The Student Room Group

permanent dipole interactions

how can you tell if the imf's in a covalent compound are permanent dipole dipole with just the simple formula of a compound?
Reply 1
Does the molecule consist of more than one type of atom, in which case there will be dipoles?

Is the molecule symmetrical, in which case the dipoles will cancel out?

Can you work out the shapes of molecules?
Reply 2
Original post by Pigster
Does the molecule consist of more than one type of atom, in which case there will be dipoles?

Is the molecule symmetrical, in which case the dipoles will cancel out?

Can you work out the shapes of molecules?

i can work out the shape of molecules, so if theres more than one type with an asymmetrical structure, then there are permanent dipole dipole interactions?
thanks
Reply 3
That's good enough for A-level.

Which exam board are you taking?
Reply 4
Original post by Pigster
That's good enough for A-level.

Which exam board are you taking?

aqa
Reply 5
Linear, trigonal planar, square planar, tetrahedral, trigonal bipyramidal, octahedral = symmetrical.

Non-linear, pyramidal (all types), T, see-saw = asymmetrical.
Reply 6
Original post by Pigster
Linear, trigonal planar, square planar, tetrahedral, trigonal bipyramidal, octahedral = symmetrical.

Non-linear, pyramidal (all types), T, see-saw = asymmetrical.
thats great thanks

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