A) \[C{{N}^{-}}>C{{H}_{3}}^{-}>N{{O}_{2}}^{-}>B{{r}^{-}}\]
B) \[C{{N}^{-}}>B{{r}^{-}}>N{{O}_{2}}^{-}>C{{H}_{3}}^{-}\]
C) \[B{{r}^{-}}>N{{O}_{2}}^{-}>C{{N}^{-}}>C{{H}_{3}}^{-}\]
D) \[C{{H}_{3}}^{-}>C{{N}^{-}}>N{{O}_{2}}^{-}>B{{r}^{-}}\]
Correct Answer: A
Solution :
[a] The trans-effect may be defined as the labelization of ligands trans- to the other trans-directing ligand. [Note: The order of ligands in the trans- directing series is as follows: \[C{{N}^{-}}\tilde{\ }~CO\tilde{\ }NO\tilde{\ }{{H}^{-}}>C{{H}_{3}}^{-}\tilde{\ }SC{{(N{{H}_{2}})}_{2}}\tilde{\ }\] \[P{{R}_{3}}>S{{O}_{3}}H>N{{O}_{2}}^{-}\tilde{\ }{{I}^{-}}\tilde{\ }SC{{N}^{-}}>B{{r}^{-}}>\] \[C{{l}^{-}}>Py>RN{{H}_{2}}\tilde{\ }N{{H}_{3}}>O{{H}^{-}}>{{H}_{2}}O]\]You need to login to perform this action.
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