Research output: Contribution to journal › Article › peer-review
Hyphenated techniques in speciation analysis of polyoxometalates : identification of individual [PMo12−xVxO40]−3−x (x = 1-3) in the reaction mixtures by high performance liquid chromatography and atomic emission spectrometry with inductively coupled plasma. / Shuvaeva, O. V.; Zhdanov, A. A.; Romanova, T. E. et al.
In: Dalton Transactions, Vol. 46, No. 11, 14.03.2017, p. 3541-3546.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Hyphenated techniques in speciation analysis of polyoxometalates
T2 - identification of individual [PMo12−xVxO40]−3−x (x = 1-3) in the reaction mixtures by high performance liquid chromatography and atomic emission spectrometry with inductively coupled plasma
AU - Shuvaeva, O. V.
AU - Zhdanov, A. A.
AU - Romanova, T. E.
AU - Abramov, P. A.
AU - Sokolov, M. N.
PY - 2017/3/14
Y1 - 2017/3/14
N2 - Unambiguous identification of polyoxometalate (POM) species generated in self-assembly reactions in solution is rather problematic due to close similarity of their properties such as solubility and spectral characteristics. The situation is made more complex by protonation equilibria (which can change their analytical signals) and the lack of individual compounds to serve as standards for individual members of these mixtures. In the present work a new approach to the study of such POMs has been suggested, taking molybdovanadates [PMo12−xVxO40]−3−x as a model. The key feature of this approach consists of generation of so-called “conditional model systems” that include most of the expected components of a mixture formed by self-assembly, tracked down by reliable detection techniques, e.g., 51V NMR-spectroscopy in this particular case. Then the proposed composition of the mixture is verified and corrected by means of high-performance liquid chromatography coupled with inductively coupled plasma atomic emission spectrometry (HPLC-ICP-AES).
AB - Unambiguous identification of polyoxometalate (POM) species generated in self-assembly reactions in solution is rather problematic due to close similarity of their properties such as solubility and spectral characteristics. The situation is made more complex by protonation equilibria (which can change their analytical signals) and the lack of individual compounds to serve as standards for individual members of these mixtures. In the present work a new approach to the study of such POMs has been suggested, taking molybdovanadates [PMo12−xVxO40]−3−x as a model. The key feature of this approach consists of generation of so-called “conditional model systems” that include most of the expected components of a mixture formed by self-assembly, tracked down by reliable detection techniques, e.g., 51V NMR-spectroscopy in this particular case. Then the proposed composition of the mixture is verified and corrected by means of high-performance liquid chromatography coupled with inductively coupled plasma atomic emission spectrometry (HPLC-ICP-AES).
KW - METAL-OXIDE ANALOGS
KW - MASS-SPECTROMETRY
KW - TRISUBSTITUTED HETEROPOLYTUNGSTATES
KW - CAPILLARY-ELECTROPHORESIS
KW - KEGGIN-TYPE
KW - ICP-OES
KW - COMPLEXES
KW - POLYOXOANIONS
KW - PHOSPHORUS
KW - SEPARATION
UR - http://www.scopus.com/inward/record.url?scp=85015634580&partnerID=8YFLogxK
U2 - 10.1039/c6dt04843a
DO - 10.1039/c6dt04843a
M3 - Article
C2 - 28240339
AN - SCOPUS:85015634580
VL - 46
SP - 3541
EP - 3546
JO - Dalton Transactions
JF - Dalton Transactions
SN - 1477-9226
IS - 11
ER -
ID: 10274111