TY - JOUR ID - 87065 TI - Vanadium(IV) Schiff base Complex: Synthesis, Characterization, Crystal Structure and Thermal Decomposition into V2O5 Particles JO - Chemical Methodologies JA - CHEMM LA - en SN - 2645-7776 AU - Dehno Khalaji, Aliakbar AU - Ghorbani, Maryam AU - Peyghoun, Seyyed Javad AU - Feizi, Norollah AU - Akbari, Alireza AU - Hornfeck, Wolfgang AU - Dusek, Michal AU - Eigner, Vaclav AD - Department of Chemistry, Faculty of Science, Golestan University, Gorgan, Iran AD - Department of Chemistry, Payame Noor University, PO Box 19395-3697 Tehran, Iran AD - Institute of Physic of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic Y1 - 2019 PY - 2019 VL - 3 IS - 6 SP - 643 EP - 650 KW - Vanadium(IV) complex KW - Distorted square pyramid KW - Spectroscopy KW - Thermogravimetric analysis DO - 10.33945/SAMI/CHEMM.2019.6.3 N2 - Vanadium(IV) complex [VO((MeO-bph)2en)] (1), (MeO-bph)2en=N,N¢-bis(2-hydroxy-4-methoxybenzophenone)-1,2-ethanediamine, was synthesized and characterized by elemental analyses (CHN), FT-IR spectroscopy, thermogravimetry, SEM and single crystal X-ray diffraction. The title complex 1 was prepared by the reaction of VO(acac)2, 1,2-ethanediamine and 2-hydroxy-4-methoxybenzophenone (molar ratio 1:1:2). The single-crystal X-ray analysis of 1 shows that the vanadium(IV) ion is located in a distorted square pyramid (N2O3) environment with the tetradentate Schiff base ligand coordinated in equatorial positions and one oxygen atom in the axial position. Thermogravimetric analysis shows that the complex 1 decomposes in two stages. Finally, the complex was calcinated at 500 °C for 3 h and the V2O5 products characterized by FT-IR and SEM. UR - https://www.chemmethod.com/article_87065.html L1 - https://www.chemmethod.com/article_87065_a44a215910428ff4a0c7841a292f24a1.pdf ER -