- D A Zn Complex With The Formula Znl H O 2 L Ligand Catalyses The Cleavage Of The Rna Dinucleotide Apa Shown 1 (48.12 KiB) Viewed 45 times
(d) A Zn²+ complex with the formula [ZnL(H₂O)2]²+ (L = ligand) catalyses the cleavage of the RNA dinucleotide ApA (shown
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(d) A Zn²+ complex with the formula [ZnL(H₂O)2]²+ (L = ligand) catalyses the cleavage of the RNA dinucleotide ApA (shown
(d) A Zn²+ complex with the formula [ZnL(H₂O)2]²+ (L = ligand) catalyses the cleavage of the RNA dinucleotide ApA (shown below). The pK, values of the water ligands in the Zn²+ complex are 7.5 and 9.2. (i) Plot the rate-pH profile of the catalysed reaction. Explain your workings. [20 marks] (ii) How does the rate-pH profile differ, when the catalyst is the analogous Cu²+ complex [CuL(H₂O)2]²+? [10 marks] (iii) What differences are observed between the rate-profiles of the [ZnL(H₂O)2]²+- catalysed reaction in H2O and in D2O? Justify your answer. [10 marks] HUN ApA
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