1
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Kumagai H, Kawata S, Ogihara N. Crystal structures of 1,1'-bis-(carb-oxy-meth-yl)-4,4'-bipyridinium derivatives. Acta Crystallogr E Crystallogr Commun 2024; 80:695-698. [PMID: 38974157 PMCID: PMC11223691 DOI: 10.1107/s2056989024005127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Accepted: 05/30/2024] [Indexed: 07/09/2024]
Abstract
The crystal structures of 2-[1'-(carb-oxy-meth-yl)-4,4'-bi-pyridine-1,1'-diium-1-yl]acetate tetra-fluoro-borate, C14H13N2O4 +·BF4 - or (Hbcbpy)(BF4), and neutral 1,1'-bis-(carboxyl-atometh-yl)-4,4'-bi-pyridine-1,1'-diium (bcbpy), C14H20N2O8, are reported. The asymmetric unit of the (Hbcbpy)(BF4) consists of a Hbcbpy+ monocation, a BF4 - anion, and one-half of a water mol-ecule. The BF4 - anion is disordered. Two pyridinium rings of the Hbcbpy+ monocation are twisted at a torsion angle of 30.3 (2)° with respect to each other. The Hbcbpy monocation contains a carb-oxy-lic acid group and a deprotonated carboxyl-ate group. Both groups exhibit both a long and a short C-O bond. The cations are linked by inter-molecular hydrogen-bonding inter-actions between the carb-oxy-lic acid and the deprotonated carboxyl-ate group to give one-dimensional zigzag chains. The asymmetric unit of the neutral bcbpy consists of one-half of the bcbpy and two water mol-ecules. In contrast to the Hbcbpy+ monocation, the neutral bcbpy mol-ecule contains two pyridinium rings that are coplanar with each other and a carboxyl-ate group with similar C-O bond lengths. The mol-ecules are connected by inter-molecular hydrogen-bonding inter-actions between water mol-ecules and carboxyl-ate groups, forming a three-dimensional hydrogen-bonding network.
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2
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Ali SM, Sk S, Sengupta A, Santra S, Barman S, Sepay N, Molla MR. Anion-assisted supramolecular polymerization of luminescent organic π-conjugated chromophores in a moderately polar solvent: tunable nanostructures and their corresponding effects on electronic properties. NANOSCALE 2023; 15:14866-14876. [PMID: 37646513 DOI: 10.1039/d3nr04090a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Supramolecular polymers of π-conjugated organic chromophores have emerged as promising candidates in organic electronics because of their dynamic and highly ordered molecular organization. Herein, we demonstrate the formation of luminescent, highly conducting supramolecular polymers of a functionalized naphthalimide π-chromophore-based organic semiconductor in a moderately polar organic solvent (tetrahydrofuran) by overcoming solute-solvent H-bonding via assistance from fluoride anions. The polymerization is exclusively guided by the synergistic effects of cascade H-bonding (F-⋯H-N- of primary amines, followed by -CO⋯H-N- of amides), π-π stacking and hydrophobic interactions. An increasing molar equivalent of anions leads to a morphology transition from 1D nanowires to 2D nanosheets via nanotubes and nanorings, but above a particular threshold of the same anion, depolymerization-mediated disruption of long-range order and formation of non-luminescent spherical particles was observed. Such significant impacts of anions in supramolecular polymerization-depolymerization were utilized in modulating the electronic properties of this naphthalimide-based organic semiconductor.
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Affiliation(s)
- Sk Mursed Ali
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata, West Bengal-700009, India.
| | - Sujauddin Sk
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata, West Bengal-700009, India.
| | - Ankita Sengupta
- Department of Electronic Science, University of Calcutta, 92 A. P. C. Road, Kolkata, West Bengal-700009, India
| | - Subrata Santra
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata, West Bengal-700009, India.
| | - Souvik Barman
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata, West Bengal-700009, India.
| | - Nayim Sepay
- Department of Chemistry, Lady Brabourne College, P-1/2, Suhrawardy Ave, Kolkata, West Bengal-700017, India
| | - Mijanur Rahaman Molla
- Department of Chemistry, University of Calcutta, 92 A. P. C. Road, Kolkata, West Bengal-700009, India.
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3
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De S, Asthana D, Thirmal C, Keshri SK, Ghosh RK, Hundal G, Kumar R, Singh S, Chatterjee R, Mukhopadhyay P. A folded π-system with supramolecularly oriented dipoles: single-component piezoelectric relaxor with NLO activity. Chem Sci 2023; 14:2547-2552. [PMID: 36908941 PMCID: PMC9993858 DOI: 10.1039/d2sc06141d] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/29/2022] [Indexed: 01/05/2023] Open
Abstract
Organic molecules with an active dipole moment have a natural propensity to align in an antiparallel fashion in the solid state, resulting in zero macroscopic polarization. This primary limitation makes the material unresponsive to switching with electric fields, mechanical forces, and to intense laser light. A single-component organic material that bestows macroscopic dipole-driven electro-mechanical and optical functions, e.g., piezoelectric, ferroelectric and nonlinear optical (NLO) activity, is unprecedented due to the design challenges imparted by crystal symmetry and dipole orientations. Herein we report a crystalline organic material that self-assembles with a polar order (P 1), and is endowed with a high piezoelectric coefficient (d 33-47 pm V-1), as well as ferroelectric and Debye-type relaxor properties. In addition, it shows second harmonic generation (SHG) activity, which is more than five times that of the benchmark potassium dihydrogen phosphate. Piezoelectric force microscopy (PFM) images validated electro-mechanical deformations. Piezoresponse force spectroscopy (PFS) studies confirmed a signature butterfly-like amplitude and a phase loop. To the best of our knowledge, this is the first report of a folded supramolecular π-system that manifests unidirectionally oriented dipoles and exhibits piezoelectricity, ferroelectricity, and has excellent ability to generate second harmonic light. These findings can herald new design possibilities based on folded architectures to explore opto-, electro- and mechano-responsive multifaceted functions.
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Affiliation(s)
- Soumi De
- School of Physical Sciences, Jawaharlal Nehru University New Delhi - 110067 India
| | - Deepak Asthana
- Department of Chemistry, Ashoka University Sonipat Haryana 131029 India
| | - Chinthakuntla Thirmal
- Department of Physics, Indian Institute of Technology Delhi New Delhi - 110016 India.,VNR Vignana Jyothi Institute of Engineering and Technology Hyderabad Telangana 500 090 India
| | - Sudhir K Keshri
- School of Physical Sciences, Jawaharlal Nehru University New Delhi - 110067 India
| | - Ram Krishna Ghosh
- Department of Electronics & Communications Engineering, Indraprastha Institute of Information Technology Delhi New Delhi 110020 India
| | - Geeta Hundal
- Department of Chemistry, Guru Nanak Dev University Amritsar Punjab-143005 India
| | - Raju Kumar
- Special Centre for Nanoscience, Jawaharlal Nehru University New Delhi - 110067 India
| | - Satyendra Singh
- Special Centre for Nanoscience, Jawaharlal Nehru University New Delhi - 110067 India
| | - Ratnamala Chatterjee
- Department of Physics, Indian Institute of Technology Delhi New Delhi - 110016 India
| | - Pritam Mukhopadhyay
- School of Physical Sciences, Jawaharlal Nehru University New Delhi - 110067 India
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4
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Yan GY, Qian ZJ, Rouhani F, Kaviani H, Hashemi L, Bigdeli F, Gao XM, Qiao LP, Liu KG, Morsali A, Liu T. Engineered design of a new HOF by simultaneous monitoring of reaction environment conductivity. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2021.122834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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5
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Mukherjee A, Barman S, Ghosh A, Chakraborty S, Datta A, Datta A, Ghosh S. Stable room temperature ferroelectricity in hydrogen-bonded supramolecular assemblies of ambipolar π-systems. Chem Sci 2022; 13:781-788. [PMID: 35173943 PMCID: PMC8768847 DOI: 10.1039/d1sc04617a] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 12/17/2021] [Indexed: 12/14/2022] Open
Abstract
This article reports H-bonding driven supramolecular polymerization of naphthalimide (A)-thiophene (D)-naphthalimide (A) (AD n A, n = 1-4) conjugated ambipolar π-systems and its remarkable impact on room temperature ferroelectricity. Electrochemical studies confirm the ambipolar nature of these AD n A molecules with the HOMO-LUMO gap varying between 2.05 and 2.29 eV. Electron density mapping from ESP calculations reveals intra-molecular charge separation as typically observed in ambipolar systems. In the aggregated state, AD1A and AD2A exhibit bathochromically shifted absorption bands while AD3A and AD4A show typical H-aggregation with a hypsochromic shift. Polarization vs. electric field (P-E) measurements reveal stable room temperature ferroelectricity for these supramolecular assemblies, most prominent for the AD2A system, with a Curie temperature (T c) ≈ 361 K and saturation polarization (P s) of ∼2 μC cm-2 at a rather low coercive field of ∼2 kV cm-1. Control molecules, lacking either the ambipolar chromophore or the amide functionality, do not show any ferroelectricity, vindicating the present molecular and supramolecular design. Computational studies enable structural optimization of the stacked oligomer(s) of AD2A molecules and reveal a significant increase in the macro-dipole moment (in the range of 10-12 Debye) going from the monomer to the oligomer(s), which provides the rationale for the origin of ferroelectricity in these supramolecular polymers.
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Affiliation(s)
- Anurag Mukherjee
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja SC Mallick Road, Jadavpur Kolkata 700032 India
| | - Shubhankar Barman
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja SC Mallick Road, Jadavpur Kolkata 700032 India
| | - Anupam Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja SC Mallick Road, Jadavpur Kolkata 700032 India
| | - Saptarshi Chakraborty
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja SC Mallick Road, Jadavpur Kolkata 700032 India
| | - Ayan Datta
- School of Chemical Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja SC Mallick Road, Jadavpur Kolkata 700032 India
| | - Anuja Datta
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja SC Mallick Road, Jadavpur Kolkata 700032 India
| | - Suhrit Ghosh
- School of Applied and Interdisciplinary Sciences, Indian Association for the Cultivation of Science 2A and 2B Raja SC Mallick Road, Jadavpur Kolkata 700032 India
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6
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Hettegger H, Hofinger A, Rosenau T. Strain-induced Reactivity Effects in the Reaction of 2,5-Dihydroxy-[1,4]- benzoquinone with Diamines. CURR ORG CHEM 2021. [DOI: 10.2174/1385272824666201209112938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The regioselectivity of the reaction of 2,5-dihydroxy-[1,4]-benzoquinone (DHBQ)
with diamines could not be explained satisfactorily so far. In general, the reaction products
can be derived from the tautomeric ortho-quinoid structure of a hypothetical 4,5-dihydroxy-
[1,2]-benzoquinone. However, both aromatic and aliphatic 1,2-diamines form phenazines, in
some cases, formally by diimine formation on the quinoid carbonyl groups, and in other
cases, the corresponding 1,2-diamino-[1,2]-benzoquinones by nucleophilic substitution of the
OH groups; the regioselectivity apparently does not follow any discernible pattern. The reactivity
was now explained by an adapted theory of strain-induced bond localization (SIBL).
Here, the preservation of the "natural" geometry of the two quinoid C–C double bonds
(C3=C4 and C5=C6) as well as the N–N distance of the co-reacting diamine are crucial. A
decrease of the annulation angle sum (N–C4–C5 + C4–C5–N) is tolerated well and the 4,5-diamino-ortho-quinones,
having relatively short N–N spacings, are formed. An increase in the angular sum is energetically unfavorable, so that
diamines with a larger N–N distance afford the corresponding ortho-quinone imines. Thus, for the reaction of DHBQ
with diamines, exact predictions of the regioselectivity and the resulting product structure can be made on the basis of
simple computations of bond spacings and product geometries.
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Affiliation(s)
- Hubert Hettegger
- University of Natural Resources and Life Sciences, Vienna (BOKU), Institute of Chemistry of Renewable Resources, Muthgasse 18, A-1190 Vienna, Austria
| | - Andreas Hofinger
- University of Natural Resources and Life Sciences, Vienna (BOKU), Institute of Organic Chemistry, Muthgasse 18, A-1190 Vienna, Austria
| | - Thomas Rosenau
- University of Natural Resources and Life Sciences, Vienna (BOKU), Institute of Chemistry of Renewable Resources, Muthgasse 18, A-1190 Vienna, Austria
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7
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Li S, Takahashi K, Hisaki I, Kokado K, Nakamura T. One-dimensional DABCO hydrogen-bonding chain in a hexagonal channel of magnetic [Ni(dmit) 2]. Dalton Trans 2020; 49:16772-16777. [PMID: 33169766 DOI: 10.1039/d0dt03386c] [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
Crystals of (HDABCO+)9(DABCO)[Ni(dmit)2]9·6CH3CN were shown to have a space group of R3[combining macron], a hexapetal flower-like channel of [Ni(dmit)2] anions, and a one-dimensional hydrogen bonding chain composed of protonated DABCO and CH3CN molecules. The crystals display antiferromagnetic and ferromagnetic interactions within and between hexamers, respectively, whereas the flexible DABCO-CH3CN array shows dielectric relaxation.
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Affiliation(s)
- Simin Li
- Graduate School of Environmental Science, Hokkaido University, N10W5, Kita-ku, Sapporo 060-0810, Japan.
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8
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Jornet-Mollá V, Giménez-Saiz C, Cañadillas-Delgado L, Yufit DS, Howard JAK, Romero FM. Interplay between spin crossover and proton migration along short strong hydrogen bonds. Chem Sci 2020; 12:1038-1053. [PMID: 34163870 PMCID: PMC8179063 DOI: 10.1039/d0sc04918b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 11/16/2020] [Indexed: 12/19/2022] Open
Abstract
The iron(ii) salt [Fe(bpp)2](isonicNO)2·HisonicNO·5H2O (1) (bpp = 2,6-bis(pyrazol-3-yl)pyridine; isonicNO = isonicotinate N-oxide anion) undergoes a partial spin crossover (SCO) with symmetry breaking at T 1 = 167 K to a mixed-spin phase (50% high-spin (HS), 50% low-spin (LS)) that is metastable below T 2 = 116 K. Annealing the compound at lower temperatures results in a 100% LS phase that differs from the initial HS phase in the formation of a hydrogen bond (HB) between two water molecules (O4W and O5W) of crystallisation. Neutron crystallography experiments have also evidenced a proton displacement inside a short strong hydrogen bond (SSHB) between two isonicNO anions. Both phenomena can also be detected in the mixed-spin phase. 1 undergoes a light-induced excited-state spin trapping (LIESST) of the 100% HS phase, with breaking of the O4W⋯O5W HB and the onset of proton static disorder in the SSHB, indicating the presence of a light-induced activation energy barrier for proton motion. This excited state shows a stepped relaxation at T 1(LIESST) = 68 K and T 2(LIESST) = 76 K. Photocrystallography measurements after the first relaxation step reveal a single Fe site with an intermediate geometry, resulting from the random distribution of the HS and LS sites throughout the lattice.
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Affiliation(s)
- Verónica Jornet-Mollá
- Instituto de Ciencia Molecular, Universitat de València P. O. Box 22085 46071 València Spain
| | - Carlos Giménez-Saiz
- Instituto de Ciencia Molecular, Universitat de València P. O. Box 22085 46071 València Spain
| | | | - Dmitry S Yufit
- Department of Chemistry, Durham University Durham DH1 3LE UK
| | | | - Francisco M Romero
- Instituto de Ciencia Molecular, Universitat de València P. O. Box 22085 46071 València Spain
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9
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Sosa-Rivadeneyra MV, Vasquez-Ríos MG, Vargas-Olvera EC, Mendoza M, Varela-Caselis JL, Meza-León RL, Sánchez-Guadarrama MO, Höpfl H. Crystal structures of organic salts of chloranilic acid and 2,2′-bi(3-hydroxy-1,4-naphthoquinone) acting as proton donors to 4,4′-Bipyridine and 1,4-Diazabicyclo[2.2.2]octane: 3D networks with bifurcated N+-H···O−/O or N+-H···O/Cl synthons. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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10
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Gerrard N, Gattinoni C, McBride F, Michaelides A, Hodgson A. Strain Relief during Ice Growth on a Hexagonal Template. J Am Chem Soc 2019; 141:8599-8607. [PMID: 31023010 PMCID: PMC6543506 DOI: 10.1021/jacs.9b03311] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Indexed: 12/16/2022]
Abstract
Heterogeneous ice nucleation at solid surfaces impacts many areas of science, from environmental processes, such as precipitation, to microbiological systems and food processing, but the microscopic mechanisms underpinning nucleation remain unclear. Discussion of ice growth has often focused around the role of the surface in templating the structure of water, forcing the first layer to adopt the registry of the underlying substrate rather than that of ice. To grow a thick ice film, water in the first few ice layers must accommodate this strain, but understanding how this occurs requires detailed molecular-scale information that is lacking. Here we combine scanning tunneling microscopy, low-energy electron diffraction, and work-function measurements with electronic structure calculations to investigate the initial stages of ice growth on a Pt alloy surface, having a lattice spacing 6% larger than ice. Although the first layer of water forms a strictly commensurate hexagonal network, this behavior does not extend to the second layer. Instead, water forms a 2D structure containing extended defect rows made from face-sharing pentamer and octamer rings. The defect rows allow the majority of second-layer water to remain commensurate with the solid surface while compensating lateral strain by increasing the water density close to that of an ice surface. The observation of octamer-pentamer rows in ice films formed on several surfaces suggests that the octamer-pentamer defect motif acts as a flexible strain relief mechanism in thin ice films, providing a mechanism that is not available during the growth of strained films in other materials, such as semiconductors.
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Affiliation(s)
- Nikki Gerrard
- Surface
Science Research Centre and Department of Chemistry, University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - Chiara Gattinoni
- Materials
Theory, ETH Zürich, Wolfgang-Pauli-Str. 27, 8093 Zürich, Switzerland
| | - Fiona McBride
- Surface
Science Research Centre and Department of Chemistry, University of Liverpool, Liverpool L69 3BX, United Kingdom
| | - Angelos Michaelides
- Thomas
Young Centre, London Centre for Nanotechnology and Department of Physics
and Astronomy, University College London, London WC1E 6BT, United Kingdom
| | - Andrew Hodgson
- Surface
Science Research Centre and Department of Chemistry, University of Liverpool, Liverpool L69 3BX, United Kingdom
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11
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Donoshita M, Hayashi M, Ikeda R, Yoshida Y, Morikawa S, Sugimoto K, Kitagawa H. Drastic rearrangement of self-assembled hydrogen-bonded tapes in a molecular crystal. Chem Commun (Camb) 2018; 54:8571-8574. [PMID: 29943779 DOI: 10.1039/c8cc04376k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A 2 : 1 hydrogen-bonded crystal of 2-pyrrolidone and chloranilic acid shows structural phase transitions accompanied by the drastic rearrangement of hydrogen-bonded tapes. Such a phenomenon is attributed to the selective and directional character of hydrogen bonds.
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Affiliation(s)
- Masaki Donoshita
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
| | - Mikihiro Hayashi
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
| | - Ryuichi Ikeda
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
| | - Yukihiro Yoshida
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
| | - Shota Morikawa
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
| | - Kunihisa Sugimoto
- Japan Synchrotron Radiation Research Institute (JASRI), Spring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun Hyogo 679-5148, Japan
| | - Hiroshi Kitagawa
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
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12
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Malec LM, Gryl M, Stadnicka KM. Unmasking the Mechanism of Structural Para- to Ferroelectric Phase Transition in (NH 4) 2SO 4. Inorg Chem 2018; 57:4340-4351. [PMID: 29616803 DOI: 10.1021/acs.inorgchem.7b03161] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
New nontoxic and biocompatible ferroelectric materials are a subject undergoing intense study. One of the most promising research branches is focused on H-bonded organic or hybrid ferroelectrics. The engineering of these materials is based on mimicking the phase transition mechanisms of the well-known inorganic ferroelectrics. In our study, a coupled experimental and theoretical methodology was used for a precise investigation of the ferroelectric phase transition mechanism in ammonium sulfate (AS). A series of single-crystal X-ray diffraction measurements were performed in the temperature range between 273 and 163 K. The detailed inspection of the obtained static structural data, in the above-mentioned temperature range, allowed us to reveal dynamical effects at the ferroelectric phase transition. Accurate analysis of all geometrical features within the obtained crystal structures was carried out. The results were discussed in the view of previously discovered physical properties. X-ray studies were complemented by the use of quantum theory of atoms in molecules calculations and Hirshfeld surface analysis. Valence shell charge concentration analysis allowed us to find the subtle changes between charge density distribution within SO42- in para- and ferroelectric phases. H-bond interactions, geometrically classified in both AS phases, were all confirmed by the appropriate critical points. The interaction energies were estimated for the structures at 273, 233, 213, 183, and 163 K. Correlation between the geometrical approach and the results of theoretical calculations enabled us to discover the differences in interaction equilibrium between the AS phases. The mechanism of the phase transition originates from the disruption of the vibrational lattice mode between sulfate anions. Our studies resolved the problem, which was under discussion for more than 60 years.
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Affiliation(s)
- Leszek M Malec
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Krakow , Poland
| | - Marlena Gryl
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Krakow , Poland
| | - Katarzyna M Stadnicka
- Faculty of Chemistry , Jagiellonian University , Gronostajowa 2 , 30-387 Krakow , Poland
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13
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Kanetou T, Tsunashima R, Hoshino N, Akutagawa T. Solid-state structure and electronic states of hydrogen-bonded dimer of pyridyl-substituted tetrathiafulvalene salted with PF 6−. RSC Adv 2017. [DOI: 10.1039/c6ra27814k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Our results clarified uniqueness in hydrogen bonding TTFPy dimer in which proton in hydrogen bond was thermally fluctuated. In addition, the fluctuation was coupled with π-electronic systems of TTF moiety where electric dipole moment was amplified.
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Affiliation(s)
- Tomoaki Kanetou
- Graduate School of Science and Engineering
- Yamaguchi University
- Yamaguchi
- Japan
| | - Ryo Tsunashima
- Graduate School of Science and Engineering
- Yamaguchi University
- Yamaguchi
- Japan
| | - Norihisa Hoshino
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM)
- Tohoku University
- Sendai 980-8577
- Japan
| | - Tomoyuki Akutagawa
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM)
- Tohoku University
- Sendai 980-8577
- Japan
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14
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Stevens JS, Walczak M, Jaye C, Fischer DA. In Situ Solid-State Reactions Monitored by X-ray Absorption Spectroscopy: Temperature-Induced Proton Transfer Leads to Chemical Shifts. Chemistry 2016; 22:15600-15604. [PMID: 27534271 DOI: 10.1002/chem.201603822] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Indexed: 11/10/2022]
Abstract
The dramatic colour and phase alteration with the solid-state, temperature-dependent reaction between squaric acid and 4,4'-bipyridine has been probed in situ with X-ray absorption spectroscopy. The electronic and chemical sensitivity to the local atomic environment through chemical shifts in the near-edge X-ray absorption fine structure (NEXAFS) revealed proton transfer from the acid to the bipyridine base through the change in nitrogen protonation state in the high-temperature form. Direct detection of proton transfer coupled with structural analysis elucidates the nature of the solid-state process, with intermolecular proton transfer occurring along an acid-base chain followed by a domino effect to the subsequent acid-base chains, leading to the rapid migration along the length of the crystal. NEXAFS thereby conveys the ability to monitor the nature of solid-state chemical reactions in situ, without the need for a priori information or long-range order.
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Affiliation(s)
- Joanna S Stevens
- School of Chemical Engineering & Analytical Science, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
| | - Monika Walczak
- School of Materials, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Cherno Jaye
- Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland, 20899, USA
| | - Daniel A Fischer
- Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland, 20899, USA
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15
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Topological analysis of metal–ligand and hydrogen bonds in transition metal hybrid structures – A computational study. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.05.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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Martínez-Abadía M, Robles-Hernández B, de la Fuente MR, Giménez R, Ros MB. Photoresponsive Cyanostilbene Bent-Core Liquid Crystals as New Materials with Light-Driven Modulated Polarization. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:6586-6591. [PMID: 27213889 DOI: 10.1002/adma.201600311] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 04/25/2016] [Indexed: 06/05/2023]
Abstract
Two isomeric cyanostilbene photoswitchable bent-core mesogens with polar liquid crystal phases in which macroscopic polarization and luminescence can be light-modulated are introduced. Z/E isomerization or [2+2] cycloaddition photochemical processes occur depending on the chemical structure, which make the compounds very innovative multifunctional advanced materials.
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Affiliation(s)
- Marta Martínez-Abadía
- Instituto de Ciencia de Materiales de Aragón (ICMA), Departamento de Química Orgánica - Facultad de Ciencias, Universidad de Zaragoza-CSIC, 50009, Zaragoza, Spain
| | - Beatriz Robles-Hernández
- Departamento de Física Aplicada II, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, 48080, Bilbao, Spain
| | - María Rosario de la Fuente
- Departamento de Física Aplicada II, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, 48080, Bilbao, Spain
| | - Raquel Giménez
- Instituto de Ciencia de Materiales de Aragón (ICMA), Departamento de Química Orgánica - Facultad de Ciencias, Universidad de Zaragoza-CSIC, 50009, Zaragoza, Spain
| | - Maria Blanca Ros
- Instituto de Ciencia de Materiales de Aragón (ICMA), Departamento de Química Orgánica - Facultad de Ciencias, Universidad de Zaragoza-CSIC, 50009, Zaragoza, Spain
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17
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Pandeeswar M, Senanayak SP, Narayan KS, Govindaraju T. Multi-Stimuli-Responsive Charge-Transfer Hydrogel for Room-Temperature Organic Ferroelectric Thin-Film Devices. J Am Chem Soc 2016; 138:8259-68. [DOI: 10.1021/jacs.6b03811] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Makam Pandeeswar
- Bioorganic Chemistry
Laboratory, New Chemistry Unit,
and ‡Molecular Electronics
Lab, Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru 560064, India
| | - Satyaprasad P. Senanayak
- Bioorganic Chemistry
Laboratory, New Chemistry Unit,
and ‡Molecular Electronics
Lab, Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru 560064, India
| | - K. S. Narayan
- Bioorganic Chemistry
Laboratory, New Chemistry Unit,
and ‡Molecular Electronics
Lab, Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru 560064, India
| | - T. Govindaraju
- Bioorganic Chemistry
Laboratory, New Chemistry Unit,
and ‡Molecular Electronics
Lab, Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bengaluru 560064, India
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18
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Sovago I, Thomas LH, Adam MS, Capelli SC, Wilson CC, Farrugia LJ. High resolution X-ray and neutron diffraction studies on molecular complexes of chloranilic acid and lutidines. CrystEngComm 2016. [DOI: 10.1039/c6ce01065b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Structures and dielectric properties of three homonuclear H-bonded 1D chain complexes based on protonated 4,4′-bipyridine-N,N′-dioxide. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.10.046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Łuczyńska K, Drużbicki K, Lyczko K, Dobrowolski JC. Experimental (X-ray, (13)C CP/MAS NMR, IR, RS, INS, THz) and Solid-State DFT Study on (1:1) Co-Crystal of Bromanilic Acid and 2,6-Dimethylpyrazine. J Phys Chem B 2015; 119:6852-72. [PMID: 25961154 DOI: 10.1021/acs.jpcb.5b03279] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A combined structural, vibrational spectroscopy, and solid-state DFT study of the hydrogen-bonded complex of bromanilic acid with 2,6-dimethylpyrazine is reported. The crystallographic structure was determined by means of low-temperature single-crystal X-ray diffraction, which reveals the molecular units in their native protonation states, forming one-dimensional infinite nets of moderate-strength O···H-N hydrogen bonds. The nature of the crystallographic forces, stabilizing the studied structure, has been drawn by employing the noncovalent interactions analysis. It was found that, in addition to the hydrogen bonding, the intermolecular forces are dominated by stacking interactions and C-H···O contacts. The thermal and calorimetric analysis was employed to probe stability of the crystal phase. The structural analysis was further supported by a computationally assisted (13)C CP/MAS NMR study, providing a complete assignment of the recorded resonances. The vibrational dynamics was explored by combining the optical (IR, Raman, TDs-THz) and inelastic neutron scattering (INS) spectroscopy techniques with the state-of-the-art solid-state density functional theory (DFT) computations. Despite the quasi-harmonic approximation assumed throughout the study, an excellent agreement between the theoretical and experimental data was achieved over the entire spectral range, allowing for a deep and possibly thorough understanding of the vibrational characteristics of the system. Particularly, the significant influence of the long-range dipole coupling on the IR spectrum has been revealed. On the basis of a wealth of information gathered, the recent implementation of a dispersion-corrected linear-response scheme has been extensively examined.
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Affiliation(s)
- Katarzyna Łuczyńska
- †Institute of Nuclear Chemistry and Technology, 16 Dorodna Street, 03-195, Warsaw, Poland.,‡Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980, Dubna, Russian Federation
| | - Kacper Drużbicki
- ‡Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980, Dubna, Russian Federation.,§Department of Radiospectroscopy, Faculty of Physics, Adam Mickiewicz University, Umultowska 85, 61-614, Poznan, Poland
| | - Krzysztof Lyczko
- †Institute of Nuclear Chemistry and Technology, 16 Dorodna Street, 03-195, Warsaw, Poland
| | - Jan Cz Dobrowolski
- †Institute of Nuclear Chemistry and Technology, 16 Dorodna Street, 03-195, Warsaw, Poland.,∥National Medicines Institute, 30/34 Chełmska Street, 00-725 Warsaw, Poland
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21
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Wang BQ, Yan HB, Huang ZQ, Zhang YH, Sun J. Reversible phase transition of 2-carboxypyridinium perchlorate-pyridinium-2-carboxylate (1/1). Acta Crystallogr C 2015; 71:247-51. [PMID: 25836279 DOI: 10.1107/s2053229615003691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Accepted: 02/22/2015] [Indexed: 11/10/2022] Open
Abstract
The title salt, C6H6NO2(+)·ClO4(-)·C6H5NO2, was crystallized from an aqueous solution of equimolar quantities of perchloric acid and pyridine-2-carboxylic acid. Differential scanning calorimetry (DSC) measurements show that the compound undergoes a reversible phase transition at about 261.7 K, with a wide heat hysteresis of 21.9 K. The lower-temperature polymorph (denoted LT; T = 223 K) crystallizes in the space group C2/c, while the higher-temperature polymorph (denoted RT; T = 296 K) crystallizes in the space group P2/c. The relationship between these two phases can be described as: 2a(RT) = a(LT); 2b(RT) = b(LT); c(RT) = c(LT). The crystal structure contains an infinite zigzag hydrogen-bonded chain network of 2-carboxypyridinium cations. The most distinct difference between the higher (RT) and lower (LT) temperature phases is the change in dihedral angle between the planes of the carboxylic acid group and the pyridinium ring, which leads to the formation of different ten-membered hydrogen-bonded rings. In the RT phase, both the perchlorate anions and the hydrogen-bonded H atom within the carboxylic acid group are disordered. The disordered H atom is located on a twofold rotation axis. In the LT phase, the asymmetric unit is composed of two 2-carboxypyridinium cations, half an ordered perchlorate anion with ideal tetrahedral geometry and a disordered perchlorate anion. The phase transition is attributable to the order-disorder transition of half of the perchlorate anions.
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Affiliation(s)
- Bi-Qin Wang
- School of Chemistry and Chemical Engineering, Faculty of Light Industry, Hubei University of Technology, Wuhan, Hubei 430068, People's Republic of China
| | - Hai-Biao Yan
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, Hubei 430068, People's Republic of China
| | - Zheng-Qing Huang
- School of Chemistry and Chemical Engineering, Faculty of Light Industry, Hubei University of Technology, Wuhan, Hubei 430068, People's Republic of China
| | - Yun-Hua Zhang
- Synergistic Innovation Center of Catalysis Materials of Hubei Province, Wuhan, Hubei 430068, People's Republic of China
| | - Jing Sun
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan, Hubei 430068, People's Republic of China
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22
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The structure and dielectric properties of ionic compounds with flexible ammonium moiety. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2014.10.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Otaki H, Ando K. Path integral Monte Carlo study of hydrogen tunneling effect on dielectric properties of molecular crystal 5-Bromo-9-hydroxyphenalenone. Chem Phys 2015. [DOI: 10.1016/j.chemphys.2014.11.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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24
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Sobolewski AL. Organic photovoltaics without p–n junctions: a computational study of ferroelectric columnar molecular clusters. Phys Chem Chem Phys 2015. [DOI: 10.1039/c5cp02448j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A ferroelectrically arranged intermolecular hydrogen bond network provides a force for splitting exciton into charge carriers and the generation of photovoltaic effects.
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25
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Jana S, Shaw BK, Bhowmik P, Harms K, Drew MGB, Chattopadhyay S, Saha SK. Field-Induced Ferromagnetism and Multiferroic Behavior in End-on Pseudohalide-Bridged Dinuclear Copper(II) Complexes with Tridentate Schiff Base Blocking Ligands. Inorg Chem 2014; 53:8723-34. [DOI: 10.1021/ic501353g] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Subrata Jana
- Department of Chemistry, Inorganic Section, Jadavpur University, Kolkata - 700 032, India
| | - Bikash Kumar Shaw
- Department of Materials Science, Indian Association for the Cultivation of Science, Kolkata - 700 032, India
| | - Prasanta Bhowmik
- Department of Chemistry, Inorganic Section, Jadavpur University, Kolkata - 700 032, India
| | - Klaus Harms
- FachbereichChemie, Philipps-Universität Marburg, Hans-Meerwein-Straße, 35032 Marburg, Germany
| | - Michael G. B. Drew
- School of Chemistry, The University of Reading, P.O. Box 224, Whiteknights,
Reading RG6 6AD, United Kingdom
| | - Shouvik Chattopadhyay
- Department of Chemistry, Inorganic Section, Jadavpur University, Kolkata - 700 032, India
| | - Shyamal Kumar Saha
- Department of Materials Science, Indian Association for the Cultivation of Science, Kolkata - 700 032, India
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26
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Starodub VA, Starodub TN. Radical anion salts and charge transfer complexes based on tetracyanoquinodimethane and other strong π-electron acceptors. RUSSIAN CHEMICAL REVIEWS 2014. [DOI: 10.1070/rc2014v083n05abeh004299] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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27
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Chen S, Zeng XC. Design of ferroelectric organic molecular crystals with ultrahigh polarization. J Am Chem Soc 2014; 136:6428-36. [PMID: 24717106 DOI: 10.1021/ja5017393] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Inspired by recent successful synthesis of room-temperature ferroelectric supramolecular charge-transfer complexes, i.e., tetrathiafulvalene (TTF)- and pyromellitic diimide (PMDI)-based crystals (Tayi et al. Nature 2012, 488, 485-489), three new ferroelectric two-component organic molecular crystals are designed based on the TTF and PMDI motifs and an extensive polymorph search. To achieve energetically favorable packing structures for the crystals, a newly developed computational approach that combines polymorph predictor with density functional theory (DFT) geometry optimization is employed. Tens of thousands of packing structures for the TTF- and PMDI-based crystals are first generated based on the limited number of asymmetric units in a unit cell as well as limited common symmetry groups for organocarbon crystals. Subsequent filtering of these packing structures by comparing with the reference structures yields dozens of promising crystal structures. Further DFT optimizations allow us to identify several highly stable packing structures that possess the space group of P2₁ as well as high to ultrahigh spontaneous polarizations (23-127 μC/cm(2)) along the crystallographic b axis. These values are either comparable to or much higher than the computed value (25 μC/cm(2)) or measured value (55 μC/cm(2)) for the state-of-the-art organic supramolecular systems. The high polarization arises from the ionic displacement. We further construct surface models to derive the electric-field-switched low-symmetry structures of new TTF- and PMDI-based crystals. By comparing the high-symmetry and low-symmetry crystal structures, we find that the ferroelectric polarization of the crystals is very sensitive to atomic positions, and a small molecular displacement may result in relatively high polarizations along the a and c axes, polarity reversal, and/or electronic contribution to polarization. If these newly designed TTF- and PMDI-based crystals with high polarizations are confirmed by experiments, the computer-aided ferroelectric material design on the basis of hydrogen-bonded charge-transfer complexes with flexible electron-donor and acceptor molecules would be proven valuable for expediting the search of room-temperature "displasive-type" ferroelectric organic crystals.
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Affiliation(s)
- Shuang Chen
- Department of Chemistry and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln , Lincoln, Nebraska 68588, United States
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28
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Chen S, Shang R, Hu KL, Wang ZM, Gao S. [NH2NH3][M(HCOO)3] (M = Mn2+, Zn2+, Co2+and Mg2+): structural phase transitions, prominent dielectric anomalies and negative thermal expansion, and magnetic ordering. Inorg Chem Front 2014. [DOI: 10.1039/c3qi00034f] [Citation(s) in RCA: 161] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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29
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Asthana D, Keshri SK, Hundal G, Sharma G, Mukhopadhyay P. Self-assembly patterns of steroid-based all-organic ferroelectrics: valuable insights from the single-crystals derived from an organogel and solution. CrystEngComm 2014. [DOI: 10.1039/c4ce00013g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report herein the first example of a single-crystal grown from a steroid-based organogel matrix.
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Affiliation(s)
- Deepak Asthana
- Supramolecular & Material Chemistry Lab
- School of Physical Sciences
- JNU
- New Delhi, India
| | - Sudhir K. Keshri
- Supramolecular & Material Chemistry Lab
- School of Physical Sciences
- JNU
- New Delhi, India
| | | | | | - Pritam Mukhopadhyay
- Supramolecular & Material Chemistry Lab
- School of Physical Sciences
- JNU
- New Delhi, India
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30
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Affiliation(s)
- Zhe-Ming Wang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, China
| | - Song Gao
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, China
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31
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Allen FH, Cruz-Cabeza AJ, Wood PA, Bardwell DA. Hydrogen-bond landscapes, geometry and energetics of squaric acid and its mono- and dianions: a Cambridge Structural Database, IsoStar and computational study. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2013; 69:514-523. [PMID: 24056361 DOI: 10.1107/s2052519213020277] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Accepted: 07/22/2013] [Indexed: 06/02/2023]
Abstract
As part of a programme of work to extend central-group coverage in the Cambridge Crystallographic Data Centre's (CCDC) IsoStar knowledge base of intermolecular interactions, we have studied the hydrogen-bonding abilities of squaric acid (H2SQ) and its mono- and dianions (HSQ(-) and SQ(2-)) using the Cambridge Structural Database (CSD) along with dispersion-corrected density functional theory (DFT-D) calculations for a range of hydrogen-bonded dimers. The -OH and -C=O groups of H2SQ, HSQ(-) and SQ(2-) are potent donors and acceptors, as indicated by their hydrogen-bond geometries in available crystal structures in the CSD, and by the attractive energies calculated for their dimers with acetone and methanol, which were used as model acceptors and donors. The two anions have sufficient examples in the CSD for their addition as new central groups in IsoStar. It is also shown that charge- and resonance-assisted hydrogen bonds involving H2SQ and HSQ(-) are similar in strength to those made by carboxylate COO(-) acceptors, while hydrogen bonds made by the dianion SQ(2-) are somewhat stronger. The study reinforces the value of squaric acid and its anions as cocrystal formers and their actual and potential importance as isosteric replacements for carboxylic acid and carboxylate functions.
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Affiliation(s)
- Frank H Allen
- Cambridge Crystallographic Data Centre (CCDC), 12 Union Road, Cambridge CB2 1EZ, England
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32
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Dega-Szafran Z, Katrusiak A, Szafran M. Stable Molecular Complex of Squaric Acid with 2-(Quinuclidinium)propionate. Aust J Chem 2013. [DOI: 10.1071/ch13121] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Squaric acid (3,4-dihydroxy-3-cyclobuten-1,2-dione, H2SQ) forms a complex with 2-(quinuclidinium)propionate (QNPr). In crystals, the molecules of H2SQ and zwitterions of QNPr are bridged by two strong non-equivalent O–H⋯O hydrogen bonds of 2.476(2) and 2.482(1) Å. The complex is investigated by X-ray diffraction, FTIR, and NMR techniques, and the results are supported by density functional theory calculations. The solid-state aggregation is consistent with the NMR results, recorded for an aqueous solution, and is also reproduced for the structure optimized at the B3LYP/6-311++G(d,p) level of theory. The calculated IR frequencies for the optimized structure have been used for the assignment of the experimental FTIR spectrum, where the broad absorption at ~2400 cm–1 corresponds to the short asymmetric OH⋯O bonds.
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34
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Morimoto M, Takashio N, Irie M. Crystal Structures and Dielectric Properties of 2-Imidazoline Derivatives Having Intermolecular Hydrogen-bonded Networks. CHEM LETT 2012. [DOI: 10.1246/cl.2012.525] [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]
Affiliation(s)
- Masakazu Morimoto
- Department of Chemistry, Rikkyo University
- Research Center for Smart Molecules, Rikkyo University
- Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST)
| | | | - Masahiro Irie
- Department of Chemistry, Rikkyo University
- Research Center for Smart Molecules, Rikkyo University
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35
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Yamamura Y, Saito E, Saitoh H, Hoshino N, Saito K. New Organic Ferroelectrics: Cocrystal of 5,5′-Dimethyl-2,2′-bipyridine and Bromanilic Acid. CHEM LETT 2012. [DOI: 10.1246/cl.2012.119] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yasuhisa Yamamura
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba
| | - Erika Saito
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba
| | - Hideki Saitoh
- Graduate School of Science and Engineering, Saitama University
| | - Norie Hoshino
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba
| | - Kazuya Saito
- Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba
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36
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Di Sante D, Stroppa A, Picozzi S. Structural, electronic and ferroelectric properties of croconic acid crystal: a DFT study. Phys Chem Chem Phys 2012; 14:14673-81. [DOI: 10.1039/c2cp42127e] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Ford SJ, Delamore OJ, Evans JSO, McIntyre GJ, Johnson MR, Radosavljević Evans I. Giant deuteron migration during the isosymmetric phase transition in deuterated 3,5-pyridinedicarboxylic acid. Chemistry 2011; 17:14942-51. [PMID: 22114013 DOI: 10.1002/chem.201101104] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Revised: 09/20/2011] [Indexed: 11/07/2022]
Abstract
Deuterated 3,5-pyridinedicarboxylic acid exhibits reversible temperature-induced deuteron migration of a magnitude unprecedented in this class of compounds. We used a combination of variable-temperature powder and single-crystal neutron diffraction and density functional theory (DFT)-based computational methods to elucidate the origin of this remarkable behaviour. Single-crystal neutron diffraction shows that between 15 and 300 K, the deuteron moves by 0.32(1) Å and the structure changes from a low-temperature N-D···O form to a high-temperature N···D-O form. Variable-temperature powder neutron-diffraction data, which was fitted by using parametric Rietveld refinement, show that this deuteron migration is due to an isosymmetric, first-order phase transition that occurs by growth of the daughter phase in the parent-phase matrix. Similar phase transitions are observed in two selectively deuterated forms of the material. DFT calculations demonstrate the role of phonons and show that vibrational free-energy stabilisation, which plays a key role in the observed structural phase transitions, is more pronounced in the fully deuterated material and proportional to the mass of the molecule, that is, the level of deuteration. This is consistent with our experimental work, for which distinct crystallographic phase transitions were clearly observed for the three deuterated systems, but not for the fully protonated material.
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Affiliation(s)
- Samantha J Ford
- Department of Chemistry, Durham University, Science Site, South Road, Durham DH1 3LE, UK
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38
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Udachin KA, Zaman MB, Ripmeester JA. Bis(guanidinium) chloranilate. Acta Crystallogr Sect E Struct Rep Online 2011; 67:o2625. [PMID: 22058767 PMCID: PMC3201558 DOI: 10.1107/s1600536811036373] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Accepted: 09/06/2011] [Indexed: 11/23/2022]
Abstract
The asymmetric unit of the title co-crystal, 2CH6N3+·C6Cl2O42−, contains one half of a chloranilate anion and one guanidinium cation, which are connected by strong N—H⋯O hydrogen bonds into a two-dimensional network.
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39
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Li MY, Kurmoo M, Wang ZM, Gao S. Metal-Organic Niccolite: Synthesis, Structures, Phase Transition, and Magnetic Properties of [CH3NH2(CH2)2NH2CH3][M2(HCOO)6] (M=divalent Mn, Fe, Co, Ni, Cu and Zn). Chem Asian J 2011; 6:3084-96. [DOI: 10.1002/asia.201100290] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2011] [Indexed: 11/06/2022]
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40
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Isakov DV, de Matos Gomes E, Vieira LG, Dekola T, Belsley MS, Almeida BG. Oriented single-crystal-like molecular arrangement of optically nonlinear 2-methyl-4-nitroaniline in electrospun nanofibers. ACS NANO 2011; 5:73-8. [PMID: 21142181 DOI: 10.1021/nn101413x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
In-plane aligned nanofibers of organic 2-methyl-4-nitroaniline (MNA) were produced by the electrospinning technique using a 1:1 weight ratio with poly(l-lactic acid). The fibers are capable of enormous efficient optical second harmonic generation as strong as pure MNA crystals in powder form. Structural, spectroscopic, and second harmonic generation polarimetry studies show that the MNA crystallizes within the fibers in an orientation in which the aromatic rings of MNA are predominantly orientated edge-on with respect to the plane of the fiber array and with their dipole moments aligned with the fiber axis. The results show that the electrospinning technique is an effective method to fabricate all-organic molecular functional devices based on polymer nanofibers with guest molecules possessing strong nonlinear optical and/or polar properties.
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Affiliation(s)
- Dmitry V Isakov
- Centro de Física, Universidade do Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
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Duan HB, Zhao HR, Ren XM, Zhou H, Tian ZF, Jin WQ. Inorganic–organic hybrid compounds based on face-sharing octahedral [PbI3]∞ chains: self-assemblies, crystal structures, and ferroelectric, photoluminescence properties. Dalton Trans 2011; 40:1672-83. [PMID: 21246133 DOI: 10.1039/c0dt00875c] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Hai-Bao Duan
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, PR China
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Zhao SP, Ren XM. Toward design of multiple-property inorganic–organic hybrid compounds based on face-sharing octahedral iodoplumbate chains. Dalton Trans 2011; 40:8261-72. [DOI: 10.1039/c0dt01806f] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Molčanov K, Kojić-Prodić B, Babić D, Žilić D, Rakvin B. Stabilisation of tetrabromo- and tetrachlorosemiquinone (bromanil and chloranil) anion radicals in crystals. CrystEngComm 2011. [DOI: 10.1039/c1ce05513e] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ding LJ, Yao KL, Fu HH. Spin–lattice coupling driven ferroelectric transition in one-dimensional organic quantum magnets. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm02025g] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Asthana D, Kumar A, Pathak A, Sukul PK, Malik S, Chatterjee R, Patnaik S, Rissanen K, Mukhopadhyay P. An all-organic steroid–D–π-A modular design drives ferroelectricity in supramolecular solids and nano-architectures at RT. Chem Commun (Camb) 2011; 47:8928-30. [DOI: 10.1039/c1cc12398j] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Sui Y, Liu DS, Hu RH, Chen HM. Discovery of a new type of organic ferroelectric materials in natural biomass dehydroabietylamine Schiff bases. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm03461d] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Saito G, Ikegami H, Yoshida Y, Drozdova OO, Nishimura K, Horiuchi S, Yamochi H, Otsuka A, Hiramatsu T, Maesato M, Nakamura T, Akutagawa T, Yumoto T. Ionicity Phase Diagram of Trifluoromethyl-TCNQ (CF3TCNQ) Charge-Transfer Solids. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2010. [DOI: 10.1246/bcsj.20100102] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Ye HY, Cai HL, Ge JZ, Xiong RG. Reversible structural phase transition of pyridinium-4-carboxylic acid perchlorate. J Appl Crystallogr 2010. [DOI: 10.1107/s0021889810024039] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Pyridinium-4-carboxylic acid perchlorate (C6H6NO2·ClO4) was synthesized and separated as crystals. Differential scanning calorimetry measurement shows that this compound undergoes a reversible phase transition at about 122 K with a heat hysteresis of 1.8 K. A dielectric anomaly observed at 127 K further confirms the phase transition. The low-temperature (LT;T= 103 K) structure has space groupP21/cand cell parametersa= 17.356 (6),b= 13.241 (3),c= 16.161 (7) Å, β = 138.055 (17)°. The high-temperature (HT;T= 298 K) structure has space groupP21/cand cell parametersa= 5.5046 (11),b= 13.574 (3),c= 11.834 (2) Å, β = 99.35 (3)°, but can be re-described using new axesa′ =a,b′ =b,c′ = −2a+c,V′ =Vto give the cella′ = 5.5046 (11),b′ = 13.574 (3),c′ = 17.424 (3) Å, β′ = 137.92 (3)° and space groupP21/c. The associated coordinate transformation isx′ =x+ 2z,y′ =y,z′ =zand the associated reflection index transformation ish′ =h,k′ =k,l′ =l− 2h. The relationship between the two cells is 3a,b,c(HT) approximatesa,b,c(LT). The crystal comprises one-dimensional hydrogen-bonded chains of the pyridinium-4-carboxylic acid cations and perchlorate anions. A precise analysis of the main packing and structural differences as well as the changes in the intermolecular interactions between the HT phase and the LT phase reveals that the disorder–order transition of the perchlorate anions may be the driving force of the transition, and the hydrogen-bonding effect may contribute to the transition as a secondary parameter.
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Molčanov K, Kojić-Prodić B. Salts and co-crystals of chloranilic acid with organic bases: is it possible to predict a salt formation? CrystEngComm 2010. [DOI: 10.1039/b908492d] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Akutagawa T, Sato D, Ye Q, Endo T, Noro SI, Takeda S, Nakamura T. [18]Crown-6 rotator in spin-ladder compound of m-aminoanilinium([18]crown-6)[Ni(dmit)2]−. Dalton Trans 2010; 39:8219-27. [DOI: 10.1039/c0dt00308e] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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