Synthesis and structural diversity of rare earth anthranilate complexes

Deacon, G.B., Forsyth, M., Junk, P.C., Leary, S.G. and Moxey, G.J. 2006, Synthesis and structural diversity of rare earth anthranilate complexes, Polyhedron, vol. 25, no. 2, pp. 379-386.

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Title Synthesis and structural diversity of rare earth anthranilate complexes
Author(s) Deacon, G.B.
Forsyth, M.
Junk, P.C.
Leary, S.G.
Moxey, G.J.
Journal name Polyhedron
Volume number 25
Issue number 2
Start page 379
End page 386
Publisher Pergamon - Elsevier
Place of publication London, England
Publication date 2006-01-23
ISSN 0277-5387
1873-3719
Keyword(s) rare earths
anthranilates
x-ray crystal structures
amino acids
Summary Four structural classes have been established for rare earth anthranilates, which have been prepared from the lanthanoid chloride or triflate and anthranilic acid (anthH) followed by pH adjustment to 4. [La(anth)3]n is a polymeric complex with nine coordinate lanthanum and bridging tridentate (O,O,O′) anthranilate ligands, whereas [Nd(anth)3(H2O)3] · 3H2O is monomeric with nine coordinate neodymium and solely chelating (O,O) anthranilate groups. Both chelating (O,O) and bridging bidentate (O,O′) ligands are observed in dimeric [Er2(anth)6(H2O)4] · 2H2O, in which erbium is eight coordinate and the water ligands are in a trans arrangement. A polymer is observed for [Yb(anth)3(H2O)]n with solely bridging bidentate (O,O′) ligands and seven coordination for ytterbium. The NH2 groups of the anthranilate ligands are not coordinated to the metal but is unusually involved in hydrogen-bond networks with water molecules for Ln = Er, Yb.
Language eng
Field of Research 039999 Chemical Sciences not elsewhere classified
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2005, Elsevier Ltd. All rights reserved.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30030101

Document type: Journal Article
Collection: Institute for Technology Research and Innovation
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