1D Spin‐Crossover Networks Containing a FeII(1, 2, 3‐triazol‐1‐yl)4(CH3CN)2‐Type Core. Issue 5 (15th November 2012)

• Record Type: Journal Article
• Authors: Białońska, Agata; Bronisz, Robert; Baranowski, Łukasz
• Other Names: Murray Keith S. sponsoringEditor.; Oshio Hiroki sponsoringEditor.; Real Jose Antonio sponsoringEditor.
• Is Part Of: European journal of inorganic chemistry. Issue 5/6(2013)
• Page Start: 720
• Page End: 724
• Publication Date: 2012-11-15
• Subjects: Iron -- N ligands -- Spin crossover -- Coordination modes; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201201115
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract: Bis(1, 2, 3‐triazol‐1‐yl)methane (mbtr) was used to prepare 1D networks in which neighboring iron(II) ions are tethered by two semiflexible ligand molecules. [Fe(mbtr)2 (CH3 CN)2 ]X2 · 2CH3 CN (X = BF4 –, ClO4 – ) systems represent unique example of complexes that are based on monosubstituted 1, 2, 3‐triazoles, in which four 1, 2, 3‐triazole rings and two axially coordinated nitrile molecules form the first coordination sphere. Single‐crystal X‐ray diffraction and magnetic studies revealed that, in addition to homoleptic [Fe(1, 2, 3‐triazol)6 ]‐type core systems, complexes possessing the Fe(1, 2, 3‐triazolyl)4 (CH3 CN)2 ‐type core also exhibit thermally induced spin crossover. Abstract : Bis(1, 2, 3‐triazol‐1‐yl)methane (mbtr) was used to prepare 1D networks in which neighboring iron(II) ions are tethered by two semiflexible ligand molecules. The new Fe(1, 2, 3‐triazolyl)4 (CH3 CN)2 ‐type core based complexes exhibit thermally induced spin crossover. The ligand possesses the shortest possible alkyl spacer and shows remarkable elasticity triggered by a high spin [lrarr2] low spin transition.