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Agafonov MA, Alexandrov EV, Artyukhova NA, Bekmukhamedov GE, Blatov VA, Butova VV, Gayfulin YM, Garibyan AA, Gafurov ZN, Gorbunova YG, Gordeeva LG, Gruzdev MS, Gusev AN, Denisov GL, Dybtsev DN, Enakieva YY, Kagilev AA, Kantyukov AO, Kiskin MA, Kovalenko KA, Kolker AM, Kolokolov DI, Litvinova YM, Lysova AA, Maksimchuk NV, Mironov YV, Nelyubina YV, Novikov VV, Ovcharenko VI, Piskunov AV, Polyukhov DM, Polyakov VA, Ponomareva VG, Poryvaev AS, Romanenko GV, Soldatov AV, Solovyeva MV, Stepanov AG, Terekhova IV, Trofimova OY, Fedin VP, Fedin MV, Kholdeeva OA, Tsivadze AY, Chervonova UV, Cherevko AI, Shul′gin VF, Shutova ES, Yakhvarov DG. METAL-ORGANIC FRAMEWORKS IN RUSSIA: FROM THE SYNTHESIS AND STRUCTURE TO FUNCTIONAL PROPERTIES AND MATERIALS. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622050018] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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The Branched Schiff Base Cationic Complexes of Iron(III) with Different Counter-Ions. Symmetry (Basel) 2022. [DOI: 10.3390/sym14061140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The Fe(III) complexes of branched asymmetric dendrimers were obtained by a one-step reaction as the second-generation architectures. Mesomorphic behavior was found for complexes with PF6− and BF4− counter-ions. To obtain knowledge about the existence of HS and LS fractions of iron(III) ion and their evolution with temperature, EPR methods were used. It was demonstrated that compounds contain one low-spin (LS, S = 1/2) and two HS-spin (HS, S = 5/2) of Fe(III) centers and are packed into two magnetic sub-lattices. A floating layers of Fe(III) complexes and Langmuir–Blodgett films on their base were formed and investigated in the presence of a magnetic field.
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Vorobeva V, Starichenko D, Gruzdev M, Chervonova U, Zaripov R, Korolev A. Magnetic properties of the mononuclear iron (III) complexes with biphenyl‐disubstituted Schiff base ligand: EPR and SQUID study. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Valerya Vorobeva
- Department of Chemical Physics, Zavoisky Physical‐Technical Institute, FRC Kazan Scientific Center of Russian Academy of Sciences Kazan Russian Federation
| | - Denis Starichenko
- Department of Nanospintronics, Electrical Phenomena Laboratory, M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences Ekaterinburg Russian Federation
| | - Matvey Gruzdev
- Laboratory of Structure and dynamics of molecular and ion‐molecular solutions, G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences Ivanovo Russian Federation
| | - Ulyana Chervonova
- Laboratory of Structure and dynamics of molecular and ion‐molecular solutions, G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences Ivanovo Russian Federation
| | - Ruslan Zaripov
- Department of Chemical Physics, Zavoisky Physical‐Technical Institute, FRC Kazan Scientific Center of Russian Academy of Sciences Kazan Russian Federation
| | - Aleksandr Korolev
- Department of magnetic measurements, M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences Ekaterinburg Russian Federation
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Enriquez-Cabrera A, Rapakousiou A, Piedrahita Bello M, Molnár G, Salmon L, Bousseksou A. Spin crossover polymer composites, polymers and related soft materials. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213396] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Pogány L, Moncol J, Pavlik J, Mazúr M, Šalitroš I. High-Spin Mononuclear Iron(III) Complexes with Pentadentate Schiff Base Ligands: Structural Analysis and Magnetic Properties. Chempluschem 2020; 84:358-367. [PMID: 31939215 DOI: 10.1002/cplu.201800658] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 03/07/2019] [Indexed: 11/08/2022]
Abstract
Various substituted 2-hydroxybenzophenones were combined with aliphatic linear triamines to form pentadentate Schiff base ligands. Twelve new iron(III) complexes with the general formula [Fe(Ln )X].mCH3 CN (n=1-10; X=N3 - , NCS- or NCSe- ; m=0-2) have been synthesized, and spectrally as well as structurally characterized. The structural analysis revealed a notable dependence of coordination polyhedra deformation as well as the spatial configuration of donor atoms on the length and symmetry of the Schiff base ligands. The magnetic properties of the compounds were investigated and the permanent high-spin state (S=5/2) for all reported compounds was established, and allowed calculation of zero-field-splitting parameters as well as coupling constants, which were further confirmed with DFT calculations. The solid-state EPR spectra were recorded at 293 K and 98 K, and in accordance with the magnetic measurements, showed a high-spin state in the measured temperature range.
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Affiliation(s)
- Lukáš Pogány
- Department of Inorganic Chemistry Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Bratislava, 81237, Slovakia
| | - Ján Moncol
- Department of Inorganic Chemistry Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Bratislava, 81237, Slovakia
| | - Ján Pavlik
- Department of Inorganic Chemistry Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Bratislava, 81237, Slovakia
| | - Milan Mazúr
- Department of Physical Chemistry Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Bratislava, 81237, Slovakia
| | - Ivan Šalitroš
- Department of Inorganic Chemistry Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Bratislava, 81237, Slovakia.,Central European Institute of Technology, Brno University of Technology, Purkynova 123, 612 00 Brno, Czech Republic
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Dey B, Roy S, Titiš J, Boča R, Bera SP, Mondal A, Konar S. Above Room Temperature Spin Transition in Thermally Stable Mononuclear Fe(III) Complexes. Inorg Chem 2019; 58:1134-1146. [DOI: 10.1021/acs.inorgchem.8b02405] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Bijoy Dey
- Department of Chemistry, IISER Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India
| | - Subhadip Roy
- Department of Chemistry, IISER Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India
| | - Ján Titiš
- Department of Chemistry, Faculty of Natural Sciences, University of SS Cyril and Methodius, 917 01 Trnava, Slovakia
| | - Roman Boča
- Department of Chemistry, Faculty of Natural Sciences, University of SS Cyril and Methodius, 917 01 Trnava, Slovakia
| | - Siba Prasad Bera
- Department of Chemistry, IISER Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India
| | - Arpan Mondal
- Department of Chemistry, IISER Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India
| | - Sanjit Konar
- Department of Chemistry, IISER Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, Madhya Pradesh, India
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Pogány L, Brachňaková B, Masárová P, Moncol J, Pavlik J, Gál M, Mazúr M, Herchel R, Nemec I, Šalitroš I. Impact of the Schiff base ligand substituents on the solid state and solution properties of eleven iron(iii) complexes. NEW J CHEM 2019. [DOI: 10.1039/c9nj03087e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A series of novel iron(iii)-Schiff base complexes have been prepared and structurally characterised. Their stereochemical, magnetic and redox properties were correlated with the molecular design of the corresponding N3O2-pentadentate Schiff base ligand.
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Pogány L, Brachňaková B, Moncol J, Pavlik J, Nemec I, Trávníček Z, Mazúr M, Bučinský L, Suchánek L, Šalitroš I. Impact of Substituent Variation on the Presence of Thermal Spin Crossover in a Series of Mononuclear Iron(III) Schiff Base Complexes with Terminal Pseudohalido Co-ligands. Chemistry 2017; 24:5191-5203. [DOI: 10.1002/chem.201704546] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Lukáš Pogány
- Department of Inorganic Chemistry, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Bratislava 81237 Slovakia
| | - Barbora Brachňaková
- Department of Inorganic Chemistry, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Bratislava 81237 Slovakia
| | - Ján Moncol
- Department of Inorganic Chemistry, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Bratislava 81237 Slovakia
| | - Ján Pavlik
- Department of Inorganic Chemistry, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Bratislava 81237 Slovakia
| | - Ivan Nemec
- Department of Inorganic Chemistry, Regional Centre of Advanced Technologies and Materials, Faculty of Science; Palacký University; 17. Listopadu 12 771 46 Olomouc Czech Republic
| | - Zdeněk Trávníček
- Department of Inorganic Chemistry, Regional Centre of Advanced Technologies and Materials, Faculty of Science; Palacký University; 17. Listopadu 12 771 46 Olomouc Czech Republic
| | - Milan Mazúr
- Department of Physical Chemistry, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Bratislava 81237 Slovakia
| | - Lukáš Bučinský
- Department of Chemical Physics, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Bratislava 81237 Slovakia
| | - Lubomír Suchánek
- Department of Chemical Physics, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Bratislava 81237 Slovakia
| | - Ivan Šalitroš
- Department of Inorganic Chemistry, Faculty of Chemical and Food Technology; Slovak University of Technology in Bratislava; Bratislava 81237 Slovakia
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Domracheva N, Vorobeva V, Ovcharenko V, Bogomyakov A, Zueva E, Gruzdev M, Chervonova U, Kolker A. Counterion effect on the spin-transition properties of the second generation iron(III) dendrimeric complexes. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.02.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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