1365670-92-3Relevant academic research and scientific papers
Construction of rhodium(I) and gold(I) macrocycles by transferring a phosphine-functionalized 4,5-diazafluorenide ligand from its copper(I) N-heterocyclic carbene complex
Tan, Runyu,Chiu, Frederick Sin Nang,Hadzovic, Alen,Song, Datong
, p. 2184 - 2192 (2012/06/01)
We report the synthesis and characterization of a phosphine-functionalized 4,5-diazafluorene ligand, 9-(2-(diphenylphosphino)ethyl)-4,5-diazafluorene (LpH), and its Cu(IPr) complex (IPr = N,N′-bis(2,6- diisopropylphenyl)imidazol-2-ylidene) [Cu(IPr)Lp] (2a), which exhibits a monomeric structure in solution but dimerizes in the solid state. Compound 2a reacts with Rh(PPh3)3Cl, [Rh(COD)Cl] 2, Au(SMe2)Cl, and Au(IPr)Cl to form the macrocyclic complexes [Rh(PPh3)Lp]2 (2b), [Rh(COD)L p]2 (2c), and [AuLp]2 (2d) and the mononuclear complex [Au(IPr)Lp] (2f), respectively, via ligand transfer. Although 2b-d,f could also be synthesized from the deprotonated ligand Lp- and the corresponding metal starting materials directly, the reactions require longer time and give lower yields. The reaction between LpH and Au(SMe2)Cl gives Au(LpH) 2Cl (2e) exclusively.
