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Synthesis and structural study of platinum group metal complexes containing pyrimidine bridged pyrazolyl-pyridine ligand and $\eta^5$ and $\eta^6$ - cyclic hydrocarbons
Thirumala Prasad Kota Mohan Rao Kollipara
Volume 126 Issue 4 July 2014 pp 1143-1151
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https://www.ias.ac.in/article/fulltext/jcsc/126/04/1143-1151 -
Keywords
Arene-ligands ;4,6-bis{3-(2-pyridyl)-1H-pyrazol-1-yl}pyrimidine ;Ruthenium ;Rhodium ;Iridium. -
Abstract
The mononuclear compounds [($\eta^6$-arene)Ru(bppm)Cl]PF6{bppm = 4,6-bis3-(2-pyridyl)-1Hpyrazol-1-yl}pyrimidine; arene = C6H6, [1]; 𝑝-$^i$PrC6H4Me, [2]; C6Me6, [3]}, [CpRu(bppm)(PPh3)]PF6{Cp = $\eta^5$-C5H5, [4]; $\eta^5$-C5Me5, [5]; $\eta^5$-C9H7, [6]} and [Cp∗M(bppm)Cl]PF6 {M = Rh [7]; Ir [8]} have been synthesized from the reaction of 4,6-bis{3-(2-pyridyl)-1H-pyrazol-1-yl}pyrimidine (bppm) and the corresponding precursor metal complexes [($\eta^6$-arene)Ru(𝜇-Cl)Cl]2, [CpRu(PPh3)2Cl] and [Cp∗M(𝜇-Cl)Cl]2, respectively, in the presence of NH4PF6. They were characterized by the following techniques viz. IR, NMR, mass spectrometry and UV-visible spectroscopy. The molecular structures of [2] and [7] have been established by single crystal X-ray structure analyses.
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Author Affiliations
Thirumala Prasad Kota1 Mohan Rao Kollipara2
- Department of Chemistry, MIC College of Technology, Kanchikacherla, Vijayawada 521 180, India
- Department of Chemistry, North Eastern Hill University, Shillong 793 022, India
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Dates
- Published
- July 2014
- Manuscript received
- 22 October 2013
- Manuscript revised
- 28 May 2014
- Accepted
- 6 April 2014
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Supplementary Material
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