Abstract
The ligands 2-((2-aminophenyl)diazenyl)phenol, HOL1-NH2, 1a; 2-((2-aminophenyl)diazenyl)-5-methylphenol, HOL2-NH2, 1b; and 2-((2-aminophenyl) diazenyl)-5-chlorophenol, HOL3-NH2, 1c, which are abbreviated as HOL-NH2, 1, afforded the complexes of compositions [(OL-NH)Pd(PPh3)], 2, and [(OL-NH)Ru(CO)(PPh3)2], 3, upon reaction with Na2PdCl4 and Ru(CO)3(PPh3)3 respectively. In all the complexes the metals ions, Pd(II) or Ru(II), are coordinated by deprotonated ligand (OL-NH)2- in tridentate (N, N, O) fashion. X-ray structures of [(OL2-NH)Pd(PPh3)], 2b, and [(OL1-NH)Ru(CO)(PPh3)2], 3a, were determined to confirm the molecular structures. The cyclic voltammograms of [(OL-NH)Ru(CO)(PPh3)2] exhibited two quasi reversible oxidative response near 0.25 and 1.12 V vs. SCE. The nature of HOMO as obtained by DFT calculations has been inspected to have an insight into the redox orbitals. The newly synthesized [(OL-NH)Pd(PPh3)], 2a, complexes exhibited catalytic activity toward the Suzuki, Heck, Cyanation and amination reactions. Catalytic activity of complex [(OL1-NH)Ru(CO)(PPh3)2], 3a, was examined for the conversion of ketones to corresponding alcohols by transfer hydrogen reactions.
Original language | English |
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Pages (from-to) | 122-131 |
Number of pages | 10 |
Journal | Inorganica Chimica Acta |
Volume | 429 |
DOIs | |
State | Published - 1 Apr 2015 |
Keywords
- 2-((2-Aminophenyl)azo)phenol
- C-C coupling reaction
- C-N coupling reactions
- Crystal structure
- Hydrogen transfer reaction
- Pd(II) Ru(II)
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CCDC 1010802: Experimental Crystal Structure Determination
Pattanayak, P. (Creator), Parua, S. P. (Creator), Patra, D. (Creator), Lai, C. (Creator), Brandão, P. (Creator), Felix, V. (Creator) & Chattopadhyay, S. (Creator), The Cambridge Structural Database, 2015
DOI: 10.5517/cc12xtjb, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/cc12xtjb&sid=DataCite
Dataset
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CCDC 1010803: Experimental Crystal Structure Determination
Pattanayak, P. (Creator), Parua, S. P. (Creator), Patra, D. (Creator), Lai, C. (Creator), Brandão, P. (Creator), Felix, V. (Creator) & Chattopadhyay, S. (Creator), The Cambridge Structural Database, 2015
DOI: 10.5517/cc12xtkc, http://www.ccdc.cam.ac.uk/services/structure_request?id=doi:10.5517/cc12xtkc&sid=DataCite
Dataset