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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 25, Number 3
BKCSDE 25(3)
March 20, 2004 

 
Title
Structural and Optical Properties of Er(III) Complex with ODA and Phen (ODA = Oxydiacetate, Phen = 1,10-Phenanthroline)
Author
Jun-Gill Kang*, Tack-Jin Kim, Kwan Soo Park, Sung Kwon Kang
Keywords
[Er(ODA)·(phen)·4H2O]+, X-ray structure, Photoluminescence, Spectral dip, Energy transfer
Abstract
A novel Er(III) complex with oxydiacetate and 1,10-phenanthroline was synthesized and its structure and luminescence properties were characterized. The complex of [Er(ODA)·(phen)·4H2O]+ crystallizes in the monoclinic space group P21/n with a = 12.216(4) Å, b = 16.680(2) Å, c = 12.627(3) Å, β = 108.30(2)°, V = 2442.7(11) Å3, Z = 4 and ρ = 1.841 g/cm3. When the complex is excited at the He-Cd 325-nm line, it produces two broad bands spanning the regions 350-650 nm and 1200-1650 nm. The emission band of the complex is characterized by a series of spectral dips in the visible emission profile. The complex exhibits sensitized near- IR emission via two kinds of energy transfers from phen to Er(III): nonradiative and radiative energy transfers.
Page
373 - 376
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