(Polar molecules, Non-polar molecules, etc.)

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Postby 304922790 » Sun Nov 12, 2017 9:16 pm

Why is the shape of ClO2+ angular? Does it have to do with polarity/ dipole moments?

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Re: 4.5

Postby Christietan3F » Sun Nov 12, 2017 9:29 pm

It has more to do with electron repulsion. The extra lone pair repels the oxygens, but the oxygens also want to maintain a good distance between themselves, and so the molecular shape becomes bent.

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Re: 4.5

Postby CameronJohari1J » Sun Nov 12, 2017 10:54 pm

The shape of a molecule is independent of the dipole moments and based off the numbers of bonded atoms and lone pairs of electrons. ClO2+ has one central atom, two bonded pairs, and one lone pair of electrons (AX2E1). The lone pair-bonding pair has greater repulsion than the bonding pair-bonding pair repulsion, so instead being trigonal planar, the shape is bent. The bond angle between the bonding pairs should be slightly less than 120 degrees.

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