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IJC-A Vol.47A(09) [September 2008] >

Title: Hydrothermal synthesis, crystal structure and strong photoluminescence of [Er(C₆NO₂H₅)₂ (H₂O)₄ (NO₃)]•2NO₃
Authors: Chen, Wen-Tong
Li, Xin-Fa
Luo, Qiu-Yan
Xu, Ya-Ping
Liu, Dong-Sheng
Issue Date: Sep-2008
Publisher: CSIR
IPC CodeInt. Cl.⁸ C07F5/00
Abstract: The hydrothermal reaction of erbium nitrate with isonicotinic acid affords the erbium complex [Er(C₆NO₂H₅)₂ (H₂O)₄ (NO₃)]•2NO₃, which has been structurally characterized by X-ray diffraction. The title complex is characteristic of an isolated structure based on one discrete [Er(C₆NO₂H₅)₂ (H₂O)₄ (NO₃)]²⁺ moiety and two isolated nitrate anions. The [Er(C₆NO₂H₅)₂( H₂O)₄ (NO₃)]²⁺ moieties and the nitrate anions are interconnected via hydrogen bonds to form a two-dimensional supramolecular network. Photoluminescent investigation reveals that the title complex displays a greenish yellow emission band and a red emission band. The greenish yellow emission band is stronger than that of the red emission band. The greenish yellow and red emission bands are identified as the Er³⁺ transitions from the ²H₁₁/₂, ⁴S₃/₂ and ⁴F₉/₂ levels to the ⁴I₁₅/₂ ground state.
Page(s): 1369-1372
ISSN: 0376-4710
Source:IJC-A Vol.47A(09) [September 2008]

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