Matches in SemOpenAlex for { <https://semopenalex.org/work/W2321885279> ?p ?o ?g. }
- W2321885279 endingPage "2405" @default.
- W2321885279 startingPage "2395" @default.
- W2321885279 abstract "The Pd(PPh3)4/CuI-cocatalyzed reaction of Ru(C≡CC≡CH)(PPh3)2Cp (2) with aryl iodides, Ar–I (3, Ar = C6H4CN-4 (a); C6H4Me-4 (b); C6H4OMe-4 (c); 2,3-dihydrobenzo[b]thiophene (d); C5H4N (e)) proceeds smoothly in diisopropylamine and under an inert atmosphere to give the substituted buta-1,3-diynyl complexes Ru(C≡CC≡CAr)(PPh3)2Cp (4a–e) in moderate to good yield. The procedure allows the rapid preparation of a range of metal complexes of arylbuta-1,3-diynyl ligands without necessitating the prior synthesis of the individual buta-1,3-diynes as ligand precursors. Similar reaction of 2 with half an equivalent of 1,4-diiodobenzene affords the bimetallic derivative {Ru(PPh3)2Cp}2(μ-C≡CC≡C-1,4-C6H4–C≡CC≡C) (5). In the presence of atmospheric oxygen, homocoupling of the diynyl reagent 2 takes place to provide the octa-1,3,5,7-tetrayndiyl complex {Ru(PPh3)2Cp}2(μ-C≡CC≡CC≡CC≡C) (6). Crystallographically determined molecular structures are reported for five complexes (4a, 4b, 4d, 5, and 6). Quantum chemical calculations indicate that the HOMOs are mainly located on the C4–C6H4–C4 and C8 bridges for 5 and 6, respectively, while spectroelectrochemical (UV–vis–NIR and IR) studies on 6 establish that oxidation takes place at the C8 bridge, likely followed by cyclodimerization reactions of the bridging ligand." @default.
- W2321885279 created "2016-06-24" @default.
- W2321885279 creator A5000577948 @default.
- W2321885279 creator A5018104738 @default.
- W2321885279 creator A5018820614 @default.
- W2321885279 creator A5024152240 @default.
- W2321885279 creator A5082598321 @default.
- W2321885279 date "2015-02-17" @default.
- W2321885279 modified "2023-10-18" @default.
- W2321885279 title "Syntheses and Structures of Buta-1,3-Diynyl Complexes from “on Complex” Cross-Coupling Reactions" @default.
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