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(N,Se) and (Se,N,Se) ligands based on carborane and pyridine fragments – reactivity of 2,6-[(1′-Me-1′,2′-closo-C2B10H10)SeCH2]2C5H3N towards Copper and silver

AutorIlie, Adriana; Crespo, Olga ; Gimeno, M. Concepción ; Holthausen, Max C.; Laguna, Antonio ; Diefenbach, Martin; Silvestru, Cristian
Palabras claveSelenolates
Silver
Hydrogen bonds
Copper
Carboranes
Fecha de publicación2017
EditorWiley-VCH
CitaciónEuropean Journal of Inorganic Chemistry 2017(20): 2643-2652 (2017)
ResumenTwo new closo-carborane selenolated ligands, 2-[(1′-Me-1′,2′-closo-CBH)SeCH]CHN (L) and 2,6-[(1′-Me-1′,2′-closo-CBH)SeCH]CHN (L), were prepared by the C–H activation of 1-Me-1,2-CBH with nBuLi, followed by the insertion of elemental selenium into the C–Li bond and reaction with 2-(BrCH)CHN or 2,6-(BrCH)CHN, respectively. The closo species L and L were deboronated with CsF to give the nido-carborane cesium salts Cs[2-{(1′-Me-1′,2′-nido-CBH)SeCH}CHN] (1) and Cs[2,6-{(1′-Me-1′,2′-nido-CBH)SeCH}CHN] (2). The isolation of the complexes [Ag(OTf)(L)] (3, OTf = triflate), [Ag(PPh)(L)][OTf] (4), [Cu(L)(MeCN)][PF] (5), and [Cu(L)][PF] (6) indicates the coordination ability of L towards these metals. The molecular structures of L and L were established by single-crystal X-ray diffraction. Quantum-chemical calculations confirmed the molecular geometries and also the presence of C–H···Se intramolecular interactions as well as C–H···H–B and B–H···π intermolecular interactions.
URIhttp://hdl.handle.net/10261/155844
DOI10.1002/ejic.201700075
Identificadoresdoi: 10.1002/ejic.201700075
e-issn: 1099-0682
issn: 1434-1948
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