Synthesis, solution and crystal structures of dinuclear vanadium(V) oxo monoperoxo complexes with mandelic acid: (NR4)2[V2O2(O2)2(mand)2] . xH2O [R=H, Me, Et; MAND=mandelato(2-)=C8H6O3 2-]

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F04%3A00009932" target="_blank" >RIV/00216224:14310/04:00009932 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Synthesis, solution and crystal structures of dinuclear vanadium(V) oxo monoperoxo complexes with mandelic acid: (NR4)2[V2O2(O2)2(mand)2] . xH2O [R=H, Me, Et; MAND=mandelato(2-)=C8H6O3 2-]

Original language description

Vanadium(V) oxo peroxo mandelato complexes were prepared from aqueous solution and characterized by elemental analysis, IR, UV-Vis and 51V NMR spectroscopies. The single crystal X-ray studies of (NMe4)2[V2O2 (O2)2(R,S-mand)2].6.5H2O (3), (NMe4)(NH4)[V2O2(O2)2(R,S-mand)2].2H2O (4) and (NEt4)2[V2O2(O2)2(R-mand)2] (8) revealed that the mandelato ligand behaves as a bidentate chelator adopting the (O-, COO-) donor set. The complex anions in structures of 3 and 8 contain a dinuclear V2O2 core with cyclic arrangement of two vanadium atoms and two hydroxyl oxygen atoms from the bridging mand ligands. Each vanadium atom is coordinated by six oxygen atoms arising from two hydroxyl and one carboxyl groups, 2-peroxo ligand and one end-bonded oxo ligand. The coordination polyhedron can be described as distorted pentagonal pyramid. The structure of 4 is unique as it contains in the unit cell differently coordinated water molecules in two types of dinuclear anions: [V2O2(O2)2(R-mand)2(H2O)]2-, with

Czech name

Syntéza, roztok a krystal. struktura 2jaderného oxo-peroxovanadičnatého komplexu s kyselinou mandelátovou: (NR4)2[V2O2(O2)2(mand)2] . xH2O [R=H, Me, Et; MAND=mandelato(2-)=C8H6O3 2-].

Czech description

2jaderný oxo-peroxovanadičnatý komplex s kyselinou mandelátovou byl připraven z vodného roztoku a charakterizován element. analýzou, IR, UV-Vis, 51V NMR a rtg. strukturní analýzou.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CA - Inorganic chemistry

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2004

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Polyhedron

ISSN

0277-5387

e-ISSN

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Volume of the periodical

23

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

655-663

UT code for WoS article

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EID of the result in the Scopus database

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