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Full-Text Articles in Engineering
Inorganic Supramolecular Host Architectures: [(M@18c6)2][Tli4]·2h2o, M = 0.5 Tl, (Nh4,Nh3), (H3o,H2o), Franziska Rieger, Anja V. Mudring
Inorganic Supramolecular Host Architectures: [(M@18c6)2][Tli4]·2h2o, M = 0.5 Tl, (Nh4,Nh3), (H3o,H2o), Franziska Rieger, Anja V. Mudring
Anja V. Mudring
The compounds [(M@18c6)2][TlI4]·2H2O, M = Tl, (NH4,NH3), (H3O,H2O) (cubic, Fd3̄; a = 1481.00 pm, for M = 0.5 Tl, a = 1304.65 pm for M = (NH4,NH3), a = 1313.67 pm for M = (H3O,H2O)) can be obtained from solution in the presence of traces of transition metal halides (like copper and mercury halides). Apparently the transition metal cations work as a template in the form of tetrahedral [MX4] units during the synthesis of the supramolecular host architecture. That the compounds are versatile host lattices for tetrahedrally coordinated transition metal units becomes obvious by the large group of known host−guest …
Rare-Earth Iodides In Ionic Liquids: The Crystal Structure Of [Set3]3[Lni6] (Ln = Nd, Sm), Anja V. Mudring, Arash Babai
Rare-Earth Iodides In Ionic Liquids: The Crystal Structure Of [Set3]3[Lni6] (Ln = Nd, Sm), Anja V. Mudring, Arash Babai
Anja V. Mudring
Crystals of [SEt3]3[LnI6] (Ln = Nd, Sm) were obtained by the reaction of LnI2 with the ionic liquid [SEt3][Tf2N] [Tf2N = bis(trifluoromethanesulfonyl)imide]. The compounds are characterized by octahedral [LnI6]3- units that are surrounded by a distorted cube of triethylsulfonium cations.
Anhydrous Praseodymium Salts In The Ionic Liquid [Bmpyr][Tf2n]: Structural And Optical Properties Of [Bmpyr]4[Pri6][Tf2n] And [Bmyr]2[Pr(Tf2n)5], Arash Babai, Anja V. Mudring
Anhydrous Praseodymium Salts In The Ionic Liquid [Bmpyr][Tf2n]: Structural And Optical Properties Of [Bmpyr]4[Pri6][Tf2n] And [Bmyr]2[Pr(Tf2n)5], Arash Babai, Anja V. Mudring
Anja V. Mudring
Purposely designed ionic liquids can be excellent solvents for spectroscopic studies of rare earth compounds. Absorption and emission spectra of anhydrous PrI3 and Pr(Tf2N)3 in the ionic liquid 1,1-n-butyl-methylpyrrolidinium bis(trifluoromethanesulfonyl)amide, [bmpyr][Tf2N], at room temperature are presented together with the emission spectra of solid [bmpyr]2[Pr(Tf2N)5] and [bmpyr]4[PrI6][Tf2N]. After excitation into the 3P1 level, remarkable luminescence not only from the 1D2 level but also from the 3P0 and even from the 3P1 level is observed. Amazingly in the case of the solid compounds and even more astonishing for a solution of Pr(Tf2N)3 in [bmpyr][Tf2N] the strongest luminescence transitions start from the 3P0 …