Formation of Heterometallic Compounds in Mixed Solutions
of Nickel(II)Schiff Base Complexes and Lanthanide Nitrates:
Electrospray Ionization Mass Spectrometry Data

A. M. Makarevich^a, S. V. Kardashev^b, A. N. Grigor’ev^b, and N. P. Kuz’mina^b

^a Faculty of Materials Science, Moscow State University, Leninskie gory, Moscow, 119991 Russia

^b Faculty of Chemistry, Moscow State University, Leninskie gory, Moscow, 119991 Russia

Received June 20, 2007

Abstract—Atmospheric-pressure electrospray ionization mass spectrometric data are reported for methanolic
Ni(SB) + Ln(NO₃)₃ · nH₂O solutions (H₂SB = N,N'-ethylene-bis(salicylaldiimine), N,N'-ethylene-bis(3-methox-
ysalicylaldiimine), N,N'-ethylene-bis(acetylacetonediimine); Ln = La, Eu, Lu). Dinuclear and trinuclear heter-
ometallic complexes of composition [(Ni(SB))_xLn(NO₃)₃] (x = 1, 2) form in these solutions. The dinuclear-to-
trinuclear ion intensity ratio depends on the natures of the lanthanide and the Schiff base.

DOI: 10.1134/S0036023608090210

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