Synthesis and X-ray crystal structures of two novel dinuclear methoxo-bridged hexafluoropentanedionato Er(III) complexes with 1,10-phenanthroline and2,2 '-bipyridine

Authors
van Staveren, DR Haasnoot, JG Lanfredi, AMM Menzer, S Nieuwenhuizen, PJ Spek, AL Ugozzoli, F Reedijk, J
Citation
Dr. Van Staveren et al., Synthesis and X-ray crystal structures of two novel dinuclear methoxo-bridged hexafluoropentanedionato Er(III) complexes with 1,10-phenanthroline and2,2 '-bipyridine, INORG CHIM, 307(1-2), 2000, pp. 81-87
Citations number
45
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
INORGANICA CHIMICA ACTA
ISSN journal
00201693 → ACNP
Volume
307
Issue
1-2
Year of publication
2000
Pages
81 - 87
Database
ISI
SICI code
0020-1693(20000911)307:1-2<81:SAXCSO>2.0.ZU;2-U
Abstract
The reaction of Er(CF3SO3)(3) with 1,1,1,5,5,5-hexafluoropentane-2,4-dione (Hhfpd), CsOH . H2O and either 2,2'-bipyridine (bpy) or 1,10-phenanthroline (phen) in methanol yields the new dinuclear complexes [Er(hfpd)(2)(mu-OCH3 )(bpy)](2) (1), and [Er(hfpd)(2)(mu-OCH3)(phen)](2) (2). The X-ray crystal structures of complexes 1 and 2 show these compounds to consist of two Er(h fpd),(bpy) and Er(hfpd),(phen) subunits, respectively, bridged by two metho xo ligands. Each Er3+ ion is octacoordinated with a [ErO6N2] chromophore, w ith Er-O(CH3) distances of 2.23-2.24 Angstrom Er-O(hfpd) bond lengths of 2. 32-2.42 Angstrom and Er-N distances of 2.51-2.54 Angstrom. (C) 2000 Elsevie r Science S.A. All rights reserved.