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Feng WB, Xu W, Duan HB, Zhang H. Multi-step phase transition crystal with dielectric constant bistability and temperature-dependent conductivity. RSC Adv 2022; 12:32475-32479. [PMID: 36425677 PMCID: PMC9661182 DOI: 10.1039/d2ra05947a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 10/31/2022] [Indexed: 09/08/2024] Open
Abstract
Here, we report the crystal structures, phase transitions, and thermal, dielectric, and conducting properties of an ion-pair compound [C4-bmim][Ni(mnt)2] (1). 1 undergoes a three-step phase transition with four phases before melting. A two-step dielectric constant bistability is also realized by the structural phase transition in 1 occurring among phases I, II, and III, which is due to the in-plane oscillations of the alkyl chain and crystal-to-mesophase transition, respectively. Moreover, 1 exhibits rare temperature-dependent conducting properties accompanying structural phase transitions, and conductivity is very high with 0.00186 S cm-1 at 413 K. The conduction properties of phase III (mesophase) arise from the dipole molecular motion.
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Affiliation(s)
- W B Feng
- School of Environmental Science, Nanjing Xiaozhuang University Nanjing 211171 P.R. China
| | - W Xu
- Department of Chemistry, Huangshan University Huangshan 245041 P.R. China
| | - H B Duan
- School of Environmental Science, Nanjing Xiaozhuang University Nanjing 211171 P.R. China
| | - H Zhang
- School of Environmental Science, Nanjing Xiaozhuang University Nanjing 211171 P.R. China
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2
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Levason W, Pugh D, Reid G. Imidazolium-based ionic liquids with large weakly coordinating anions. NEW J CHEM 2017. [DOI: 10.1039/c6nj03674k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An investigation into the intramolecular interactions in a series of imidazolium salts with weakly coordinating anions reveals that it is possible to control the strength and location of hydrogen bonding by varying the substituents on the imidazolium cation.
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Affiliation(s)
| | - David Pugh
- Chemistry
- University of Southampton
- Southampton
- UK
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3
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Horeglad P, Cybularczyk M, Trzaskowski B, Żukowska GZ, Dranka M, Zachara J. Dialkylgallium Alkoxides Stabilized with N-Heterocyclic Carbenes: Opportunities and Limitations for the Controlled and Stereoselective Polymerization of rac-Lactide. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00071] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Paweł Horeglad
- Centre
of New Technologies, University of Warsaw, Banacha 2c, 02-097 Warsaw, Poland
| | - Martyna Cybularczyk
- Centre
of New Technologies, University of Warsaw, Banacha 2c, 02-097 Warsaw, Poland
- Faculty
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Bartosz Trzaskowski
- Centre
of New Technologies, University of Warsaw, Banacha 2c, 02-097 Warsaw, Poland
| | - Grażyna Zofia Żukowska
- Faculty
of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Maciej Dranka
- Faculty
of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Janusz Zachara
- Faculty
of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
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4
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Moritz R, Wagner M, Schollmeyer D, Baumgarten M, Müllen K. Hydrophobic Encapsulated Phosphonium Salts-Synthesis of Weakly Coordinating Cations and their Application in Wittig Reactions. Chemistry 2015; 21:9119-25. [DOI: 10.1002/chem.201406370] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Indexed: 11/12/2022]
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5
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Böhrer H, Trapp N, Himmel D, Schleep M, Krossing I. From unsuccessful H2-activation with FLPs containing B(Ohfip)3 to a systematic evaluation of the Lewis acidity of 33 Lewis acids based on fluoride, chloride, hydride and methyl ion affinities. Dalton Trans 2015; 44:7489-99. [DOI: 10.1039/c4dt02822h] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
From hard to soft: The ion affinities of a large set of 33 Lewis acids towards hard and soft bases were examined with a unified isodesmic approach.
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Affiliation(s)
- Hannes Böhrer
- Albert-Ludwigs-Universität Freiburg
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF)
- 79104 Freiburg
- Germany
| | - Nils Trapp
- Albert-Ludwigs-Universität Freiburg
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF)
- 79104 Freiburg
- Germany
| | - Daniel Himmel
- Albert-Ludwigs-Universität Freiburg
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF)
- 79104 Freiburg
- Germany
| | - Mario Schleep
- Albert-Ludwigs-Universität Freiburg
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF)
- 79104 Freiburg
- Germany
| | - Ingo Krossing
- Albert-Ludwigs-Universität Freiburg
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF)
- 79104 Freiburg
- Germany
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6
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Hammer BAG, Moritz R, Stangenberg R, Baumgarten M, Müllen K. The polar side of polyphenylene dendrimers. Chem Soc Rev 2015; 44:4072-90. [DOI: 10.1039/c4cs00245h] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The site-specific functionalization of poly(phenylene) dendrimers can produce macromolecules with a range of different polarities.
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Affiliation(s)
| | - Ralf Moritz
- Max-Planck-Institut für Polymerforschung
- 55128 Mainz
- Germany
| | | | | | - Klaus Müllen
- Max-Planck-Institut für Polymerforschung
- 55128 Mainz
- Germany
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7
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Lund H, Harloff J, Schulz A, Villinger A. Synthesis and Structure of Ionic Liquids Containing the [Al(OC6H4CN)4]-Anion. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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8
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Türp D, Nguyen TTT, Baumgarten M, Müllen K. Uniquely versatile: nano-site defined materials based on polyphenylene dendrimers. NEW J CHEM 2012. [DOI: 10.1039/c1nj20449a] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Türp D, Wagner M, Enkelmann V, Müllen K. Synthesis of Nanometer-Sized, Rigid, and Hydrophobic Anions. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201007070] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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10
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Türp D, Wagner M, Enkelmann V, Müllen K. Synthesis of Nanometer-Sized, Rigid, and Hydrophobic Anions. Angew Chem Int Ed Engl 2011; 50:4962-5. [DOI: 10.1002/anie.201007070] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2010] [Indexed: 11/07/2022]
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11
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Anodic oxidation of organometallic sandwich complexes using [Al(OC(CF3)3)4]− or [AsF6]− as the supporting electrolyte anion. J Fluor Chem 2010. [DOI: 10.1016/j.jfluchem.2010.03.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Lipping L, Koppel I, Koppel IA, Kolomeitsev A, Röschenthaler GV, Leito I. Polytrifluoromethylation versus polyfluorination of the isomers of Kekulé benzene and phenol: a theoretical study. J Org Chem 2010; 75:6436-44. [PMID: 20806982 DOI: 10.1021/jo101061u] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The study of the polyfluorination and polytrifluoromethylation effects on electronic structure and intrinsic acidities has been performed using DFT B3LYP and NBO calculations for the valence isomers of benzene and phenol, i.e., the structures of prismane, benzvalene, Kekulé, and Dewar systems. Also the isodesmic reaction analysis approach to estimate the effects of the substituents on the acidity of the compounds has been used. Although in some systems the additivity of fluorine substituents was more than 100%, the acidifying effects of the fluorine substituents were comparable to that of the CF(3) in only one case. Isodesmic reaction analysis of substituent effects shows that steric effects of poly-CF(3) substitution in the alicyclic cage compounds are significantly smaller. The relative thermodynamic stabilities of the valence isomers of Kekulé benzene were significantly lower than that of the aromatic cycle. The introduction of fluorine substituents often destabilized the compounds even further. Out of the fluorinated hydroxy derivatives of prismane, Dewar benzene, and benzvalene, not all are predicted to be stable enough to be able to undergo a reversible protonation-deprotonation process. In the case of several hydroxy derivatives deprotonation is accompanied by the rupture of a C(α)-C(β) bond and in some cases by the rearrangement to the corresponding phenolate anion. The isomerization of benzene derivatives resulted in more cases where the acidities increased compared with the respective phenol derivatives. The only hydroxy compound with significantly higher acidity than the respective phenol was pentafluorinated 2-OH-Dewar benzene, which was expected to rival the gas-phase acidity of perfluoro-1-adamantanol, currently the most acidic experimentally measured perfluorinated alcohol.
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Affiliation(s)
- Lauri Lipping
- Institute of Chemistry, University of Tartu, 14a Ravila Street, 50411 Tartu, Estonia.
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13
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Bulut S, Klose P, Huang MM, Weingärtner H, Dyson PJ, Laurenczy G, Friedrich C, Menz J, Kümmerer K, Krossing I. Synthesis of Room-Temperature Ionic Liquids with the Weakly Coordinating [Al(ORF)4]−Anion (RF=C(H)(CF3)2) and the Determination of Their Principal Physical Properties. Chemistry 2010; 16:13139-54. [DOI: 10.1002/chem.201000982] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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14
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Huang MM, Bulut S, Krossing I, Weingärtner H. Communication: Are hydrodynamic models suited for describing the reorientational dynamics of ions in ionic liquids? A case study of methylimidazolium tetra(hexafluoroisopropoxy)aluminates. J Chem Phys 2010; 133:101101. [DOI: 10.1063/1.3478221] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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15
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Preiss U, Bulut S, Krossing I. In Silico Prediction of the Melting Points of Ionic Liquids from Thermodynamic Considerations: A Case Study on 67 Salts with a Melting Point Range of 337 °C. J Phys Chem B 2010; 114:11133-40. [DOI: 10.1021/jp104679m] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ulrich Preiss
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF), Albert-Ludwigs Universität Freiburg, Albertstrasse 21, 79104 Freiburg, Germany
| | - Safak Bulut
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF), Albert-Ludwigs Universität Freiburg, Albertstrasse 21, 79104 Freiburg, Germany
| | - Ingo Krossing
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF), Albert-Ludwigs Universität Freiburg, Albertstrasse 21, 79104 Freiburg, Germany
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16
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Siu PW, Gates DP. HL2[P(1,2-O2C6H4)3] (L = DMSO or DMF): A Convenient Proton Source with a Weakly Basic Phosphorus(V) Anion. Organometallics 2009. [DOI: 10.1021/om9003187] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Paul W. Siu
- Department of Chemistry, University of British Columbia, Vancouver, 2036 Main Mall, British Columbia, Canada V6T 1Z1
| | - Derek P. Gates
- Department of Chemistry, University of British Columbia, Vancouver, 2036 Main Mall, British Columbia, Canada V6T 1Z1
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17
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Raabe I, Wagner K, Guttsche K, Wang M, Grätzel M, Santiso-Quiñones G, Krossing I. Tetraalkylammonium Salts of Weakly Coordinating Aluminates: Ionic Liquids, Materials for Electrochemical Applications and Useful Compounds for Anion Investigation. Chemistry 2009; 15:1966-76. [DOI: 10.1002/chem.200800417] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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Tang S, Babai A, Mudring AV. Europium-based ionic liquids as luminescent soft materials. Angew Chem Int Ed Engl 2008; 47:7631-4. [PMID: 18759234 DOI: 10.1002/anie.200801159] [Citation(s) in RCA: 187] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sifu Tang
- Anorganische Chemie I-Festkörperchemie und Materialien, Ruhr-Universität Bochum, 44780 Bochum, Germany
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20
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Tang S, Babai A, Mudring AV. Europium-basierte ionische Flüssigkeiten als lumineszierende weiche Materialien. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200801159] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Fluorine‐Containing Ionic Liquids fromN‐Alkylpyrrolidine andN‐Methylpiperidine and Fluorinated Acetylacetones: Low Melting Points and Low Viscosities. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200800448] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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Li Y, Kühn FE. A straightforward preparation of acetonitrile ligated silver perfluoroalkoxy aluminate [Ag(NCCH3)4][Al{OC(CF3)3}4]. J Organomet Chem 2008. [DOI: 10.1016/j.jorganchem.2008.04.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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23
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