Table 2.

¹H and ¹⁵N chemical shifts and assignments of the Pt-NH₃ peaks produced after 2 h of irradiation (λ_max = 365 nm, P = 6.4 mW cm⁻², dose = 46.1 J cm⁻², 310 K) of complex ¹⁵N₂-1 (8.6 mm) in presence of 1-methylimidazole (molar ratio 1:1.02) in 90% PBS/10% D₂O (Ar-saturated, pH 8.7 (initial)/10.2 (final; re-adjusted to 2.6)). Data obtained from a 2D [¹H,¹⁵N] HSQC NMR experiment.

Chemical shifts [ppm]		Assignment
δ(1H)	δ(15N)
4.23	−67.00	t-{N-PtII-15NH3}
4.05	−65.05	t-{N-PtII-15NH3}
4.04	−65.12	t-{N-PtII-15NH3}
4.25	−63.45	t-{N-PtII-15NH3}
4.04	−61.46	t-{N-PtII-15NH3}
7.12	−1.90	15NH4+