A Bis(hexadentate) Biphenyl‐Based N 12 Ligand and Its Fe II Complexes

Autor:	Georg Teucher, Holm Petzold, Silvio Heider
Rok vydání:	2013
Předmět:	Inorganic Chemistry Steric effects Biphenyl chemistry.chemical_compound Crystallography 1h nmr spectroscopy Coordination sphere chemistry Octahedron Spin crossover Ligand Stereochemistry Metal ions in aqueous solution
Zdroj:	European Journal of Inorganic Chemistry. 2013:2382-2388
ISSN:	1099-0682 1434-1948
DOI:	10.1002/ejic.201201443
Popis:	The novel biphenyl-based ligand N,N′,N″,N″′-tetrakis(2,2′-bipyridin-6-ylmethyl)-4,4′-dimethyl-1,1′-biphenyl-2,2′,6,6′-tetramine (6) with 12 nitrogen donor atoms has been synthesized. Ligand 6 is able to host two metal ions in an octahedral coordination sphere. This was shown by the synthesis of the dinuclear iron(II) complex 5 ([Fe2(6)]4+). Furthermore, the corresponding mononuclear iron(II) complex 4 ([Fe(6)]2+), where one coordination site is free, was obtained. Both FeII complexes show spin-crossover behaviour, which was shown by 1H NMR spectroscopy and Evans' measurements. A comparison of the two complexes gives evidence of a sterically induced cooperative behaviour in the dinuclear complex 5.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0eb4f6c2faf627ab87fd76e47036b7ce https://doi.org/10.1002/ejic.201201443 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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