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The initial reaction for 1 d at 20 °C and pH 6 yielded a mixture of two Re(CO)3(l-ASMA) isomers, 2A (exo) and 2B (endo). The product ratio of the crude reaction mixture was studied by monitoring the % area from the HPLC trace for up to 7 d at 20 °C (a) and 70 °C (b) for pH 4, 7 and 9.
