Pt<sup>II</sup> Phosphors with Click-Derived 1,2,3-Triazole-Containing Tridentate Chelates
作者:B. Schulze、C. Friebe、M. Jäger、H. Görls、E. Birckner、A. Winter、U. S. Schubert
DOI:10.1021/acs.organomet.7b00777
日期:2018.1.8
A series of PtII complexes featuring 1,2,3-triazole-derived N∧N∧N-, N∧C∧N- and C∧N∧C-coordinating ligands were studied both experimentally and computationally aiming at the design of new PtII phosphors. By virtue of click chemistry, the new complexes were readily functionalized, e.g., with bulky groups in order to suppress aggregation of the complexes. For a N∧C∧N-type cyclometalated PtII complex,
一系列的Pt II络合物设有1,2,3-三唑源性氮∧ Ñ ∧ N-,N ∧ Ç ∧ N-和C- ∧ Ñ ∧ C-配位配体进行了实验和研究计算针对新的设计Pt II荧光粉。借助点击化学,新的配合物易于被官能化,例如具有庞大的基团,以抑制配合物的聚集。上N ∧ Ç ∧ N型环金属化的Pt II配合物,1,2,3-三唑单元的π*轨道的高能引起深蓝色磷光。较差的发光量子产率归因于发射态与d-d态之间的能量分离不充分。然而,当1,2,3-三唑供体部分充当旁观者/辅助配体只,强烈的绿色发射可以实现(Φ PL = 0.57,τ= 4.6微秒)。