Synergism between molybdenum and lanthanum in the disproportionation of hydrogen peroxide into singlet oxygen

Journal of the American Chemical Society

Volumn 127, Issue 49, 2005, Pages 17166-17167

  Wahlen, Joos ^a   De Vos, Dirk E ^a   Groothaert, Marijke H ^a   Nardello, Véronique ^b   Aubry, Jean Marie ^b   Alsters, Paul L ^c   Jacobs, Pierre A ^a  

^a UNIVERSITY OF LEUVEN   (Belgium)

^b UNITÉ DE CATALYSE ET DE CHIMIE DU SOLIDE   (France)

^c Catalysis and Development   (Netherlands)

Author keywords

[No Author keywords available]

Indexed keywords

HYDROGEN PEROXIDE; LANTHANUM; MOLYBDENUM; SINGLET OXYGEN;

ARTICLE; CATALYSIS; COMPLEX FORMATION; HYDROLYSIS; PEROXIDATION; REACTION ANALYSIS; REACTION TIME;

EID: 29044449538     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja0547026     Document Type: Article

References (21)

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13. The combined application of several metals, leading to regio-, chemo-, or stereoselectivity and/or activity that differs significantly from a strictly additive effect, is often referred to as synergism. For example, see: Li, C.; Widjaja, E.; Garland, M. J. Am. Chem. Soc. 2003, 125, 5540-5548.
14. Baes, C. F., Jr.; Mesmer, R. E. The Hydrolysis of Cations: Wiley-Interscience: New York, 1976; pp 129-146.
15. No detailed kinetic analysis was carried out because of the inherent complexity of the system. Moreover, since La occurs as an ill-defined hydroxide gel, unambiguous identification of the catalytically active species is extremely difficult, if at all possible.
16. Polyoxometalate anions bind lanthanide cations to form materials with extended metal-oxygen frameworks. In contrast to the alkaline pH used in this work, these coordination complexes are typically formed at acidic to neutral pH. For example, see: Peacock, R. D.; Weakley, T. J. R. J. Chem. Soc. A 1971, 1836-1839.
17. For isolated peroxo-lanthanide complexes, see: (a) Bradley, D. C.; Ghotra, J. S.; Hart, F. A.; Hursthouse, M. B.; Raithby, P. R. J. Chem. Soc., Chem. Commun. 1974, 40-41.
18. (b) Djordjevic, C.; Vuletic, N. Inorg. Chem. 1980, 19, 3049-3053.
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20. 2 show high phosphodiester cleavage activity. For example, see: Takasaki, B. K.; Chin, J. J. Am. Chem. Soc. 1995, 117, 8582-8585.
21. La complexes and tert-butyl hydroperoxide are used for the asymmetric epoxidation of enones. For example, see: Nemoto, T.; Ohshima, T.; Yamaguchi, K.; Shibasaki, M. J. Am. Chem. Soc. 2001, 123, 2725-2732.