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A new oxidovanadium(IV) Schiff base complex containing asymmetric tetradentate ONN′O′ Schiff base ligand: synthesis, characterization, crystal structure determination, thermal study and catalytic activity
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SYSNO ASEP 0451562 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title A new oxidovanadium(IV) Schiff base complex containing asymmetric tetradentate ONN′O′ Schiff base ligand: synthesis, characterization, crystal structure determination, thermal study and catalytic activity Author(s) Grivani, G. (IR)
Ghavami, A. (IR)
Eigner, Václav (FZU-D) RID, ORCID
Dušek, Michal (FZU-D) RID, ORCID, SAI
Khalaji, A.D. (IR)Source Title Chinese Chemical Letters. - : Elsevier - ISSN 1001-8417
Roč. 26, č. 6 (2015), s. 779-784Number of pages 6 s. Language eng - English Country US - United States Keywords oxidovanadium(IV) ; Schiff base ; crystal structure ; nanoparticle ; epoxidation Subject RIV CC - Organic Chemistry R&D Projects GA14-03276S GA ČR - Czech Science Foundation (CSF) Institutional support FZU-D - RVO:68378271 UT WOS 000357224900032 EID SCOPUS 84937403900 DOI 10.1016/j.cclet.2015.03.014 Annotation After synthesis of an asymmetric tetradentate ONN0O0 Schiff base ligand (H2L) followed by reaction of the synthesized H2L with an equimolar mixture of methanolic solutions of the VO(acac)2, a new oxidovanadium(IV) Schiff base complex (VOL) was synthesized. The Schiff base ligand and its complex were characterized by FT-IR and UV–vis spectra and C, H, N analysis. The crystal structure of VOL was also determined by single crystal X-ray analysis. The VOL complex crystallizes in monoclinic space group Cc. The Schiff base ligand acts as a tetradentate ligand through its two iminic nitrogens and two phenolic and acetylacetonate oxygens. Thermogravimetric analysis of the VOL showed that it decomposes in two steps and converts to mixed vanadium oxides at 477 8C. In addition, thermal decomposition of the VOL complex in air at 660 8C leads to formation of V5O5 nanoparticles with the average size estimated from XRD 49 nm. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2016
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