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Figure 4
Normalized IR absorption spectra of the Ca3PQQ2 complex in black, the 1:1 Ca–PQQ precipitate in grey and the Eu2PQQ2 complex in blue. Inset: close-up of the PQQ-related IR absorption peaks. |
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Figure 4
Normalized IR absorption spectra of the Ca3PQQ2 complex in black, the 1:1 Ca–PQQ precipitate in grey and the Eu2PQQ2 complex in blue. Inset: close-up of the PQQ-related IR absorption peaks. |