Heterometallic Hybrid Open Frameworks: Synthesis and Application for Selective Detection of Nitro Explosives

Kangcai Wang; Xin Tian; Yunhe Jin; Jie Sun; Qinghua Zhang

doi:10.1021/acs.cgd.6b01808

Heterometallic Hybrid Open Frameworks: Synthesis and Application for Selective Detection of Nitro Explosives

Kangcai Wang
, Xin Tian
, Yunhe Jin
, Jie Sun
, Qinghua Zhang

China Academy of Engineering Physics

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

30 Scopus citations

Abstract

Three inorganic-organic hybrid open frameworks based on heterometallic cluster building blocks, formulated as Cd₂Cs₃(NDC)₃(OAc)(DMA)₂(H₂O) (1), [NH₂(CH₃)₂]₂·Cd₂Mg(NDC)₄·G_x (2), and [NH₂(CH₃)₂]₃·Cd₂K(NDC)₄·G_x (3) (H₂NDC = 2,6-naphthalenedicarboxylic acid, G = guest solvent molecule), were synthesized under solvothermal conditions. Compound 1 has a pillared layered structure featuring inorganic hcb-type layers with 14-ring windows and simultaneously exhibits a 3D open framework constructed from two types of heterometallic clusters, i.e., {Cd₂Cs₂O₁₈} and {CdCs₄O₁₈}, and the NDC^2- ligand. Compounds 2 and 3 are constructed from linear trinuclear {Cd₂M} (M = Mg and K) building blocks and the NDC^2- ligand, featuring 1D square channels with rld-z topology. Of the three heterometallic hybrid open frameworks, compounds 1 and 2 exhibited strong blue-light emission due to the presence of fluorescent organic ligands in the anionic frameworks, and more importantly, their strong fluorescence could be selectively quenched toward the nitro explosive picric acid (PA). Mechanism study has demonstrated that the high fluorescence quenching selectivity of both hybrid materials toward PA might be due to resonance energy transfer and photoinduced electron transfer processes.

Original language	English
Pages (from-to)	1836-1842
Number of pages	7
Journal	Crystal Growth and Design
Volume	17
Issue number	4
DOIs	https://doi.org/10.1021/acs.cgd.6b01808
State	Published - 5 Apr 2017
Externally published	Yes

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@article{febdc07d2e5d41c9b5b76018a619a90e,

title = "Heterometallic Hybrid Open Frameworks: Synthesis and Application for Selective Detection of Nitro Explosives",

abstract = "Three inorganic-organic hybrid open frameworks based on heterometallic cluster building blocks, formulated as Cd2Cs3(NDC)3(OAc)(DMA)2(H2O) (1), [NH2(CH3)2]2·Cd2Mg(NDC)4·Gx (2), and [NH2(CH3)2]3·Cd2K(NDC)4·Gx (3) (H2NDC = 2,6-naphthalenedicarboxylic acid, G = guest solvent molecule), were synthesized under solvothermal conditions. Compound 1 has a pillared layered structure featuring inorganic hcb-type layers with 14-ring windows and simultaneously exhibits a 3D open framework constructed from two types of heterometallic clusters, i.e., \{Cd2Cs2O18\} and \{CdCs4O18\}, and the NDC2- ligand. Compounds 2 and 3 are constructed from linear trinuclear \{Cd2M\} (M = Mg and K) building blocks and the NDC2- ligand, featuring 1D square channels with rld-z topology. Of the three heterometallic hybrid open frameworks, compounds 1 and 2 exhibited strong blue-light emission due to the presence of fluorescent organic ligands in the anionic frameworks, and more importantly, their strong fluorescence could be selectively quenched toward the nitro explosive picric acid (PA). Mechanism study has demonstrated that the high fluorescence quenching selectivity of both hybrid materials toward PA might be due to resonance energy transfer and photoinduced electron transfer processes.",

author = "Kangcai Wang and Xin Tian and Yunhe Jin and Jie Sun and Qinghua Zhang",

note = "Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

year = "2017",

month = apr,

day = "5",

doi = "10.1021/acs.cgd.6b01808",

language = "英语",

volume = "17",

pages = "1836--1842",

journal = "Crystal Growth and Design",

issn = "1528-7483",

publisher = "American Chemical Society",

number = "4",

}

TY - JOUR

T1 - Heterometallic Hybrid Open Frameworks

T2 - Synthesis and Application for Selective Detection of Nitro Explosives

AU - Wang, Kangcai

AU - Tian, Xin

AU - Jin, Yunhe

AU - Sun, Jie

AU - Zhang, Qinghua

PY - 2017/4/5

Y1 - 2017/4/5

N2 - Three inorganic-organic hybrid open frameworks based on heterometallic cluster building blocks, formulated as Cd2Cs3(NDC)3(OAc)(DMA)2(H2O) (1), [NH2(CH3)2]2·Cd2Mg(NDC)4·Gx (2), and [NH2(CH3)2]3·Cd2K(NDC)4·Gx (3) (H2NDC = 2,6-naphthalenedicarboxylic acid, G = guest solvent molecule), were synthesized under solvothermal conditions. Compound 1 has a pillared layered structure featuring inorganic hcb-type layers with 14-ring windows and simultaneously exhibits a 3D open framework constructed from two types of heterometallic clusters, i.e., {Cd2Cs2O18} and {CdCs4O18}, and the NDC2- ligand. Compounds 2 and 3 are constructed from linear trinuclear {Cd2M} (M = Mg and K) building blocks and the NDC2- ligand, featuring 1D square channels with rld-z topology. Of the three heterometallic hybrid open frameworks, compounds 1 and 2 exhibited strong blue-light emission due to the presence of fluorescent organic ligands in the anionic frameworks, and more importantly, their strong fluorescence could be selectively quenched toward the nitro explosive picric acid (PA). Mechanism study has demonstrated that the high fluorescence quenching selectivity of both hybrid materials toward PA might be due to resonance energy transfer and photoinduced electron transfer processes.

AB - Three inorganic-organic hybrid open frameworks based on heterometallic cluster building blocks, formulated as Cd2Cs3(NDC)3(OAc)(DMA)2(H2O) (1), [NH2(CH3)2]2·Cd2Mg(NDC)4·Gx (2), and [NH2(CH3)2]3·Cd2K(NDC)4·Gx (3) (H2NDC = 2,6-naphthalenedicarboxylic acid, G = guest solvent molecule), were synthesized under solvothermal conditions. Compound 1 has a pillared layered structure featuring inorganic hcb-type layers with 14-ring windows and simultaneously exhibits a 3D open framework constructed from two types of heterometallic clusters, i.e., {Cd2Cs2O18} and {CdCs4O18}, and the NDC2- ligand. Compounds 2 and 3 are constructed from linear trinuclear {Cd2M} (M = Mg and K) building blocks and the NDC2- ligand, featuring 1D square channels with rld-z topology. Of the three heterometallic hybrid open frameworks, compounds 1 and 2 exhibited strong blue-light emission due to the presence of fluorescent organic ligands in the anionic frameworks, and more importantly, their strong fluorescence could be selectively quenched toward the nitro explosive picric acid (PA). Mechanism study has demonstrated that the high fluorescence quenching selectivity of both hybrid materials toward PA might be due to resonance energy transfer and photoinduced electron transfer processes.

UR - https://www.scopus.com/pages/publications/85017118529

U2 - 10.1021/acs.cgd.6b01808

DO - 10.1021/acs.cgd.6b01808

M3 - 文章

AN - SCOPUS:85017118529

SN - 1528-7483

VL - 17

SP - 1836

EP - 1842

JO - Crystal Growth and Design

JF - Crystal Growth and Design

IS - 4

ER -

Heterometallic Hybrid Open Frameworks: Synthesis and Application for Selective Detection of Nitro Explosives

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