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Figure 1
The ESI mass spectra (aceto­nitrile, positive mode, 10−6 M) of (a) Zn2Br3(tpena) and (b) Cu2Br3(tpena). The ion at m/z 317.080 in part (b) is due to the loss of a CH2Py arm and CO2 from [Cu(tpena–CO2–CH2Py)]+ (see Fig. 2[link] for proposed structure).

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
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