Luminescent Platinum Complexes with Terdentate Ligands Forming 6-Membered Chelate Rings: Advantageous and Deleterious Effects in N<sup>∧</sup>N<sup>∧</sup>N and N<sup>∧</sup>C<sup>∧</sup>N-Coordinated Complexes
作者:Katherine L. Garner、Louise F. Parkes、Jason D. Piper、J. A. Gareth Williams
DOI:10.1021/ic9016323
日期:2010.1.18
such as 2,2′:6′,2′′-terpyridine (tpy), bind to Pt(II). All the quinolyl-based complexes are phosphorescent in solution at room temperature, with quantum yields up to 4%. This contrasts with the well-established lack of emission from [Pt(tpy)Cl]+ under these conditions. Density functional theory calculations suggest that the improvement may stem, at least in part, from the relief of ring strain associated
铂(II)形式的配合物[PTL Ñ CL] +报道,含有N个∧ Ñ ∧ N-二配位配体2,6-二(8-喹啉基)吡啶(L 1),2,6-二(8- -喹啉基)-4-甲氧基吡啶(L 2)或2,6-二(7-氮杂吲哚基)-吡啶(L 3)。氯化物配体在[PtL 1 Cl] +中的复分解反应可以在温和的条件下完成,例如形成[PtL 1 OMe] +和[PtL 1(C≡C-tfp)] +的络合物即可。哪一个L 1保持结合成一个齿状配体HC≡C-tfp= 3,5-双(三氟甲基)-苯乙炔}。一个N ∧ Ç ∧的N-配位的环金属化类似物[专利文献1 CL] +也已经准备,即,在专利文献4氯其中HL 4为1,3-二(8-喹啉基)苯。六个新配合物中的共同特点这里所描述的是,他们含有6元螯合环,而不是通常的5元环这种形式时更公共N ∧ Ñ ∧N个配体,例如2,2':6',2''-吡啶(tpy),与Pt(II)结合。