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Title: Anthracene-Based Lanthanide Metal-Organic Frameworks: Synthesis, Structure, Photoluminescence, and Radioluminescence Properties

Abstract

Four anthracene-based lanthanide metal-organic framework structures (MOFs) were synthesized from the combination of the lanthanide ions, Eu 3+, Tb 3+, Er 3+, and Tm 3+, with 9,10-anthracenedicarboxylic acid (H 2ADC) in dimethylformamide (DMF) under hydrothermal conditions. The 3-D networks crystalize in the triclinic system with P-1 space group with the following compositions: (i) {{[Ln 2(ADC) 3(DMF) 4·DMF]} n, Ln = Eu (1) and Tb (2)} and (ii) {{[Ln 2(ADC) 3(DMF) 2(OH 2) 2·2DMF·H 2O]} n, Ln = Er (3) and Tm (4)}. The metal centers exist in various coordination environments; nine coordinate in (i), while seven and eight coordinate in (ii). The deprotonated ligand, ADC, assumes multiple coordination modes, with its carboxylate functional groups severely twisted away from the plane of the anthracene moiety. The structures show ligand-based photoluminescence, which appears to be significantly quenched when compared with that of the parent H 2ADC solid powder. Structure 2 is the least quenched and showed an average photoluminescence lifetime from bi-exponential decay of 0.3 ns. On exposure to ionizing radiation, the structures show radioluminescence spectral features that are consistent with the isolation of the ligand units in its 3-D network. The spectral features vary among the 3-D networks and appear tomore » suggest that the latter undergo significant changes in their molecular and/or electronic structure in the presence of the ionizing radiation.« less

Authors:
 [1];  [1];  [2];  [1]
  1. Clark Atlanta Univ., Atlanta, GA (United States)
  2. Georgia Inst. of Technology, Atlanta, GA (United States)
Publication Date:
Research Org.:
Clark Atlanta Univ., Atlanta, GA (United States); Univ. of California, Riverside, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1422449
Alternate Identifier(s):
OSTI ID: 1507356
Grant/Contract Number:  
FE0022952; NA0000979
Resource Type:
Journal Article: Published Article
Journal Name:
Crystals
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2073-4352
Publisher:
MDPI
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; lanthanide coordination polymers; crystal structures; metal-organic framework fluorescence; radioluminescence; lanthanide metal-organic framework; lanthanide anthracene dicarboxylate coordination polymers

Citation Formats

Mathis, Stephan, Golafale, Saki, Solntsev, Kyril, and Ingram, Conrad. Anthracene-Based Lanthanide Metal-Organic Frameworks: Synthesis, Structure, Photoluminescence, and Radioluminescence Properties. United States: N. p., 2018. Web. doi:10.3390/cryst8010053.
Mathis, Stephan, Golafale, Saki, Solntsev, Kyril, & Ingram, Conrad. Anthracene-Based Lanthanide Metal-Organic Frameworks: Synthesis, Structure, Photoluminescence, and Radioluminescence Properties. United States. doi:10.3390/cryst8010053.
Mathis, Stephan, Golafale, Saki, Solntsev, Kyril, and Ingram, Conrad. Mon . "Anthracene-Based Lanthanide Metal-Organic Frameworks: Synthesis, Structure, Photoluminescence, and Radioluminescence Properties". United States. doi:10.3390/cryst8010053.
@article{osti_1422449,
title = {Anthracene-Based Lanthanide Metal-Organic Frameworks: Synthesis, Structure, Photoluminescence, and Radioluminescence Properties},
author = {Mathis, Stephan and Golafale, Saki and Solntsev, Kyril and Ingram, Conrad},
abstractNote = {Four anthracene-based lanthanide metal-organic framework structures (MOFs) were synthesized from the combination of the lanthanide ions, Eu3+, Tb3+, Er3+, and Tm3+, with 9,10-anthracenedicarboxylic acid (H2ADC) in dimethylformamide (DMF) under hydrothermal conditions. The 3-D networks crystalize in the triclinic system with P-1 space group with the following compositions: (i) {{[Ln2(ADC)3(DMF)4·DMF]}n, Ln = Eu (1) and Tb (2)} and (ii) {{[Ln2(ADC)3(DMF)2(OH2)2·2DMF·H2O]}n, Ln = Er (3) and Tm (4)}. The metal centers exist in various coordination environments; nine coordinate in (i), while seven and eight coordinate in (ii). The deprotonated ligand, ADC, assumes multiple coordination modes, with its carboxylate functional groups severely twisted away from the plane of the anthracene moiety. The structures show ligand-based photoluminescence, which appears to be significantly quenched when compared with that of the parent H2ADC solid powder. Structure 2 is the least quenched and showed an average photoluminescence lifetime from bi-exponential decay of 0.3 ns. On exposure to ionizing radiation, the structures show radioluminescence spectral features that are consistent with the isolation of the ligand units in its 3-D network. The spectral features vary among the 3-D networks and appear to suggest that the latter undergo significant changes in their molecular and/or electronic structure in the presence of the ionizing radiation.},
doi = {10.3390/cryst8010053},
journal = {Crystals},
issn = {2073-4352},
number = 1,
volume = 8,
place = {United States},
year = {2018},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.3390/cryst8010053

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Works referenced in this record:

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