|№||Выходные данные, дополнительная информация|
|1||I.S. Krytchankou, D.V. Krupenya, A.J. Karttunen, S.P. Tunik, T.A. Pakkanen, P.-T. Choud, I.O. Koshevoy, “Triphosphine-supported bimetallic AuI–MI (M = Ag, Cu) alkynyl clusters”, Dalton Trans., 2014, 43, 3383-3394. DOI:10.1039/C3DT52658E|
|Abstract. The reactions of gold acetylides (AuC2R)n with triphosphine ligands PPh2-(CH2)n-PPh-(CH2)2-PPh2 (n = 1,dpmp; 2, dpep) in the presence of M+ ions (M = Cu, Ag) lead to an assembly of the heterometallic clusters, the composition of which is determined by the steric bulkiness of the alkynyl groups and the flexibility of the phosphine motifs. All the title complexes exhibit room temperature luminescence in the solid state, showing a dependence of emission energy on the structure and composition of the metal core.||Bruker Avance 400, Bruker DPX 300. The NMR spectroscopic investigations showed that some complexes are stereochemically non-rigid in solution and reversibly undergo possible dissociation or isomerization processes.
The chemical structures of the studied compounds and complexes were confirmed by the solution 1D (1H, 31P, 13C) and 2D (COSY, HMQC, HSQC, HMBC) NMR.
|2||J.R. Shakirova, E.V. Grachova, A.J. Karttunen, V.V. Gurzhiy, S.P. Tunik, I.O. Koshevoy, “ Metallophilicity-assisted assembly of phosphinebased cage molecules”, Dalton Trans., 2014, 43, 6236-6243. DOI:10.1039/c3dt53645a|
|Abstract. A family of supramolecular cage molecules has been obtained via self-assembly of the phosphine–gold coordination complexes following an aurophilicity-driven aggregation approach. Use of the di- (PP) or tridentate (PPP) phosphine ligands Pn (n = 2, 3) with rigid polyaromatic backbones leads to clean formation of the coordination Pn(Au(tht))nn+ species, sequential treatment of which with H2O/NEt3 and excess of H2NBut gives the finite 3D structures of two major types: the cylindrical-like hexametallic cages and tetrahedral dodecagold complexes.||Bruker Avance 400. The NMR spectroscopic investigations showed that cylindrical complexes undergo twisting-like interconversion of the helical P↔M isomers in solution, while some other complexes are stereochemically rigid and retain their axially chiral architecture.
The chemical structures of the studied compounds and complexes were confirmed by the solution 1D (1H, 31P) and 2D COSY NMR.