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2D [1H,15N] HMBC NMR spectrum of complex 15N2-1 (8.6 mm) in presence of 1-methylimidazole (molar ratio 1:1.02) in 90% PBS/10% D2O (Ar-saturated, initial pH 8.7) after 2 h of irradiation (λmax = 365 nm, P = 6.4 mW cm−2, dose = 46.1 J cm−2, final pH 10.2) at 310 K. See Table 1 for species assignment.
