title: First N-allyl-aminothiadiazole copper(I) π-complexes: synthesis and structural peculiarities of [Cu(L)CF3SO3] and [Cu2(L)2(H2O)2](SiF6) · 2.5H2O compounds (L = 2-(allyl)-amino-5-methyl-1,3,4-thiadiazole).
abstract: By means of alternating current electrochemical technique two crystalline copper(I) π-complexes with fluorine containing anions [Cu(L)CF3SO3] (1) and [Cu2(L)2(H2O)2](SiF6)2 · 2.5H2O (2) (L - 2-(allyl)-amino-5-methyl-1,3,4-thiadiazole) have been obtained and characterized by X-ray single crystal diffraction and Raman spectroscopy. In both structures the organic molecule L acts as chelate-bridging tridentate ligand being connected to copper(I) by two N atoms of thiadiazole ring and C=C bond from allyl group resulting in a formation of stable cationic dimers [Cu(L)2]2+. In the structure 1 oxygen atom from triflate-anion occupies an apical position of the metal coordination polyhedron, while in 2 located far from the metal centre hexafluorosilicate anion allows an appearance of the H2O molecule in copper environment. Hydrogen bonds (D)-H···A (where D = O, N, C; A = O, F) play a significant role in formation of 2D- (1) and 3D- (2) frameworks.
authors.forename: Bogdan
authors.initials: B
authors.lastname: Ardan
authors.forename: Yuriy
authors.initials: Y
authors.lastname: Slyvka
authors.forename: Evgeny
authors.initials: E
authors.lastname: Goreshnik
authors.forename: Marian
authors.initials: M
authors.lastname: Mys'kiv
mesh_terms: D000498:Allyl Compounds / Q000737:chemistry*; D056831:Coordination Complexes; D003300:Copper / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis*; D013059:Spectrum Analysis, Raman; D013830:Thiadiazoles / Q000737:chemistry*
chemical_list: D000498:Allyl Compounds; D056831:Coordination Complexes; D009942:Organometallic Compounds; D013830:Thiadiazoles; D003300:Copper