The enter obactin and macro cyclic lig has an extraordinarily high affinity for Fe3+ with a stability constant of 10^52.
1. Propose a structure for the Fe (III)-enter obactin the complex that explains its high stability.
2. Determine the numbers of liters of bacteria would have to be searched to find a single Fe3+ ion if the concentration of the Fe(III) enter obactin complex within the microorganism is 10^-7 mol/L.