@article { ISI:000264437500011,
	title = {Redox and selective oxidation properties of Mn complexes grafted on SBA-15},
	journal = {Catalysis Today},
	volume = {141},
	number = {1-2},
	year = {2009},
	note = {18th National Symposium and Indo-US Seminar on Catalysis, Indian Inst Petroleum, Dehradun, INDIA, APR 16-18, 2007},
	month = {MAR},
	pages = {66-71},
	publisher = {Catalysis Soc India; Petrotech Soc; Indo US Sci \& Technol Forum},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>Manganese complexes of 5,10,15,20-tetraphenylporphyrin (Mn(TPP)Cl) were grafted on SBA-15 functionalized with propyl-amine, -thiol and -sulfonic acid groups. The acido-basic properties of the support influenced the oxidation state, redox behavior and selective oxidation properties of the Mn complexes. Acidic supports (SBA-15-pr-SH and SBA-15-pr-SO(3)H) promoted the reduction of Mn ions in Mn-TPP complexes from 3+ to 2+ oxidation state. A similar behavior was found also when Mn(Salen)Cl complexes were immobilized on those supports. However, the extent of such facile reduction was more in the case of Mn-TPP than in Mn-Salen complexes. The former exhibited superior catalytic activity (turnover frequency) than the latter-type Mn complexes in regio-, stereo- and chemoselective oxidation of R-(+)-limonene with molecular oxygen (1 atm) at ambient temperatures. The catalytic oxidation activity correlates with the redox behavior of the grafted Mn complexes. (c) 2008 Elsevier B.V. All rights reserved.</p>},
	keywords = {Grafted manganese complexes, Mn(Salen)Cl, Mn(TPP)Cl, Organo-functionalized SBA-15, Redox behavior of Mn, Selective oxidation of limonene},
	issn = {0920-5861},
	doi = {10.1016/j.cattod.2008.03.014},
	author = {Saikia, Lakshi and Srinivas, D.}
}
