摘要
Three homochiral metal-tryptophanate frameworks, {[Zn2(L-trp) 2(bpe)2(H2O)2]·2H 2O·2NO3}n (1a, L-Htrp = L-tryptophan, bpe = 1,2-bis(4-pyridyl)ethylene), {[Co(L-trp)(bpe)(H2O)] ·H2O·NO3}n (1b), and {[Co(L-trp)(bpa)(H2O)]·H2O·NO 3}n (2, bpa = 1,2-bis(4-pyridyl)ethane), were constructed from Zn2+ or Co2+ ions, bipyridyl ligands, and the amino acid L-tryptophan (L-Htrp), respectively. Compounds 1a, 1b, and 2 were characterized by single-crystal X-ray diffraction analysis. All of the compounds crystallize in the monoclinic space group P21 and form homochiral two-dimensional (2D) layers with rectangle-like (4,4) topologies. Anion-controlled dielectric, luminescence, and nonlinear-optic (NLO) properties were measured for these chiral metal-organic frameworks (MOFs) in the solid state. Emission spectra confirmed that compound 1a exhibited a green emission at 546 nm. Dielectric studies of 1a revealed that it had very low dielectric constant (κ = 2.53 at 1 MHz), thus verifying that it is a promising candidate for interlayer dielectrics. The anion-controlled dielectric properties of 1a were observed after treatment with solutions of different anions. The results revealed a significant change in κ value in the case of the phosphate anion. Secondary harmonic generation (SHG) studies revealed that 1a had a good SHG intensity response that was about twice that of SiO2.
原文 | ???core.languages.en_GB??? |
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頁(從 - 到) | 1572-1579 |
頁數 | 8 |
期刊 | Crystal Growth and Design |
卷 | 14 |
發行號 | 4 |
DOIs | |
出版狀態 | 已出版 - 2 4月 2014 |
指紋
深入研究「Anion-controlled dielectric behavior of homochiral tryptophan-based metal-organic frameworks」主題。共同形成了獨特的指紋。資料集
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CCDC 1006799: Experimental Crystal Structure Determination
Mendiratta, S. (???dataset.roles.dataset.creator???), Usman, M. (???dataset.roles.dataset.creator???), Luo, T.-T. (???dataset.roles.dataset.creator???), Chang, B.-C. (???dataset.roles.dataset.creator???), Lee, S.-F. (???dataset.roles.dataset.creator???), Lin, Y.-C. (???dataset.roles.dataset.creator???) & Lu, K.-L. (???dataset.roles.dataset.creator???), The Cambridge Structural Database, 2014
DOI: 10.5517/cc12sndx, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/cc12sndx&sid=DataCite
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CCDC 1006798: Experimental Crystal Structure Determination
Mendiratta, S. (???dataset.roles.dataset.creator???), Usman, M. (???dataset.roles.dataset.creator???), Luo, T.-T. (???dataset.roles.dataset.creator???), Chang, B.-C. (???dataset.roles.dataset.creator???), Lee, S.-F. (???dataset.roles.dataset.creator???), Lin, Y.-C. (???dataset.roles.dataset.creator???) & Lu, K.-L. (???dataset.roles.dataset.creator???), The Cambridge Structural Database, 2014
DOI: 10.5517/cc12sncw, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/cc12sncw&sid=DataCite
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CCDC 1006800: Experimental Crystal Structure Determination
Mendiratta, S. (???dataset.roles.dataset.creator???), Usman, M. (???dataset.roles.dataset.creator???), Luo, T.-T. (???dataset.roles.dataset.creator???), Chang, B.-C. (???dataset.roles.dataset.creator???), Lee, S.-F. (???dataset.roles.dataset.creator???), Lin, Y.-C. (???dataset.roles.dataset.creator???) & Lu, K.-L. (???dataset.roles.dataset.creator???), The Cambridge Structural Database, 2014
DOI: 10.5517/cc12snfy, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/cc12snfy&sid=DataCite
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