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- W2795890825 endingPage "4369" @default.
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- W2795890825 abstract "Two imidazolium salts containing one or two pentadodecyloxytriphenylene units linked through a hexyloxy chain and Br-, [AuBr mCl4- m]-, or [PtBr mCl4- m]2- ( m = 0-3) as counterion have been prepared. Reaction of the imidazolium bromides with M2O (M = Cu, Ag), or carbene transmetalation from the silver product, leads to N-heterocyclic carbene complexes [MX(NHC)] (M = Cu, X = Br; M = Au, X = Cl, C≡CPh), [Ag(NHC)2][AgBr2], and [PtCl2(NHC)2], with NHC bearing one or two triphenylene fragments. Except for the gold derivatives and one Cu complex, the rest of them behave as liquid crystals organized in columnar mesophases (rectangular c2 mm or p2mg or hexagonal p6mm symmetries) with melting points in the range 30 to 60 °C and clearing points in the range 57-112 °C. The mesophase structures were determined by small-angle X-ray scattering. Structural studies and models point to nanosegregation of triphenylene columns and imidazolium/metal carbene moieties, separated by alkoxy chains, leading to multicolumnar systems. The compounds display emission spectra related to the triphenylene core in solution, in the mesophase, in the isotropic liquid, and in the solid state." @default.
- W2795890825 created "2018-04-13" @default.
- W2795890825 creator A5005749039 @default.
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- W2795890825 creator A5052535108 @default.
- W2795890825 creator A5070296684 @default.
- W2795890825 date "2018-04-02" @default.
- W2795890825 modified "2023-10-18" @default.
- W2795890825 title "Triphenylene-Imidazolium Salts and Their NHC Metal Complexes, Materials with Segregated Multicolumnar Mesophases" @default.
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- W2795890825 doi "https://doi.org/10.1021/acs.inorgchem.7b03178" @default.
- W2795890825 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/29608287" @default.
- W2795890825 hasPublicationYear "2018" @default.
- W2795890825 type Work @default.