CEEPC/IPM/CMSC - Abstrakt prezentace

(1. konference České společnosti pro hmotnostní spektrometrii - ThP-008)
ESI-MS investigation of the complexation behavior of macrocyclic thiacrown ethers and bivalent transition metals

Alexandra Tsybizova 1 *, Detlef Schröder 1

  1. Institute of Organic Chemistry and Biochemistry


Electrospray ionization mass spectrometry (ESI-MS) was used to study the complexation behavior of three newly synthetized1 thia-macrocycles (1-3) with different 3d metal chlorides (i.e. CuCl2, CoCl2, NiCl2, and ZnCl2). The study demonstrates that the thiacrown ethers preferentially bind traces of copper even in the excess of other metal ions. The binding process is accompanied by the reduction from CuII to CuI and the formation of [(thiacrown)Cu]+ species. By use of 18-crown-6 as a reference the absolute association constants are evaluated.

* Korespondující autor: tsybizova@uochb.cas.cz


  1. Holý P. et al.: Synthesis 24, 4169-4176 (2010).

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