Au(III) Cyclometallated Compounds with 2-Arylpyridines and Their Derivatives or Analogues: 34 Years (1989–2022) of NMR and Single Crystal X-ray Studies

A review paper on Au(III) cyclometallated compounds with 2-arylpyridines (2-phenylpyridine, 2-benzylpyridine, 2-benzoylpyridine, 2-phenoxypyridine, 2-phenylsulfanylpyridine, 2-anilinopyridine, 2-(naphth-2-yl)pyridine, 2-(9,9-dialkylfluoren-2-yl)pyridines, 2-(dibenzofuran-4-yl)pyridine, and their derivatives) analogues (2-arylquinolines, 1- 3-arylisoquinolines, 7,8-benzoquinoline), 113 references. total of 554 species, containing κ2-N(1),C(6′)*-Au(III), or analogous moiety (i.e., chelated by nitrogen the pyridine-like ring deprotonated ortho- carbon phenyl-like ring) and, thus, possessing a character intermediate between metal complexes organometallics, studied in years 1989–2022 NMR spectroscopy and/or single crystal X-ray diffraction (207 structures), are described. The for which biological catalytic activity luminescence properties were also quoted.