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Gajecki L, Sawicka B, Berg DJ, Oliver AG. Synthesis and Magnetic Studies of Two Neutral, Bis-Ligand Fe(II) Complexes Containing Carbazole- Bis(tetrazole) Ligands. Inorg Chem 2023. [PMID: 37478316 DOI: 10.1021/acs.inorgchem.3c01167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2023]
Abstract
Previously reported carbazole-bis(tetrazole) (CzTR) ligands (where R = iPr and CH2-2,4,6-C6H2Me3) were used to synthesize air-stable, six-coordinate, octahedral bis-ligand Fe(II) complexes (CzTR)2Fe. The synthesis and characterization of these complexes using 1H nuclear magnetic resonance (NMR), X-ray crystallography, Mössbauer spectroscopy, and density functional theory (DFT) calculations are reported. Analysis of the magnetic properties revealed that the isopropyl derivative displays thermally induced spin crossover (SCO) over a temperature range of 150-350 K. This transition appears as an abrupt two-step transition in the solid state but simplifies to a smooth one-step transition in solution. The two-step transition in the solid state has been postulated to be due to lattice and solvation effects. In contrast, the slightly bulkier substituted CH2-2,4,6-C6H2Me3 (CH2Mes) Fe complex displays dramatically different magnetic behavior with no SCO and magnetic data suggesting low-spin Fe(II) with a possible TIP contribution. DFT calculations support the postulate that the change in magnetic behavior is primarily due to the nature of the ligand substituents.
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Affiliation(s)
- Leah Gajecki
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, British Columbia, Canada V8W 3V6
| | - Barbara Sawicka
- Department of Mechanical Engineering, University of Victoria, P.O. Box 1700 STN CSC, Victoria, British Columbia, Canada V8W 2Y2
| | - David J Berg
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, British Columbia, Canada V8W 3V6
| | - Allen G Oliver
- Department of Chemistry & Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
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Samanta S, Zheng C, Gajecki L, Berg DJ, Oliver AG, Crosby T, Godin L, Sandhu J. Carbazolyl- bis(triazole) and Carbazolyl- bis(tetrazole) Complexes of Palladium(II) and Platinum(II). J COORD CHEM 2021. [DOI: 10.1080/00958972.2021.1882674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Samya Samanta
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
| | - Cameron Zheng
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
| | - Leah Gajecki
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
| | - David J. Berg
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
| | - Allen G. Oliver
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Tristan Crosby
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
| | - Logan Godin
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
| | - Jaylene Sandhu
- Department of Chemistry, University of Victoria, Victoria, BC, Canada
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Adonin SA, Usoltsev AN, Novikov AS, Kolesov BA, Fedin VP, Sokolov MN. One- and Two-Dimensional Iodine-Rich Iodobismuthate(III) Complexes: Structure, Optical Properties, and Features of Halogen Bonding in the Solid State. Inorg Chem 2020; 59:3290-3296. [PMID: 32037811 DOI: 10.1021/acs.inorgchem.9b03734] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Reactions of BiI3, I2, and iodide salts of two different pyridinum cations result in the formation of the novel iodine-rich iodobismuthates(III) (1,3-MePy)4{[Bi4I16](I2)} (1) and (1-MePy){[BiI4](I2)0.5) (2), where the halometalate anions are connected by diiodine linkers into one- or two-dimensional supramolecular structures. Both complexes reveal narrow optical band gaps and fairly high thermal stability, favoring their potential use in photovoltaic devices.
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Affiliation(s)
- Sergey A Adonin
- Nikolaev Institute of Inorganic Chemistry SB RAS, Lavrentieva St. 3, 630090 Novosibirsk, Russia.,Novosibirsk State University, Pirogova St. 3, 630090 Novosibirsk, Russia.,Tobolsk Industrial Institute (Branch of Tyumen Industrial Univeristy), Zony Vuzov 5, 626158 Tobolsk, Russia.,South Ural State University, Lenina St. 76, 454080 Chelyabinsk, Russia
| | - Andrey N Usoltsev
- Nikolaev Institute of Inorganic Chemistry SB RAS, Lavrentieva St. 3, 630090 Novosibirsk, Russia
| | - Alexander S Novikov
- Saint Petersburg State University, Institute of Chemistry, Universitetskaya Nab. 7-9, 199034, Saint Petersburg, Russia
| | - Boris A Kolesov
- Nikolaev Institute of Inorganic Chemistry SB RAS, Lavrentieva St. 3, 630090 Novosibirsk, Russia.,Novosibirsk State University, Pirogova St. 3, 630090 Novosibirsk, Russia
| | - Vladimir P Fedin
- Nikolaev Institute of Inorganic Chemistry SB RAS, Lavrentieva St. 3, 630090 Novosibirsk, Russia.,Novosibirsk State University, Pirogova St. 3, 630090 Novosibirsk, Russia
| | - Maxim N Sokolov
- Nikolaev Institute of Inorganic Chemistry SB RAS, Lavrentieva St. 3, 630090 Novosibirsk, Russia.,Novosibirsk State University, Pirogova St. 3, 630090 Novosibirsk, Russia
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Usoltsev AN, Adonin SA, Novikov AS, Abramov PA, Sokolov MN, Fedin VP. Chlorotellurate(iv) supramolecular associates with “trapped” Br2: features of non-covalent halogen⋯halogen interactions in crystalline phases. CrystEngComm 2020. [DOI: 10.1039/c9ce01820d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reactions of chlorotellurates(iv) and Br2 afford formation of supramolecular complexes Cat2{[TeCl6](Br2)} (Cat = Me3N+ (1), PyH+ (2), 4-MePyH+ (3) and 1-MePy+ (4)) where dibromine fragments are “trapped” by [TeCl6]3−via Br⋯Cl halogen bonding.
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Affiliation(s)
- Andrey N. Usoltsev
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
| | - Sergey A. Adonin
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | - Alexander S. Novikov
- Saint Petersburg State University
- Institute of Chemistry
- 199034 Saint Petersburg
- Russia
| | - Pavel A. Abramov
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | - Maxim N. Sokolov
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
| | - Vladimir P. Fedin
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russia
- Novosibirsk State University
- 630090 Novosibirsk
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