Biphenyl bridged hexadentate N6-ligands – a rigid ligand backbone for Fe(ii) spin crossover complexes
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چکیده
منابع مشابه
Iron(II) complexes of tridentate indazolylpyridine ligands: enhanced spin-crossover hysteresis and ligand-based fluorescence.
Reaction of 2,6-difluoropyridine with 2 equiv of indazole and NaH at room temperature affords a mixture of 2,6-bis(indazol-1-yl)pyridine (1-bip), 2-(indazol-1-yl)-6-(indazol-2-yl)pyridine (1,2-bip), and 2,6-bis(indazol-2-yl)pyridine (2-bip), which can be separated by solvent extraction. A two-step procedure using the same conditions also affords both 2-(indazol-1-yl)-6-(pyrazol-1-yl)pyridine (1...
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We report the synthesis and characterisation of the new polytopic ligands, ddta (N,N-di(pyridin-2-yl)-4,6-di(1,4,7,10-tetraoxa-13-azacyclopentadecan-13-yl)-1,3,5-triazin-2-amine) and tptd (N(2),N(2),N(4),N(4)-tetra(pyridin-2-yl)-6-(1,4,7,10-tetraoxa-13-azacyclopentadecan-13-yl)-1,3,5-triazine-2,4-diamine). Each contains N-donor dipyridylamino binding sites as well as separate and distinct mono-...
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A series of four isostructural Fe(II)2 complexes, [(TPyA)2Fe2((X)L)](2+) (TPyA = tris(2-pyridylmethyl)amine; (X)L(2-) = doubly deprotonated form of 3,6-disubstituted-2,5-dianilino-1,4-benzoquinone; X = H, Br, Cl, and F), were synthesized to enable a systematic study of electronic effects on spin crossover behavior. Comparison of X-ray diffraction data for these complexes reveals the sole presen...
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Heteroleptic iron(III) complexes of formula [Fe(qsal-Cl)(thsa)] ̈nMeCN have been synthesized; [Fe(qsal-Cl)(thsa)] ̈MeCN, 1 and [Fe(qsal-Cl)(thsa)], 2. The latter can be obtained by slow evaporation of solutions of compound 1 under ambient conditions, a rare occurrence in nonporous compounds. 1 interestingly shows a unique magnetic profile over the de-solvation temperature range, 300-350 K, in the...
متن کاملCooperative Triazole Based Spin Crossover FeII Coordination Polymers
Narsimhulu Pittala1, Smail Triki1, Franck Thétiot1, Kamel Boukheddaden2, Guillaume Chastanet3, Mathieu Marchivie3 1Department Of Chemistry, UMR CNRS 6521, Université De Bretagne Occidentale (UBO), Brest, France, 2Groupe d\'étude de la matière condensée (GEMaC), Université de Versailles Saint-Quentin, Versailles, France, 3CNRS, Université Bordeaux, ICMCB, UPR 9048, Bordeaux, France E-mail: narsi...
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ژورنال
عنوان ژورنال: Dalton Trans.
سال: 2013
ISSN: 1477-9226,1477-9234
DOI: 10.1039/c2dt32451b