Kumar, Prashant ; Singh, Ashish Kumar ; Sharma, Sanjeev ; Pandey, Daya Shankar (2009) Structures, preparation and catalytic activity of ruthenium cyclopentadienyl complexes based on pyridyl-phosphine ligand Journal of Organometallic Chemistry, 694 (22). pp. 3643-3652. ISSN 0022-328X
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.jorganchem.2009.07.011
Abstract
Ruthenium complexes [(η5-C5H5)Ru(k1-P-PPh2Py)(PPh3)Cl] (1) and [(η5-C5H5)Ru(κ2-P-N-PPh2Py)(PPh3)]+ (1a) containing diphenyl-2-pyridylphosphine (PPh2Py) are reported. Coordinated PPh2Py in the complex [(η5-C5H5)Ru(κ1-P-PPh2Py)(PPh3)Cl] (1) exhibits monodentate behavior. In presence of NH4PF6 in methanol at room temperature it afforded chelated complex [(η5-C5H5)Ru(κ2-P,N-PPh2Py)(PPh3)]+ (1a). Further, 1 reacted with various species viz., CH3CN, NaCN, NH4SCN and NaN3 to afford cationic and neutral complexes [(η5-C5H5)Ru(κ1-P-PPh2Py)(PPh3)L]+ and [(η5-C5H5)Ru(κ1-P-PPh2Py)(PPh3)L] [L=CH3CN (1b); CN− (1c); N3− (1d) and SCN− (1e)] and it’s reaction with N,N-donor chelating ligands dimethylglyoxime (H2dmg) and 1,2-phenylenediamine (pda) gave cationic complexes [(η5-C5H5)Ru(κ1-P-PPh2Py)(κ2-N-N)]PF6 [κ2-N-N=dmg (1f) and pda (1g)]. The complexes 1–1g have been characterized by physicochemical techniques and crystal structures of 1, 1a, 1c, 1e and 1f have been determined by single crystal X-ray analyses. Catalytic potential of the complex 1 has been evaluated in water under aerobic conditions. It was observed that the complex 1 selectively catalyzes reduction of aldehyde into alcohol.
Item Type: | Article |
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Source: | Copyright of this article belongs to Elsevier Science. |
Keywords: | Ruthenium Complexes; Cyclopentadienyl; Diphenyl-2-Pyridylphosphine (PPh2Py); Dimethylglyoxime; 1,2-Phenylenediamine |
ID Code: | 105460 |
Deposited On: | 20 Apr 2017 11:01 |
Last Modified: | 20 Apr 2017 11:01 |
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