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. 2019 May 23;63(6):e00004-19. doi: 10.1128/AAC.00004-19

FIG 1.

FIG 1

The FTIR and MALDI-TOF/TOF spectra of ZnLla. (A) FTIR of ZnCl2, Lla, and ZnLla. The unsaturated C-H vibration peak of double bond and the characteristic vibration peak of carboxyl group of Lla are 2,927.8 and 1,712.7, respectively. A new absorption band at 3,444.7 cm−1 was shown for ZnLla. (B) MALDI-TOF/TOF of ZnLla, m/z 637.511 corresponds to the chemical formula, Zn(Lla)2(H2O) ([M+H]+), a hydrated compound with a water molecule (MS: analysis calculated for C36H61O5Zn, m/z 637.381 [M+H]+). Intens., intensity; a.u., arbitrary units.