Can chlorine form hydrogen bonds? [duplicate]








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Closed 6 years ago.



My question is simple, If chlorine ($\ce{\_17Cl^35^.^5}$) and nitrogen ($\ce{\_7N^14}$) have similar values of electronegativity, and chlorine has way more lone pairs than nitrogen, what prevents it from forming hydrogen bonds ? 


(other than in chloral dihydrate $\ce{CCl3CH(OH)2)}$




Nitrogen is equally electronegative as chlorine but also more **compact**. Whether you consider hydrogen bonding as purely electrostatic or having a covalent character (*The lone pair on atom X overlaps the molecular orbital in the H-Y bond of an adjacent molecule, thus partially delocalizing the bond*), the more compact structure of nitrogen offers an advantage.


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