Synthesis, characterization and catalytic activities of ruthenium complexes containing triphenylphosphine/triphenylarsine and tetradentate Schiff bases

Karvembu, Ramasamy; Hemalatha, Somasundaram; Prabhakaran, R.; Natarajan, K.

doi:10.1016/s1387-7003(03)00021-2

Cited by 102 publications

(60 citation statements)

References 20 publications

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“…On complexation, this band has been shifted to higher frequency (1318-1304 cm −1 ), showing that the other coordination site is through the phenolic oxygen atom. 23 This is further supported by the disappearance of broad band at 3000 cm −1 due to O-H in the complexes. that the third coordination site is a phenolic sulfur atom.…”

Section: Region Due To ν(S-h)mentioning

confidence: 58%

“…21 Our research group has also reported some Ru-PPh 3 complexes as catalysts for oxidation of alcohols in *Correspondence to: K. Natarajan, Department of Chemistry, Bharathiar University, Coimbatore 641 046, India. E-mail: k natraj6@yahoo.com the presence of NMO 22,23 and air. 24,25 In continuation of this, we herein describe synthesis, characterization and catalytic properties of Ru(III) complexes containing PPh 3 or AsPh 3 as well as tridentate Schiff bases.…”

Section: Introductionmentioning

confidence: 99%

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Synthetic and catalytic investigations of ruthenium(III) complexes with triphenylphosphine/triphenylarsine and tridentate Schiff base

Priyarega

Prabhakaran

Aranganayagam

et al. 2007

Applied Organom Chemis

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The synthesis and characterization of several hexa-coordinated ruthenium(III) complexes of the type [RuCl(PPh 3 ) 2 (L)] (L = dibasic tridentate ligand derived by the condensation of salicylaldehyde/ovanillin with o-aminophenol/o-aminothiophenol) are reported. IR, electronic, EPR spectral data and redox bahaviour of the complexes are discussed. An octahedral geometry has been tentatively proposed for all the complexes. The new complexes were found to be effective catalysts for the oxidation of benzyl alcohol and cyclohexanol to benzaldehyde and cyclohexanone respectively using N-methylmorpholine-N-oxide as a co-oxidant.

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Section: Region Due To ν(S-h)mentioning

confidence: 58%

Section: Introductionmentioning

confidence: 99%

Synthetic and catalytic investigations of ruthenium(III) complexes with triphenylphosphine/triphenylarsine and tridentate Schiff base

Priyarega

Prabhakaran

Aranganayagam

et al. 2007

Applied Organom Chemis

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“…7 The synthesis and biological activities of some ruthenium complexes containing tetradentete Schiff base ligands have been reported. 8,9 Herein, we are reporting the preparation, spectral and electrochemical characterization and catalytic activity of a series of new Ru(III) complexes containing teteradentate Schiff base ligands. The general structure of the Schiff base ligands are given in Scheme 1.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, spectral, electrochemical and catalytic studies of new Ru(III) tetradentate Schiff base complexes

Manivannan¹,

Prabhakaran²,

Balasubramanian³

et al. 2007

Applied Organom Chemis

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The synthesis and characterization of several hexa-coordinated ruthenium(III) Schiff base complexes of the type [RuX(EPh 3 )(L)] (X = Cl or Br; E = P or As; L = dianion of the tetradentate Schiff base) are reported. IR, EPR, electronic spectra and cyclic voltammetric data of the complexes are discussed. An octahedral geometry has been tentatively proposed for all of these complexes. The new complexes have been subjected to catalytic activity in the reaction of oxidation of alcohols in the presence of N-methylmorpholine-N-oxide.

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“…Schiff bases with donors (N, O, S, etc.) have structural similarities with natural biological systems and imports in elucidating the mechanism of transformation reaction in biological systems due to presence of imine (-N=CH-) group [2][3][4][5][6][7][8][9][10]. Schiff base complexes have been used as drugs and they possess a wide variety of antimicrobial activity against bacteria, fungi and certain type of tumors [11,12].…”

Section: Introductionmentioning

confidence: 99%

Convenient and mild synthesis and characterisation of some new Schiff bases

Naeimi¹,

Nazifi²

2012

Bull. Chem. Soc. Eth.

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ABSTRACT. Some new Schiff bases were synthesized by the condensation between 2-hydroxy-1-naphthaldehyde and various diamines in 2:1 molar ratio. These pure products were prepared in methanol solution under mild reaction conditions to afford good to high yields. The structures of the products have been characterized by several techniques using elemental analysis (CHN), FT-IR, 1 H NMR, 13 C NMR and mass spectra.

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Synthesis, characterization and catalytic activities of ruthenium complexes containing triphenylphosphine/triphenylarsine and tetradentate Schiff bases

Cited by 102 publications

References 20 publications

Synthetic and catalytic investigations of ruthenium(III) complexes with triphenylphosphine/triphenylarsine and tridentate Schiff base

Synthetic and catalytic investigations of ruthenium(III) complexes with triphenylphosphine/triphenylarsine and tridentate Schiff base

Synthesis, spectral, electrochemical and catalytic studies of new Ru(III) tetradentate Schiff base complexes

Convenient and mild synthesis and characterisation of some new Schiff bases

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