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Liu K, Zhang J, Huo S, Dong Q, Hao Z, Han Z, Lu GL, Lin J. Highly efficient oxidation of alcohols catalyzed by Ru(II) carbonyl complexes bearing salicylaldiminato ligands. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119224] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nandhini R, Venkatachalam G. Half-sandwich ruthenium(II) complexes containing O, N bidentate azo ligands: Synthesis, structure and their catalytic activity towards one-pot conversion of aldehydes to primary amides and transfer hydrogenation of ketones. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.05.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Sinha C. Azoimine Chelated Ruthenium(II)- and Osmium(II)-Carbonyl Complex Catalyzed Alcohol Oxidation Reaction. CURRENT ORGANOCATALYSIS 2019. [DOI: 10.2174/2213337206666190311130604] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Arylazoimidazole brings azoimine (-N=N-C=N-) chelating N(azo), N(imine) (abbreviated
- N, N/) centres and forms Ru(II) and Os(II) carbonyl complexes. These complexes act as catalysts
for the oxidation of alcohols to aldehydes/ketones by tertiary butyl hydro peroxide (ButOOH), hydrogen
peroxide (H2O2) and N-methylmorpholine-N-oxide (NMO) as oxygen sources. Different substituted
arylazoimidazoles such as 1-alkyl-2-(arylazo)imidazoles (RaaiR/), 1-alkyl-2-(naphthyl-α/β-
azo)imidazoles (α/β-NaiR) and (1-alkyl-2-{(o-thioalkyl)phenylazo}imidazole, SRaaiNR/) are used to
prepare Ru/Os-CO complexes. Ancillary ligands like hydride (H-), chloride (Cl-), triphenylphosphine
(PPh3) are used to monitor the catalytic efficiency of the complexes. Aromatic and aliphatic alcohols
like benzyl alcohol, 2-butanol, cyclopentanol, cyclohexanol, 1-phenylethanol, cinnamyl alcohol, diphenylmethanol,
are oxidized to the corresponding benzaldehyde, 2-butanone, cyclopentanone, cyclohexanone,
phenylacetone, cinamaldehyde, cyclopentanone, benzophenone, respectively. Different
physicochemical analyses (FT-IR, UV-Vis, Mass, NMR) suggest that the complexes react with an
oxidant to yield high valent ruthenium/osmium-oxo species (RuIV=O; OsIV=O), which is capable of
transferring the oxygen atom to alcohols. GC analysis accounts that percentage conversion order is as
follows : Cinnamyl alcohol > Cyclohexanol ~ 1-Phenylethanol > Diphenylmethanol > Cyclopentanol
> 2-Butanol > Benzyl alcohol. The oxidation efficiency of the oxidant follows the order : NMO >
ButOOH > H2O2. RuII complexes are more potent catalysts than OsII complexes. Out of three series
of RuII complexes, [RuCl(CO)(SMeaaiNEt)]ClO4 and [RuCl(CO)(SEtaaiNMe)]ClO4 showed highest
catalytic efficiency amongst 32 catalysts.
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Thirumal M, Ramesh M, Kaleeswaran D, Venkatachalam GS. Synthesis, Structure and Catalytic Oxidation of Ruthenium(III) Complexes Containing 1‐(Arylazo)naphthol Ligands Derived from
β
−Naphthol and Sterically Bulky Amines. ChemistrySelect 2018. [DOI: 10.1002/slct.201802340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Muniyappan Thirumal
- PG & Research Department of ChemistryGovernment Arts College, Dharmapuri- 636 705 Tamilnadu India
| | - Madhan Ramesh
- PG & Research Department of ChemistryGovernment Arts College, Dharmapuri- 636 705 Tamilnadu India
| | - Dhananjayan Kaleeswaran
- Department of ChemistryIndian Institute of Technology Bombay, Powai, Mumbai- 400 076 Maharashtra India
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Cobalt (II) Complexes with Schiff Base Ligands Derived from Terephthalaldehyde and ortho-Substituted Anilines: Synthesis, Characterization and Antibacterial Activity. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8030385] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hao Z, Li N, Yan X, Li Y, Zong S, Liu H, Han Z, Lin J. Ruthenium carbonyl complexes with pyridylalkanol ligands: synthesis, characterization and catalytic properties for aerobic oxidation of secondary alcohols. NEW J CHEM 2018. [DOI: 10.1039/c8nj00329g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Several new trinuclear ruthenium carbonyl complexes were synthesized and their application in aerobic oxidation of secondary alcohols was also established.
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Affiliation(s)
- Zhiqiang Hao
- National Demonstration Center for Experimental Chemistry Education
- The College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
- People's Republic of China
| | - Ning Li
- National Demonstration Center for Experimental Chemistry Education
- The College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
- People's Republic of China
| | - Xinlong Yan
- National Demonstration Center for Experimental Chemistry Education
- The College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
- People's Republic of China
| | - Ying Li
- National Demonstration Center for Experimental Chemistry Education
- The College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
- People's Republic of China
| | - Siqi Zong
- National Demonstration Center for Experimental Chemistry Education
- The College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
- People's Republic of China
| | - Huating Liu
- National Demonstration Center for Experimental Chemistry Education
- The College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
- People's Republic of China
| | - Zhangang Han
- National Demonstration Center for Experimental Chemistry Education
- The College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
- People's Republic of China
| | - Jin Lin
- National Demonstration Center for Experimental Chemistry Education
- The College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
- People's Republic of China
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Ruthenium carbonyl complex of a redox non-innocent ONS donor azophenol ligand: Electrochemistry, photophysical property, electronic structure and catalytic activity towards oxidation of alcohols. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2016.11.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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8
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Datta P, Sardar D, Panda U, Halder A, Manik NB, Chen CJ, Sinha C. Coumarinyl azoimidazolyl complexes of osmium(II) hydridocarbonyls: spectroscopic and structural characterization, oxidation catalysis, photovoltaic effect and density functional theory computation. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3435] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Papia Datta
- Department of Chemistry, Inorganic Chemistry Section; Jadavpur University; Kolkata 700032 India
- Department of Basic Science and Humanities; RCC Institute of Information Technology; Canal South Road, Beliaghata Kolkata 700015 India
| | - Dibakar Sardar
- Department of Chemistry, Inorganic Chemistry Section; Jadavpur University; Kolkata 700032 India
- Department of Chemistry; Dinabandhu Andrews College; Garia Kolkata 700084 India
| | - Uttam Panda
- Department of Chemistry, Inorganic Chemistry Section; Jadavpur University; Kolkata 700032 India
| | - Ajanta Halder
- Department of Physics; Jadavpur University; Kolkata 700032 India
| | | | - Chun-Jung Chen
- Life Science Group; National Synchrotron Radiation Research Centre; 101 Hsin Ann Road Hsinchu 30076 Taiwan
| | - Chittaranjan Sinha
- Department of Chemistry, Inorganic Chemistry Section; Jadavpur University; Kolkata 700032 India
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Mandal P, Lin CH, Brandão P, Mal D, Felix V, Pratihar JL. Synthesis, characterization, structure and catalytic activity of (NNN) tridentate azo-imine nickel(II), palladium(II) and platinum(II) complexes. Polyhedron 2016. [DOI: 10.1016/j.poly.2015.12.050] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Structure and photochromism of Zn(II) thiocyanato complexes of 1-alkyl-2-{(o-thioalkyl)phenylazo}imidazole. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.05.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Mohamed Subarkhan M, Ramesh R. Binuclear ruthenium(III) bis(thiosemicarbazone) complexes: synthesis, spectral, electrochemical studies and catalytic oxidation of alcohol. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 138:264-270. [PMID: 25498823 DOI: 10.1016/j.saa.2014.11.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 11/03/2014] [Accepted: 11/20/2014] [Indexed: 06/04/2023]
Abstract
A new series of binuclear ruthenium(III) thiosemicarbazone complexes of general formula [(EPh3)2(X)2Ru-L-Ru(X)2(EPh3)2] (where E=P or As; X=Cl or Br; L=NS chelating bis(thiosemicarbazone ligands) has been synthesized and characterized by analytical and spectral (FT-IR, UV-Vis and EPR). IR spectra show that the thiosemicarbazones behave as monoanionic bidentate ligands coordinating through the azomethine nitrogen and thiolate sulphur. The electronic spectra of the complexes indicate that the presence of d-d and intense LMCT transitions in the visible region. The complexes are paramagnetic (low spin d(5)) in nature and all the complexes show rhombic distortion around the ruthenium ion with three different 'g' values (gx≠gy≠gz) at 77K. All the complexes are redox active and exhibit an irreversible metal centered redox processes (Ru(III)-Ru(III)/Ru(IV)-Ru(IV); Ru(III)-Ru(III)/Ru(II)-Ru(II)) within the potential range of 0.38-0.86V and -0.39 to -0.66 V respectively, versus Ag/AgCl. Further, the catalytic efficiency of one of the complexes [Ru2Cl2(AsPh3)4(L1)] (4) has been investigated in the case of oxidation of primary and secondary alcohols into their corresponding aldehydes and ketones in the presence of N-methylmorpholine-N-oxide(NMO) as co-oxidant. The formation of high valent Ru(V)O species is proposed as catalytic intermediate for the catalytic cycle.
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Affiliation(s)
- M Mohamed Subarkhan
- School of Chemistry, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India
| | - R Ramesh
- School of Chemistry, Bharathidasan University, Tiruchirappalli 620 024, Tamil Nadu, India.
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Shoair AF, El-Bindary AA. Synthesis, spectral and catalytic dehydrogenation studies of ruthenium complexes containing NO bidentate ligands. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 131:490-496. [PMID: 24840490 DOI: 10.1016/j.saa.2014.04.132] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 04/03/2014] [Accepted: 04/14/2014] [Indexed: 06/03/2023]
Abstract
The synthesis and characterization of ruthenium mononuclear complexes containing NO bidentate ligands are reported. The complexes cis-[Ru(II)(bpy)2L](PF6)n (1a-c), [Ru(III)Cl(L)2(H2O)] (2a-b) and [Ru(III)Cl2(L)2]Cl (2c) were prepared by the reaction of cis-[Ru(II)Cl2(bpy)2]·2H2O (bpy=2,2'-bipyridine) and/or RuCl3·nH2O with the Ligands: 2-aminophenol (2-aph), 8-hydroxyquinoline (8-hq) and 4-aminoantipyrine (4-apy). These complexes were characterized by elemental analysis, spectroscopic (IR, UV-Vis, (1)H NMR, ESR) and magnetic susceptibility measurements. The ligand field parameters, Δo (splitting parameter), B (Racah parameter of interelectronic repulsion), and β (nephelauxetic ratio) were calculated. The redox properties were also investigated electrochemically by cyclic voltammetry. The complexes cis-[Ru(II)(bpy)2(8-hq)](PF6)2 (1b) and [Ru(III)Cl(8-hq)2(H2O)] (2b) have been investigated in conjunction with N-methylmorpholine-N-oxide (NMO) as co-oxidant for the catalytic dehydrogenation of benzyl amine, p-methyl benzylamine and p-nitrobenzylamine to their respective nitriles.
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Affiliation(s)
- A F Shoair
- Chemistry Department, Faculty of Science, Damietta University, 34517 Damietta, Egypt
| | - A A El-Bindary
- Chemistry Department, Faculty of Science, Damietta University, 34517 Damietta, Egypt.
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Sarkar SK, Jana MS, Mondal TK, Sinha C. Alcohol oxidation reactions catalyzed by ruthenium-carbonyl complexes of thioarylazoimidazoles. Appl Organomet Chem 2014. [DOI: 10.1002/aoc.3174] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shyamal Kumar Sarkar
- Department of Chemistry, Inorganic Chemistry Section; Jadavpur University; Kolkata 700032 India
| | - Mahendra Sekhar Jana
- Department of Chemistry, Inorganic Chemistry Section; Jadavpur University; Kolkata 700032 India
| | - Tapan Kumar Mondal
- Department of Chemistry, Inorganic Chemistry Section; Jadavpur University; Kolkata 700032 India
| | - Chittaranjan Sinha
- Department of Chemistry, Inorganic Chemistry Section; Jadavpur University; Kolkata 700032 India
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Jana S, Jana MS, Biswas S, Sinha C, Mondal TK. Synthesis, electronic structure and catalytic activity of ruthenium-iodo-carbonyl complexes with thioether containing NNS donor ligand. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.02.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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Synthesis, spectral, electrochemical and catalytic properties of Ru(III) Schiff base complexes containing N, O donors. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2013.12.048] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Jana S, Jana MS, Sarkar D, Paira MK, Mondal TK. Ruthenium carbonyl complexes of 3-(2-(methylthio)phenylazo)-4-hydroxy-3-penten-2-one: Synthesis, spectral characterization, electronic structure and catalytic activity. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.09.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Synthesis, characterization, electronic structure and catalytic activity of new ruthenium carbonyl complexes of N-[(2-pyridyl)methylidene]-2-aminothiazole. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.11.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Sarkar SK, Jana MS, Mondal TK, Sinha C. Use of a Ru/Os-CO-diiodide precursor to synthesize heteroleptic 1-alkyl-2-(arylazo)imidazole complexes: The structural characterization, electrochemistry and catalytic activity. Polyhedron 2013. [DOI: 10.1016/j.poly.2012.11.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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