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Synthesis and Structural Characterization of Some Potassium Complexes of Some Bis(phenolate) Ligands and Some Novel Heterobimetallic Binuclear Arrays Formed with Trivalent Lanthanoid Ions
Author(s) -
Binda Pascal I.,
Delbridge Ewan E.,
Dugah Divine T.,
Skelton Brian W.,
White Allan H.
Publication year - 2008
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200700442
Subject(s) - chemistry , lanthanide , ligand (biochemistry) , ytterbium , protonation , medicinal chemistry , potassium , dimethoxyethane , stereochemistry , schiff base , crystallography , inorganic chemistry , ion , organic chemistry , biochemistry , physics , receptor , optoelectronics , electrode , doping , electrolyte
The structural characterizations of the potassium complexes of a pair of dianionic bis(phenolate) ligands, {L R = [ − OC 6 H 2 (2,4‐Bu t )(6‐CH 2 )] 2 NCH 2 CH 2 R} R = NMe 2 , OMe, crystallized from 1,2,‐dimethoxyethane (DME) are recorded, showing them to take the binuclear form [K 2 L R (DME) 3 ]. A pair of neutral binuclear heterobimetallic isotypic complexes are defined with ytterbium(III), with phenol, as sodium salts, of the form [Yb(L R )(OPh) 2 Na(DME)(HOPh)], and a further array with samarium(III), of the (partially protonated) form [Sm(L OMe ) 2 Na(OH 2 )]. A further complex, [Na(DME) 3 ][Yb(*L py ) 2 ], results from an unusual ligand reduction by an ytterbium(II) species to give a new dianionic Schiff base ligand which is coordinated to ytterbium(III) {*L py = − OC 6 H 2 (2,4‐Bu t )(6‐CH=N‐CH‐2‐C 6 H 4 N)}.