Naslov
Molybdenum(VI) Oxalato Complexes

Autori
Cindrić, Marina ; Devčić, Maja ; Kamenar, Boris ; Strukan, Neven

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts / Leban, Ivan ; Petrovčič, Nina - Radenci : Slovenian crystallographic Society, 1998, 44-44

Skup
Seventh Slovenian-croatian Crystallographic Meeting

Mjesto i datum
Radenci, Slovenija, 18.06.1998. - 20.06.1998

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
crystal structure; molybdenum(VI) complexes; oxalato

Sažetak
As part of our research on molybdenum complexes a series of oxalato molybdenum(VI) complexes with alkali metal cations has been prepared. Compound K_2[MoO_3(C_2O_4)]ˇ H_2O (I), with a polymeric anion {[MoO_3(C_2O_4)]^2^-}_n, was obtained from MoO_3 and K_2C_2O_4ˇH_2O in water (pH = 6), whereas K_2[Mo_2O_5(C_2O_4)_2(H_2O)_2] (II), with a binuclear complex anion was prepared by the reaction of MoO_3, H_2C_2O_4ˇ2H_2O and KCl (pH = 2). The analogous rubidium Rb_2[Mo_2O_5(C_2O_4)_2(H_2O)_2] (III) and caesium Cs_2[Mo_2O_5(C_2O_4)_2(H_2O)_2] (IV) salts, but not sodium, were also prepared under similar conditions. All compounds were characterized by chemical analysis, thermogravimetric analysis, infrared and EPR spectra, and X-ray structure analysis. When exposed to the UV radiation the colourless transparent crystals of compounds (II), (III) and (IV) change their colour to green, with molybdenum reduced to the oxidation state +5.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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