Skip navigation
Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3495
Full metadata record
DC FieldValueLanguage
dc.contributor.authorGhosh, Kaushik-
dc.contributor.authorKumar S.-
dc.contributor.authorKumar R.-
dc.contributor.authorSingh U.P.-
dc.date.accessioned2020-10-06T14:27:02Z-
dc.date.available2020-10-06T14:27:02Z-
dc.date.issued2012-
dc.identifier.citationEuropean Journal of Inorganic Chemistry (2012), (6): 929-938-
dc.identifier.issn14341948-
dc.identifier.urihttps://doi.org/10.1002/ejic.201101026-
dc.identifier.urihttp://repository.iitr.ac.in/handle/123456789/3495-
dc.description.abstractCyclometalated Ru III complexes [Ru(L SB1)(PPh 3) 2Cl] (1), [L SB1H 2 = 2-(3-nitrobenzylideneamino)phenol], and [Ru(L SB2)(PPh 3) 2Cl] (2), [L SB2H 2 = 4-methyl-2-(3-nitrobenzylideneamino)phenol and H = dissociable protons], were synthesized by site-specific orthometallation and characterized by spectroscopic and electrochemical studies. Complexes 1 and 2 were treated with in situ generated nitric oxide (NO), derived from an acidified nitrite solution, which afforded the ruthenium nitrosyl complexes [Ru(L SB3H)(PPh 3) 2(NO)Cl](ClO 4) (1a) and [Ru(L BOX)(PPh 3) 2(NO)Cl](ClO 4) (2a), respectively, [L SB3H 2 = 4-nitro-2-(3- nitrobenzylideneamino)phenol, L BOXH = 5-methyl-7-nitro-2-(3- nitrophenyl)benzoxazole and H = dissociable protons]. Complexes 1a and 2a were found to be diamagnetic and were characterized by 1H NMR and 31P NMR spectral studies. Both 1a and 2a exhibited V NO in the range 1800-1835 cm -1 in the IR spectra. Molecular structures of ω-aryl ruthenium nitrosyl complexes 1a·CH 3OH· 2CH 2Cl 2·H 2O and 2a·2CH 2Cl 2 were determined by X-ray crystallography. Nitrosylation at the metal centre, oxidative cyclization and ligand nitration were authenticated from the crystal structures. The redox properties of the metal centre were investigated. In both the nitrosyl complexes 1a and 2a, coordinated NO was found to be photolabile. The amount of photoreleased NO was estimated by using the Griess reagent and the data was compared with that obtained from sodium nitroprusside (SNP). The role of the nitro group in the ligand frame was discussed with regard to orthometallation, NO reactivity and photolability. Ruthenium(III) cyclometalates were synthesized by site-specific orthometallation. The reactivity of nitric oxide was investigated and the photolability of nitric oxide in newly synthesized ruthenium nitrosyl complexes was examined. The amount of photoreleased NO was estimated by using a Griess reagent in UV as well as in visible light. The role of the nitro group in the ligand frame was scrutinized. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.-
dc.language.isoen_US-
dc.relation.ispartofEuropean Journal of Inorganic Chemistry-
dc.subjectMetalation-
dc.subjectPhotolability-
dc.subjectRedox chemistry-
dc.subjectRuthenium-
dc.titleRuthenium(III) cyclometalates obtained by site-specific orthometallation and their reactivity with nitric oxide: Photoinduced release and estimation of no liberated from the ruthenium nitrosyl complexes-
dc.typeArticle-
dc.scopusid57204513823-
dc.scopusid7405769266-
dc.scopusid57208685185-
dc.scopusid57203181883-
dc.affiliationGhosh, K., Department of Chemistry, Indian Institute of Technology, Roorkee, Roorkee 247667, Uttarakhand, India-
dc.affiliationKumar, S., Department of Chemistry, Indian Institute of Technology, Roorkee, Roorkee 247667, Uttarakhand, India-
dc.affiliationKumar, R., Department of Chemistry, Indian Institute of Technology, Roorkee, Roorkee 247667, Uttarakhand, India-
dc.affiliationSingh, U.P., Department of Chemistry, Indian Institute of Technology, Roorkee, Roorkee 247667, Uttarakhand, India-
dc.description.correspondingauthorGhosh, K.; Department of Chemistry, Indian Institute of Technology, Roorkee, Roorkee 247667, Uttarakhand, India; email: ghoshfcy@iitr.ernet.in-
Appears in Collections:Journal Publications [CY]

Files in This Item:
There are no files associated with this item.
Show simple item record


Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.