Synthesis and Characterization of [(OH)TeNb5O18](6-) in Water Solution, Comparison with [Nb6O19](8-) | Sciact - CRIS-система Института катализа

Synthesis and Characterization of [(OH)TeNb5O18](6-) in Water Solution, Comparison with [Nb6O19](8-) Научная публикация

Журнал

Inorganic Chemistry
ISSN: 0020-1669 , E-ISSN: 1520-510X

Вых. Данные

Год: 2016, Том: 55, Номер: 4, Страницы: 1381-1389 Страниц : 9 DOI: 10.1021/acs.inorgchem.5b01806

Ключевые слова

CRYSTAL-STRUCTURE; PHOTOCATALYTIC PROPERTIES; COORDINATION CHEMISTRY; POLYOXONIOBATE; HEXANIOBATE; ION; COMPLEXES; CLUSTER; Te; Nb

Авторы

Abramov Pavel A. ^1,2 , Zemerova Tatiana P. ^1,2 , Moroz Nikolay K. ¹ , Kompankov Nikolay B. ¹ , Zhdanov Artem A. ¹ , Tsygankova Alfiya R. ¹ , Vicent Cristian ³ , Sokolov Maxim N. ^1,2

Организации

1	Nikolaev Institute of Inorganic Chemistry SB RAS, Novosibirsk 630090, Russia
2	Novosibirsk State University, Novosibirsk 630090, Russia
3	Serveis Centrals d’InstrumentacióCientífica, Universitat Jaume I, Av. Sos Baynat s/n, 12071 Castello, Spain

Информация о финансировании (1)

Российский научный фонд

14-13-00645

Reaction of [Nb6O19]8– with H6TeO6 in water gives telluropentaniobate [(OH)TeNb5O18]6– (1) as single product, which was isolated as Na+ and mixed Na+/K+ salts. Crystal structures were determined for Na6[(OH)TeNb5O18]·15H2O (Na6-1) and K6Na[Nb5.5{Te(OH)}0.5O18.5]·26H2O (K6Na-1). Formation of 1 was monitored with electrospray ionization mass spectrometry (ESI-MS) and 125Te NMR techniques. Capillary electrophoresis was used to calculate electrophoretic mobilities and radii of the anionic species in solutions of [(OH)TeNb5O18]6– and [Nb6O19]8– in borate buffer. No condensation or degradation products were detected. Reactions of 1 with {Cp*Rh}2+ sources gives 1:1 and 2:1 hybrid polyoxometalate, which are present in solution as a mixture of isomers, as detected by 125Te NMR. The isomerism is related to various possibilities of coordination of {Cp*Rh}2+ to different {M3O3} faces, relative to the unique Te atom. According to ESI-MS experiments in water and methanol, rapid redistribution of the organometallic fragments between the 1:1 and 2:1 complexes takes place. The 1:1 complexes are more stable in water, while 2:1 complexes dominate in methanol. X-ray structural analysis of the crystals isolated from 2:1 reaction mixture allowed identification of Na3[{Cp*Rh}2TeNb5O19]·24H2O (Cp*2Rh2-1) with two {Cp*Rh}2+ fragments capping the opposing faces of the Lindqvist anion.

Abramov P.A. , Zemerova T.P. , Moroz N.K. , Kompankov N.B. , Zhdanov A.A. , Tsygankova A.R. , Vicent C. , Sokolov M.N.
Synthesis and Characterization of [(OH)TeNb5O18](6-) in Water Solution, Comparison with [Nb6O19](8-)
Inorganic Chemistry. 2016. V.55. N4. P.1381-1389. DOI: 10.1021/acs.inorgchem.5b01806 WOS Scopus РИНЦ CAPlusCA OpenAlex

Поступила в редакцию:	7 авг. 2015 г.
Опубликована online:	4 февр. 2016 г.
Опубликована в печати:	15 февр. 2016 г.

Web of science:	WOS:000370395000007
Scopus:	2-s2.0-84959469687
РИНЦ:	26981030
Chemical Abstracts:	2016:208449
Chemical Abstracts (print):	164:277176
OpenAlex:	W2272385331

БД	Цитирований
Web of science	18
Scopus	17
OpenAlex	16