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The table below shows rate constants of ligand substitution reactions with various entering ligands for [Cr(NH3)5(HO)]+ and [Cr(HO)]+. Rate Constants for Anation Entering Ligand
The table below shows rate constants of ligand substitution reactions with various entering ligands for [Cr(NH3)5(HO)]+ and [Cr(HO)]+. Rate Constants for Anation Entering Ligand NCS NO3 CIT Br I [Cr(NH3)5(HO)]+ k(10-4 M- S-) 4.2 - 0.7 3.7 [Cr(HO)]+ k(10-8 M- S-) 180 73 2.9 0.9 0.08 CF3COO 1.4 Data from D. Thusius, Inorg. Chem., 1971, 10, 1106; T. Ramasami, A. G. Sykes, Chem. Commun., 1978, 378. a. Describe trends of rate constants for [Cr(NH3)5(HO)]+ and [Cr(HO)6]+. b. Propose substitution mechanisms for [Cr(NH3)5(HO)]+ and [Cr(HO)]+. c. Try to rationalize why two complexes undergo ligand substitution reactions via different mechanisms.
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Chemistry The Central Science
Authors: Theodore Brown, Eugene LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward
12th edition
321696727, 978-0132175081, 978-0321696724
