• Synthesis and structural study of platinum group metal complexes containing pyrimidine bridged pyrazolyl-pyridine ligand and $\eta^5$ and $\eta^6$ - cyclic hydrocarbons

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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 [CpM(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 [CpM(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.

    • Author Affiliations

       

      Thirumala Prasad Kota1 Mohan Rao Kollipara2

      1. Department of Chemistry, MIC College of Technology, Kanchikacherla, Vijayawada 521 180, India
      2. Department of Chemistry, North Eastern Hill University, Shillong 793 022, India
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