Photochromism in oxalatoniobates.

作者: Alexandra A. Shmakova , Eugeniy M. Glebov , Valeri V. Korolev , Dmitri V. Stass , Enrico Benassi

DOI: 10.1039/C7DT04077F

关键词:

摘要: Addition of 2,2′-bipyridine (bpy), 1,10-phenanthroline (phen) or 2-aminopyridine (2-NH2-py) to aqueous solutions (NH4)[NbO(C2O4)2(H2O)2]·3H2O (Nb-Ox) yields tris-oxalate complexes (bpyH2)(bpyH)[NbO(C2O4)3]·2H2O (1), (phenH)3[NbO(C2O4)3]·3H2O (2), and (2-NH2-pyH)3[NbO(C2O4)3]·2H2O (3), which were characterised by XRD, IR EA. Bipyridinium salt 1 demonstrates remarkable photoactivity even under irradiation daylight. The nature the was studied diffuse reflectance (DR) spectroscopy, ESR quantum-chemical calculations.

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