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Structural studies and physico-chemical properties of new oxodiperoxomolybdenum complexes with nicotinic acid
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Structural studies and physico-chemical properties of new oxodiperoxomolybdenum complexes with nicotinic acid
Bibliographic description
| title: | Structural studies and physico-chemical properties of new oxodiperoxomolybdenum complexes with nicotinic acid |
| author: | Szymańska Anna, Nitek Wojciech  , Mucha Dariusz, Karcz Robert, Pamin Katarzyna, Połtowicz Jan, Łasocha Wiesław
|
| journal title: | Polyhedron |
| volume: | 60 |
| date of publication : | 2013 |
| pages: | 39-46 |
| ISSN: |
0277-5387 |
| eISSN: |
1873-3719 |
| DOI: | |
| language: | English |
| journal language: | English |
| abstract in English: | Three new oxodiperoxomolybdenum complexes with nicotinic acid have been synthesized and charac- terized with the use of single-crystal analysis, XRPD versus temperature, TG/DSC, SEM and IR spectros- copy. The investigated compounds are: 1 – (NH 4 ) 2 [MoO(O 2 ) 2 .N-nicO] 2 , 2 – (nicH) 2 [MoO(O 2 ) 2 .N- nicO] 2 2(H 2 O), 3 – MoO(O 2 ) 2 (H 2 O)nicH; (N-nicO, nicH denote nicotinic acid N-oxide and protonated nicotinic acid, respectively). Compounds 1, 2 are salts of the same acid with cyclic dinuclear anions, whereas compound 3 can be regarded as an inner salt. Compounds 1–3 are stable in ambient conditions, the respective percentages of oxygen in peroxo groups are 19.21%, 14.06% and 20.19%, respectively. Above 125 ° C peroxo compounds 1–3 decompose, forming nanometric MoO 2 and MoO 3 . TG/DSC curves reveal clear effects connected with the release of oxygen and strong exothermic effects connected with final loss of organic components. All the investigated complexes were found to be active in the oxidation of cyclooctane to cyclooctanone and cyclooctanol with molecular oxygen. |
| keywords in English: | catalysis, peroxo complex, X-ray diffraction, thermal decomposition, molybdates |
| affiliation: | Wydział Chemii : Zakład Krystalochemii i Krystalofizyki |
| type: | journal article |
| subtype: | academic paper |
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Projekt „Repozytorium otwartego dostępu do dorobku naukowego i dydaktycznego UJ” współfinansowany w ramach poddziałania 2.3.1 „Cyfrowe udostępnianie zasobów nauki” Programu Operacyjnego Polska Cyfrowa z Europejskiego Funduszu Rozwoju Regionalnego i budżetu państwa na podstawie umowy o dofinansowanie nr POPC.02.03.01-00-0030/17-00
