What is the chemical structure of tert-pentyl chloride and how does it affect the reactivity of the molecule?

The chemical structure of tert-pentyl chloride is (CH3)3C-CH2-Cl. The tert-pentyl group (t-butyl group) is bulky and sterically hindered, which makes it less reactive compared to other alkyl halides. This hindrance prevents easy access of nucleophiles to the carbon atom bonded to the chlorine, reducing the reactivity of the molecule in nucleophilic substitution reactions.