2020
DOI: 10.1038/s41598-020-70715-6
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Redox-active, luminescent coordination nanosheet capsules containing magnetite

Abstract: Two-dimensional coordination nanosheets (CONASHs) are grown at the spherical liquid–liquid interface of a dichloromethane droplet in water to form zero-dimensional nano- and micro-capsules using a simple dropping method, a syringe-pump method, and an emulsion method. Reaction of 1,3,5-tris[4-(4′-2,2′:6′,2″-terpyridyl)phenyl]benzene (1) with Fe(BF4)2 affords electrochromic Fe(tpy)2 CONASH capsules and that of ligand 1 with ZnSO4 does photoluminescent Zn2(μ-O2SO2)2(tpy)2 CONASH capsules. Fe(tpy)2 CONASH capsules… Show more

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Cited by 9 publications
(7 citation statements)
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“…Based on the previous work, the ligand L was successfully synthesized by a Suzuki coupling reaction using 4′-(4-boronatophenyl)-2,2′:6′,2″-terpyridine and 1,3,5-tribromobenzene as reactants. There are three functionalized terpyridyl groups in L, which can form stable coordination compounds with most transition cations due to the existence of d –π* feedback bonds between metal cations and the ligand. Through the interface-assisted synthetic method, , a trichloromethane solution of L as the lower layer, Cd­(NO 3 ) 2 ·4H 2 O aqueous solution as the upper layer, finally, the cadmium coordination nanosheet (Cd-nanosheet) was obtained. The structure is shown in Figure (for clarity, the counteranions were omitted).…”
Section: Resultsmentioning
confidence: 99%
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“…Based on the previous work, the ligand L was successfully synthesized by a Suzuki coupling reaction using 4′-(4-boronatophenyl)-2,2′:6′,2″-terpyridine and 1,3,5-tribromobenzene as reactants. There are three functionalized terpyridyl groups in L, which can form stable coordination compounds with most transition cations due to the existence of d –π* feedback bonds between metal cations and the ligand. Through the interface-assisted synthetic method, , a trichloromethane solution of L as the lower layer, Cd­(NO 3 ) 2 ·4H 2 O aqueous solution as the upper layer, finally, the cadmium coordination nanosheet (Cd-nanosheet) was obtained. The structure is shown in Figure (for clarity, the counteranions were omitted).…”
Section: Resultsmentioning
confidence: 99%
“…However, nitrobenzene has high stability and certain solubility in water, and the resulting water pollution can last for a long time. In addition, an acute poisoning reaction (toxic methemoglobinemia) can occur when the human body inhales too much nitrobenzene, and in severe cases, it can lead to paralysis of the central nervous system and do great harm to human health. , Except for nitrobenzene, Cu 2+ ions have become one of the common pollution sources of soil and water due to copper mining and mechanical manufacturing. At present, the rich electrochemical properties of coordination polymer nanosheets have been widely reported. They have attractive application prospects in solidified electrochromic devices, microsupercapacitor devices, and flexible energy storage materials , due to their good redox activity. However, the luminescent properties of nanosheets are rarely studied.…”
Section: Introductionmentioning
confidence: 99%
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“…We previously reported the synthesis and electrochromism of bis(terpyridine)metal CONASHs, Fe-tpy and Co-tpy, by using interfacial coordination reactions. [14,15] As bis(terpyridine)iron(II) and bis(terpyridine)cobalt(II) motifs have small dissociation reaction rate constants, [16] they are suitable for stepwise construction of heterolayer structures with insignificant transmetalation. [17,18] In the present work, we developed a sequential liquid-liquid interfacial coordination reaction method to realize structurally designable chemically laminated heterolayers (Figure 1, below).…”
Section: Introductionmentioning
confidence: 99%
“…We previously reported the synthesis and electrochromism of bis(terpyridine)metal CONASHs, Fe‐tpy and Co‐tpy, by using interfacial coordination reactions [14,15] . As bis(terpyridine)iron(II) and bis(terpyridine)cobalt(II) motifs have small dissociation reaction rate constants, [16] they are suitable for stepwise construction of heterolayer structures with insignificant transmetalation [17,18] .…”
Section: Introductionmentioning
confidence: 99%