1
|
Hitchings TJ, Scatena R, Allan DR, Cairns AB, Saines PJ. Negative linear compressibility exhibited by the hybrid perovskite [(NH 2) 3C]Er(HCO 2) 2(C 2O 4). Chem Commun (Camb) 2024; 60:3271-3274. [PMID: 38420859 DOI: 10.1039/d3cc06208b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Extended framework materials with specific topologies can exhibit unusual mechanical behaviour, such as expanding in one direction under hydrostatic (uniform) pressure, known as negative linear compressibility (NLC). Here, two hybrid perovskite frameworks with winerack structures, a known NLC topology, are investigated under pressure. [C(NH2)3]Er(HCO2)2(C2O4) exhibits NLC from ambient pressure to 2.63(10) GPa and is the first reported NLC hybrid perovskite from ambient pressure. However, isostructural [(CH3)2NH2]Er(HCO2)2(C2O4) instead compresses relatively moderately along all axes before it undergoes a phase transition above 0.37(10) GPa. The differences in the mechanical properties can be interpreted from differences in host-guest interactions within these frameworks, primarily their hydrogen bond networks.
Collapse
Affiliation(s)
- Thomas J Hitchings
- School of Chemistry and Forensic Science, Ingram Building, University of Kent, Canterbury, Kent, CT2 7NH, UK.
| | - Rebecca Scatena
- Diamond Light Source, Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Fermi Avenue, Didcot, OX11 0DE, UK
| | - David R Allan
- Diamond Light Source, Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Fermi Avenue, Didcot, OX11 0DE, UK
| | - Andrew B Cairns
- Department of Materials, Imperial College London, Royal School of Mines, Exhibition Road, SW7 2AZ, UK
- London Centre for Nanotechnology, Imperial College London, London SW7 2AZ, UK
| | - Paul J Saines
- School of Chemistry and Forensic Science, Ingram Building, University of Kent, Canterbury, Kent, CT2 7NH, UK.
| |
Collapse
|
2
|
Sacharczuk N, Olejniczak A, Bujak M, Dziubek KF, Katrusiak A, Podsiadło M. Conformation-aggregation interplay in the simplest aliphatic ethers probed under high pressure. IUCRJ 2024; 11:57-61. [PMID: 38019132 PMCID: PMC10833391 DOI: 10.1107/s2052252523009995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 11/16/2023] [Indexed: 11/30/2023]
Abstract
The structures of the simplest symmetric primary ethers [(CnH2n+1)2O, n = 1-3] determined under high pressure revealed their conformational preferences and intermolecular interactions. In three new polymorphs of diethyl ether (C2H5)2O, high pressure promotes intermolecular CH...O contacts and enforces a conversion from the trans-trans conformer present in the α, β and γ phases to the trans-gauche conformer, which is higher in energy by 6.4 kJ mol-1, in the δ phase. Two new polymorphs of dimethyl ether (CH3)2O display analogous transformations of the CH...O bonds. The crystal structure of di-n-propyl ether (C3H7)2O, determined for the first time, is remarkably stable over the whole pressure range investigated from 1.70 up to 5.30 GPa.
Collapse
Affiliation(s)
- Natalia Sacharczuk
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, Poznan 61-614, Poland
| | - Anna Olejniczak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, Poznan 61-614, Poland
| | - Maciej Bujak
- Faculty of Chemistry, University of Opole, Oleska 48, Opole 45-052, Poland
| | - Kamil Filip Dziubek
- Institut für Mineralogie und Kristallographie, Universität Wien, Josef-Holaubek-Platz 2, Wien A-1090, Austria
| | - Andrzej Katrusiak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, Poznan 61-614, Poland
| | - Marcin Podsiadło
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznanskiego 8, Poznan 61-614, Poland
| |
Collapse
|
3
|
Rufino FM, Vasconcelos DLM, Freire PTC, Oliveira RC, Remédios CMR, da Silva JH, Alabarse FG, Lima JA. In situ Raman spectroscopy and synchrotron X-ray diffraction studies on maleic acid under high pressure conditions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 303:123264. [PMID: 37611523 DOI: 10.1016/j.saa.2023.123264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 08/08/2023] [Accepted: 08/14/2023] [Indexed: 08/25/2023]
Abstract
Maleic acid was studied by Raman spectroscopy and powder synchrotron X-ray diffraction (XRD) under high pressure conditions by using a diamond anvil cell. The Raman spectroscopy measurements were performed from ambient pressure up to 9.2 GPa in the 100-3200 cm-1 spectral range. While the XRD measurements were performed up to 10.1 GPa. Here we present the pressure-dependence behavior from both the Raman modes and cell parameters. Maleic acid lattice parameters decrease anisotropically as a function of pressure and a reduction of 27% in the volume of the unit cell was observed. Modifications in the material's compressibility were observed at around 2 and 6 GPa.
Collapse
Affiliation(s)
- F M Rufino
- Departamento de Física, Universidade Federal do Ceará, C. P. 6030, CEP 60455-900 Fortaleza, CE, Brazil
| | - D L M Vasconcelos
- Faculdade de Educação Ciências e Letras do Sertão Central, Universidade Estadual do Ceará, CEP 63.902-098 Quixadá, CE, Brazil
| | - P T C Freire
- Departamento de Física, Universidade Federal do Ceará, C. P. 6030, CEP 60455-900 Fortaleza, CE, Brazil
| | - R C Oliveira
- Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, CEP 66075-110 - Belém-PA, Brazil
| | - C M R Remédios
- Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, CEP 66075-110 - Belém-PA, Brazil
| | - J H da Silva
- Universidade Federal do Cariri, CEP 63000-000 Juazeiro do Norte, CE, Brazil
| | - F G Alabarse
- Elettra Sincrotrone Trieste, S.S. 14 km 163.5, Area Science Park, 34149 Basovizza, Trieste, Italy
| | - J A Lima
- Departamento de Física, Universidade Federal do Ceará, C. P. 6030, CEP 60455-900 Fortaleza, CE, Brazil.
| |
Collapse
|
4
|
Nakagawa T, Ding Y, Bu K, Lü X, Liu H, Moliterni A, Popović J, Mihalik M, Jagličić Z, Mihalik M, Vrankić M. Photophysical Behavior of Triethylmethylammonium Tetrabromoferrate(III) under High Pressure. Inorg Chem 2023; 62:19527-19541. [PMID: 38044824 DOI: 10.1021/acs.inorgchem.3c02607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
The pressure-induced properties of hybrid organic-inorganic ferroelectrics (HOIFs) with tunable structures and selectable organic and inorganic components are important for device fabrication. However, given the structural complexity of polycrystalline HOIFs and the limited resolution of pressure data, resolving the structure-property puzzle has so far been the exception rather than the rule. With this in mind, we present a collection of in situ high-pressure data measured for triethylmethylammonium tetrabromoferrate(III), ([N(C2H5)3CH3][FeBr4]) (EMAFB) by unraveling its flexible physical and photophysical behavior up to 80 GPa. Pressure-driven X-ray diffraction and Raman spectroscopy disclose its soft and reversible structural distortion, creating room for delicate band gap modulation. During compression, orange turns dark red at ∼2 GPa, and further compression results in piezochromism, leading to opaque black, while decompressed EMAFB appears in an orange hue. Assuming that the mechanical softness of EMAFB is the basis for reversible piezochromic control, we present alternations in the electronic landscape leading to a 1.22 eV band narrowing at 20.3 GPa while maintaining the semiconducting character at 72 GPa. EMAFB exhibits an emission enhancement, manifested by an increase of photoluminescence up to 17.3 GPa, correlating with the onsets of structural distortion and amorphization. The stimuli-responsive behavior of EMAFB, exhibiting stress-activated modification of the electronic structure, can enrich the physical library of HOIFs suitable for pressure-sensing technologies.
Collapse
Affiliation(s)
- Takeshi Nakagawa
- Center for High-Pressure Science & Technology Advanced Research, 100094 Beijing, P. R. China
| | - Yang Ding
- Center for High-Pressure Science & Technology Advanced Research, 100094 Beijing, P. R. China
| | - Kejun Bu
- Center for High-Pressure Science & Technology Advanced Research, 100094 Beijing, P. R. China
| | - Xujie Lü
- Center for High-Pressure Science & Technology Advanced Research, 100094 Beijing, P. R. China
| | - Haozhe Liu
- Center for High-Pressure Science & Technology Advanced Research, 100094 Beijing, P. R. China
| | - Anna Moliterni
- Institute of Crystallography (IC)-CNR, Via Amendola 122/O, 70126 Bari, Italy
| | - Jasminka Popović
- Division of Materials Physics, Rud̵er Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
| | - Marian Mihalik
- Institute of Experimental Physics, Watsonova 47, 040 01 Košice, Slovak Republic
| | - Zvonko Jagličić
- Institute of Mathematics, Physics and Mechanics, Jadranska 19, 1000 Ljubljana, Slovenia
- Faculty of Civil and Geodetic Engineering, University of Ljubljana, Jamova 2, 1000 Ljubljana, Slovenia
| | - Matúš Mihalik
- Institute of Experimental Physics, Watsonova 47, 040 01 Košice, Slovak Republic
| | - Martina Vrankić
- Division of Materials Physics, Rud̵er Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia
| |
Collapse
|
5
|
Meersman F, Quesada-Cabrera R, Filinchuk Y, Dmitriev V, McMillan PF. Nanomechanical properties of SSTSAA microcrystals are dominated by the inter-sheet packing. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2023; 381:20220340. [PMID: 37691469 DOI: 10.1098/rsta.2022.0340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 06/12/2023] [Indexed: 09/12/2023]
Abstract
Amyloid fibrils have been associated with human disease for many decades, but it has also become apparent that they play a functional, non-disease-related role in e.g. bacteria and mammals. Moreover, they have been shown to possess interesting mechanical properties that can be harnessed for future man-made applications. Here, the mechanical behaviour of SSTSAA microcrystals has been investigated. The SSTSAA peptide organization in these microcrystals has been related to that in the corresponding amyloid fibrils. Using high-pressure X-ray diffraction experiments, the bulk modulus K, which is the reciprocal of the compressibility β, has been calculated to be 2.48 GPa. This indicates that the fibrils are tightly packed, although the packing of most native globular proteins is even better. It is shown that the value of the bulk modulus is mainly determined by the compression along the c-axis, that relates to the inter-sheet distance in the fibrils. These findings corroborate earlier data obtained by AFM and molecular dynamics simulations that showed that mechanical resistance varies according to the direction of the applied strain, which can be related to packing and hydrogen bond contributions. Pressure experiments provide complementary information to these techniques and help to acquire a full mechanical characterization of biomolecular assemblies. This article is part of the theme issue 'Exploring the length scales, timescales and chemistry of challenging materials (Part 2)'.
Collapse
Affiliation(s)
- Filip Meersman
- Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Raúl Quesada-Cabrera
- Department of Chemistry, Christopher Ingold Laboratory, University College London, 20 Gordon Street, London WC1H 0AJ, UK
- Department of Chemistry, Institute of Environmental Studies and Natural Resources (iUNAT), Universidad de Las Palmas de Gran Canaria, Campus de Tafira, 35017 Las Palmas, Spain
| | - Yaroslav Filinchuk
- Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place L. Pasteur 1, 1348 Louvain-la-Neuve, Belgium
| | - Vladimir Dmitriev
- Swiss-Norwegian Beamlines, ESRF, Boite Postale 220, 38043, Grenoble, France
| | - Paul F McMillan
- Department of Chemistry, Christopher Ingold Laboratory, University College London, 20 Gordon Street, London WC1H 0AJ, UK
| |
Collapse
|
6
|
In-situ Raman study of α-D-glucose under different pressure and temperature. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
7
|
Diana E, Priola E, Marabello D, Giordana A, Andreo J, Freire PTC, Benzi P, Operti L, Andreo L, Curetti N, Benna P. Crystal engineering of aurophilic supramolecular architectures and coordination polymers based on butterfly-like Copper-dicyanoaurate complexes: vapochromism, P-T behaviour and multi-metallic cocrystal formation. CrystEngComm 2022. [DOI: 10.1039/d1ce00964h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Using the equilibrium properties of CuII in the presence of the chelating ligand and the characteristics of the dicyanoaurate anion, we were able to obtain a family of 10 bimetallic...
Collapse
|
8
|
Olejniczak A, Katrusiak A, Podsiadło M, Katrusiak A. Stochastic hydration of a high-nitro-gen-content molecular compound recrystallized under pressure. IUCRJ 2022; 9:49-54. [PMID: 35059209 PMCID: PMC8733875 DOI: 10.1107/s2052252521010381] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 10/07/2021] [Indexed: 06/14/2023]
Abstract
Partial hydration of organic compounds can be achieved by high-pressure crystallization. This has been demonstrated for the high-nitro-gen-content compound 6-chloro-1,2,3,4-tetrazolo[1,5-b]pyridazine (C4H2N5Cl), which becomes partly hydrated by isochoric crystallizations below 0.15 GPa. This hydrate, C4H2N5Cl·xH2O, is isostructural with the ambient-pressure phase α of C4H2N5Cl, but the crystal volume is somewhat larger than that of the anhydrate. At 0.20 GPa, the α-C4H2N5Cl anhydrate phase transforms abruptly into a new higher-symmetry phase, α'; the transformation is clearly visible due to a strong contraction of the crystals. The hydrate α-C4H2N5Cl·xH2O can also be isothermally compressed up to 0.30 GPa before transforming to the α'-C4H2N5Cl·xH2O phase. The isochoric recrystallization of C4H2N5Cl above 0.18 GPa yields a new anhydrous phase β, which, on releasing pressure, transforms back to the α phase below 0.15 GPa. The structural transition from the α to the β phase is destructive for the single crystal and involves a large volume drop and significant elongation of all the shortest intermolecular distances which are the CH⋯N and CH⋯Cl hydrogen bonds, as well as the N⋯N contacts. The α-to-α' phase transition increases the crystal symmetry in the subgroup relation; however, there are no structural nor symmetry relations between phases α and β.
Collapse
Affiliation(s)
- Anna Olejniczak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland
| | - Anna Katrusiak
- Department of Organic Chemistry, Poznan University of Medical Sciences, Grunwaldzka 6, Poznań 60-780, Poland
| | - Marcin Podsiadło
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland
| | - Andrzej Katrusiak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznań 61-614, Poland
| |
Collapse
|
9
|
Bartashevich EV, Sobalev SA, Matveychuk YV, Tsirelson VG. SIMULATION OF THE COMPRESSIBILITY OF ISOSTRUCTURAL HALOGEN CONTAINING CRYSTALS ON MACRO- AND MICROLEVELS. J STRUCT CHEM+ 2021. [DOI: 10.1134/s0022476621100164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
10
|
Abstract
This short review article provides the reader with a summary of the history of organic conductors. To retain a neutral and objective point of view regarding the history, background, novelty, and details of each research subject within this field, a thousand references have been cited with full titles and arranged in chronological order. Among the research conducted over ~70 years, topics from the last two decades are discussed in more detail than the rest. Unlike other papers in this issue, this review will help readers to understand the origin of each topic within the field of organic conductors and how they have evolved. Due to the advancements achieved over these 70 years, the field is nearing new horizons. As history is often a reflection of the future, this review is expected to show the future directions of this research field.
Collapse
|
11
|
How can single particle compression and nanoindentation contribute to the understanding of pharmaceutical powder compression? Eur J Pharm Biopharm 2021; 165:203-218. [PMID: 34010689 DOI: 10.1016/j.ejpb.2021.05.009] [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: 03/16/2021] [Revised: 05/07/2021] [Accepted: 05/09/2021] [Indexed: 11/23/2022]
Abstract
The deformation behaviour of a powder and, thus, of the individual particles is a crucial parameter in powder compaction and affects powder compressibility and compactibility. The classical approach for the characterization of the deformation behaviour is the performance of powder compression experiments combined with the application of mathematical models, such as the Heckel-Model, for the derivation of characteristic compression parameters. However, the correlation of these parameters with the deformation behaviour is physically often not well understood. Single particle compression and nanoindentation enables the in-depth investigation of the deformation behaviour of particulate materials. In this study, single particle compression experiments were performed for the characterization of the deformation behaviour of common pharmaceutical excipients and active pharmaceutical ingredients (APIs) with various, irregular particle morphologies of industrial relevance and the findings are compared with the results from powder compression. The technique was found useful for the characterization and clarification of the qualitative deformation behaviour. However, the derivation of a quantitative functional relationship between single particle deformation behavior and powder compression is limited. Nanoindentation was performed as complementary technique for the characterization of the micromechanical behavior of the APIs. A linear relationship between median indentation hardness and material densification strength as characteristic parameter derived by in-die powder compression analysis is found.
Collapse
|
12
|
Vasconcelos DLM, de Sousa FF, da Silva Filho JG, Teixeira AMR, Façanha Filho PF, Ribeiro PRS, Freire PTC. Raman spectroscopy of captopril crystals under low-temperature conditions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 243:118734. [PMID: 32810777 DOI: 10.1016/j.saa.2020.118734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 05/22/2020] [Accepted: 07/04/2020] [Indexed: 06/11/2023]
Abstract
The polymorphism is a characteristic of several active principles, and can affect the bioavailability of a drug. Among the drugs used in the treatment of heart diseases, captopril is one of the most widely used in the world. Despite the knowledge of vibrational properties of captopril under high temperature and under high pressure, a lack of information impedes the understanding of the substance in the crystal form at low temperatures. In this research, we investigated the vibrational properties of captopril crystals under cryogenic conditions in the 300-8 K interval using Raman spectroscopy. By observing the behavior of the inter- and intra-molecular vibrations it was possible to infer that the captopril molecules suffered a rearranging into the unit cell due slight orientational changes mainly involving CH⋯O hydrogen bonds. The phenomenon occurs in a large temperature range. However, the observed changes do not suggest the occurrence of a structural phase transition and the Raman spectra indicate that the trans conformation is recorded down to the lowest temperature available in the experiments.
Collapse
Affiliation(s)
- D L M Vasconcelos
- Departamento de Física, Universidade Federal do Ceará, C.P. 6030, Campus do Pici, 60455-760 Fortaleza, CE, Brazil.
| | - F F de Sousa
- Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, CEP 66075-110 Belém, PA, Brazil
| | - J G da Silva Filho
- Centro de Ciências Sociais, Saúde e Tecnologia (CCSST), Universidade Federal do Maranhão, Campus II, 65900-410 Imperatriz, MA, Brazil
| | - A M R Teixeira
- Departamento de Física, Universidade Regional do Cariri, 63.010-970 Juazeiro do Norte, CE, Brazil
| | - P F Façanha Filho
- Centro de Ciências Sociais, Saúde e Tecnologia (CCSST), Universidade Federal do Maranhão, Campus II, 65900-410 Imperatriz, MA, Brazil
| | - P R S Ribeiro
- Centro de Ciências Sociais, Saúde e Tecnologia (CCSST), Universidade Federal do Maranhão, Campus II, 65900-410 Imperatriz, MA, Brazil
| | - P T C Freire
- Departamento de Física, Universidade Federal do Ceará, C.P. 6030, Campus do Pici, 60455-760 Fortaleza, CE, Brazil
| |
Collapse
|
13
|
Sivakumar A, Saranraj A, Dhas SSJ, Sivaprakash P, Arumugam S, Dhas SAMB. Spectroscopic assessment on the stability of benzophenone crystals at shock waves loaded condition. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 242:118725. [PMID: 32736220 DOI: 10.1016/j.saa.2020.118725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 06/20/2020] [Accepted: 07/04/2020] [Indexed: 06/11/2023]
Abstract
In recent years, there have been few thousands of non-linear optical (NLO) materials proposed for a wide array of technological applications. But unfortunately, most of the materials do not fit into the actual standard required for the specific purposes in terms of their efficiency, environmental resistance, cost effectiveness, availability, stability and durability. Hence, searching for the most suitable material for every specific technological application has become the necessity of being a continuous process until it is found. For the present experiment, we have chosen benzophenone crystal for the shock wave recovery experiment. Raman and powder X-ray diffraction (XRD) techniques have been utilized to evaluate the molecular and structural performances of the title material against the impact of shock waves and the obtained crystallographic structural properties are compared with potassium dihydrogen phosphate (KPD) crystal. The obtained Raman and XRD results demonstrate that the title material has high shock resistant property even though it is a mechanically soft material as well as it has very low melting point (48 °C).
Collapse
Affiliation(s)
- A Sivakumar
- Department of Physics, Abdul Kalam Research Center, Sacred Heart College, Tirupattur, Vellore 635 601, Tamil Nadu, India
| | - A Saranraj
- Department of Physics, Sri Venkateswara College of Engineering and Technology, Chittoor 517 127, Andhra Pradesh, India
| | - S Sahaya Jude Dhas
- Department of Physics, Kings Engineering College, Sriperumbudur, Chennai 602 117, Tamilnadu, India
| | - P Sivaprakash
- Centre for High Pressure Research, School of Physics, Bharathidasan University, Tiruchirapalli 620 024, Tamilnadu, India
| | - S Arumugam
- Centre for High Pressure Research, School of Physics, Bharathidasan University, Tiruchirapalli 620 024, Tamilnadu, India
| | - S A Martin Britto Dhas
- Department of Physics, Abdul Kalam Research Center, Sacred Heart College, Tirupattur, Vellore 635 601, Tamil Nadu, India.
| |
Collapse
|
14
|
Olejniczak A, Katrusiak A, Podsiadło M, Katrusiak A. Crystal design by CH...N and N...N interactions: high-pressure structures of high-nitrogen-content azido-triazolopyridazines compounds. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2020; 76:1136-1142. [PMID: 33289725 DOI: 10.1107/s2052520620014493] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 10/30/2020] [Indexed: 06/12/2023]
Abstract
High-nitrogen-content compounds 6-azido-1,2,4-triazolo[4,3-b]pyridazine (C5H3N7) and its 3-methyl derivative (C6H5N7) have been in situ crystallized in a diamond-anvil cell and their structures determined by single-crystal X-ray diffraction. Under ambient and high-pressure conditions the crystallizations yield the same phases: the C5H3N7 anhydrate and C6H5N7 hydrated clathrate. In both the structures there are clearly distinguished regions of short CH...N and N...N intermolecular contacts, the latter involving exclusively the azide groups. High pressure initially increases the contents of water in the channel pores of the clathrate.
Collapse
Affiliation(s)
- Anna Olejniczak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznań, 61-614, Poland
| | - Anna Katrusiak
- Department of Organic Chemistry, Poznan University of Medical Sciences, Grunwaldzka 6, Poznań, 60-780, Poland
| | - Marcin Podsiadło
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznań, 61-614, Poland
| | - Andrzej Katrusiak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, Poznań, 61-614, Poland
| |
Collapse
|
15
|
Yao X, Fu C, Zhang S, Cheng L, Jiang Z. Structure investigation of β-D-fructose crystal under high pressure: Raman scattering, IR absorption, and synchrotron X-ray diffraction. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128746] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
16
|
Abraham NS, Shirts MR. Statistical Mechanical Approximations to More Efficiently Determine Polymorph Free Energy Differences for Small Organic Molecules. J Chem Theory Comput 2020; 16:6503-6512. [PMID: 32877183 DOI: 10.1021/acs.jctc.0c00570] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Methods to efficiently determine the relative stability of polymorphs of organic crystals are highly desired in crystal structure predictions (CSPs). Current methodologies include calculating the free energy of static lattice phonons, quasi-harmonic approximations (QHA), and computing the full thermodynamic cycle using replica exchange molecular dynamics (REMD). We found that 13 out of the 29 systems minimized from experimental crystal structures restructured to a lower energy minimum when heated and annealed using REMD, a phenomenon that QHA alone cannot capture. Here, we present a series of methods that are intermediate in accuracy and expense between QHA and computing the full thermodynamic cycle, which can save 42-80% of the computational cost and introduces, on this benchmark, a relatively small (0.16 ± 0.04 kcal/mol) error relative to the full thermodynamic cycle. In particular, a method that Boltzmann weights harmonic free energies from along the trajectory of REMD replica exchange appears to be an appropriate intermediate between QHA and the full thermodynamic cycle using MD when screening crystal polymorph stability.
Collapse
Affiliation(s)
- Nathan S Abraham
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Michael R Shirts
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| |
Collapse
|
17
|
A Review on High Pressure Experiments for Study of Crystallographic Behavior and Polymorphism of Pharmaceutical Materials. J Pharm Sci 2020; 109:2640-2653. [DOI: 10.1016/j.xphs.2020.05.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 04/16/2020] [Accepted: 05/04/2020] [Indexed: 11/19/2022]
|
18
|
Sahoo S, Ravindran TR, Rajaraman R, Srihari V, Pandey KK, Chandra S. Pressure-Induced Amorphization of Diisopropylammonium Perchlorate Studied by Raman Spectroscopy and X-ray Diffraction. J Phys Chem A 2020; 124:1993-2000. [PMID: 32039598 DOI: 10.1021/acs.jpca.9b11325] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Diisopropylammonium salts have drawn attention in recent years due to their room-temperature ferroelectric properties. Triclinic diisopropylammonium perchlorate (DIPAP) exhibits ferroelectricity at room temperature. We have carried out density functional theory calculations to assign the phonon modes in DIPAP. High-pressure Raman spectra of DIPAP are recorded up to ∼3 GPa. Discontinuity in the NH2 bending and stretching mode frequencies and the appearance of new bands at 0.7 GPa suggest a phase transition by a rearrangement in the hydrogen network. Broadening of lattice modes at 1.3-1.7 GPa indicates a loss of crystalline nature above 1.7 GPa. High-pressure synchrotron X-ray diffraction of DIPAP shows an isostructural phase transition at 0.6 GPa and confirms amorphization at 1.5 GPa that may lead to a loss of ferroelectricity above this pressure. The ambient phase becomes reversible after releasing the pressure. The bulk modulus of DIPAP is determined to be 16.5 GPa.
Collapse
Affiliation(s)
- Shradhanjali Sahoo
- Materials Science Group, Indira Gandhi Centre for Atomic Research, HBNI, Kalpakkam 603102, Tamil Nadu, India
| | - T R Ravindran
- Materials Science Group, Indira Gandhi Centre for Atomic Research, HBNI, Kalpakkam 603102, Tamil Nadu, India
| | - R Rajaraman
- Materials Science Group, Indira Gandhi Centre for Atomic Research, HBNI, Kalpakkam 603102, Tamil Nadu, India
| | - V Srihari
- High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - K K Pandey
- High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Sharat Chandra
- Materials Science Group, Indira Gandhi Centre for Atomic Research, HBNI, Kalpakkam 603102, Tamil Nadu, India
| |
Collapse
|
19
|
Cabiscol R, Shi H, Wünsch I, Magnanimo V, Finke JH, Luding S, Kwade A. Effect of particle size on powder compaction and tablet strength using limestone. ADV POWDER TECHNOL 2020. [DOI: 10.1016/j.apt.2019.12.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
20
|
Lotti P, Milani S, Merlini M, Joseph B, Alabarse F, Lausi A. Single-crystal diffraction at the high-pressure Indo-Italian beamline Xpress at Elettra, Trieste. JOURNAL OF SYNCHROTRON RADIATION 2020; 27:222-229. [PMID: 31868756 DOI: 10.1107/s1600577519015170] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 11/11/2019] [Indexed: 06/10/2023]
Abstract
In this study the first in situ high-pressure single-crystal X-ray diffraction experiments at Xpress, the Indo-Italian beamline of the Elettra synchrotron, Trieste (Italy), are reported. A description of the beamline experimental setup and of the procedures for single-crystal centring, data collection and processing, using diamond anvil cells, are provided. High-pressure experiments on a synthetic crystal of clinoenstatite (MgSiO3), CaCO3 polymorphs and a natural sample of leucophoenicite [Mn7Si3O12(OH)2] validated the suitability of the beamline experimental setup to: (i) locate and characterize pressure-induced phase transitions; (ii) solve ab initio the crystal structure of high-pressure polymorphs; (iii) perform fine structural analyses at the atomic scale as a function of pressure; (iv) disclose complex symmetry and structural features undetected using conventional X-ray sources.
Collapse
Affiliation(s)
- Paolo Lotti
- Dipartimento di Scienze della Terra, Università degli Studi di Milano, Via Botticelli 23, 20133 Milano, Italy
| | - Sula Milani
- Dipartimento di Scienze della Terra, Università degli Studi di Milano, Via Botticelli 23, 20133 Milano, Italy
| | - Marco Merlini
- Dipartimento di Scienze della Terra, Università degli Studi di Milano, Via Botticelli 23, 20133 Milano, Italy
| | - Boby Joseph
- Elettra Sincrotrone Trieste ScPA, Strada Statale 14, km 163.5, Basovizza, 34149 Trieste, Italy
| | - Frederico Alabarse
- Elettra Sincrotrone Trieste ScPA, Strada Statale 14, km 163.5, Basovizza, 34149 Trieste, Italy
| | - Andrea Lausi
- Elettra Sincrotrone Trieste ScPA, Strada Statale 14, km 163.5, Basovizza, 34149 Trieste, Italy
| |
Collapse
|
21
|
Katrusiak A. Lab in a DAC - high-pressure crystal chemistry in a diamond-anvil cell. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2019; 75:918-926. [PMID: 32830671 DOI: 10.1107/s2052520619013246] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 09/26/2019] [Indexed: 06/11/2023]
Abstract
The diamond-anvil cell (DAC) was invented 60 years ago, ushering in a new era for material sciences, extending research into the dimension of pressure. Most structural determinations and chemical research have been conducted at ambient pressure, i.e. the atmospheric pressure on Earth. However, modern experimental techniques are capable of generating pressure and temperature higher than those at the centre of Earth. Such extreme conditions can be used for obtaining unprecedented chemical compounds, but, most importantly, all fundamental phenomena can be viewed and understood from a broader perspective. This knowledge, in turn, is necessary for designing new generations of materials and applications, for example in the pharmaceutical industry or for obtaining super-hard materials. The high-pressure chambers in the DAC are already used for a considerable variety of experiments, such as chemical reactions, crystallizations, measurements of electric, dielectric and magnetic properties, transformations of biological materials as well as experiments on living tissue. Undoubtedly, more applications involving elevated pressure will follow. High-pressure methods become increasingly attractive, because they can reduce the sample volume and compress the intermolecular contacts to values unattainable by other methods, many times stronger than at low temperature. The compressed materials reveal new information about intermolecular interactions and new phases of single- and multi-component compounds can be obtained. At the same time, high-pressure techniques, and particularly those of X-ray diffraction using the DAC, have been considerably improved and many innovative developments implemented. Increasingly more equipment of in-house laboratories, as well as the instrumentation of beamlines at synchrotrons and thermal neutron sources are dedicated to high-pressure research.
Collapse
Affiliation(s)
- Andrzej Katrusiak
- Faculty of Chemistry, Adam Mickiewicz University, ul. Uniwersytetu Poznańskiego 8, Poznań, 61-614, Poland
| |
Collapse
|
22
|
Intermolecular Interactions in Functional Crystalline Materials: From Data to Knowledge. CRYSTALS 2019. [DOI: 10.3390/cryst9090478] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Intermolecular interactions of organic, inorganic, and organometallic compounds are the key to many composition–structure and structure–property networks. In this review, some of these relations and the tools developed by the Cambridge Crystallographic Data Center (CCDC) to analyze them and design solid forms with desired properties are described. The potential of studies supported by the Cambridge Structural Database (CSD)-Materials tools for investigation of dynamic processes in crystals, for analysis of biologically active, high energy, optical, (electro)conductive, and other functional crystalline materials, and for the prediction of novel solid forms (polymorphs, co-crystals, solvates) are discussed. Besides, some unusual applications, the potential for further development and limitations of the CCDC software are reported.
Collapse
|
23
|
Sahoo S, Ravindran T, Srihari V, Pandey K, Chandra S, Thirmal C, Murugavel P. Pressure induced phase transformations in diisopropylammonium bromide. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2019.03.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
24
|
Braun DE, Vickers M, Griesser UJ. Dapsone Form V: A Late Appearing Thermodynamic Polymorph of a Pharmaceutical. Mol Pharm 2019; 16:3221-3236. [PMID: 31075201 DOI: 10.1021/acs.molpharmaceut.9b00419] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Five anhydrate polymorphs (forms I-V) and the isomorphic dehydrate (Hydehy) of dapsone (4,4'-diaminodiphenyl sulfone or DDS) were prepared and characterized in an interdisciplinary experimental and computational study, elucidating the kinetic and thermodynamic stabilities, solid form interrelationships, and structural features of the known forms I-IV, the novel polymorph form V, and Hydehy. Calorimetric measurements, solubility experiments, and lattice energy calculations revealed that form V is the thermodynamically stable polymorph from absolute zero to at least 90 °C. At higher temperatures, form II, and then form I, becomes the most stable DDS solid form. The computed 0 K stability order (lattice energy calculations) was confirmed with calorimetric measurements as follows, V (most stable) > III > Hydehy > II > I > IV (least stable). The discovery of form V was complicated by the fact that the metastable but kinetically stabilized form III shows a higher nucleation and growth rate. By combining laboratory powder X-ray diffraction data and ab initio calculations, the crystal structure of form V ( P21/ c, Z' = 4) was solved, with a high energy DDS conformation allowing a denser packing and more stable intermolecular interactions, rationalizing the formation of a high Z' structure. The structures of the forms I and IV, only observed from the melt and showing distinct packing features compared to the forms II, III, and V, were derived from the computed crystal energy landscapes. Dehydration modeling of the DDS hydrate led to the Hydehy structure. This study expands our understanding about the complex crystallization behavior of pharmaceuticals and highlights the big challenge in solid form screening, especially that there is no clear end point.
Collapse
Affiliation(s)
- Doris E Braun
- Institute of Pharmacy , University of Innsbruck , Innrain 52c , 6020 Innsbruck , Austria
| | - Martin Vickers
- Department of Chemistry , University College London , 20 Gordon Street , London WC1H 0AJ , U.K
| | - Ulrich J Griesser
- Institute of Pharmacy , University of Innsbruck , Innrain 52c , 6020 Innsbruck , Austria
| |
Collapse
|
25
|
Giordano N, Afanasjevs S, Beavers CM, Hobday CL, Kamenev KV, O'Bannon EF, Ruiz-Fuertes J, Teat SJ, Valiente R, Parsons S. The Effect of Pressure on Halogen Bonding in 4-Iodobenzonitrile. Molecules 2019; 24:molecules24102018. [PMID: 31137795 PMCID: PMC6572472 DOI: 10.3390/molecules24102018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 05/20/2019] [Accepted: 05/22/2019] [Indexed: 11/16/2022] Open
Abstract
The crystal structure of 4-iodobenzonitrile, which is monoclinic (space group I2/a) under ambient conditions, contains chains of molecules linked through C≡N···I halogen-bonds. The chains interact through CH···I, CH···N and π-stacking contacts. The crystal structure remains in the same phase up to 5.0 GPa, the b axis compressing by 3.3%, and the a and c axes by 12.3 and 10.9 %. Since the chains are exactly aligned with the crystallographic b axis these data characterise the compressibility of the I···N interaction relative to the inter-chain interactions, and indicate that the halogen bond is the most robust intermolecular interaction in the structure, shortening from 3.168(4) at ambient pressure to 2.840(1) Å at 5.0 GPa. The π∙∙∙π contacts are most sensitive to pressure, and in one case the perpendicular stacking distance shortens from 3.6420(8) to 3.139(4) Å. Packing energy calculations (PIXEL) indicate that the π∙∙∙π interactions have been distorted into a destabilising region of their potentials at 5.0 GPa. The structure undergoes a transition to a triclinic ( P 1 ¯ ) phase at 5.5 GPa. Over the course of the transition, the initially colourless and transparent crystal darkens on account of formation of microscopic cracks. The resistance drops by 10% and the optical transmittance drops by almost two orders of magnitude. The I···N bond increases in length to 2.928(10) Å and become less linear [<C-I∙∙∙N = 166.2(5)°]; the energy stabilises by 2.5 kJ mol-1 and the mixed C-I/I..N stretching frequency observed by Raman spectroscopy increases from 249 to 252 cm-1. The driving force of the transition is shown to be relief of strain built-up in the π∙∙∙π interactions rather than minimisation of the molar volume. The triclinic phase persists up to 8.1 GPa.
Collapse
Affiliation(s)
- Nico Giordano
- Centre for Science at Extreme Conditions and EaStCHEM School of Chemistry, The University of Edinburgh, King's Buildings, West Mains Road, Edinburgh, Scotland EH9 3FD, UK.
- Advanced Light Source, 1 Cyclotron Road, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
| | - Sergejs Afanasjevs
- Centre for Science at Extreme Conditions and School of Engineering, The University of Edinburgh, King's Buildings, West Mains Road, Edinburgh, Scotland EH9 3FD, UK.
| | - Christine M Beavers
- Advanced Light Source, 1 Cyclotron Road, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
- Department of Earth & Planetary Sciences, University of California, Santa Cruz, 1156 High Street Santa Cruz, CA 95064, USA.
- Present address: Diamond Light Source, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Harwell Oxford, Didcot OX11 0QX, UK.
| | - Claire L Hobday
- Centre for Science at Extreme Conditions and EaStCHEM School of Chemistry, The University of Edinburgh, King's Buildings, West Mains Road, Edinburgh, Scotland EH9 3FD, UK.
| | - Konstantin V Kamenev
- Centre for Science at Extreme Conditions and School of Engineering, The University of Edinburgh, King's Buildings, West Mains Road, Edinburgh, Scotland EH9 3FD, UK.
| | - Earl F O'Bannon
- Advanced Light Source, 1 Cyclotron Road, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
- Department of Earth & Planetary Sciences, University of California, Santa Cruz, 1156 High Street Santa Cruz, CA 95064, USA.
- Present address: Physical and Life Sciences, Physics Division, Lawrence Livermore National Laboratory, Livermore, CA 94551, USA.
| | - Javier Ruiz-Fuertes
- Dpto. DCITIMAC, Facultad de Ciencias, Universidad de Cantabria, 39005 Santander, Spain.
| | - Simon J Teat
- Advanced Light Source, 1 Cyclotron Road, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
| | - Rafael Valiente
- Dpto. Física Aplicada, Facultad de Ciencias, Universidad de Cantabria-IDIVAL, 39005 Santander, Spain.
| | - Simon Parsons
- Centre for Science at Extreme Conditions and EaStCHEM School of Chemistry, The University of Edinburgh, King's Buildings, West Mains Road, Edinburgh, Scotland EH9 3FD, UK.
| |
Collapse
|
26
|
Meyer B, Barthel S, Mace A, Vannay L, Guillot B, Smit B, Corminboeuf C. DORI Reveals the Influence of Noncovalent Interactions on Covalent Bonding Patterns in Molecular Crystals Under Pressure. J Phys Chem Lett 2019; 10:1482-1488. [PMID: 30865472 PMCID: PMC6452419 DOI: 10.1021/acs.jpclett.9b00220] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The study of organic molecular crystals under high pressure provides fundamental insight into crystal packing distortions and reveals mechanisms of phase transitions and the crystallization of polymorphs. These solid-state transformations can be monitored directly by analyzing electron charge densities that are experimentally obtained at high pressure. However, restricting the analysis to the featureless electron density does not reveal the chemical bonding nature and the existence of intermolecular interactions. This shortcoming can be resolved by the use of the DORI (density overlap region indicator) descriptor, which is capable of simultaneously detecting both covalent patterns and noncovalent interactions from electron density and its derivatives. Using the biscarbonyl[14]annulene crystal under pressure as an example, we demonstrate how DORI can be exploited on experimental electron densities to reveal and monitor changes in electronic structure patterns resulting from molecular compression. A novel approach based on a flood-fill-type algorithm is proposed for analyzing the topology of the DORI isosurface. This approach avoids the arbitrary selection of DORI isovalues and provides an intuitive way to assess how compression packing affects covalent bonding in organic solids.
Collapse
Affiliation(s)
- Benjamin Meyer
- Laboratory
for Computational Molecular Design (LCMD), Institute of Chemical Sciences
and Engineering (ISIC), École Polytechnique
Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- National
Center for Computational Design and Discovery of Novel Materials (MARVEL), École Polytechnique Fédérale
de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Senja Barthel
- National
Center for Computational Design and Discovery of Novel Materials (MARVEL), École Polytechnique Fédérale
de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Laboratory
of Molecular Simulation (LSMO), Institute of Chemical Sciences and
Engineering (ISIC), École Polytechnique
Fédérale de Lausanne (EPFL Valais), CH-1951 Sion, Switzerland
| | - Amber Mace
- National
Center for Computational Design and Discovery of Novel Materials (MARVEL), École Polytechnique Fédérale
de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Laboratory
of Molecular Simulation (LSMO), Institute of Chemical Sciences and
Engineering (ISIC), École Polytechnique
Fédérale de Lausanne (EPFL Valais), CH-1951 Sion, Switzerland
- Department
of Materials and Environmental Chemistry, Stockholm University, SE-10691 Stockholm, Sweden
| | - Laurent Vannay
- Laboratory
for Computational Molecular Design (LCMD), Institute of Chemical Sciences
and Engineering (ISIC), École Polytechnique
Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Benoit Guillot
- Laboratoire
CRM2, UMR 7036, Université de Lorraine, F-54506 Vandoeuvre-lès-Nancy, France
| | - Berend Smit
- National
Center for Computational Design and Discovery of Novel Materials (MARVEL), École Polytechnique Fédérale
de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- Laboratory
of Molecular Simulation (LSMO), Institute of Chemical Sciences and
Engineering (ISIC), École Polytechnique
Fédérale de Lausanne (EPFL Valais), CH-1951 Sion, Switzerland
| | - Clémence Corminboeuf
- Laboratory
for Computational Molecular Design (LCMD), Institute of Chemical Sciences
and Engineering (ISIC), École Polytechnique
Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- National
Center for Computational Design and Discovery of Novel Materials (MARVEL), École Polytechnique Fédérale
de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
- E-mail: . Tel: +41 (0)21 693 93 57. Fax: +41 (0)21 693
97 00
| |
Collapse
|
27
|
Tsirelson VG, Stash AI, Tokatly IV. Quantum pressure focusing in solids: a reconstruction from experimental electron density. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2019; 75:201-209. [PMID: 32830745 DOI: 10.1107/s2052520619001471] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 01/25/2019] [Indexed: 06/11/2023]
Abstract
Here an approach is presented for reconstructing the distribution of electronic internal quantum pressure in the electronic continuum of solids from the experimental electron density. Using the formalism of the density functional theory, the spatial inner-crystal map of the quantum pressure is obtained. The results are visualized via the indicator of quantum pressure focusing (IQPF) which reveals the regions where the pressure is concentrated or depleted due to quantum effects. IQPF contains all quantum electron-shell structure-forming contributions resulting from kinetic, exchange and correlation effects, and presents a clear picture of the chemical bond features in crystals with different type of bonding mechanisms.
Collapse
Affiliation(s)
- Vladimir G Tsirelson
- Quantum Chemistry Department, Mendeleev University of Chemical Technology, Moscow, 125047, Russian Federation
| | - Adam I Stash
- Quantum Chemistry Department, Mendeleev University of Chemical Technology, Moscow, 125047, Russian Federation
| | - Ilya V Tokatly
- Departamento de Fisica de Materials, Universidad del Pais Vasco UPV/EHU, San Sebastian, 20018, Spain
| |
Collapse
|
28
|
A Mathematical Approach to Consider Solid Compressibility in the Compression of Pharmaceutical Powders. Pharmaceutics 2019; 11:pharmaceutics11030121. [PMID: 30875977 PMCID: PMC6470607 DOI: 10.3390/pharmaceutics11030121] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/07/2019] [Accepted: 03/09/2019] [Indexed: 11/16/2022] Open
Abstract
In-die compression analysis is an effective method for the characterization of powder compressibility. However, physically unreasonable apparent solid fractions above one or apparent in-die porosities below zero are often calculated for higher compression stresses. One important reason for this is the neglect of solid compressibility and hence the assumption of a constant solid density. In this work, the solid compressibility of four pharmaceutical powders with different deformation behaviour is characterized using mercury porosimetry. The derived bulk moduli are applied for the calculation of in-die porosities. The change of in-die porosity due to the consideration of solid compressibility is for instance up to 4% for microcrystalline cellulose at a compression stress of 400 MPa and thus cannot be neglected for the calculation of in-die porosities. However, solid compressibility and further uncertainties from, for example the measured solid density and from the displacement sensors, are difficult or only partially accessible. Therefore, a mathematic term for the calculation of physically reasonable in-die porosities is introduced. This term can be used for the extension of common mathematical models, such as the models of Heckel and of Cooper & Eaton. Additionally, an extended in-die compression function is introduced to precisely describe the entire range of in-die porosity curves and to enable the successful differentiation and quantification of the compression behaviour of the investigated pharmaceutical powders.
Collapse
|
29
|
Smith EL, Ridout J, Sellars JD, Probert MR. A structural exploration of anisole accessed through extreme crystallisation conditions. CrystEngComm 2019. [DOI: 10.1039/c9ce00870e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel high pressure polymorph of anisole has been discovered and investigated with respect to the known low temperature form.
Collapse
Affiliation(s)
- Ellie Louvain Smith
- Chemistry, School of Natural and Environmental Sciences
- Newcastle University
- Newcastle-upon-Tyne
- UK
| | - Joe Ridout
- Chemistry, School of Natural and Environmental Sciences
- Newcastle University
- Newcastle-upon-Tyne
- UK
| | | | - Michael Richard Probert
- Chemistry, School of Natural and Environmental Sciences
- Newcastle University
- Newcastle-upon-Tyne
- UK
| |
Collapse
|
30
|
Gaydamaka AA, Arkhipov SG, Zakharov BA, Seryotkin YV, Boldyreva EV. Effect of pressure on slit channels in guanine sodium salt hydrate: a link to nucleobase intermolecular interactions. CrystEngComm 2019. [DOI: 10.1039/c9ce00476a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The crystal structure of a hydrate of the sodium salt of guanine (2Na+·C5H3N5O2−·7H2O) was studied at high pressure by single-crystal X-ray diffraction and Raman spectroscopy.
Collapse
Affiliation(s)
| | - Sergey G. Arkhipov
- Novosibirsk State University
- Novosibirsk
- 630090 Russia
- Boreskov Institute of Catalysis SB RAS
- Novosibirsk
| | - Boris A. Zakharov
- Novosibirsk State University
- Novosibirsk
- 630090 Russia
- Boreskov Institute of Catalysis SB RAS
- Novosibirsk
| | - Yurii V. Seryotkin
- Novosibirsk State University
- Novosibirsk
- 630090 Russia
- Sobolev Institute of Geology and Mineralogy
- Novosibirsk
| | - Elena V. Boldyreva
- Novosibirsk State University
- Novosibirsk
- 630090 Russia
- Boreskov Institute of Catalysis SB RAS
- Novosibirsk
| |
Collapse
|
31
|
Zakharov BA, Boldyreva EV. High pressure: a complementary tool for probing solid-state processes. CrystEngComm 2019. [DOI: 10.1039/c8ce01391h] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
High pressure offers insight into the mechanisms of a wide range of solid-state phenomena occurring under atmospheric pressure conditions.
Collapse
Affiliation(s)
- Boris A. Zakharov
- Boreskov Institute of Catalysis
- Siberian Branch of the Russian Academy of Sciences
- Novosibirsk
- Russian Federation
- Novosibirsk State University
| | - Elena V. Boldyreva
- Boreskov Institute of Catalysis
- Siberian Branch of the Russian Academy of Sciences
- Novosibirsk
- Russian Federation
- Novosibirsk State University
| |
Collapse
|
32
|
Fu C, Dai C, Du B, Li P, Lei L, Hu F, Jiang Z. Raman spectroscopic study of orthorhombic l -cysteine under pressure up to 20.2 GPa. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.05.061] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
33
|
Chakraborty S, Joseph S, Desiraju GR. Probing the Crystal Structure Landscape by Doping: 4-Bromo, 4-Chloro, and 4-Methylcinnamic Acids. Angew Chem Int Ed Engl 2018; 57:9279-9283. [PMID: 29893027 DOI: 10.1002/anie.201801649] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 04/09/2018] [Indexed: 11/08/2022]
Abstract
Accessing the data points in the crystal structure landscape of a molecule is a challenging task, either experimentally or computationally. We have charted the crystal structure landscape of 4-bromocinnamic acid (4BCA) experimentally and computationally: experimental doping is achieved with 4-methylcinnamic acid (4MCA) to obtain new crystal structures; computational doping is performed with 4-chlorocinnamic acid (4CCA) as a model system, because of the difficulties associated in parameterizing the Br atom. The landscape of 4CCA is explored experimentally in turn, also by doping it with 4MCA, and is found to bear a close resemblance to the landscape of 4BCA, justifying the ready miscibility of these two halogenated cinnamic acids to form solid solutions without any change in crystal structure. In effect, 4MCA, 4CCA and 4BCA form a commutable group of crystal structures, which may be realized experimentally or computationally, and constitute the landscape. Unlike the results obtained by Kitaigorodskii, all but two of the multiple solid solutions obtained in the methyl-doping experiments take structures that are different from the hitherto observed crystal forms of the parent compounds. Even granted that the latter might be inherently polymorphic, this unusual observation provokes the suggestion that solid solution formation may be used to probe the crystal structure landscape. The influence of π⋅⋅⋅π interactions, weak hydrogen bonds and halogen bonds in directing the formation of these new structures is also seen.
Collapse
Affiliation(s)
- Shaunak Chakraborty
- Solid State and Structural Chemistry Unit; Indian Institute of Science; Bangalore 560 012 India
| | - Sumy Joseph
- Solid State and Structural Chemistry Unit; Indian Institute of Science; Bangalore 560 012 India
| | - Gautam R. Desiraju
- Solid State and Structural Chemistry Unit; Indian Institute of Science; Bangalore 560 012 India
| |
Collapse
|
34
|
Chakraborty S, Joseph S, Desiraju GR. Probing the Crystal Structure Landscape by Doping: 4-Bromo, 4-Chloro, and 4-Methylcinnamic Acids. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801649] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shaunak Chakraborty
- Solid State and Structural Chemistry Unit; Indian Institute of Science; Bangalore 560 012 India
| | - Sumy Joseph
- Solid State and Structural Chemistry Unit; Indian Institute of Science; Bangalore 560 012 India
| | - Gautam R. Desiraju
- Solid State and Structural Chemistry Unit; Indian Institute of Science; Bangalore 560 012 India
| |
Collapse
|
35
|
Sobczak S, Drożdż W, Lampronti GI, Belenguer AM, Katrusiak A, Stefankiewicz AR. Dynamic Covalent Chemistry under High-Pressure:A New Route to Disulfide Metathesis. Chemistry 2018; 24:8769-8773. [DOI: 10.1002/chem.201801740] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Szymon Sobczak
- Faculty of Chemistry; Adam Mickiewicz University; Umultowska 89b 61-614 Poznań Poland
| | - Wojciech Drożdż
- Faculty of Chemistry; Adam Mickiewicz University; Umultowska 89b 61-614 Poznań Poland
- Centre for Advanced Technologies; Adam Mickiewicz University; Umultowska 89c 61-614 Poznań Poland
| | - Giulio I. Lampronti
- Department of Earth Sciences; University of Cambridge; Downing St Cambridge CB2 3EQ UK
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Ana M. Belenguer
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Andrzej Katrusiak
- Faculty of Chemistry; Adam Mickiewicz University; Umultowska 89b 61-614 Poznań Poland
| | - Artur R. Stefankiewicz
- Faculty of Chemistry; Adam Mickiewicz University; Umultowska 89b 61-614 Poznań Poland
- Centre for Advanced Technologies; Adam Mickiewicz University; Umultowska 89c 61-614 Poznań Poland
| |
Collapse
|
36
|
Zakharov BA, Gal Z, Cruickshank D, Boldyreva EV. Studying weak inter-actions in crystals at high pressures: when hardware matters. Acta Crystallogr E Crystallogr Commun 2018; 74:613-619. [PMID: 29850077 PMCID: PMC5947472 DOI: 10.1107/s205698901800470x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 03/22/2018] [Indexed: 11/10/2022]
Abstract
The quality of structural models for 1,2,4,5-tetra-bromo-benzene (TBB), C6H2Br4, based on data collected from a single crystal in a diamond anvil cell at 0.4 GPa in situ using two different diffractometers belonging to different generations have been compared, together with the effects of applying different data-processing strategies.
Collapse
Affiliation(s)
- Boris A. Zakharov
- Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Kutateladze Str. 18, Novosibirsk, 630128, Russian Federation
- Novosibirsk State University, Pirogova Str. 2, Novosibirsk, 630090, Russian Federation
| | - Zoltan Gal
- Rigaku Oxford Diffraction, Monument Park, Chalgrove, OX44 7RW, England
| | | | - Elena V. Boldyreva
- Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, Kutateladze Str. 18, Novosibirsk, 630128, Russian Federation
- Novosibirsk State University, Pirogova Str. 2, Novosibirsk, 630090, Russian Federation
| |
Collapse
|
37
|
Shinozaki A, Komatsu K, Kagi H, Fujimoto C, Machida S, Sano-Furukawa A, Hattori T. Behavior of intermolecular interactions in α-glycine under high pressure. J Chem Phys 2018; 148:044507. [PMID: 29390805 DOI: 10.1063/1.5009980] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Pressure-response on the crystal structure of deuterated α-glycine was investigated at room temperature, using powder and single-crystal X-ray diffraction, and powder neutron diffraction measurements under high pressure. No phase change was observed up to 8.7 GPa, although anisotropy of the lattice compressibility was found. No significant changes in the compressibility and the intramolecular distance between non-deuterated α-glycine and deuterated α-glycine were observed. Neutron diffraction measurements indicated the distance of the intermolecular D⋯O bond along with the c-axis increased with compression up to 6.4 GPa. The distance of another D⋯O bond along with the a-axis decreased with increasing pressure and became the shortest intermolecular hydrogen bond above 3 GPa. In contrast, the lengths of the bifurcated N-D⋯O and C-D⋯O hydrogen bonds, which are formed between the layers of the α-glycine molecules along the b-axis, decreased significantly with increasing pressure. The decrease of the intermolecular distances resulted in the largest compressibility of the b-axis, compared to the other two axes. The Hirshfeld analysis suggested that the reduction of the void region size, rather than shrinkage of the strong N-D⋯O hydrogen bonds, occurred with compression.
Collapse
Affiliation(s)
- Ayako Shinozaki
- Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Kazuki Komatsu
- Geochemical Research Center, Graduate School of Science, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
| | - Hiroyuki Kagi
- Geochemical Research Center, Graduate School of Science, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
| | - Chikako Fujimoto
- Geochemical Research Center, Graduate School of Science, The University of Tokyo, Hongo, Tokyo 113-0033, Japan
| | - Shinichi Machida
- CROSS, Neutron Science and Technology Center, IQBRC Building, 162-1 Shirakata, Tokai, Ibaraki 319-1106, Japan
| | - Asami Sano-Furukawa
- J-PARC Center, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai, Ibaraki 319-1195, Japan
| | - Takanori Hattori
- J-PARC Center, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai, Ibaraki 319-1195, Japan
| |
Collapse
|
38
|
Bujak M, Podsiadło M, Katrusiak A. Loose crystals engineered by mismatched halogen bonds in hexachloroethane. CrystEngComm 2018. [DOI: 10.1039/c7ce01980g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The shortest intermolecular contacts in the engineered loose crystal of hexachloroethane are longer than the sum of van der Waals radii, reached only at the pressure of 1.2 GPa.
Collapse
Affiliation(s)
- Maciej Bujak
- Faculty of Chemistry
- University of Opole
- 45-052 Opole
- Poland
| | - Marcin Podsiadło
- Faculty of Chemistry
- Adam Mickiewicz University
- 61-614 Poznań
- Poland
| | | |
Collapse
|
39
|
Bajaj N, Bhatt H, Pandey KK, Poswal HK, Arya A, Ghosh PS, Garg N, Deo MN. Phase transition in metal–organic complex trans-PtCl2(PEt3)2 under pressure: insights into the molecular and crystal structure. CrystEngComm 2018. [DOI: 10.1039/c8ce00433a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecular reorientations result in structural phase transition in trans-PtCl2(PEt3)2 under pressure, leading to a hydrogen bond assisted supramolecular architecture.
Collapse
Affiliation(s)
- Naini Bajaj
- Homi Bhabha National Institute
- Bhabha Atomic Research Centre
- Mumbai
- India 400085
- High Pressure & Synchrotron Radiation Physics Division
| | - Himal Bhatt
- High Pressure & Synchrotron Radiation Physics Division
- Bhabha Atomic Research Centre
- Mumbai
- India 400085
| | - K. K. Pandey
- High Pressure & Synchrotron Radiation Physics Division
- Bhabha Atomic Research Centre
- Mumbai
- India 400085
| | - H. K. Poswal
- High Pressure & Synchrotron Radiation Physics Division
- Bhabha Atomic Research Centre
- Mumbai
- India 400085
| | - A. Arya
- Materials Science Division
- Bhabha Atomic Research Centre
- Mumbai
- India 400085
| | - P. S. Ghosh
- Materials Science Division
- Bhabha Atomic Research Centre
- Mumbai
- India 400085
| | - N. Garg
- High Pressure & Synchrotron Radiation Physics Division
- Bhabha Atomic Research Centre
- Mumbai
- India 400085
| | - M. N. Deo
- High Pressure & Synchrotron Radiation Physics Division
- Bhabha Atomic Research Centre
- Mumbai
- India 400085
| |
Collapse
|
40
|
|
41
|
Casati N, Genoni A, Meyer B, Krawczuk A, Macchi P. Exploring charge density analysis in crystals at high pressure: data collection, data analysis and advanced modelling. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS 2017; 73:584-597. [DOI: 10.1107/s2052520617008356] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 06/06/2017] [Indexed: 11/10/2022]
Abstract
The possibility to determine electron-density distribution in crystals has been an enormous breakthrough, stimulated by a favourable combination of equipment for X-ray and neutron diffraction at low temperature, by the development of simplified, though accurate, electron-density models refined from the experimental data and by the progress in charge density analysis often in combination with theoretical work. Many years after the first successful charge density determination and analysis, scientists face new challenges, for example: (i) determination of the finer details of the electron-density distribution in the atomic cores, (ii) simultaneous refinement of electron charge and spin density or (iii) measuring crystals under perturbation. In this context, the possibility of obtaining experimental charge density at high pressure has recently been demonstrated [Casatiet al.(2016).Nat. Commun.7, 10901]. This paper reports on the necessities and pitfalls of this new challenge, focusing on the speciessyn-1,6:8,13-biscarbonyl[14]annulene. The experimental requirements, the expected data quality and data corrections are discussed in detail, including warnings about possible shortcomings. At the same time, new modelling techniques are proposed, which could enable specific information to be extracted, from the limited and less accurate observations, like the degree of localization of double bonds, which is fundamental to the scientific case under examination.
Collapse
|
42
|
Braun DE, Griesser UJ. Prediction and experimental validation of solid solutions and isopolymorphs of cytosine/5-flucytosine. CrystEngComm 2017; 19:3566-3572. [PMID: 30405321 PMCID: PMC6218006 DOI: 10.1039/c7ce00939a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
A computational search for polymorphs of cytosine, 5-flucytosine and a 1 : 1 mixture of the two substances not only rationalised the preferred packing arrangements but also enabled the finding and characterisation of cytosine/5-flucytosine solid solutions. The structures of the new solid forms were determined by combining laboratory powder X-ray diffraction data and computational modelling.
Collapse
Affiliation(s)
| | - U. J. Griesser
- Institute of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| |
Collapse
|
43
|
Abbas N, Oswald IDH, Pulham CR. Accessing Mefenamic Acid Form II through High-Pressure Recrystallisation. Pharmaceutics 2017; 9:pharmaceutics9020016. [PMID: 28509850 PMCID: PMC5489933 DOI: 10.3390/pharmaceutics9020016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 05/04/2017] [Accepted: 05/10/2017] [Indexed: 11/16/2022] Open
Abstract
High-pressure crystallisation has been successfully used as an alternative technique to prepare Form II of a non-steroidal anti-inflammatory drug, mefenamic acid (MA). A single crystal of Form II, denoted as high-pressure Form II, was grown at 0.3 GPa from an ethanolic solution by using a diamond anvil cell. A comparison of the crystal structures shows that the efficient packing of molecules in Form II was enabled by the structural flexibility of MA molecules. Compression studies performed on a single crystal of Form I resulted in a 14% decrease of unit cell volume up to 2.5 GPa. No phase transition was observed up to this pressure. A reconstructive phase transition is required to induce conformational changes in the structure, which was confirmed by the results of crystallisation at high pressure.
Collapse
Affiliation(s)
- Nasir Abbas
- College of Pharmacy, University of the Punjab, Lahore 54000, Pakistan.
| | - Iain D H Oswald
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, UK.
| | - Colin R Pulham
- School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, UK.
| |
Collapse
|
44
|
Fedorov AY, Rychkov DA, Losev EA, Zakharov BA, Stare J, Boldyreva EV. Effect of pressure on two polymorphs of tolazamide: why no interconversion? CrystEngComm 2017. [DOI: 10.1039/c6ce02527g] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
45
|
Aguirrechu-Comerón A, Hernández-Molina R, Rodríguez-Hernández P, Muñoz A, Rodríguez-Mendoza UR, Lavín V, Angel RJ, Gonzalez-Platas J. Experimental and ab Initio Study of Catena(bis(μ2-iodo)-6-methylquinoline-copper(I)) under Pressure: Synthesis, Crystal Structure, Electronic, and Luminescence Properties. Inorg Chem 2016; 55:7476-84. [DOI: 10.1021/acs.inorgchem.6b00796] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Amagoia Aguirrechu-Comerón
- Departamento de
Física, Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez
s/n, La Laguna, Tenerife E-38204, Spain
| | - Rita Hernández-Molina
- Departamento
de Química Inorgánica, Universidad de La Laguna, Avda. Astrofísico
Fco. Sánchez s/n, La Laguna, Tenerife E-38204, Spain
- Instituto Universitario de Biorgánica Antonio González, Avda.
Astrofísico Fco. Sánchez s/n, La Laguna, Tenerife E-38204, Spain
| | - Plácida Rodríguez-Hernández
- Departamento de
Física, Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez
s/n, La Laguna, Tenerife E-38204, Spain
- Instituto de Materiales y Nanotecnología
(IMN) and MALTA Consolider Team, Universidad de La Laguna, Avda. Astrofísico
Fco. Sánchez s/n, La Laguna, Tenerife E-38204, Spain
| | - Alfonso Muñoz
- Departamento de
Física, Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez
s/n, La Laguna, Tenerife E-38204, Spain
- Instituto de Materiales y Nanotecnología
(IMN) and MALTA Consolider Team, Universidad de La Laguna, Avda. Astrofísico
Fco. Sánchez s/n, La Laguna, Tenerife E-38204, Spain
| | - Ulises R. Rodríguez-Mendoza
- Departamento de
Física, Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez
s/n, La Laguna, Tenerife E-38204, Spain
- Instituto de Materiales y Nanotecnología
(IMN) and MALTA Consolider Team, Universidad de La Laguna, Avda. Astrofísico
Fco. Sánchez s/n, La Laguna, Tenerife E-38204, Spain
| | - Vı́ctor Lavín
- Departamento de
Física, Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez
s/n, La Laguna, Tenerife E-38204, Spain
- Instituto Universitario de Estudios Avanzados en Física
Atómica, Molecular y Fotónica (IUDEA), and MALTA Consolider
Team, Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez
s/n, La Laguna, Tenerife E-38204, Spain
| | - Ross J. Angel
- Dipartimento
di Geoscienze, Università degli Studi di Padova, Via G. Gradenigo
6, Padova I-35131, Italy
| | - Javier Gonzalez-Platas
- Departamento de
Física, Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez
s/n, La Laguna, Tenerife E-38204, Spain
- Servicio de Difracción de Rayos
X (SIDIX), Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez
s/n, La Laguna, Tenerife E-38204, Spain
| |
Collapse
|
46
|
Rychkov DA, Hunter S, Kovalskii VY, Lomzov AA, Pulham CR, Boldyreva EV. Towards an understanding of crystallization from solution. DFT studies of multi-component serotonin crystals. COMPUT THEOR CHEM 2016. [DOI: 10.1016/j.comptc.2016.04.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
47
|
Braun DE, Oberacher H, Arnhard K, Orlova M, Griesser UJ. 4-Aminoquinaldine monohydrate polymorphism: Prediction and impurity aided discovery of a difficult to access stable form. CrystEngComm 2016; 18:4053-4067. [PMID: 28649176 PMCID: PMC5482396 DOI: 10.1039/c5ce01758k] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Crystal structure prediction studies indicated the existence of an unknown high density monohydrate structure (Hy1B°) as global energy minimum for 4-aminoquinaldine (4-AQ). We thus performed an interdisciplinary experimental and computational study elucidating the crystal structures, solid form inter-relationships, kinetic and thermodynamic stabilities of the stable anhydrate (AH I°), the kinetic monohydrate (Hy1A ) and this novel monohydrate polymorph (Hy1B°) of 4-AQ. The crystal structure of Hy1B° was determined by combining laboratory powder X-ray diffraction data and ab initio calculations. Dehydration studies with differential scanning calorimetry and solubility measurements confirmed the result of the lattice energy calculations, which identified Hy1B° as the thermodynamically most stable hydrate form. At 25 °C the equilibrium of the 4-AQ hydrate/anhydrate system was observed at an aw (water activity) of 0.14. The finding of Hy1B° was complicated by the fact that the metastable but kinetically stable Hy1A shows a higher nucleation and growth rate. The presence of an impurity in an available 4-AQ sample facilitated the nucleation of Hy1B°, whose crystallisation is favored under hydrothermal conditions. The value of combining experimental with theoretical studies in hydrate screening and characterisation, as well as the reasons for hydrate formation in 4-AQ, are discussed.
Collapse
Affiliation(s)
- Doris E. Braun
- Institute of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Herbert Oberacher
- Institute of Legal Medicine, Innsbruck Medical University, Muellerstr. 44, 6020 Innsbruck, Austria
| | - Kathrin Arnhard
- Institute of Legal Medicine, Innsbruck Medical University, Muellerstr. 44, 6020 Innsbruck, Austria
| | - Maria Orlova
- Institute of Mineralogy and Petrography, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria
| | - Ulrich J. Griesser
- Institute of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| |
Collapse
|
48
|
Knaapila M, Guha S. Blue emitting organic semiconductors under high pressure: status and outlook. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2016; 79:066601. [PMID: 27116082 DOI: 10.1088/0034-4885/79/6/066601] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This review describes essential optical and emerging structural experiments that use high GPa range hydrostatic pressure to probe physical phenomena in blue-emitting organic semiconductors including π-conjugated polyfluorene and related compounds. The work emphasizes molecular structure and intermolecular self-organization that typically determine transport and optical emission in π-conjugated oligomers and polymers. In this context, hydrostatic pressure through diamond anvil cells has proven to be an elegant tool to control structure and interactions without chemical intervention. This has been highlighted by high pressure optical spectroscopy whilst analogous x-ray diffraction experiments remain less frequent. By focusing on a class of blue-emitting π-conjugated polymers, polyfluorenes, this article reviews optical spectroscopic studies under hydrostatic pressure, addressing the impact of molecular and intermolecular interactions on optical excitations, electron-phonon interaction, and changes in backbone conformations. This picture is connected to the optical high pressure studies of other π-conjugated systems and emerging x-ray scattering experiments from polyfluorenes which provides a structure-property map of pressure-driven intra- and interchain interactions. Key obstacles to obtain further advances are identified and experimental methods to resolve them are suggested.
Collapse
Affiliation(s)
- Matti Knaapila
- Department of Physics, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | | |
Collapse
|
49
|
Casati N, Kleppe A, Jephcoat AP, Macchi P. Putting pressure on aromaticity along with in situ experimental electron density of a molecular crystal. Nat Commun 2016; 7:10901. [PMID: 26979750 PMCID: PMC4799374 DOI: 10.1038/ncomms10901] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 02/01/2016] [Indexed: 11/12/2022] Open
Abstract
When pressure is applied, the molecules inside a crystal undergo significant changes of their stereoelectronic properties. The most interesting are those enhancing the reactivity of systems that would be otherwise rather inert at ambient conditions. Before a reaction can occur, however, a molecule must be activated, which means destabilized. In aromatic compounds, molecular stability originates from the resonance between two electronic configurations. Here we show how the resonance energy can be decreased in molecular crystals on application of pressure. The focus is on syn-1,6:8,13-Biscarbonyl[14]annulene, an aromatic compound at ambient conditions that gradually localizes one of the resonant configurations on compression. This phenomenon is evident from the molecular geometries measured at several pressures and from the experimentally determined electron density distribution at 7.7 GPa; the observations presented in this work are validated by periodic DFT calculations. Aromatic compounds display enhanced stability due to delocalized π-bonding. Here, the authors study an aromatic, molecular crystal under pressure using x-ray diffraction and calculations, and observe a reduction in π-bond delocalization under increasing pressure.
Collapse
Affiliation(s)
- Nicola Casati
- Paul Scherrer Institute, WLGA/229, CH-5232 Villigen, Switzerland
| | - Annette Kleppe
- Diamond light source Ltd., Harwell Science and innovation Campus, Didcot OX110DE, UK
| | - Andrew P Jephcoat
- Institute for Study of the Earth's interior, Okayama University, Yamada 827, Misasa, Tottori 682-0193, Japan
| | - Piero Macchi
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern CH-3012, Switzerland
| |
Collapse
|
50
|
Olejniczak A, Podsiadło M, Katrusiak A. High pressure used for producing a new solvate of 1,4-diazabicyclo[2.2.2]octane hydroiodide. NEW J CHEM 2016. [DOI: 10.1039/c5nj01654a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Above 3.1 GPa, the solvate with water and methanol is formed, which cannot be obtained at normal pressure.
Collapse
Affiliation(s)
- A. Olejniczak
- Faculty of Chemistry
- Adam Mickiewicz University
- 61-614 Poznań
- Poland
| | - M. Podsiadło
- Faculty of Chemistry
- Adam Mickiewicz University
- 61-614 Poznań
- Poland
| | - A. Katrusiak
- Faculty of Chemistry
- Adam Mickiewicz University
- 61-614 Poznań
- Poland
| |
Collapse
|