𝜂5 and 𝜂6 - cyclic 𝜋-perimeter hydrocarbon platinum group metal complexes of 3-(2-pyridyl)pyrazole derived ligands with a pendant nitrile group: Syntheses, spectral and structural studies

Journal of Chemical Sciences

Peng Wang³  Mohan Rao Kollipara1¹  Gloria Sairem¹  Venkateswara Rao Anna¹  Bbulal Das² 

[1] Department of Chemistry, North Eastern Hill University, Shillong 793 022, India$$;Department of Chemistry, Indian Institute of Technology, Guwahati 781 039, India$$;Department of Chemistry, McMaster University, 1280 Main StreetWest, Hamilton, Ontario L8S 4M1, Canada$$

关键词: Arene;    pentamethylcyclopentadienyl;    ruthenium;    rhodium;    3-(2-pyridyl)pyrazole.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

Reaction of two equivalents 4-{(3-(pyridine-2-yl) 1H-pyrazole-1-yl}methyl benzonitrile (L1) and 3-{(3-(pyridine-2-yl)1H-pyrazole-1-yl}methyl benzonitrile (L2) with one equivalent of [(𝜂6-arene)Ru(𝜇- Cl)Cl]2 and [Cp∗M(𝜇-Cl)Cl]2 in methanol yielded mononuclear complexes of the formulae [(𝜂6-arene)Ru(L1/L2)Cl]BF4{arene =C6H6 (1, 6); C10H14 (2, 7); C6Me6 (3, 8)} and [Cp∗M(L1/L2)Cl]PF6/BF4 {Cp∗= 𝜂5-C5Me5, M=Rh (4, 8); Ir (5, 10)}. These complexes are characterized by IR, 1H NMR and identities of the structure are established by single crystal XRD studies of some of the representative complexes. It is confirmed from the spectral studies that the nitrile group is not taking part in complexation; instead it remains as a free pendant group only.

【 授权许可】

Unknown