Synthesis and crystal structure of [(BU4N)-B-n][Er(pic)(4)] center dot 5.5H(2)O: a new infrared emitter

resumo

The new erbium(III) complex of picolinic acid (Hpic), ["Bu4N][Er(pic)(4)].5.5H(2)O, was synthesized and the crystal structure determined by single-crystal X-ray diffraction. The compound was further characterized using IR, Raman, H-1 NMR and elemental analysis. The picolinate ligands (pic(-)) are coordinated through N,O-chelation to the erbium cations, as shown by X-ray diffraction and spectroscopic results, leading to an eight coordinate complex. Photoluminescence measurements were performed for this compound which exhibits infrared emission. (C) 2003 Elsevier B.V. All rights reserved.

palavras-chave

ALPHA-PICOLINIC ACIDS; LN-N BONDS; SILVER SOL; COMPLEXES; SPECTROSCOPY; HEXAHYDRATE; LANTHANIDES; OXIDE

categoria

Chemistry

autores

Soares-Santos, PCR; Nogueira, HIS; Felix, V; Drew, MGB; Ferreira, RAS; Carlos, LD; Trindade, T

nossos autores

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