Structural studies and physico-chemical properties of new oxodiperoxomolybdenum complexes with nicotinic acid

2013
journal article
article
7
dc.abstract.enThree 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.pl
dc.affiliationWydział Chemii : Zakład Krystalochemii i Krystalofizykipl
dc.contributor.authorSzymańska, Annapl
dc.contributor.authorNitek, Wojciech - 130975 pl
dc.contributor.authorMucha, Dariuszpl
dc.contributor.authorKarcz, Robertpl
dc.contributor.authorPamin, Katarzynapl
dc.contributor.authorPołtowicz, Janpl
dc.contributor.authorŁasocha, Wiesław - 130062 pl
dc.date.accessioned2015-06-24T07:18:16Z
dc.date.available2015-06-24T07:18:16Z
dc.date.issued2013pl
dc.description.admin[AU ]Łasocha, Wiesław [SAP11010638]pl
dc.description.physical39-46pl
dc.description.volume60pl
dc.identifier.doi10.1016/j.poly.2013.05.020pl
dc.identifier.eissn1873-3719pl
dc.identifier.issn0277-5387pl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/10166
dc.languageengpl
dc.language.containerengpl
dc.rights.licencebez licencji
dc.subject.encatalysispl
dc.subject.enperoxo complexpl
dc.subject.enX-ray diffractionpl
dc.subject.enthermal decompositionpl
dc.subject.enmolybdatespl
dc.subtypeArticlepl
dc.titleStructural studies and physico-chemical properties of new oxodiperoxomolybdenum complexes with nicotinic acidpl
dc.title.journalPolyhedronpl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
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.
dc.affiliationpl
Wydział Chemii : Zakład Krystalochemii i Krystalofizyki
dc.contributor.authorpl
Szymańska, Anna
dc.contributor.authorpl
Nitek, Wojciech - 130975
dc.contributor.authorpl
Mucha, Dariusz
dc.contributor.authorpl
Karcz, Robert
dc.contributor.authorpl
Pamin, Katarzyna
dc.contributor.authorpl
Połtowicz, Jan
dc.contributor.authorpl
Łasocha, Wiesław - 130062
dc.date.accessioned
2015-06-24T07:18:16Z
dc.date.available
2015-06-24T07:18:16Z
dc.date.issuedpl
2013
dc.description.adminpl
[AU ]Łasocha, Wiesław [SAP11010638]
dc.description.physicalpl
39-46
dc.description.volumepl
60
dc.identifier.doipl
10.1016/j.poly.2013.05.020
dc.identifier.eissnpl
1873-3719
dc.identifier.issnpl
0277-5387
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/10166
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights.licence
bez licencji
dc.subject.enpl
catalysis
dc.subject.enpl
peroxo complex
dc.subject.enpl
X-ray diffraction
dc.subject.enpl
thermal decomposition
dc.subject.enpl
molybdates
dc.subtypepl
Article
dc.titlepl
Structural studies and physico-chemical properties of new oxodiperoxomolybdenum complexes with nicotinic acid
dc.title.journalpl
Polyhedron
dc.typepl
JournalArticle
dspace.entity.type
Publication

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