Journal article

Publication year: 2015

Pages: 101900-101909

Journal: RSC Advances

Volume number: 5

Issue number: 123

eISSN: 2046-2069

DOI Link: https://doi.org/10.1039/c5ra16541e

Publisher: Royal Society of Chemistry

Abstract: 
A series of mononuclear trimethylplatinum(IV) complexes of bipyridine ligands, [PtMe3(L-L) I] (L-L = bipy, 4-Mebipy, 4-MeObipy and 4-Me(2)Nbipy) has been synthesized by the reaction of trimethylplatinum(IV) iodide with bipyridine ligands L-L in an equimolar ratio. Also, treatment of mononuclear trimethylplatinum(IV) iodide complexes of pyridine ligands, [PtMe3L2I] (L = py, 4-Mepy, 4-MeOpy and 4-Me(2)Npy) with the corresponding bipyridine ligands leads to the exchange of the pyridines by the bipyridine ligands, thereby resulting in the formation of the more stable chelate bipyridine complexes. The ligand-exchange reactions have been studied by H-1 NMR spectroscopy. The H-1 NMR spectra of a 1:1 mixture of mononuclear pyridine complexes [PtMe3L2I] and corresponding bipyridine ligands L-L reveal the formation of two chelate bipyridine complexes, [PtMe3(L-L) I] and [PtMe3(L-L) L] I, in solution. Speciation of the pyridine and bipyridine complexes in solution was found to be dependent on the substituent as well as on the nature of the solvent. Furthermore, crystal structures of three bipyridine complexes [PtMe3(L-L) I] (L-L = 4-Mebipy, 4-MeObipy and 4-Me(2)Nbipy) have also been investigated here.

Harvard Citation style: Ghosh, B. and Schlecht, S. (2015) Exchange of pyridine and bipyridine ligands in trimethylplatinum(IV) iodide complexes: substituent and solvent effects, RSC Advances, 5(123), pp. 101900-101909. https://doi.org/10.1039/c5ra16541e

APA Citation style: Ghosh, B., & Schlecht, S. (2015). Exchange of pyridine and bipyridine ligands in trimethylplatinum(IV) iodide complexes: substituent and solvent effects. RSC Advances. 5(123), 101900-101909. https://doi.org/10.1039/c5ra16541e