Application In Synthesis of Silver(I) trifluoromethanesulfonate. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Silver(I) trifluoromethanesulfonate, is researched, Molecular CAgF3O3S, CAS is 2923-28-6, about Silver(I) complexes based on diorganoselenium(II) ligands with amino or hydroxo functionalities. Author is David, Maria; Mitea, Raluca; Silvestru, Anca.
The diorganoselenide [Me2C(OH)CH2]2Se (1) was prepared by reacting the in situ obtained Na2Se with 1-chloro-2-methyl-2-propanol. Reactions of 1 and [2-(Me2NCH2)C6H4]2Se (2) with appropriate silver(I) salts in 1:1 molar ratio resulted in metal complexes of type [Ag(X)Se{CH2C(OH)Me2}2] [X = OSO2CF3 (OTf) (3), OClO3 (4)] and [Ag(X)Se{C6H4(CH2NMe2)-2}2] [X = OSO2CF3 (5), ONO2 (6)], resp. The ligand 1 and the silver complexes were investigated by appropriate spectroscopic methods, both in solution and in solid state: multinuclear NMR (1H, 13C, 19F, 77Se), ESI+ mass spectrometry, IR spectroscopy and molar conductivity The metal complexes behave as 1:1 electrolytes in 10-3 MeOH solutions, while in solid state the anionic ligands behave as monodentate moieties. Complexes 4 and 5 were investigated by single-crystal X-ray diffraction. The crystal of 4 contains two similar independent mols., 4a and 4b, for which was observed the migration of one OH hydrogen from ligand 1 to the OClO3 group, thus resulting in [Ag(HClO4)Se{OCCH2Me2}{(OH)CCH2Me2}], where ligand 1 behaves as an O,Se monometallic biconective moiety. In 5 the ligand 2 acts as a N,Se,N monometallic triconective moiety. In both compounds Ag(I) is surrounded by the donor atoms in a trigonal pyramidal coordination geometry. Strong Se → Ag intermol. interactions in 4 resulted in 1D coordination polymers built by 4a and 4b mols., resp., while in the crystal of 5 no interaction between heavy atoms was observed Supramol. networks based on H…O contacts are formed in both compounds
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Reference:
Benzofuran – Wikipedia,
Benzofuran | C8H6O – PubChem