Novel luminescent materials based on silica doped with an europium(III) complex of 2,6-dihydroxybenzoic acid - The crystal structure of [(Bu4N)-Bu-n](2)[Eu(2,6-Hdhb)(5)(H2O)(2)]

abstract

Novel luminescent materials were prepared by introducing a new Eu3+ complex of 2,6-dihydroxybenzoic acid (2,6-H(2)dhb) into a silica gel made by the sol-gel method. The crystal structure of the resulting complex [(Bu4N)-Bu-n](2)[Eu(2,6-Hdhb)(5)(H2O)(2)] was determined using single-crystal X-ray diffraction. The compound was further characterised using FTIR, FT-Raman and elemental analysis. Photoluminescence measurements were performed for the isolated Eu(III) 2,6-dihydroxybenzoate complex and also for the related silica composite material. (C) 2003 Elsevier B.V. All rights reserved.

keywords

DIHYDROXYBENZOIC ACIDS; IONS; DIHYDRATE; MATRIX

subject category

Chemistry; Materials Science; Metallurgy & Metallurgical Engineering

authors

Soares-Santos, PCR; Nogueira, HIS; Paz, FAA; Ferreira, RAS; Carlos, LD; Klinowski, J; Trindade, T

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