Abstract
Abstract Near-infrared (NIR) luminescent Yb(III) complexes composed of low-vibrational frequency (LVF) fluorinated acetylacetonate and phosphine oxide ligands are reported. Their structures are determined using X-ray single-crystal analyses and categorized as eight-coordinated square antiprism. The radiative rate constants (kr), the nonradiative rate constants (knr), and the 4f–4f emission quantum efficiency (ΦEm) are estimated using their absorption spectra of magnetic dipole transition in Yb(III) complexes (2F5/2 → 2F7/2) and the observed emission lifetimes. Characteristic NIR luminescence properties of Yb(III) complexes with LVF phosphine oxide and fluorinated acetylacetonate ligands are elucidated in terms of the radiative and nonradiative rate constants.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
