Structure, photoluminescence, and magnetic properties of a Mn(ii)-based metal-organic framework

Hyojin Kim; Sunhwi Eom; Sora Park; Dong Won Kang; Mengmeng Wang; Youngseo Kim; Sungnam Park; Wei Shi; Chang Seop Hong

doi:10.1039/d0nj04193a

Structure, photoluminescence, and magnetic properties of a Mn(ii)-based metal-organic framework

Hyojin Kim, Sunhwi Eom, Sora Park, Dong Won Kang, Mengmeng Wang, Youngseo Kim, Sungnam Park, Wei Shi, Chang Seop Hong

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

We synthesized a three-dimensional Mn-based framework [Mn3L2(H2O)3]·7.5DEF·3H2O (1; H3L = tris((4-carboxyl)phenyl)amine, DEF = N,N-diethylformamide) via the solvothermal reaction of Mn2+ and H3L in a mixed DEF/H2O solvent. In the crystal structure of 1, two types of 4- and 8-membered ring channels in the lattice emerge. Three Mn centers in the asymmetric unit adopted distorted octahedral (Mn2 and Mn3) and trigonal bipyramidal (Mn1) arrangements. The photoluminescence of 1 was completely quenched by nitroaromatic compounds and Cu2+ ions. Magnetic properties were studied as a function of temperature and magnetic field, and the results indicated the existence of overall antiferromagnetic couplings between the Mn(ii) spins. Weak ferromagnetism was observed at low temperatures due to the possible spin canting in this Mn(ii) system.

Original language	English
Pages (from-to)	18694-18702
Number of pages	9
Journal	New Journal of Chemistry
Volume	44
Issue number	43
DOIs	https://doi.org/10.1039/d0nj04193a
Publication status	Published - 2020 Nov 21

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Materials Chemistry

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@article{08bfa260d5fa43cb924bea61d0c33dcc,

title = "Structure, photoluminescence, and magnetic properties of a Mn(ii)-based metal-organic framework",

abstract = "We synthesized a three-dimensional Mn-based framework [Mn3L2(H2O)3]·7.5DEF·3H2O (1; H3L = tris((4-carboxyl)phenyl)amine, DEF = N,N-diethylformamide) via the solvothermal reaction of Mn2+ and H3L in a mixed DEF/H2O solvent. In the crystal structure of 1, two types of 4- and 8-membered ring channels in the lattice emerge. Three Mn centers in the asymmetric unit adopted distorted octahedral (Mn2 and Mn3) and trigonal bipyramidal (Mn1) arrangements. The photoluminescence of 1 was completely quenched by nitroaromatic compounds and Cu2+ ions. Magnetic properties were studied as a function of temperature and magnetic field, and the results indicated the existence of overall antiferromagnetic couplings between the Mn(ii) spins. Weak ferromagnetism was observed at low temperatures due to the possible spin canting in this Mn(ii) system.",

author = "Hyojin Kim and Sunhwi Eom and Sora Park and Kang, {Dong Won} and Mengmeng Wang and Youngseo Kim and Sungnam Park and Wei Shi and Hong, {Chang Seop}",

note = "Funding Information: This work was supported by the Korea CCS R&D Center (KCRC) grant funded by the Korean government (the Ministry of Science, ICT, & Future Planning (MSIP)) (NRF-2012-0008901), the Basic Science Research Program (NRF-2018R1A2A1A05079297), the Priority Research Centers Program (NRF-2019R1A6A1A11044070), and PAL. W. S. acknowledges the receipt of a Newton Advanced Fellowship from the Royal Society. Publisher Copyright: {\textcopyright} 2020 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.",

year = "2020",

month = nov,

day = "21",

doi = "10.1039/d0nj04193a",

language = "English",

volume = "44",

pages = "18694--18702",

journal = "New Journal of Chemistry",

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publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - Structure, photoluminescence, and magnetic properties of a Mn(ii)-based metal-organic framework

AU - Kim, Hyojin

AU - Eom, Sunhwi

AU - Park, Sora

AU - Kang, Dong Won

AU - Wang, Mengmeng

AU - Kim, Youngseo

AU - Park, Sungnam

AU - Shi, Wei

AU - Hong, Chang Seop

N1 - Funding Information: This work was supported by the Korea CCS R&D Center (KCRC) grant funded by the Korean government (the Ministry of Science, ICT, & Future Planning (MSIP)) (NRF-2012-0008901), the Basic Science Research Program (NRF-2018R1A2A1A05079297), the Priority Research Centers Program (NRF-2019R1A6A1A11044070), and PAL. W. S. acknowledges the receipt of a Newton Advanced Fellowship from the Royal Society. Publisher Copyright: © 2020 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.

PY - 2020/11/21

Y1 - 2020/11/21

N2 - We synthesized a three-dimensional Mn-based framework [Mn3L2(H2O)3]·7.5DEF·3H2O (1; H3L = tris((4-carboxyl)phenyl)amine, DEF = N,N-diethylformamide) via the solvothermal reaction of Mn2+ and H3L in a mixed DEF/H2O solvent. In the crystal structure of 1, two types of 4- and 8-membered ring channels in the lattice emerge. Three Mn centers in the asymmetric unit adopted distorted octahedral (Mn2 and Mn3) and trigonal bipyramidal (Mn1) arrangements. The photoluminescence of 1 was completely quenched by nitroaromatic compounds and Cu2+ ions. Magnetic properties were studied as a function of temperature and magnetic field, and the results indicated the existence of overall antiferromagnetic couplings between the Mn(ii) spins. Weak ferromagnetism was observed at low temperatures due to the possible spin canting in this Mn(ii) system.

AB - We synthesized a three-dimensional Mn-based framework [Mn3L2(H2O)3]·7.5DEF·3H2O (1; H3L = tris((4-carboxyl)phenyl)amine, DEF = N,N-diethylformamide) via the solvothermal reaction of Mn2+ and H3L in a mixed DEF/H2O solvent. In the crystal structure of 1, two types of 4- and 8-membered ring channels in the lattice emerge. Three Mn centers in the asymmetric unit adopted distorted octahedral (Mn2 and Mn3) and trigonal bipyramidal (Mn1) arrangements. The photoluminescence of 1 was completely quenched by nitroaromatic compounds and Cu2+ ions. Magnetic properties were studied as a function of temperature and magnetic field, and the results indicated the existence of overall antiferromagnetic couplings between the Mn(ii) spins. Weak ferromagnetism was observed at low temperatures due to the possible spin canting in this Mn(ii) system.

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U2 - 10.1039/d0nj04193a

DO - 10.1039/d0nj04193a

M3 - Article

AN - SCOPUS:85096032655

SN - 1144-0546

VL - 44

SP - 18694

EP - 18702

JO - New Journal of Chemistry

JF - New Journal of Chemistry

IS - 43

ER -

Structure, photoluminescence, and magnetic properties of a Mn(ii)-based metal-organic framework

Abstract

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