biostudies-literatureBorowski PAgence Nationale de la RechercheNarodowe Centrum NaukiCentre National de la Recherche Scientifique6624-6640https://www.ebi.ac.uk/biostudies/studies/S-EPMC9066408biostudies-literatureUnknown61(17)Two photoswitchable nickel(II) nitro coordination compounds and their copper(II) analogues are reported. In all these systems, the metal center is chelated by (<i>N</i>,<i>N</i>,<i>O</i>)-donor ligands containing either 2-picolylamine or 8-aminoquinoline fragments. The studied compounds were thoroughly investigated using crystallographic and spectroscopic techniques supplemented by computational analysis. They are easy to synthesize and stable, and all compounds undergo the nitro group isomerization reaction. Nevertheless, there are significant differences between the copper and nickel systems regarding their structural and switchable properties. According to the solid-state IR spectroscopy results, 400-660 nm light irradiation of the ground-state (η²-<i>O</i>,<i>O</i>')-κ-nitriInorganic chemistryExploring Photoswitchable Properties of Two Nitro Nickel(II) Complexes with (<i>N</i>,<i>N</i>,<i>O</i>)-Donor Ligands and Their Copper(II) Analogues.PMC90664082017/25/N/ST4/02440ANR-15-IDEX-04-LUEJarzembska KNSchaniel DBorowski PKrowczynski AKaminski RKutniewska SEfalseExploring Photoswitchable Properties of Two Nitro Nickel(II) Complexes with (<i>N</i>,<i>N</i>,<i>O</i>)-Donor Ligands and Their Copper(II) Analogues.Two photoswitchable nickel(II) nitro coordination compounds and their copper(II) analogues are reported. In all these systems, the metal center is chelated by (<i>N</i>,<i>N</i>,<i>O</i>)-donor ligands containing either 2-picolylamine or 8-aminoquinoline fragments. The studied compounds were thoroughly investigated using crystallographic and spectroscopic techniques supplemented by computational analysis. They are easy to synthesize and stable, and all compounds undergo the nitro group isomerization reaction. Nevertheless, there are significant differences between the copper and nickel systems regarding their structural and switchable properties. According to the solid-state IR spectroscopy results, 400-660 nm light irradiation of the ground-state (η²-<i>O</i>,<i>O</i>')-κ-nitri2022-01-01T00:00:00Z2022 May2025-04-05T14:43:05.012Z2024-10-15T07:36:00.056ZS-EPMC90664083543081710.1021/acs.inorgchem.2c00526