thompson LR, White LJ, Hiscock JR. Tools to enable the study and translation of supramolecular amphiphiles. Chem Soc Rev 2023; 52:6892-6917. [PMID: 37753825 DOI: 10.1039/d3cs00480e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
This tutorial review focuses on providing a summary of the key techniques used for the characterisation of supramolecular amphiphiles and their self-assembled aggregates; from the understanding of low-level molecular interactions, to materials analysis, use of data to support computer-aided molecular design and finally, the translation of this class of compounds for real world application, specifically within the clinical setting. We highlight the common methodologies used for the study of traditional amphiphiles and build to provide specific examples that enable the study of specialist supramolecular systems. This includes the use of nuclear magnetic resonance spectroscopy, mass spectrometry, X-ray scattering techniques (small- and wide-angle X-ray scattering and single crystal X-ray diffraction), critical aggregation (or micelle) concentration determination methodologies, machine learning, and various microscopy techniques. Furthermore, this review provides guidance for working with supramolecular amphiphiles in in vitro and in vivo settings, as well as the use of accessible software programs, to facilitate screening and selection of druggable molecules. Each section provides: a methodology overview - information that may be derived from the use of the methodology described; a case study - examples for the application of these methodologies; and a summary section - providing methodology specific benefits, limitations and future applications.
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Affiliation(s)
- Thomas Allam
- School of Chemistry, University of Southampton, University Road, Southampton, SO17 1BJ, UK
| | - Dominick E Balderston
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Mandeep K Chahal
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Kira L F Hilton
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Charlotte K Hind
- Research and Evaluation, UKHSA, Porton Down, Salisbury SP4 0JG, UK
| | - Olivia B Keers
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Rebecca J Lilley
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Chandni Manwani
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Alix Overton
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Precious I A Popoola
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Lisa R Thompson
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Lisa J White
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
| | - Jennifer R Hiscock
- School of Chemistry and Forensic Science, University of Kent, Canterbury, CT2 7NH, UK.
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12
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Zheng Z, Yang T, Li D, Cao H, Gong J, Liu H, Zhou C, Liu L, Wei P, Gu X, Lu P, Qian J, Tang BZ. Molecular and Aggregate Synergistic Engineering of Aggregation-Induced Emission Luminogens to Manipulate Optical/Electronic Properties for Efficient and Diversified Functions. ACS NANO 2023; 17:8782-8795. [PMID: 37074290 DOI: 10.1021/acsnano.3c02134] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The optical/electronic properties of organic luminescent materials can be regulated by molecular structure modification, which not only requires sophisticated and time-consuming synthesis but also is unable to accurately afford the optical properties of materials in the aggregate state. Herein, a facile strategy of molecular and aggregate synergistic engineering is proposed to manipulate the optical/electronic properties of a luminogen, ACIK, in the solid state for efficient and diversified functions. ACIK is facilely synthesized and exhibits three polymorphic states (ACIK-Y, ACIK-R, and ACIK-N) with a large emission difference of 102 nm from yellow to near-infrared (NIR). Their structure-property relationships were investigated by crystallographic analyses and computational studies. ACIK-Y, with the most twisted structure, exhibits an intriguing color-tuned fluorescence between yellow and NIR in the solid state in response to multiple stimuli. Shuttle-like ACIK-R microcrystals exhibit an optical waveguide property with a low optical loss coefficient of 19 dB mm-1. ACIK dots display bright NIR-I emission, large Stokes shift, and strong NIR-II two-photon absorption. ACIK dots show specific lipid droplets-targeting capability and can be successfully applied for two-photon fluorescence imaging of mouse brain vasculature with deep penetration and high spatial resolution. This study will inspire more insights in developing advanced optical/electronic materials based on a single chromophore for practical applications.
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Affiliation(s)
- Zheng Zheng
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Tianyu Yang
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Dongyu Li
- State Key Laboratory of Modern Optical Instrumentations, Centre for Optical and Electromagnetic Research, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310058, China
- School of Optical and Electronic Information-Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Hui Cao
- School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China
| | - Junyi Gong
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China
| | - Haixiang Liu
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China
| | - Chengcheng Zhou
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Lijie Liu
- College of Science, Henan Agricultural University, 63 Agricultural Road, Zhengzhou, Henan 450002, China
| | - Peifa Wei
- Institutes of Physical Science and Information Technology, Anhui University, Hefei 230093, China
| | - Xinggui Gu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Ping Lu
- State Key Laboratory of Supramolecular Structure and Materials, Department of Chemistry, Jilin University, Changchun 130012, China
| | - Jun Qian
- State Key Laboratory of Modern Optical Instrumentations, Centre for Optical and Electromagnetic Research, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310058, China
| | - Ben Zhong Tang
- School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong, Shenzhen, Guangdong 518172, China
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13
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Okur AC, Erni P, Ouali L, Benczedi D, Amstad E. Controlling the crystal structure of succinic acid via microfluidic spray-drying. RSC Adv 2023; 13:7731-7737. [PMID: 36909742 PMCID: PMC9993402 DOI: 10.1039/d2ra06380h] [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: 10/10/2022] [Accepted: 03/01/2023] [Indexed: 03/14/2023] Open
Abstract
Many properties of materials, including their dissolution kinetics, hardness, and optical appearance, depend on their structure. Unfortunately, it is often difficult to control the structure of low molecular weight organic compounds that have a high propensity to crystallize if they are formulated from solutions wherein they have a high mobility. This limitation can be overcome by formulating these compounds within small airborne drops that rapidly dry, thereby limiting the time molecules have to arrange into the thermodynamically most stable phase. Such drops can be formed with a surface acoustic wave (SAW)-based spray-drier. In this paper, we demonstrate that the structure of a model low molecular weight compound relevant to applications in pharmacology and food, succinic acid, can be readily controlled with the supersaturation rate. Succinic acid particles preserve the metastable structure over at least 3 months if the initial succinic acid concentration is below 2% of its saturation concentration such that the supersaturation rate is high. We demonstrate that also the stability of the metastable phases against their transformation into the most stable phase increases with decreasing initial solute concentration and hence with increasing supersaturation rate of the spray-dried solution. These insights open up new opportunities to control the crystal structure and therefore properties of low molecular weight compounds that have a high propensity to crystallize.
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Affiliation(s)
- Aysu Ceren Okur
- Soft Materials Laboratory, Institute of Materials, École Polytechnique Fédérale de Lausanne (EPFL) Lausanne 1015 Switzerland
| | - Philipp Erni
- Firmenich SA, Corporate R&D Division PO Box 239 CH-1211 Geneva 8 Switzerland
| | - Lahoussine Ouali
- Firmenich SA, Corporate R&D Division PO Box 239 CH-1211 Geneva 8 Switzerland
| | - Daniel Benczedi
- Firmenich SA, Corporate R&D Division PO Box 239 CH-1211 Geneva 8 Switzerland
| | - Esther Amstad
- Soft Materials Laboratory, Institute of Materials, École Polytechnique Fédérale de Lausanne (EPFL) Lausanne 1015 Switzerland
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14
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Tom R, Gao S, Yang Y, Zhao K, Bier I, Buchanan EA, Zaykov A, Havlas Z, Michl J, Marom N. Inverse Design of Tetracene Polymorphs with Enhanced Singlet Fission Performance by Property-Based Genetic Algorithm Optimization. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2023; 35:1373-1386. [PMID: 36999121 PMCID: PMC10042130 DOI: 10.1021/acs.chemmater.2c03444] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 01/06/2023] [Indexed: 06/19/2023]
Abstract
The efficiency of solar cells may be improved by using singlet fission (SF), in which one singlet exciton splits into two triplet excitons. SF occurs in molecular crystals. A molecule may crystallize in more than one form, a phenomenon known as polymorphism. Crystal structure may affect SF performance. In the common form of tetracene, SF is experimentally known to be slightly endoergic. A second, metastable polymorph of tetracene has been found to exhibit better SF performance. Here, we conduct inverse design of the crystal packing of tetracene using a genetic algorithm (GA) with a fitness function tailored to simultaneously optimize the SF rate and the lattice energy. The property-based GA successfully generates more structures predicted to have higher SF rates and provides insight into packing motifs associated with improved SF performance. We find a putative polymorph predicted to have superior SF performance to the two forms of tetracene, whose structures have been determined experimentally. The putative structure has a lattice energy within 1.5 kJ/mol of the most stable common form of tetracene.
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Affiliation(s)
- Rithwik Tom
- Department
of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania15213, United States
| | - Siyu Gao
- Department
of Materials Science and Engineering, Carnegie
Mellon University, Pittsburgh, Pennsylvania15213, United States
| | - Yi Yang
- Department
of Materials Science and Engineering, Carnegie
Mellon University, Pittsburgh, Pennsylvania15213, United States
| | - Kaiji Zhao
- Department
of Materials Science and Engineering, Carnegie
Mellon University, Pittsburgh, Pennsylvania15213, United States
| | - Imanuel Bier
- Department
of Materials Science and Engineering, Carnegie
Mellon University, Pittsburgh, Pennsylvania15213, United States
| | - Eric A. Buchanan
- Department
of Chemistry, University of Colorado, Boulder, Colorado80309, United States
| | - Alexandr Zaykov
- Institute
of Organic Chemistry and Biochemistry, Czech
Academy of Sciences, 16610Prague 6, Czech
Republic
- Department
of Physical Chemistry, University of Chemistry
and Technology, 166 28Prague 6, Czech Republic
| | - Zdeněk Havlas
- Institute
of Organic Chemistry and Biochemistry, Czech
Academy of Sciences, 16610Prague 6, Czech
Republic
| | - Josef Michl
- Department
of Chemistry, University of Colorado, Boulder, Colorado80309, United States
- Institute
of Organic Chemistry and Biochemistry, Czech
Academy of Sciences, 16610Prague 6, Czech
Republic
| | - Noa Marom
- Department
of Physics, Carnegie Mellon University, Pittsburgh, Pennsylvania15213, United States
- Department
of Materials Science and Engineering, Carnegie
Mellon University, Pittsburgh, Pennsylvania15213, United States
- Department
of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania15213, United States
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15
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Elishav O, Podgaetsky R, Meikler O, Hirshberg B. Collective Variables for Conformational Polymorphism in Molecular Crystals. J Phys Chem Lett 2023; 14:971-976. [PMID: 36689770 PMCID: PMC9900638 DOI: 10.1021/acs.jpclett.2c03491] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 01/12/2023] [Indexed: 06/17/2023]
Abstract
Controlling polymorphism in molecular crystals is crucial in the pharmaceutical, dye, and pesticide industries. However, its theoretical description is extremely challenging, due to the associated long time scales (>1 μs). We present an efficient procedure for identifying collective variables that promote transitions between conformational polymorphs in molecular dynamics simulations. It involves applying a simple dimensionality reduction algorithm to data from short (∼ps) simulations of the isolated conformers that correspond to each polymorph. We demonstrate the utility of our method in the challenging case of the important energetic material, CL-20, which has three anhydrous conformational polymorphs at ambient pressure. Using these collective variables in Metadynamics simulations, we observe transitions between all solid polymorphs in the biased trajectories. We reconstruct the free energy surface and identify previously unknown defect and intermediate forms in the transition from one known polymorph to another. Our method provides insights into complex conformational polymorphic transitions of flexible molecular crystals.
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Affiliation(s)
- Oren Elishav
- School
of Chemistry, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Roy Podgaetsky
- School
of Chemistry, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Olga Meikler
- Rafael
Ltd., P.O. Box 2250, Haifa 3102102, Israel
| | - Barak Hirshberg
- School
of Chemistry, Tel Aviv University, Tel Aviv 6997801, Israel
- The
Center for Computational Molecular and Materials Science, Tel Aviv University, Tel Aviv 6997801, Israel
- The
Ratner Center for Single Molecule Science, Tel Aviv University, Tel Aviv 6997801, Israel
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16
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Saha BK, Nath NK, Thakuria R. Polymorphs with Remarkably Distinct Physical and/or Chemical Properties. CHEM REC 2023; 23:e202200173. [PMID: 36166697 DOI: 10.1002/tcr.202200173] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/30/2022] [Indexed: 01/21/2023]
Abstract
Polymorphism in crystals is known since 1822 and the credit goes to Mitscherlich who realized the existence of different crystal structures of the same compound while working with some arsenate and phosphate salts. Later on, this phenomenon was observed also in organic crystals. With the advent of different technologies, especially the easy availability of single crystal XRD instruments, polymorphism in crystals has become a common phenomenon. Almost 37 % of compounds (single component) are polymorphic to date. As the energies of the different polymorphic forms are very close to each other, small changes in crystallization conditions might lead to different polymorphic structures. As a result, sometimes it is difficult to control polymorphism. For this reason, it is considered to be a nuisance to crystal engineering. It has been realized that the property of a material depends not only on the molecular structure but also on its crystal structure. Therefore, it is not only of interest to academia but also has widespread applications in the materials science as well as pharmaceutical industries. In this review, we have discussed polymorphism which causes significant changes in materials properties in different fields of solid-state science, such as electrical, magnetic, SHG, thermal expansion, mechanical, luminescence, color, and pharmaceutical. Therefore, this review will interest researchers from supramolecular chemistry, materials science as well as medicinal chemistry.
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Affiliation(s)
- Binoy K Saha
- Department of Chemistry, Pondicherry University, Puducherry, 605014, India
| | - Naba K Nath
- Department of Chemistry, National Institute of Technology Meghalaya, Shillong, Meghalaya 793003, India
| | - Ranjit Thakuria
- Department of Chemistry, Gauhati University, Guwahati, 781014, India
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17
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Formation and Characterisation of Posaconazole Hydrate Form. Pharmaceuticals (Basel) 2022; 16:ph16010065. [PMID: 36678561 PMCID: PMC9862180 DOI: 10.3390/ph16010065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/19/2022] [Accepted: 12/29/2022] [Indexed: 01/04/2023] Open
Abstract
Posaconazole is an API added as Form I for the production of oral suspensions, but it is found as Form-S in the final formulation. In this study, it was found that this polymorphic conversion, which may affect the bioavailability, is due to an interaction with water. However, the relatively poor wettability of posaconazole Form I renders the complete wetting of its particles and production of pure Form-S challenging. Consequently, for its isolation, Form I should be dispersed in water followed by application of sonication for at least 10 min. Pure posaconazole Form-S was characterised using X-ray powder diffraction (XRPD), Raman spectroscopy, attenuated total reflection (ATR) spectroscopy, thermogravimetric analysis (TGA) and optical microscopy. From these techniques, posaconazole Form-S was characterised as a hydrate form, which includes three molecules of water per API molecule.
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18
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Order from disorder: Directed assembly of alkyl-π functional molecular liquids. Curr Opin Colloid Interface Sci 2022. [DOI: 10.1016/j.cocis.2022.101641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Castillo AE, Pérez-Gutiérrez E, Ceballos P, Venkatesan P, Thamotharan S, Siegler MA, Percino MJ. Non-covalent interactions towards 2-(4-(2,2-dicyanovinyl) benzylidene)malononitrile packing polymorphism due to solvent effect. Experimental and theoretical spectroscopy approach. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Nogueira BA, Lopes SM, Pinho e Melo TM, Paixão JA, Milani A, Castiglioni C, Fausto R. Molecular and crystal structures of N-picryl-m-phenolidine and investigation of single crystal polarized Raman spectra. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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21
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Hogan DT, Sutherland TC. Multiple aggregates from multiple polymorphs: structural and mechanistic insight into organic dye aggregates. NANOSCALE 2022; 14:10327-10334. [PMID: 35822504 DOI: 10.1039/d2nr03211b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This case study provides evidence for the appearance of multiple aggregation forms of a single organic dye, arising from its packing polymorphs in the solid state. Each aggregate can be spectroscopically matched to one polymorph, acquiring nanoscopic structural information even in the absence of conventional H- or J-type aggregation spectral features. The conversion from one polymorphic aggregate to another supports the action of Ostwald's rule of stages in organic aggregates suspended in solution. Mechanistically, dye molecules from one aggregate dissociate then renucleate the more stable aggregate form, the first demonstration for an aggregation-induced emission-active organic dye.
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Affiliation(s)
- David T Hogan
- Department of Chemistry, University of Calgary, 2500 University Dr NW, T2N 1N4, Calgary, Alberta, Canada.
| | - Todd C Sutherland
- Department of Chemistry, University of Calgary, 2500 University Dr NW, T2N 1N4, Calgary, Alberta, Canada.
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22
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Crystallization of Form II Paracetamol with the Assistance of Carboxylic Acids toward Batch and Continuous Processes. Pharmaceutics 2022; 14:pharmaceutics14051099. [PMID: 35631685 PMCID: PMC9147162 DOI: 10.3390/pharmaceutics14051099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/12/2022] [Accepted: 05/17/2022] [Indexed: 02/04/2023] Open
Abstract
Form II paracetamol has captured the interest of researchers due to its improved compressibility. However, its low stability has made it difficult to be produced on a large scale with good reproducibility. In the present study, the selective polymorphic formation of paracetamol was carried out by cooling crystallization with four types of additives: adipic acid, fumaric acid, oxalic acid, and succinic acid. It was found that: (1) the more additives that were added, the higher the probability of forming Form II paracetamol; (2) Form II paracetamol could be induced by seeding the paracetamol aqueous solution with Form II paracetamol and fumaric acid crystals, and not the other three carboxylic acids; (3) a new solution complex of paracetamol–oxalic acid, evidenced by the solubility diagram, was responsible for the selective nucleation of Form II paracetamol in the oxalic acid aqueous solution; and (4) the range of the degree of supersaturation for nucleating Form II paracetamol was extended with the assistance of oxalic acid or fumaric acid. In large-scale crystallization, Form II paracetamol was produced by the continuous crystallization of 44 mg of paracetamol/mL in 50 wt% of fumaric acid aqueous solution with a flow rate of 150 mL/min.
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23
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Rue KL, Niu G, Li J, Raptis RG. Crystal Structure Determination and Hirshfeld Analysis of a New Alternariol Packing Polymorph. CRYSTALS 2022; 12. [PMID: 35968538 PMCID: PMC9374539 DOI: 10.3390/cryst12050579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
A new polymorph of the mycotoxin alternariol is reported and characterized by single crystal X-ray diffraction. Structural data, Hirshfeld surface analysis, and 2D fingerprint plots are used to compare differences in the intermolecular interactions of the orthorhombic Pca21 Form I (previously reported) and the monoclinic P21/c Form II (herein reported). The polymorphs have small differences in planarity—7.55° and 2.19° between the terminal rings for Form I and Form II, respectively—that brings about significant differences in the crystal packing and O-H … H interactions.
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Affiliation(s)
- Kelly L. Rue
- Department of Chemistry and Biochemistry, College of Arts, Science & Education, Modesto A. Maidique Campus, Florida International University, Miami, FL 33199, USA
| | - Guodong Niu
- Department of Biological Sciences, College of Arts, Science & Education, Modesto A. Maidique Campus, Florida International University, Miami, FL 33199, USA
| | - Jun Li
- Department of Biological Sciences, College of Arts, Science & Education, Modesto A. Maidique Campus, Florida International University, Miami, FL 33199, USA
- Biomolecular Sciences Institute, College of Arts, Science & Education, Modesto A. Maidique Campus, Florida International University, Miami, FL 33199, USA
- Correspondence: (J.L.); (R.G.R.)
| | - Raphael G. Raptis
- Department of Chemistry and Biochemistry, College of Arts, Science & Education, Modesto A. Maidique Campus, Florida International University, Miami, FL 33199, USA
- Biomolecular Sciences Institute, College of Arts, Science & Education, Modesto A. Maidique Campus, Florida International University, Miami, FL 33199, USA
- Correspondence: (J.L.); (R.G.R.)
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24
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Beran GJO, Wright SE, Greenwell C, Cruz-Cabeza AJ. The interplay of intra- and intermolecular errors in modeling conformational polymorphs. J Chem Phys 2022; 156:104112. [DOI: 10.1063/5.0088027] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Conformational polymorphs of organic molecular crystals represent a challenging test for quantum chemistry because they require careful balancing of the intra- and intermolecular interactions. This study examines 54 molecular conformations from 20 sets of conformational polymorphs, along with the relative lattice energies and 173 dimer interactions taken from six of the polymorph sets. These systems are studied with a variety of van der Waals-inclusive density functionals theory models; dispersion-corrected spin-component-scaled second-order Møller–Plesset perturbation theory (SCS-MP2D); and domain local pair natural orbital coupled cluster singles, doubles, and perturbative triples [DLPNO-CCSD(T)]. We investigate how delocalization error in conventional density functionals impacts monomer conformational energies, systematic errors in the intermolecular interactions, and the nature of error cancellation that occurs in the overall crystal. The density functionals B86bPBE-XDM, PBE-D4, PBE-MBD, PBE0-D4, and PBE0-MBD are found to exhibit sizable one-body and two-body errors vs DLPNO-CCSD(T) benchmarks, and the level of success in predicting the relative polymorph energies relies heavily on error cancellation between different types of intermolecular interactions or between intra- and intermolecular interactions. The SCS-MP2D and, to a lesser extent, ωB97M-V models exhibit smaller errors and rely less on error cancellation. Implications for crystal structure prediction of flexible compounds are discussed. Finally, the one-body and two-body DLPNO-CCSD(T) energies taken from these conformational polymorphs establish the CP1b and CP2b benchmark datasets that could be useful for testing quantum chemistry models in challenging real-world systems with complex interplay between intra- and intermolecular interactions, a number of which are significantly impacted by delocalization error.
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Affiliation(s)
- Gregory J. O. Beran
- Department of Chemistry, University of California, Riverside, California 92521, USA
| | - Sarah E. Wright
- Department of Chemical Engineering and Analytical Science, University of Manchester, Manchester, United Kingdom
| | - Chandler Greenwell
- Department of Chemistry, University of California, Riverside, California 92521, USA
| | - Aurora J. Cruz-Cabeza
- Department of Chemical Engineering and Analytical Science, University of Manchester, Manchester, United Kingdom
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25
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Nogueira BA, Carvalho M, Paixão JA, Eusébio MES, Lopes SMM, Pinho e Melo TMVD, Fausto R. Portrayal of the color polymorphism in the 5-acetyl-derivative of ROY. CrystEngComm 2022. [DOI: 10.1039/d1ce01601f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel derivative of ROY, AcROY, was synthesized and studied in this work, where 3 different colored polymorphs were identified. The observed polymorphism of AcROY is an interesting case of packing-determined color polymorphism.
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Affiliation(s)
- Bernardo A. Nogueira
- University of Coimbra, CQC-IMS, Department of Chemistry, P-3004-535 Coimbra, Portugal
| | - Maria Carvalho
- University of Coimbra, CQC-IMS, Department of Chemistry, P-3004-535 Coimbra, Portugal
| | - José A. Paixão
- University of Coimbra, CFisUC, Department of Physics, P-3004-516 Coimbra, Portugal
| | | | - Susana M. M. Lopes
- University of Coimbra, CQC-IMS, Department of Chemistry, P-3004-535 Coimbra, Portugal
| | | | - Rui Fausto
- University of Coimbra, CQC-IMS, Department of Chemistry, P-3004-535 Coimbra, Portugal
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26
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Stolar T, Alić J, Lončarić I, Etter M, Jung D, Farha OK, Đilović I, Meštrović E, Užarević K. Sustainable solid form screening: mechanochemical control over nucleobase hydrogen-bonded organic framework polymorphism. CrystEngComm 2022. [DOI: 10.1039/d2ce00668e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The choice is yours! Liquid-assisted grinding can be used to control HOF polymorphism.
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Affiliation(s)
| | - Jasna Alić
- Ruđer Bošković Institute, Bijenička c. 54, Zagreb, Croatia
| | - Ivor Lončarić
- Ruđer Bošković Institute, Bijenička c. 54, Zagreb, Croatia
| | - Martin Etter
- Deutsches Elektronen-Synchrotron (DESY), Notkestr. 85, Hamburg, Germany
| | - Dahee Jung
- Department of Chemistry and International Institute of Nanotechnology, Northwestern University, Evanston, Illinois 60208, USA
| | - Omar K. Farha
- Department of Chemistry and International Institute of Nanotechnology, Northwestern University, Evanston, Illinois 60208, USA
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, USA
| | - Ivica Đilović
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, Zagreb, Croatia
| | - Ernest Meštrović
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, Zagreb, Croatia
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27
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Warren LR, McGowan E, Renton M, Morrison CA, Funnell NP. Direct evidence for distinct colour origins in ROY polymorphs. Chem Sci 2021; 12:12711-12718. [PMID: 34703557 PMCID: PMC8494124 DOI: 10.1039/d1sc04051k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 08/27/2021] [Indexed: 11/21/2022] Open
Abstract
ROY is one of the most well-studied families of crystal structures owing to it being the most polymorphic organic material on record. The various red, orange, and yellow colours of its crystal structures are widely-believed to originate from molecular conformation, though the orange needle (ON) polymorph is thought to be an exception. We report high-pressure, single-crystal X-ray measurements which provide direct experimental evidence that the colour origin in ON is intermolecular, revealing that the molecule undergoes minimal deformation but still exhibits a pronounced, reversible, pale orange → dark red colour change between ambient pressure and 4.18 GPa. Our experimental data are rationalised with band structures, calculated using an accurate hybrid DFT approach, where we are able to account for the variation in colour for five polymorphs of ROY. We highlight the outlier behaviour of ON which shows marked π⋯π stacking interactions that are directly modified through application of pressure. Band structure calculations confirm these intermolecular interactions as the origin of the colour change.
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Affiliation(s)
- Lisette R Warren
- University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh EH9 3FJ UK +44 (0)131 650 4725
| | - Evana McGowan
- University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh EH9 3FJ UK +44 (0)131 650 4725
| | - Margaret Renton
- University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh EH9 3FJ UK +44 (0)131 650 4725
| | - Carole A Morrison
- University of Edinburgh Joseph Black Building, David Brewster Road Edinburgh EH9 3FJ UK +44 (0)131 650 4725
| | - Nicholas P Funnell
- ISIS Neutron and Muon Facility, Rutherford Appleton Laboratory Didcot OX11 0QX UK +44 (0)1235 445385
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28
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29
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Pereira NAM, Nunes CM, Reva I, Fausto R. Evidence of IR-Induced Chemistry in a Neat Solid: Tautomerization of Thiotropolone by Thermal, Electronic, and Vibrational Excitations. J Phys Chem A 2021; 125:6394-6403. [PMID: 34275275 DOI: 10.1021/acs.jpca.1c04081] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Thiotropolone isolated in argon and xenon matrices (as monomers) or in a neat solid (as the crystalline or amorphous state) at low temperature was found to exist only in the thione-enol form. Visible light irradiation (λ ≥ 400 nm) leads to thione-enol → thiol-keto tautomerization in matrices and under neat solid conditions at 15 K. The assignment of the IR spectra of the two thiotropolone tautomers (thione-enol and thiol-keto) was carried out with the support of B3LYP/6-311+G(2d,p) computations. The thiol-keto form generated in situ in a neat solid was found to tautomerize back to the thione-enol upon annealing up to 100 K. Gaussian-4 (G4) computations estimate that such a tautomerization process has an energy barrier of ∼25 kJ mol-1, which is consistent with the observations. Moreover, it was found that narrowband IR irradiation of the thiol-keto form in a neat solid, at the frequency of its CH stretching overtones/combination modes, also induces tautomerization to the thione-enol form. Such a result constitutes an important demonstration of vibrationally induced chemistry under neat solid conditions.
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Affiliation(s)
- Nelson A M Pereira
- CQC, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Cláudio M Nunes
- CQC, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Igor Reva
- CQC, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal.,CIEPQPF, Department of Chemical Engineering, University of Coimbra, 3030-790 Coimbra, Portugal
| | - Rui Fausto
- CQC, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
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30
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Prentice JCA, Mostofi AA. Accurate and Efficient Computation of Optical Absorption Spectra of Molecular Crystals: The Case of the Polymorphs of ROY. J Chem Theory Comput 2021; 17:5214-5224. [PMID: 34291954 DOI: 10.1021/acs.jctc.1c00227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
When calculating the optical absorption spectra of molecular crystals from first principles, the influence of the crystalline environment on the excitations is of significant importance. For such systems, however, methods to describe the excitations accurately can be computationally prohibitive due to the relatively large system sizes involved. In this work, we demonstrate a method that allows optical absorption spectra to be computed both efficiently and at high accuracy. Our approach is based on the spectral warping method successfully applied to molecules in solvent. It involves calculating the absorption spectrum of a supercell of the full molecular crystal using semi-local time-dependent density functional theory (TDDFT), before warping the spectrum using a transformation derived from smaller-scale semi-local and hybrid TDDFT calculations on isolated dimers. We demonstrate the power of this method on three polymorphs of the well-known color polymorphic compound ROY and find that it outperforms both small-scale hybrid TDDFT dimer calculations and large-scale semi-local TDDFT supercell calculations, when compared to the experiment.
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Affiliation(s)
- Joseph C A Prentice
- Department of Materials, University of Oxford, Parks Road, Oxford OX1 3PH, U.K.,Department of Materials, Department of Physics, and the Thomas Young Centre for Theory and Simulation of Materials, Imperial College London, London SW7 2AZ, U.K
| | - Arash A Mostofi
- Department of Materials, Department of Physics, and the Thomas Young Centre for Theory and Simulation of Materials, Imperial College London, London SW7 2AZ, U.K
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31
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Medina-Mercado I, Colin-Molina A, Barquera-Lozada JE, Rodríguez-Molina B, Porcel S. Gold-Catalyzed Ascorbic Acid-Induced Arylative Carbocyclization of Alkynes with Aryldiazonium Tetrafluoroborates. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01826] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Ignacio Medina-Mercado
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Ciudad de México 04510, México
| | - Abraham Colin-Molina
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Ciudad de México 04510, México
| | - José Enrique Barquera-Lozada
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Ciudad de México 04510, México
| | - Braulio Rodríguez-Molina
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Ciudad de México 04510, México
| | - Susana Porcel
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Ciudad de México 04510, México
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32
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Zia M, Hameed S, Frontera A, Irran E, Naseer MM. Understanding the planar conformations in diarylsubstituted heteroarenes: structural and theoretical insights. CrystEngComm 2021. [DOI: 10.1039/d1ce00354b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We have synthesized and X-ray characterized a series of six diaryl-substituted heteroarenes in order to analyze unconventional intramolecular CAr–H⋯N/O in comparison to conventional H-bonds.
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Affiliation(s)
- Mehwash Zia
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad-45320
- Pakistan
- Department of Chemistry
| | - Shahid Hameed
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad-45320
- Pakistan
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca
- Spain
| | - Elisabeth Irran
- Fakultät II Institut für Chemie
- Technische Universität
- Berlin-10623
- Germany
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33
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Feng X, Becke AD, Johnson ER. Theoretical investigation of polymorph- and coformer-dependent photoluminescence in molecular crystals. CrystEngComm 2021. [DOI: 10.1039/d1ce00383f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A novel density-functional approach provides accurate predictions for the colour zoning of ROY polymorphs and the fluorescence energies of a family of 9-acetylanthracene cocrystals.
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Affiliation(s)
- Xibo Feng
- Department of Chemistry
- Dalhousie University
- Halifax
- Canada
| | - Axel D. Becke
- Department of Chemistry
- Dalhousie University
- Halifax
- Canada
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34
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Mazzone G, Sicilia E, Szerb EI, La Deda M, Ricciardi L, Furia E, Mendiguchia BS, Scarpelli F, Crispini A, Aiello I. Heteroleptic Cu( ii) saccharin complexes: intriguing coordination modes and properties. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00426c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A new Cu(ii) O,S-coordinated saccharinate complex is reported, showing crystallochromism and NIR emission in the solid state, in silico ligand exchange reactions with N/S-donor ligands in the presence of model molecules mimicking biological targets.
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Affiliation(s)
- Gloria Mazzone
- Dipartimento di Chimica e Tecnologie Chimiche
- Università della Calabria
- 87036 Arcavacata di Rende
- Italy
| | - Emilia Sicilia
- Dipartimento di Chimica e Tecnologie Chimiche
- Università della Calabria
- 87036 Arcavacata di Rende
- Italy
| | - Elisabeta I. Szerb
- “Coriolan Dragulescu” Institute of Chemistry
- Romanian Academy
- 300223 Timisoara
- Romania
| | - Massimo La Deda
- MAT-InLAB
- LASCAMM CR-INSTM
- Unità INSTM della Calabria
- Dipartimento di Chimica e Tecnologie Chimiche
- Università della Calabria
| | - Loredana Ricciardi
- CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza
- 87036 Arcavacata di Rende
- Italy
| | - Emilia Furia
- Dipartimento di Chimica e Tecnologie Chimiche
- Università della Calabria
- 87036 Arcavacata di Rende
- Italy
| | - Barbara Sanz Mendiguchia
- MAT-InLAB
- LASCAMM CR-INSTM
- Unità INSTM della Calabria
- Dipartimento di Chimica e Tecnologie Chimiche
- Università della Calabria
| | - Francesca Scarpelli
- MAT-InLAB
- LASCAMM CR-INSTM
- Unità INSTM della Calabria
- Dipartimento di Chimica e Tecnologie Chimiche
- Università della Calabria
| | - Alessandra Crispini
- MAT-InLAB
- LASCAMM CR-INSTM
- Unità INSTM della Calabria
- Dipartimento di Chimica e Tecnologie Chimiche
- Università della Calabria
| | - Iolinda Aiello
- MAT-InLAB
- LASCAMM CR-INSTM
- Unità INSTM della Calabria
- Dipartimento di Chimica e Tecnologie Chimiche
- Università della Calabria
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35
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Bhuin S, Bhattacharya S, Chakravarty M. Acceptor–donor–acceptor-linked triphenylamine and phenothiazine motifs as cousin molecules: the methyl effect on stimuli-responsiveness, crystallochromism, and dual-state emission. NEW J CHEM 2021. [DOI: 10.1039/d1nj04190h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Bulky/twisted triphenylamine or phenothiazine linked dicyanoaniline is synthesized to achieve dual-state emitters with crystallochromic and multi-stimuli responsive behaviour. The effect of methyl group on emission is also identified.
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Affiliation(s)
- Shouvik Bhuin
- Department of Chemistry, BITS-Pilani Hyderabad Campus, Jawahar Nagar, Shameerpet, Hyderabad 500078, Telangana, India
| | | | - Manab Chakravarty
- Department of Chemistry, BITS-Pilani Hyderabad Campus, Jawahar Nagar, Shameerpet, Hyderabad 500078, Telangana, India
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36
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Li J, Xu J, Yan L, Lu C, Yan H. A "flexible" carborane-cored luminogen: variable emission behaviours in aggregates. Dalton Trans 2021; 50:8029-8035. [PMID: 34009227 DOI: 10.1039/d1dt00233c] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The performance of tunable emissions in aggregates is highly desirable but challenging owing to the restricted molecular conformations of luminogens. Herein, we designed and synthesized a new "flexible" luminogen, a carborane-cored compound NAPH, which exhibits variable photophysical behaviours in aggregates, such as aggregation-induced emission, crystallization-induced emission, polymorph-dependent emission, and mechanochromic luminescence. Moreover, the two polymorphs with different emission colors show opposite mechano-responsive luminescence, which is rarely observed for single-component luminescent materials. Both theoretical calculations and photophysical experiments reveal that the carborane-cored luminogen could afford variable conformations. This endows the whole molecule with multiple conformations in aggregates, thus leading to variable emission behaviours. Therefore, the present work provides new access to the construction of multifunctional single-component solid-state luminescent materials.
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Affiliation(s)
- Jiaxin Li
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China.
| | - Jinkai Xu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China.
| | - Linbo Yan
- Sports Biochemistry Lab, College of Physical Education and Health, Guangxi Normal University, Guilin 541006, China
| | - Changsheng Lu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China.
| | - Hong Yan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, P. R. China.
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37
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Nogueira BA, Ildiz GO, Canotilho J, Eusébio MES, Henriques MSC, Paixão JA, Fausto R. Conformational Landscape and Polymorphism in 5-Acetic Acid Hydantoin. J Phys Chem A 2020; 124:6303-6318. [PMID: 32513000 DOI: 10.1021/acs.jpca.0c03789] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The conformational space of 5-acetic acid hydantoin {5AAH; [2-(2,5-dioxoimidazolidin-4-yl)acetic acid]} was investigated by quantum chemical calculations performed at the DFT(B3LYP)/6-311++G(d,p) level of theory. A total of 13 conformers were located in the potential energy surface of the molecule, six of them bearing the carboxylic group in the cis arrangement (O═C-O-H dihedral equal to ∼0°) and the other seven possessing this group in the trans configuration (O═C-O-H dihedral equal to ∼180°). The most stable conformer (cis-I) was trapped from the gas phase into a low temperature argon matrix (10 K), and its infrared spectrum was fully assigned, also with help of results of normal coordinates' analysis based on the DFT computed vibrational data. The electronic structure of this conformer was analyzed by using the natural bond orbital (NBO) method. The investigation of the thermal properties of 5AAH was undertaken by differential scanning calorimetry (DSC), polarized light thermal microscopy (PLTM) and Raman spectroscopy, allowing identification of five different polymorphs. Very interestingly, in the room temperature stable polymorph the molecular units of 5AAH assume the geometry of the highest-energy conformer predicted by the calculations for the isolated molecule.
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Affiliation(s)
- B A Nogueira
- CQC, Department of Chemistry, University of Coimbra, P-3004-535 Coimbra, Portugal
| | - G O Ildiz
- CQC, Department of Chemistry, University of Coimbra, P-3004-535 Coimbra, Portugal.,Faculty of Sciences and Letters, Department of Physics, Istanbul Kultur University, Atakoy Campus, Bakirkoy 34156, Istanbul, Turkey
| | - J Canotilho
- Faculty of Pharmacy, University of Coimbra, P-3000-548 Coimbra, Portugal
| | - M E S Eusébio
- CQC, Department of Chemistry, University of Coimbra, P-3004-535 Coimbra, Portugal
| | - M S C Henriques
- CFisUC, Department of Physics, University of Coimbra, P-3004-516 Coimbra, Portugal
| | - J A Paixão
- CFisUC, Department of Physics, University of Coimbra, P-3004-516 Coimbra, Portugal
| | - R Fausto
- CQC, Department of Chemistry, University of Coimbra, P-3004-535 Coimbra, Portugal
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