A homochiral Cu(<scp>i</scp>) coordination polymer based on achiral precursors and its photocatalytic properties

He, Xiang; Fang, Kang; Guo, Xiao-Hai; Han, Jing; Lu, Xiaopeng; Li, Mingxing

doi:10.1039/c5dt01328c

Cited by 26 publications

(6 citation statements)

References 33 publications

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“…Typically, from an energetic point of view, although each single crystal can be enantiomerically pure, the bulk substances should have equal probability to form unresolved conglomerates that contain same proportions of both enantiomers, thus remaining racemic. However, in much rarer cases, enantioenriched − or even homochiral crystallization , can also occur through chirality clone from the parent crystal to secondary crystal nuclei, a process known as “absolute asymmetric synthesis” or “second order spontaneous resolution”. Such phenomenon of obtaining enantio-enriched or homochiral MOFs from achiral building blocks is still a scantily explored area and often accompanied by a certain amount of skepticism because of the reasonable, yet elusive mechanism (vide infra).…”

Section: Design Principles and Syntheses Of Cmofsmentioning

confidence: 99%

Chiral Metal–Organic Frameworks

et al. 2022

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In the past two decades, metal–organic frameworks (MOFs) or porous coordination polymers (PCPs) assembled from metal ions or clusters and organic linkers via metal–ligand coordination bonds have captivated significant scientific interest on account of their high crystallinity, exceptional porosity, and tunable pore size, high modularity, and diverse functionality. The opportunity to achieve functional porous materials by design with promising properties, unattainable for solid-state materials in general, distinguishes MOFs from other classes of materials, in particular, traditional porous materials such as activated carbon, silica, and zeolites, thereby leading to complementary properties. Scientists have conducted intense research in the production of chiral MOF (CMOF) materials for specific applications including but not limited to chiral recognition, separation, and catalysis since the discovery of the first functional CMOF (i.e., d- or l-POST-1). At present, CMOFs have become interdisciplinary between chirality chemistry, coordination chemistry, and material chemistry, which involve in many subjects including chemistry, physics, optics, medicine, pharmacology, biology, crystal engineering, environmental science, etc. In this review, we will systematically summarize the recent progress of CMOFs regarding design strategies, synthetic approaches, and cutting-edge applications. In particular, we will highlight the successful implementation of CMOFs in asymmetric catalysis, enantioselective separation, enantioselective recognition, and sensing. We envision that this review will provide readers a good understanding of CMOF chemistry and, more importantly, facilitate research endeavors for the rational design of multifunctional CMOFs and their industrial implementation.

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Section: Design Principles and Syntheses Of Cmofsmentioning

confidence: 99%

Chiral Metal–Organic Frameworks

et al. 2022

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“…Over the last couple of decades, metal–organic frameworks (MOFs) have had enormous development not only by virtue of their multifarious structures given by luxuriant organic linkers and metal ions but also due to their significant potential value in gas storage, − magnetism, − catalysis, − drug delivery, , and chemosensors. − In recent years, luminescent MOF-based probes have attracted immense interest because of their particular aspects such as monitoring in real-time, quick response, high sensitivity, etc., so numerous MOFs have been synthesized as sensors for the detection of ions, explosives, and small molecules.…”

Section: Introductionmentioning

confidence: 99%

Two New Luminescent Cd(II)-Metal–Organic Frameworks as Bifunctional Chemosensors for Detection of Cations Fe³⁺, Anions CrO₄^2–, and Cr₂O₇^2– in Aqueous Solution

Chen

Shi

Qin

et al. 2016

Crystal Growth & Design

314

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Two new luminescent Cd(II)-metal−organic frameworks (MOFs), {[Cd(L)-, have been solvothermally synthesized using Cd 2+ ion and L ligand in the presence of auxiliary ligands and characterized by infrared spectroscopy, elemental analysis, powder X-ray diffraction, and thermogravimetry measurement. Topological analyses reveal that MOF 1 is a 6-connected 3-fold interpenetrating pcu network, and MOF 2 is a new 4-connected 2-fold interpenetrating network. Fluorescence titration, cyclic and antiinterference experiments demonstrate that MOFs 1 and 2 both are excellent probes for Fe 3+ , CrO 4 2− , and Cr 2 O 7 2−. The mechanisms of quenching are also deeply studied.

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“…35 Nevertheless, systematic investigations on the photocatalytic properties and reaction mechanism of copper(I) cyanide CPs have received relatively less attention. [36][37][38] On the basis of the above considerations, we have selected two related semi-rigid bis(benzimidazole) ligands (L1 and L2 are both bis(benzimidazole) ligands with the methyl groups at different positions) as main ligands to synthesize two new copper(I) cyanide CPs, namely [Cu 2 (L1)(CN) 2 ] n (1) and [Cu 2 (L2) (CN) 2 ] n (2). Among numerous three-fold interpenetration copper(I) cyanide CPs, [39][40][41][42] CP 1 represents the first 3D network with ThSi 2 topology based on semi-rigid bis(benzimidazole) ligands.…”

Section: Introductionmentioning

confidence: 99%

Two copper(i) cyanide coordination polymers modified by semi-rigid bis(benzimidazole) ligands: syntheses, crystal structures, and electrochemical and photocatalytic properties

Cui

Hecke

et al. 2016

Dalton Trans.

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Two Cu(i) cyanide coordination polymers (CPs), namely, [Cu(L1)(CN)] (1) and [Cu(L2)(CN)] (2) (L1 = 4,4'-bis(2-methylbenzimidazol-1-ylmethyl)biphenyl, L2 = 4,4'-bis(5,6-dimethylbenzimidazol-1-ylmethyl)biphenyl) were synthesized and structurally characterized by single crystal X-ray diffraction, IR spectroscopy, X-ray powder diffraction and elemental analysis. The cyanide ligands in these CPs are generated in situ from the C-C bond cleavage of acetonitrile under solvothermal conditions, which is environmentally friendly and used conveniently. CP 1 features a three-fold interpenetration 3D framework consisting of Cu(CN)(L1) rings, which represents the first investigation on introducing bis(benzimidazole) ligands into copper(i) cyanide CPs with ThSi topology, while CP 2 exhibits a two-dimensional (6,3) layered structure containing Cu(CN)(L2) rings. The thermal stabilities, and photoluminescence and electrochemical behavior in the solid state of CPs 1 and 2 have been investigated in detail. Moreover, both CP 1 and CP 2 manifest promising photocatalytic activities (photodegradation efficiency using CP 1 is 90.8% and using CP 2 is 87.2%) for the degradation of methylene blue (MB) under UV light irradiation. A possible photocatalytic mechanism is suggested by introducing t-butyl alcohol (TBA) as a widely used ˙OH scavenger.

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A homochiral Cu(i) coordination polymer based on achiral precursors and its photocatalytic properties

Cited by 26 publications

References 33 publications

Chiral Metal–Organic Frameworks

Chiral Metal–Organic Frameworks

Two New Luminescent Cd(II)-Metal–Organic Frameworks as Bifunctional Chemosensors for Detection of Cations Fe³⁺, Anions CrO₄^2–, and Cr₂O₇^2– in Aqueous Solution

Two copper(i) cyanide coordination polymers modified by semi-rigid bis(benzimidazole) ligands: syntheses, crystal structures, and electrochemical and photocatalytic properties

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A homochiral Cu(i) coordination polymer based on achiral precursors and its photocatalytic properties

Cited by 26 publications

References 33 publications

Chiral Metal–Organic Frameworks

Chiral Metal–Organic Frameworks

Two New Luminescent Cd(II)-Metal–Organic Frameworks as Bifunctional Chemosensors for Detection of Cations Fe3+, Anions CrO42–, and Cr2O72– in Aqueous Solution

Two copper(i) cyanide coordination polymers modified by semi-rigid bis(benzimidazole) ligands: syntheses, crystal structures, and electrochemical and photocatalytic properties

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Two New Luminescent Cd(II)-Metal–Organic Frameworks as Bifunctional Chemosensors for Detection of Cations Fe³⁺, Anions CrO₄^2–, and Cr₂O₇^2– in Aqueous Solution