Facile Synthesis and Characterization of Phosphorescent Pt(N<sup>∧</sup>C<sup>∧</sup>N)X Complexes
作者:Zixing Wang、Eric Turner、Vanessa Mahoney、Sijesh Madakuni、Thomas Groy、Jian Li
DOI:10.1021/ic100740e
日期:2010.12.20
crossing the spectrum of visible light. Most of the Pt complexes are strongly luminescent (Φ = 0.32−0.63) and have short luminescence lifetimes (τ = 4−7 μs) at room temperature. The lowest excited state of the Pt(N∧C∧N)X complexes is identified as a dominant ligand-centered 3π−π* state with some 1MLCT/3MLCT character, which appears to have a larger 1MLCT component than their bidentate and tridentate analogs
Tuning the <i>π</i>-backbonding and <i>σ</i>-<i>trans</i> effect of N^C^N coordinated Pt(II) complexes. <i>Kinetic and computational study</i>
作者:Tshephiso R. Papo、Deogratius Jaganyi
DOI:10.1080/00958972.2014.1001752
日期:2015.3.4
results in an increase in the rate of substitution. Second-order kinetics and large negative activation entropies (ΔS#) support an associative substitutionmechanism. The experimental data are supported by DFT calculations. The mechanistic pathway for the substitutionreaction of a strong trans labilizing phenyl of N^C^N platinum(II) complexes by biorelevant thioureanucleophiles go through the solvent associated