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Structural and Near‐IR Luminescent Properties of Erbium‐Containing Coordination Polymers
Author(s) -
Haquin Victor,
Gumy Frédéric,
Daiguebonne Carole,
Bünzli JeanClaude,
Guillou Olivier
Publication year - 2009
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.200900549
Subject(s) - luminescence , chemistry , erbium , quenching (fluorescence) , excited state , intermetallic , crystallography , polymer , doping , fluorescence , organic chemistry , optoelectronics , materials science , physics , alloy , quantum mechanics , nuclear physics
The near‐IR luminescence properties of two Er III ‐containing coordination polymers, namely, [Er(btc)(H 2 O) 5 · 3.5H 2 O] ∞ [(btc) 3– = 1,3,5‐benzenetricarboxylate] and [Er 2 (bdc) 3 (H 2 O) 4 ] ∞ [(bdc) 2– = 1,4‐benzenedicarboxylate] were investigated with the aim of testing their potential use as optical materials. Because both present relatively small quantum yields and short excited‐state lifetimes, factors influencing their luminescent properties were deciphered in an effort to improve their luminescent properties. Thus, three other families of compounds were also investigated: (i) the two corresponding dehydrated compounds with respective chemical formula [Er(btc)] and [Er 2 (bdc) 3 ] ∞ for evaluating the importance of O–H vibrators, (ii) the heterodinuclear compounds [Er 2–2 x Y 2 x (bdc) 3 (H 2 O) 4 ] ∞ ( x = 0.2, 0.5, 0.8 and 0.9) for estimating the role of intermetallic quenching and (iii) the heterodinuclear compounds [Er 2–2 x Yb 2 x (bdc) 3 (H 2 O) 4 ] ∞ ( x = 0.2 and 0.5) for checking whether Yb III ‐sensitized up‐conversion can be induced or not. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)