Why does NH3 form hydrogen bond but PH3 does not?

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asked Dec 22, 2017 in Chemistry by sforrest072 (157,439 points) 61 410 941

Why does NH3 form hydrogen bond but PH3 does not?

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answered Dec 22, 2017 by mdsamim (213,225 points) 5 10 15
selected Dec 22, 2017 by sforrest072
 
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Nitrogen is highly electronegative as compared to phosphorus. This causes a greater attraction of electrons towards nitrogen in NH3 than towards phosphorus in PH3. Hence, the extent of hydrogen bonding in PH3 is very less as compared to NH3.

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