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. Author manuscript; available in PMC: 2013 Jan 2.
Published in final edited form as: Inorg Chem. 2011 Dec 7;51(1):647–660. doi: 10.1021/ic202094p

Table 2.

Species Observed in the ES–MS Spectra of Solutions ([L]t = 2 × 10−3 M in Anhydrous MeCN, L = (R,R)−1) with Ratios R = [Eu]t/[L]t = 0–4 at 298 K.

Species m/za Species m/za
[(L) + H]+ 374.2 [Eu(L)(NO3)2]+ 650.1
[(L) + Na]+ 396.2 [Eu(L)3(NO3)]2+ 667.2
[Eu(L)3]3+ 424.2 [2(L) + Na]+ 769.3
[Eu(L)2(NO3)]2+ 480.6 [Eu(L)2(NO3)2]+ 1023.2
[Eu(L)4]3+ 548.5 [Eu(L)3(NO3)2]+ 1396.4
a

m/z values given for the maximum of the peak at unit mass resolution.