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4

The reasoning you utilized for comparing the bond angles of $\ce{NH3}$, $\ce{NF3}$, and $\ce{NCl3}$, while sensible, is simplistic and works best only for a few cases where weighing the factors of steric repulsion against bond pair-bond pair repulsions is feasible. It seems that you have encountered this very problem in the case of comparing the bond angles ...

0

The reasoning provided in the book conforms with the computational data and hence can be presumed correct. As the $\ce{C-X}$ bond lengths of increases, the position of electrons moves away from the $\ce{CO}$ (carbonyl electrons), and hence they are repelled less. Another proven method for the claim can be using the bent's rule provided by Yusuf Hasan. To ...

2

I decided to do some more research for this question as I had faced it before. Turns out the proper name of this ligand is diethylenetriaminepentaacetate ($\ce{DTPA^5-}$). It's an expanded version of EDTA and is primarily used in MRI scanning where it forms complexes with the Gadolinium ion. It forms complexes with a coordination number of six and seven with ...

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