distinguishing dipole moments

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CaminaB_1D
Posts: 63
Joined: Fri Sep 28, 2018 12:16 am

distinguishing dipole moments

Postby CaminaB_1D » Sun Nov 25, 2018 3:42 pm

Can someone explain to me how we know there is a dipole moment in terms of bond vectors? perhaps an example as well?

cara_cavarretta_3F
Posts: 32
Joined: Fri Sep 28, 2018 12:23 am

Re: distinguishing dipole moments

Postby cara_cavarretta_3F » Sun Nov 25, 2018 3:46 pm

Vectors having to do with dipoles denote the direction of charge going from positive to negative or negative to positive. In the molecule H20, attached is a picture of the vector of the bent molecule in which the vector goes from the positive upward bent hydrogen atoms down to the downward negative oxygen atom, making this a dipole. In the case of CO2 however, the vectors both go out toward the linearly bonded oxygen atoms, and the vectors cancel each other out so there is no dipole moment. https://chem.libretexts.org/@api/deki/f ... revision=1


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