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The analysis of the \u03bceff(T) dependence in the temperature range of 80\u2013600 K have shown that all the obtained complexes exhibit a high-temperature spin crossover 1A1 \u2194 5T2.<\/jats:p>","DOI":"10.3390\/molecules27165093","type":"journal-article","created":{"date-parts":[[2022,8,10]],"date-time":"2022-08-10T09:46:24Z","timestamp":1660124784000},"page":"5093","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["High-Temperature Spin Crossover in Iron(II) Complexes with 2,6-Bis(1H-imidazol-2-yl)pyridine"],"prefix":"10.3390","volume":"27","author":[{"given":"Ludmila G.","family":"Lavrenova","sequence":"first","affiliation":[{"name":"Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Academic Lavrentyev Avenue 3, 630090 Novosibirsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2366-6708","authenticated-orcid":false,"given":"Olga G.","family":"Shakirova","sequence":"additional","affiliation":[{"name":"Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Academic Lavrentyev Avenue 3, 630090 Novosibirsk, Russia"},{"name":"Department of Chemistry and Chemical Technologies, Faculty of Machinery and Chemical Technologies, Federal State Budget Institution of Higher Education, Komsomolsk-na-Amure State University, Lenin Avenue 27, 681013 Komsomolsk-on-Amur, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7735-0285","authenticated-orcid":false,"given":"Evgeniy V.","family":"Korotaev","sequence":"additional","affiliation":[{"name":"Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Academic Lavrentyev Avenue 3, 630090 Novosibirsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5276-5839","authenticated-orcid":false,"given":"Svetlana V.","family":"Trubina","sequence":"additional","affiliation":[{"name":"Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Academic Lavrentyev Avenue 3, 630090 Novosibirsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexsei Ya.","family":"Tikhonov","sequence":"additional","affiliation":[{"name":"N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry Siberian Branch, Russian Academy of Sciences, Academic Lavrentyev Avenue 9, 630090 Novosibirsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Irina A.","family":"Os\u2019kina","sequence":"additional","affiliation":[{"name":"N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry Siberian Branch, Russian Academy of Sciences, Academic Lavrentyev Avenue 9, 630090 Novosibirsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sergey A.","family":"Petrov","sequence":"additional","affiliation":[{"name":"Institute of Solid State Chemistry, Siberian Branch, Russian Academy of Sciences, Kutateladze Street 18, 630128 Novosibirsk, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4475-124X","authenticated-orcid":false,"given":"Konstantin Yu.","family":"Zhizhin","sequence":"additional","affiliation":[{"name":"Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii Avenue 31, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nikolay T.","family":"Kuznetsov","sequence":"additional","affiliation":[{"name":"Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii Avenue 31, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Gutlich, P., and Goodwin, H. 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Rev."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"24","DOI":"10.1016\/j.ccr.2018.02.001","article-title":"Spin crossover in homoleptic Fe(II) imidazolylimine complexes","volume":"362","author":"Scott","year":"2018","journal-title":"Coord. Chem. Rev."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"176","DOI":"10.1016\/j.ccr.2017.03.024","article-title":"Emerging trends in spin crossover (SCO) based functional materials and devices","volume":"346","author":"Kumar","year":"2017","journal-title":"Coord. Chem. Rev."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"1142","DOI":"10.1007\/s11172-018-2195-3","article-title":"Spin crossover in homo- and heteroligand iron(II) complexes with tris(pyrazol-1-yl)methane derivatives","volume":"67","author":"Lavrenova","year":"2018","journal-title":"Rus. Chem. Bull."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Shakirova, O.G., and Lavrenova, L.G. (2020). Spin crossover in new iron(II) coordination compounds with tris(pyrazol-1-yl)methane. Crystals, 10.","DOI":"10.3390\/cryst10090843"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"718","DOI":"10.1002\/adma.19920041103","article-title":"Spin transition molecular materials for displays and data recording","volume":"4","author":"Kahn","year":"1992","journal-title":"Adv. Mater."},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Gamez, P., Costa, J.S., Quesada, M., and Arom\u00ed, G. (2009). Iron Spin-Crossover compounds: From fundamental studies to practical applications. Dalton Trans., 7845\u20137853.","DOI":"10.1039\/b908208e"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"7775","DOI":"10.1039\/C5TC90128F","article-title":"Spin-state switches in molecular materials chemistry","volume":"3","author":"Hayami","year":"2015","journal-title":"J. Mater. Chem. 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(1430552), European Patent, Available online: https:\/\/data.epo.org\/gpi\/EP1430552A1-MOLECULAR-MEMORY-AND-METHOD-FOR-MAKING-SAME."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"6001","DOI":"10.1039\/D0TC01532F","article-title":"4D printing with spin-crossover polymer composites","volume":"8","author":"Courson","year":"2020","journal-title":"J. Mater. Chem. C"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"4842","DOI":"10.1021\/jacs.9b13835","article-title":"Correlating mechanical sensitivity with spin transition in the explosive spin crossover complex [Fe(Htrz)3]n[ClO4]2n","volume":"142","author":"Nguyen","year":"2020","journal-title":"J. Am. Chem. Soc."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"9426","DOI":"10.1021\/jacs.8b00103","article-title":"Rhodamine 6G-labeled pyridyl aroylhydrazone Fe(II) complex exhibiting synergetic spin crossover and fluorescence","volume":"140","author":"Yuan","year":"2018","journal-title":"J. Am. Chem. Soc."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"6791","DOI":"10.1039\/C9SC02331C","article-title":"Interplay between spin-crossover and luminescence in a multifunctional single crystal iron(II) complex: Towards a new generation of molecular sensors","volume":"10","author":"Benaicha","year":"2019","journal-title":"Chem. Sci."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"290","DOI":"10.1016\/j.ccr.2010.09.010","article-title":"Fascinating variability in the chemistry and properties of 2,6-bis-(benzimidazol-2-yl)-pyridine and 2,6-bis-(benzthiazol-2-yl)-pyridine and their complexes","volume":"255","author":"Jameson","year":"2011","journal-title":"Coord. Chem. Rev."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1134\/S0036023620010106","article-title":"Spin crossover in new iron(II) complexes with 2,6-bis(benzimidazole-2-yl)pyridine","volume":"65","author":"Lavrenova","year":"2020","journal-title":"Rus. J. Inorg. Chem."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"5834","DOI":"10.1039\/D0NJ00474J","article-title":"Spin-crossover in iron(ii) coordination compounds with 2,6-bis(benzimidazol-2-yl)pyridine","volume":"44","author":"Ivanova","year":"2020","journal-title":"New J. Chem."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"1687","DOI":"10.1134\/S0036023620110078","article-title":"High-temperature spin crossover in complexes of iron(II) closo-borates with 2,6-bis(benzimidazol-2-yl)pyridine","volume":"65","author":"Ivanova","year":"2020","journal-title":"Russ. J. Inorg. Chem."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"120746","DOI":"10.1016\/j.ica.2021.120746","article-title":"Spin crossover in iron(II) complexes with new ligand 2,6-bis(4,5-dimethyl-1H-imidazole-2-yl)pyridine","volume":"532","author":"Ivanova","year":"2022","journal-title":"Inorg. Chim. Acta"},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Stupka, G., Gremaud, L., Bernardinelli, G., and Williams, A.F. (2004). Redox state switching of transition metals by deprotonation of the tridentate ligand 2,6-bis(imidazol-2-yl)pyridine. Dalton Trans., 407\u2013412.","DOI":"10.1039\/b313440g"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"513","DOI":"10.1016\/j.inoche.2005.03.010","article-title":"Tuning the redox properties of a 1-D supramolecular array via selective deprotonation of coordinated imidazoles around a Mn(II) center","volume":"8","author":"Hammes","year":"2005","journal-title":"Inorg. Chem. Commun."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"456","DOI":"10.1016\/j.ica.2017.06.073","article-title":"Synthesis, structural and magnetic characterization of a copper(II) complex of 2,6-di(1H-imidazol-2-yl)pyridine and its application in copper-mediated polymerization catalysis","volume":"466","author":"Arruda","year":"2017","journal-title":"Inorg. Chim. Acta"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"m572","DOI":"10.1107\/S1600536809014354","article-title":"[2,6-Bis(4,5-dihydro-1H-imidazol-2-yl)pyridine]dichloridomanganese(II)","volume":"65","author":"Ren","year":"2009","journal-title":"Acta Cryst. E"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"m1023","DOI":"10.1107\/S1600536809029195","article-title":"Bis[2,6-bis (4,5-dihydro-1H-imidazol-2-yl)pyridine]manganese(II) bis-(per-chlorate) acetonitrile solvate","volume":"65","author":"Shang","year":"2009","journal-title":"Acta Cryst. E"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"645","DOI":"10.1016\/j.tet.2007.11.009","article-title":"A simple and convenient one-pot method for the preparation of heteroaryl-2-imidazoles from nitriles","volume":"64","author":"Voss","year":"2008","journal-title":"Tetrahedron"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"81","DOI":"10.1002\/9780470132418.ch16","article-title":"Borane anions","volume":"10","author":"Miller","year":"1967","journal-title":"Inorg. Synth."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1016\/j.phpro.2016.11.005","article-title":"Synchrotron radiation research and application at VEPP-4","volume":"84","author":"Piminov","year":"2016","journal-title":"Phys. Procedia"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"209","DOI":"10.1088\/0022-3727\/34\/2\/309","article-title":"Extraction of the fine structure from x-ray absorption spectra","volume":"34","author":"Klementev","year":"2001","journal-title":"J. Phys. D Appl. Phys."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"143","DOI":"10.1088\/0022-3719\/17\/1\/019","article-title":"A rapid, exact curved-wave theory for EXAFS calculations","volume":"17","author":"Gurman","year":"1984","journal-title":"J. Phys. C Solid State Phys."},{"key":"ref_35","unstructured":"Nakamoto, K. (1986). Infrared and Raman Spectra of Inorganic and Coordination Compounds, John Wiley & Sons Inc."},{"key":"ref_36","unstructured":"Lever, A.B.P. (1985). Inorganic Electronic Spectroscopy, Elsevier. [2nd ed.]."},{"key":"ref_37","doi-asserted-by":"crossref","unstructured":"Hauser, A. (2004). Ligand Field Theoretical Considerations. Spin Crossover in Transition Metal Compounds I, Springer.","DOI":"10.1007\/b13528"},{"key":"ref_38","unstructured":"Sugano, S., Tanabe, Y., and Kamimura, H. (1970). Multiplets of Transition\u2014Metal ions in Crystals, Pure and Applied Physics."},{"key":"ref_39","unstructured":"Selwood, P.W. (1956). Magnetochemistry, Interscience Publishers."},{"key":"ref_40","unstructured":"Rakitin, Y.V., and Kalinnikov, V.T. (1994). Modern Magnetochemistry, Nauka."}],"container-title":["Molecules"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1420-3049\/27\/16\/5093\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T00:06:55Z","timestamp":1760141215000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1420-3049\/27\/16\/5093"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,8,10]]},"references-count":40,"journal-issue":{"issue":"16","published-online":{"date-parts":[[2022,8]]}},"alternative-id":["molecules27165093"],"URL":"https:\/\/doi.org\/10.3390\/molecules27165093","relation":{},"ISSN":["1420-3049"],"issn-type":[{"value":"1420-3049","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,8,10]]}}}