Related Experiment Video
Updated: Mar 6, 2026

ARL Spectral Fitting as an Application to Augment Spectral Data via Franck-Condon Lineshape Analysis and Color Analysis
Published on: August 19, 2021
Facile Approaches to Phosphorescent Bis(cyclometalated) Pentafluorophenyl PtIV Complexes: Photophysics and
Nora Giménez1, Rebeca Lara1, M Teresa Moreno1
1Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ), Universidad de La Rioja, 26006, Logroño, Spain.
Abstract:
A convenient and general strategy for the synthesis of stable bis(cyclometalated) pentafluorophenyl PtIV complexes fac-[Pt(C^N)2 (C6 F5 )Cl] (3 a-f) and mer-[Pt(C^N)2 (C6 F5 )(CN)] (4 c,d) has been developed. Complexes 3 were selectively generated by low-temperature oxidation of the cyclometalated PtII complexes [Pt(C^N)(HC^N)(C6 F5 )] 2 [prepared from cis-[Pt(C6 F5 )2 (HC^N)2 ] (1) intermediates] with PhICl2 and subsequent metalation of the pendant HC^N ligand. Complexes 3 a,b were also alternatively generated by irradiation (Hg lamp, 400 W) of complexes 2 a,b, respectively, in CH2 Cl2 . This latter reaction proceeds via the hydride PtIV species cis-[Pt(C^N)2 (C6 F5 )H], detected as the only intermediate species. The molecular structures of 1 a,d, 2 a, and 3 a,b,d,e were confirmed by X-ray diffraction. The substitution of Cl- by CN- in fac-[Pt(C^N)2 (C6 F5 )Cl] [C^N=2-phenylbenzothiazole (3 c), 2-(4-bromophenyl)benzothiazole (3 d)] evolved with isomerization to give rise to the isomers (OC-6-42)-[Pt(C^N)2 (C6 F5 )(CN)] (4 c, 4 d) having a mer disposition of the cyclometalated and C6 F5 groups (X-ray, 4 c). All the complexes are luminescent and their electronic spectra have been compared and interpreted with the aid of time-dependent DFT calculations.
More Related Videos
06:08Time-resolved Photophysical Characterization of Triplet-harvesting Organic Compounds at an Oxygen-free Environment Using an iCCD Camera
Published on: December 27, 2018
14:11Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach
Published on: June 10, 2021
Related Concept Videos
Photoluminescence: Applications
Variables Affecting Phosphorescence and Fluorescence
Photoluminescence: Fluorescence and Phosphorescence
A pair of electrons in a...
Photochemical Electrocyclic Reactions: Stereochemistry
Selection Rules: Photochemical Activation
Fluorescence and Phosphorescence: Instrumentation
Colors and Magnetism
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...