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Keywords = Salamo-like tetraoxime

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15 pages, 4443 KiB  
Article
Unprecedented Fluorescent Dinuclear CoII and ZnII Coordination Compounds with a Symmetric Bis(salamo)-Like Tetraoxime
by Lin-Wei Zhang, Ling-Zhi Liu, Fei Wang and Wen-Kui Dong
Molecules 2018, 23(5), 1141; https://doi.org/10.3390/molecules23051141 - 10 May 2018
Cited by 44 | Viewed by 4927
Abstract
Two unprecedented homometallic CoII and ZnII coordination compounds, [M2(L)(OCH3)][M2(L)(OAc)] (MII = CoII (1) and ZnII (2)), with a novel symmetric bis(salamo)-like tetraoxime ligand H3L were synthesized [...] Read more.
Two unprecedented homometallic CoII and ZnII coordination compounds, [M2(L)(OCH3)][M2(L)(OAc)] (MII = CoII (1) and ZnII (2)), with a novel symmetric bis(salamo)-like tetraoxime ligand H3L were synthesized and characterized by elemental analyses, infrafred (IR), ultraviolet–visible spectroscopy (UV-Vis), fluorescent spectra and single-crystal X-ray diffraction analyses. The unit cell of the two coordination compounds contains two crystallographically and chemically independent dinuclear coordination compounds. In the two coordination compounds, three metal ions are five-coordinated, formed two square pyramidal and a trigonal bipyramidal geometries, and the other metal ion is a hexacoordinate octahedral configuration. In addition, the coordination compound 1 forms a 3D supramolecular structure, and the coordination compound 2 forms a 0D dimer structure by the inter-molecular hydrogen bond interactions. Meanwhile, the fluorescence spectra of the coordination compounds 1 and 2 were also measured and discussed. Full article
(This article belongs to the Special Issue Lumino and Fluorophores—Illuminating Science and Technology)
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15 pages, 2964 KiB  
Communication
Hetero-Trinuclear CoII2-DyIII Complex with a Octadentate Bis(Salamo)-Like Ligand: Synthesis, Crystal Structure and Luminescence Properties
by Yu-Hua Yang, Jing Hao, Xiao-Yan Li, Yang Zhang and Wen-Kui Dong
Crystals 2018, 8(4), 174; https://doi.org/10.3390/cryst8040174 - 18 Apr 2018
Cited by 7 | Viewed by 3545
Abstract
A hetero-trinuclear CoII2-DyIII complex, [Co2L(DMF)2Dy(NO3)3]·C2H5O2 was synthesized via the reaction of a multi-naphthol-based bis(Salamo)-like tetraoxime H4L with Co(OAc)2·4H2O and Dy(NO [...] Read more.
A hetero-trinuclear CoII2-DyIII complex, [Co2L(DMF)2Dy(NO3)3]·C2H5O2 was synthesized via the reaction of a multi-naphthol-based bis(Salamo)-like tetraoxime H4L with Co(OAc)2·4H2O and Dy(NO3)3·6H2O, and fully characterized via elemental analyses, X-ray crystallography, FT-IR and UV-Vis spectra. In addition, luminescence properties of H4L and its CoII2-DyIII complex have also been investigated. Full article
(This article belongs to the Section Crystal Engineering)
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15 pages, 8786 KiB  
Article
Synthesis, Crystal Structure, Luminescence, Electrochemical and Antimicrobial Properties of Bis(salamo)-Based Co(II) Complex
by Li Wang, Jing Hao, Li-Xiang Zhai, Yang Zhang and Wen-Kui Dong
Crystals 2017, 7(9), 277; https://doi.org/10.3390/cryst7090277 - 12 Sep 2017
Cited by 38 | Viewed by 6056
Abstract
A newly designed Co(II) complex, [Co3(L)(OAc)2(CH3OH)2]·CH3OH, by the reaction of a bis(salamo)-type tetraoxime ligand (H4L) with Co(II) acetate tetrahydrate was synthesized and characterized by elemental analyses, IR, UV-vis spectra and single-crystal [...] Read more.
A newly designed Co(II) complex, [Co3(L)(OAc)2(CH3OH)2]·CH3OH, by the reaction of a bis(salamo)-type tetraoxime ligand (H4L) with Co(II) acetate tetrahydrate was synthesized and characterized by elemental analyses, IR, UV-vis spectra and single-crystal X-ray crystallography. The UV-vis titration experiment manifested that a trinuclear (L:M = 1:3) complex was formed. It is worth noting that the two terminal Co(II) (Co1 and Co3) atoms of the Co(II) complex have different coordination modes and geometries unreported earlier. Furthermore, through intermolecular interactions (C–H···O, C–H···π and O–H···O), a 2D layer-like network is constructed. In addition, the fluorescence behaviors, antimicrobial activities and electrochemical properties of H4L and its Co(II) complex were investigated. Full article
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