Premium
Direct Syntheses and Structural Novelty of Lanthanoid Aryloxides with Flexible Radial Arms
Author(s) -
Cole Marcus L.,
Deacon Glen B.,
Junk Peter C.,
Proctor Kathryn M.,
Scott Janet L.,
Strauss Christopher R.
Publication year - 2005
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200500530
Subject(s) - chemistry , lanthanide , europium , ytterbium , lanthanum , dimer , crystallography , supramolecular chemistry , lanthanide contraction , metal , crystal structure , stereochemistry , inorganic chemistry , organic chemistry , ion , physics , optoelectronics , doping
Direct treatment of excess lanthanum, europium or ytterbium metal with 2,6‐dibenzylphenol (HOdbp) at 150 °C afforded [La 2 (Odbp) 6 ], [Eu 2 (Odbp) 4 ] and [Yb(Odbp) 2 ] n , respectively, in high yields. Alternatively, treatment of Yb metal with excess HOdbp gave an ytterbium( III ) species [Yb 2 (Odbp) 6 ], similar to the lanthanum analogue. X‐ray crystal structures were obtained for [La 2 (Odbp) 6 ], [Eu 2 (Odbp) 4 ] and [Yb 2 (Odbp) 6 ]. [La 2 (Odbp) 6 ] and [Yb 2 (Odbp) 6 ] are pseudo‐centrosymmetric dimers with two terminal and four bridging Odbp – ligands and [Eu 2 (Odbp) 4 ] crystallizes as a centrosymmetric dimer with further organization in a polymeric form through supramolecular interactions. All three structurally characterized compounds achieve coordination saturation by Ln–π‐arene interactions. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)