Boron Complexes with Chelating Anilido-Imine Ligands: Synthesis, Structures and Luminescent Properties

✍ Scribed by Yi Ren; Xiaoming Liu; Wei Gao; Hong Xia; Ling Ye; Ying Mu

• Publisher: John Wiley and Sons
• Year: 2007
• Tongue: English
• Weight: 204 KB
• Volume: 2007
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/ejic.200600841

✦ Synopsis

Abstract

Three new boron complexes with anilido‐imine ligands, ortho‐C~6~H~4~(NAr^1^)(CH=NAr^2^)BF~2~ [Ar^1^ = 2,6‐Et~2~C~6~H~3~, Ar^2^ = p‐MeC~6~H~4~ (3a); Ar^1^ = 2,6‐__i__Pr~2~C~6~H~3~, Ar^2^ = p‐MeC~6~H~4~ (3b); Ar^1^ = 2,6‐__i__Pr~2~C~6~H~3~, Ar^2^ = 2,6‐Me~2~C~6~H~3~ (3c)] were synthesized by the reaction of BF~3~(OEt~2~) with the lithium salt of the corresponding ligands. All complexes were characterized by ^1^H, ^11^B, ^13^C and ^19^F NMR spectroscopy, elemental analyses and mass spectrometry. The molecular structures of complexes 3a–3c were determined by X‐ray crystallography. DSC analysis of 3a–3c demonstrates their good thermal stability. Luminescent properties of the ligands and the complexes 3a–3c in solution and the solid state were studied. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)