Vibrational Spectra and Normal Coordinate Analysis for (S-Glutathionato) (2,2':6',2′-Terpyridine) Platinum(Ii) Chloride, [Pt(Trpy)Gs]Cl

Platinum complexes of terpyridine: Interaction and reactivity with biomolecules

“…First reported by Kostić and co-workers, the reaction of [Pt(terpy)Cl] + with glutathione (GSH) at pH 7 yields [Pt(terpy)GS] [72,78,81]. The product has been described as having a neutral [78], +1 [72,[82][83][84], or +2 [81,85] charge in various reports, presumably reflecting the degree of ionization of the two carboxylate groups of the glutathione ligand for particular solution pH. Under conditions of excess glutathione, the chloride substitution reaction follows first order kinetics [72], and a Job's plot indicates a 1:1 binding of platinum and the tripeptide [78,85].…”

“…This hydrophobic interaction compresses the glutathione structure from that observed for the free tripeptide. Further characterization of [Pt(terpy)GS] + came from a study comparing the infrared and Raman spectra of the complex with calculated normal modes from an optimized structure [83].…”

Nitrogen-functionalised carbon nanotubes as a novel adsorbent for the removal of Cu(ii) from aqueous solution

“…4c), peaks at 3050 cm À1 (aromatic C-H str), 1475-1585 cm À1 (aromatic C]C str), 1634 cm À1 (C]N str), 2890-2970 cm À1 (CH 2 and CH groups), 3500 cm À1 (O-H str), 1250-1335 cm À1 (C-N str), 712 cm À1 and 634 cm À1 (indicating g and d Py-ring in-plane and out-of-plane deformation vibrations respectively) were obtained. [48][49][50] Of importance to note is that MWCNT-ttpy (Fig. 4d) showed a similar prole to that of the ligand (Fig.…”

Photoinduced Jahn–Teller switch in Mn(iii) terpyridine complexes

“…This mode has previously been observed in [Co(terpy) 2 ] 2+ in an ultrafast X-ray scattering experiment with a frequency of 150 cm −1 , 25 and in the ground state of [Pt(terpy)(S-glutathionato)] 2+ (ref. 26) and [Ru(terpy) 2 ] 2+ (ref. 27) with frequencies of 111 cm −1 and 80 cm −1 , respectively.…”