Issue 7, 2018
From the journal:

Dalton Transactions

Photochromism in oxalatoniobates†

Alexandra A. Shmakova,ab   Eugeniy M. Glebov, ORCID logo *bc   Valeri V. Korolev,b   Dmitri V. Stass,bc   Enrico Benassi,*bd   Pavel A. Abramov ORCID logo *ab  and  Maxim N. Sokolov ORCID logo ab  

* Corresponding authors

a Nikolaev Institute of Inorganic Chemistry SB RAS, 3 Akad. Lavrentiev Ave, 630090 Novosibirsk, Russia
E-mail: abramov@niic.nsc.ru

b Novosibirsk State University, 2 Pirogova Str., 630090 Novosibirsk, Russia
E-mail: glebov@kinetics.nsc.ru, enrico.benassi@sns.it

c Voevodsky Institute of Chemical Kinetics and Combustion, Institutskaya str. 3, 630090 Novosibirsk, Russia

d School of Science and Technology, Nazarbayev University, 53 Kabanbay Batyr Ave, Astana 010000, Republic of Kazakhstan

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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Article information

DOI
https://doi.org/10.1039/C7DT04077F
Article type
Paper
Submitted
29 Oct 2017
Accepted
02 Jan 2018
First published
09 Jan 2018

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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