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Kronawitter SM, Kieslich G. The wondrous world of ABX 3 molecular perovskites. Chem Commun (Camb) 2024. [PMID: 39291797 DOI: 10.1039/d4cc03833a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2024]
Abstract
The substitution of atoms with molecular building blocks to form hybrid organic-inorganic networks has been an important research theme for several decades. ABX3 molecular perovskites (MolPs) are a subclass of hybrid networks, adopting the perovskite structure with cationic and anionic molecules on the A-site and X-site. MolPs such as ((CH3)2NH2)Zn(HCOO)3 or ((n-C3H7)4N)Mn(C2N3)3 show a range of fascinating structure-chemical properties, including temperature-driven phase transitions that include a change of polarity as interesting for ferroelectrics, pressure-driven order-disorder phase transitions as interesting for barocaloric solid-state refrigeration, and most recently, melting-behaviour before decomposition with subsequent glass formation after cooling. In this feature article, we take a more personal perspective, overviewing the field's current state and outlining future directions. We start by comparing the MolPs' structural chemistry with their inorganic parents, a comparison that helps us identify opportunities for material design. After discussing the MolPs' potential as barocalorics, ferroelectrics, and in the area of glasses, we outline some challenges that lie ahead. Beyond their relevance as a hybrid analogue of inorganic perovskites, we find that MolPs' chemical parameter space provides exciting opportunities for systematically developing design guidelines for functional materials.
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Affiliation(s)
- Silva M Kronawitter
- Department of Chemistry, TUM School of Natural Sciences, Technical University of Munich, Lichtenbergstraße 4, 85748 Garching, Germany.
| | - Gregor Kieslich
- Department of Chemistry, TUM School of Natural Sciences, Technical University of Munich, Lichtenbergstraße 4, 85748 Garching, Germany.
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2
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Nowok A, Sobczak S, Roszak K, Szeremeta AZ, Mączka M, Katrusiak A, Pawlus S, Formalik F, Barros Dos Santos AJ, Paraguassu W, Sieradzki A. Temperature and volumetric effects on structural and dielectric properties of hybrid perovskites. Nat Commun 2024; 15:7571. [PMID: 39217142 PMCID: PMC11365980 DOI: 10.1038/s41467-024-51396-5] [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: 11/24/2023] [Accepted: 08/05/2024] [Indexed: 09/04/2024] Open
Abstract
Three-dimensional organic-inorganic perovskites are rapidly evolving materials with diverse applications. This study focuses on their two representatives - acetamidinium manganese(II) formate (AceMn) and formamidinium manganese(II) formate (FMDMn) - subjected to varying temperature and pressure. We show that AceMn undergoes atypical pressure-induced structural transformations at room temperature, increasing the symmetry from ambient-pressure P21/n phase II to the high-pressure Pbca phase III. In turn, FMDMn in its C2/c phase II displays temperature- and pressure-induced ordering of cage cations that proceeds without changing the phase symmetry or energy barriers. The FMD+ cations do not order under constant volume across the pressure-temperature plane, despite similar pressure and temperature evolution of the unit-cell parameters. Temperature and pressure affect the cage cations differently, which is particularly pronounced in their relaxation dynamics seen by dielectric spectroscopy. Their motion require a rearrangement of the metal-formate framework, resulting in the energy and volumetric barriers defined by temperature-independent activation energy and activation volume parameters. As this process is phonon-assisted, the relaxation time is strongly temperature-dependent. Consequently, relaxation times do not scale with unit-cell volume nor H-bond lengths in formates, offering the possibility of tuning their electronic properties by external stimuli (like temperature or pressure) even without any structural changes.
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Affiliation(s)
- Andrzej Nowok
- Laboratoire National des Champs Magnétiques Intenses, EMFL, CNRS UPR 3228, Université Toulouse, INSA-T, Toulouse, France.
- Department of Experimental Physics, Wrocław University of Science and Technology, Wrocław, Poland.
| | - Szymon Sobczak
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Poznań, Poland
| | - Kinga Roszak
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Poznań, Poland
| | - Anna Z Szeremeta
- August Chełkowski Institute of Physics, University of Silesia in Katowice, Chorzów, Poland
| | - Mirosław Mączka
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Wrocław, Poland
| | - Andrzej Katrusiak
- Faculty of Chemistry, Adam Mickiewicz University, Poznań, Poznań, Poland.
| | - Sebastian Pawlus
- August Chełkowski Institute of Physics, University of Silesia in Katowice, Chorzów, Poland
| | - Filip Formalik
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, IL, USA
- Department of Micro, Nano and Bioprocess Engineering, Wrocław University of Science and Technology, Wrocław, Poland
| | | | | | - Adam Sieradzki
- Department of Experimental Physics, Wrocław University of Science and Technology, Wrocław, Poland.
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3
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Wang Z, Xiong LH, Fan HM, Wang BWW, Gao S. A highly polar hybrid perovskite of [FCH2CH3NH3][Mn(HCOO)3]. Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202200086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zheming Wang
- Peking University College of Chemistry and Molecular Engineering ChengFu Road 292 100871 Beijing CHINA
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4
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Wang P, Chen MK, Tong YQ, Yin SQ, Huang B. Structural phase transition and dielectric relaxation in an organic–inorganic hybrid compound: [(CH 3) 3NH] 4[Fe(SCN) 6]Cl. CrystEngComm 2022. [DOI: 10.1039/d2ce01150f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A new hybrid compound undergoes a structural phase transition accompanied by the thermal hysteresis of dielectric bistability as well as anisotropic dielectric relaxation along the a-, b-, and c-axis.
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Affiliation(s)
- Ping Wang
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
| | - Ming-Kun Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yu-Qiao Tong
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
| | - Shi-Qing Yin
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
| | - Bo Huang
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650500, China
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5
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Mączka M, Stefańska D, Gągor A, Pikul A. The cation-dependent structural, magnetic and optical properties of a family of hypophosphite hybrid perovskites. Dalton Trans 2021; 51:352-360. [PMID: 34897339 DOI: 10.1039/d1dt03382d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hypophosphite hybrid perovskites have recently received widespread attention due to their diverse structural and magnetic properties, negative thermal expansion and photoluminescence behaviour. Herein, we report two new three-dimensional hybrid perovskites containing unusually large organic cations, pyrrolidinium and 2-hydroxyethylammonium. We report the crystal structures of these new manganese-hypophosphite frameworks and their magnetic and optical properties. We also report the magnetic and optical properties of two previously discovered analogues, dimethylammonium and imidazolium manganese hypophosphites. Both new compounds crystallize in a monoclinic structure, space group P21/n, with ordered organic cations at room temperature. Magnetic studies show that all studied compounds are examples of canted antiferromagnets but the weak ferromagnetic contribution and the ordering temperature are significantly modulated by the type of organic cation located in the cavity of the framework. We discuss the origin of this behaviour. Upon ultraviolet excitation, all compounds exhibit broadband photoluminescence associated with the 4T1g(G) → 6A1g(S) transition of octahedrally coordinated Mn2+ ions. The position of the PL band depends on the type of organic cation, being the most blue-shifted for the imidazolium analogue (646 nm) and the most red-shifted for the pyrrolidinium counterpart (689 nm). The most interesting property of the studied hypophosphites is, however, the strong temperature dependence of the photoluminescence intensity, suggesting the possible application of these compounds in non-contact optical thermometry.
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Affiliation(s)
- Mirosław Mączka
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okólna 2, 50-422 Wrocław, Poland.
| | - Dagmara Stefańska
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okólna 2, 50-422 Wrocław, Poland.
| | - Anna Gągor
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okólna 2, 50-422 Wrocław, Poland.
| | - Adam Pikul
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, ul. Okólna 2, 50-422 Wrocław, Poland.
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6
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Ptak M, Sieradzki A, Šimėnas M, Maczka M. Molecular spectroscopy of hybrid organic–inorganic perovskites and related compounds. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214180] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Trzebiatowska M. The spectroscopic study of phase transitions in the series of cyanide perovskites. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 245:118957. [PMID: 32980757 DOI: 10.1016/j.saa.2020.118957] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 06/11/2023]
Abstract
The series of MeA2KFe(CN)6, where MeA = CH3NH3+, (CH3)2NH2+, (CH3)3NH+ and (CH3)4N+, has been studied by IR and Raman spectroscopy as the function of temperature in order to elucidate the mechanisms of the phase transitions. The order-disorder process has been confirmed in all cases. Different models have been proposed based on the dynamic effects observed in the spectra. The crystal containing (CH3)2NH2+ cations constitutes a model with melt-like thermal behavior and strongly temperature-influenced hydrogen bonding. In the case of sample with (CH3)4N+ an unperturbed rotation of these cations is observed, while in the crystals with methyl- and trimethylammonium cations the hydrogen bonds acting as positional stabilizers prevent the organic cation from a completely free motion. Additionally, the statistical disorder of dimethyl- and trimethylammonium cations has been confirmed by the thermal evolution of the FWHM of the related bands.
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Affiliation(s)
- Monika Trzebiatowska
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna Str. 2, 50-422 Wrocław, Poland.
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8
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Mączka M, Stefańska D, Ptak M, Gągor A, Pikul A, Sieradzki A. Cadmium and manganese hypophosphite perovskites templated by formamidinium cations: dielectric, optical and magnetic properties. Dalton Trans 2021; 50:2639-2647. [DOI: 10.1039/d0dt03995k] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The first cadmium hypophosphite perovskite exhibiting reddish-orange emission, glass-like behaviour and order–disorder phase transition.
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Affiliation(s)
- Mirosław Mączka
- Institute of Low Temperature and Structure Research
- Polish Academy of Sciences
- 50-422 Wrocław
- Poland
| | - Dagmara Stefańska
- Institute of Low Temperature and Structure Research
- Polish Academy of Sciences
- 50-422 Wrocław
- Poland
| | - Maciej Ptak
- Institute of Low Temperature and Structure Research
- Polish Academy of Sciences
- 50-422 Wrocław
- Poland
| | - Anna Gągor
- Institute of Low Temperature and Structure Research
- Polish Academy of Sciences
- 50-422 Wrocław
- Poland
| | - Adam Pikul
- Institute of Low Temperature and Structure Research
- Polish Academy of Sciences
- 50-422 Wrocław
- Poland
| | - Adam Sieradzki
- Department of Experimental Physics
- Wrocław University of Science and Technology
- Wrocław
- Poland
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Hadjiivanov KI, Panayotov DA, Mihaylov MY, Ivanova EZ, Chakarova KK, Andonova SM, Drenchev NL. Power of Infrared and Raman Spectroscopies to Characterize Metal-Organic Frameworks and Investigate Their Interaction with Guest Molecules. Chem Rev 2020; 121:1286-1424. [DOI: 10.1021/acs.chemrev.0c00487] [Citation(s) in RCA: 150] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | - Dimitar A. Panayotov
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Mihail Y. Mihaylov
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Elena Z. Ivanova
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Kristina K. Chakarova
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Stanislava M. Andonova
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
| | - Nikola L. Drenchev
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
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Abstract
A survey of the rigid unit modes in molecular perovskites is presented, showing how the prevalence of conventional tilts, unconventional tilts and columnar shifts vary across the different classes of molecular perovskites.
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Affiliation(s)
- Hanna L. B. Boström
- Department of Inorganic Chemistry
- Ångström Laboratory
- Uppsala Universitet
- 751 21 Uppsala
- Sweden
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11
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Xie D, He W, Xiao J, Wu Y, Guo Y, Liu Q, Guo C. Direct synthesis of 2-oxo-acetamidines from methyl ketones, aromatic amines and DMF via copper-catalyzed C(sp 3)-H amidination. RSC Adv 2019; 9:7203-7209. [PMID: 35519951 PMCID: PMC9061129 DOI: 10.1039/c9ra00616h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 02/25/2019] [Indexed: 12/18/2022] Open
Abstract
A convenient method for the synthesis of 2-oxo-acetamidines from methyl ketones using aromatic amines and DMF as nitrogen sources is reported via copper-catalyzed C(sp3)-H amidination. Various methyl ketones react readily with aromatic amines and DMF, producing 2-oxo-acetamidines in yields of 47 to 92%. This protocol features the simultaneous formation of C-N and C[double bond, length as m-dash]N bonds using DMF and aromatic amines as two different nitrogen sources. It thus provides an efficient approach to construct acyclic amidines via three C(sp3)-H bond amidination. Based on the preliminary experiments, a plausible mechanism of this transformation is disclosed.
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Affiliation(s)
- Dianke Xie
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Wei He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Jiang Xiao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Yao Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Yongjia Guo
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Qiang Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
| | - Cancheng Guo
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China
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12
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Zhao JP, Han SD, Liu FC. Tunable Ferromagnetic Strength in Niccolite Structural Heterometallic Formate Framework Based on Orthogonal Magnetic Orbital Interactions. Inorg Chem 2019; 58:1184-1190. [PMID: 30592220 DOI: 10.1021/acs.inorgchem.8b02587] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A series of heterometallic formate framework templated by amines were solvothermally prepared. They feature the formula of [AI][CrMII(HCO2)6] (AI = NH4H2OI and M = Mn for 1, AI = CH3NH3I and M = Fe for 2, AI = CH3NH2CH3I and M = Co for 3, AI = CH3NH3I and M = Ni for 4). The title compounds exhibit isostructural niccolite architectures with differences only in the host metal ions and guest amines. Tunable ferromagnetic (FO) strength was realized in the resulting framework under the guidance of orthogonal magnetic orbital analysis of CrIII (t2g3eg) and MII (t2g3eg2 for MnII, t2g4eg2 for FeII, t2g5eg2 for CoII, t2g6eg2 for NiII) ions. The magnetic ordering temperatures derived from the experimental magnetic measurements for 1-4 are lower than 2, 10.3, 7.6, and 22.0 K, respectively. Notably, thanks to the weak FO coupling between CrIII and MnII ions, compound 1 displays a large magnetocaloric effect bearing the maximum of magnetic entropy change (-Δ Smmax) up to 43.9 J kg-1 K-1 with Δ H = 7 T and T = 3.5 K, larger than most reported transition metal-based complexes and commercial gadolinium gallium garnet (Gd3Ga5O12) (-Δ Smmax = 38.4 J kg-1 K-1 with Δ H = 7 T). From 1, 2/3, to 4, an enhancement of the magnetic ordering temperature is observable due to the increasing strength of FO interactions between CrIII and MII ions. Our work provides a successful instance to modulate the strength of FO exchange via analyzing the orthogonal magnetic orbitals of heterometallic ions.
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Affiliation(s)
- Jiong-Peng Zhao
- School of Chemistry and Chemical Engineering, TKL of Organic Solar Cells and Photochemical Conversion , Tianjin University of Technology , Tianjin 300384 , P. R. China
| | - Song-De Han
- College of Chemistry and Chemical Engineering , Qingdao University , Qingdao , Shandong 266071 , P. R. China
| | - Fu-Chen Liu
- School of Chemistry and Chemical Engineering, TKL of Organic Solar Cells and Photochemical Conversion , Tianjin University of Technology , Tianjin 300384 , P. R. China
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13
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Canadillas-Delgado L, Mazzuca L, Fabelo O, Rodriguez-Velamazan JA, Rodriguez-Carvajal J. Incommensurate structures of the [CH 3NH 3][Co(COOH) 3] compound. IUCRJ 2019; 6:105-115. [PMID: 30713708 PMCID: PMC6327183 DOI: 10.1107/s2052252518015026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 10/23/2018] [Indexed: 06/09/2023]
Abstract
The present article is devoted to the characterization of the structural phase transitions of the [CH3NH3][Co(COOH)3] (1) perovskite-like metal-organic compound through variable-temperature single-crystal neutron diffraction. At room temperature, compound 1 crystallizes in the orthorhombic space group Pnma (phase I). A decrease in temperature gives rise to a first phase transition from the space group Pnma to an incommensurate phase (phase II) at approximately 128 K. At about 96 K, this incommensurate phase evolves into a second phase with a sharp change in the modulation vector (phase III). At lower temperatures (ca 78 K), the crystal structure again becomes commensurate and can be described in the monoclinic space group P21/n (phase IV). Although phases I and IV have been reported previously [Boča et al. (2004). Acta Cryst. C60, m631-m633; Gómez-Aguirre et al. (2016). J. Am. Chem. Soc. 138, 1122-1125; Mazzuca et al. (2018). Chem. Eur. J. 24, 388-399], phases III and IV corresponding to the Pnma(00γ)0s0 space group have not yet been described. These phase transitions involve not only the occurrence of small distortions in the three-dimensional anionic [Co(HCOO)3]- framework, but also the reorganization of the [CH3NH3]+ counter-ions in the cavities of the structure, which gives rise to an alteration of the hydrogen-bonded network, modifying the electrical properties of compound 1.
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Affiliation(s)
- Laura Canadillas-Delgado
- Diffraction Group, Institut Laue Langevin, 71, avenue des Martyrs, Grenoble 38042, France
- Centro Universitario de la Defensa de Zaragoza, Crtra. Huesca s/n, Zaragoza 50090, Spain
| | - Lidia Mazzuca
- Diffraction Group, Institut Laue Langevin, 71, avenue des Martyrs, Grenoble 38042, France
| | - Oscar Fabelo
- Diffraction Group, Institut Laue Langevin, 71, avenue des Martyrs, Grenoble 38042, France
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Wang K, Xiong JB, Xia B, Wang QL, Tong YZ, Ma Y, Wang ZM, Gao S. Alkylamine-Templated Niccolite Frameworks of [GaIIIMII(HCOO)6]− (M = Fe, Ni): Structure, Magnetism, and Dielectricity. Inorg Chem 2018. [DOI: 10.1021/acs.inorgchem.8b00124] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kai Wang
- College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, People’s Republic of China
| | - Jian-Bo Xiong
- College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, People’s Republic of China
| | - Bin Xia
- College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, People’s Republic of China
| | - Qing-Lun Wang
- College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, People’s Republic of China
| | - Yu-Zhang Tong
- College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, People’s Republic of China
| | - Yue Ma
- College of Chemistry, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin 300071, People’s Republic of China
| | - Zhe-Ming Wang
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
| | - Song Gao
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China
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15
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Mączka M, Kucharska E, Gągor A, Pikul A, Hanuza J. Synthesis, magnetic and vibrational properties of two novel mixed-valence iron(II)-iron(III) formate frameworks. J SOLID STATE CHEM 2018. [DOI: 10.1016/j.jssc.2017.10.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Liu S, Wang BW, Wang ZM, Gao S. Magnetic layered perovskites of [CH3C(NH2)2]2[M(HCOO)4] (M = Co2+ and Ni2+): synthesis, structures and properties. Dalton Trans 2018; 47:11925-11933. [DOI: 10.1039/c8dt01729h] [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
Two layered perovskites of the formula [CH3C(NH2)2]2[M(HCOO)4] (M = Co and Ni) exhibit anisotropic thermal expansion behavior and weak ferromagnetism.
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Affiliation(s)
- Shu Liu
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
| | - Bing-Wu Wang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
| | - Zhe-Ming Wang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
| | - Song Gao
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Rare Earth Materials Chemistry and Applications
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
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