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Issue 7, 2018
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Photochromism in oxalatoniobates

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Abstract

Addition of 2,2′-bipyridine (bpy), 1,10-phenanthroline (phen) or 2-aminopyridine (2-NH2-py) to aqueous solutions of (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 and EA. Bipyridinium salt 1 demonstrates remarkable photoactivity even under irradiation by daylight. The nature of the photoactivity was studied by diffuse reflectance (DR) spectroscopy, ESR and quantum-chemical calculations.

Graphical abstract: Photochromism in oxalatoniobates

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The article was received on 29 Oct 2017, accepted on 02 Jan 2018 and first published on 09 Jan 2018


Article type: Paper
DOI: 10.1039/C7DT04077F
Citation: Dalton Trans., 2018,47, 2247-2255
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    Photochromism in oxalatoniobates

    A. A. Shmakova, E. M. Glebov, V. V. Korolev, D. V. Stass, E. Benassi, P. A. Abramov and M. N. Sokolov, Dalton Trans., 2018, 47, 2247
    DOI: 10.1039/C7DT04077F

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