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Topic: Hybridisation, VSEPR  (Read 6664 times)

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Offline Gameofketones

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Hybridisation, VSEPR
« on: July 23, 2019, 08:51:28 AM »
What is the hybridisation of dithionate ion S2O4 2- ?

My attempt: since there are two sulphur atoms, total no. Of valence electrons is 12+2=14. Oxygen is multiply bonded so there are 4 bond pairs and 14-8=6 hence 3 lone pairs. l.p+b.p=7 therefore hybridisation is sp3d3?
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Offline mjc123

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Re: Hybridisation, VSEPR
« Reply #1 on: July 23, 2019, 10:50:25 AM »
Do you mean dithionite? Dithionate is S2O62-.

2 lone pairs; I think you have forgotten the S-S bond. LP + BP = 4 on each S. Not 7 on one atom!
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Offline Gameofketones

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Re: Hybridisation, VSEPR
« Reply #2 on: July 23, 2019, 11:49:52 AM »
Sorry I meant dithionite ion.

Is this correct?
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Offline AWK

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Re: Hybridisation, VSEPR
« Reply #3 on: July 23, 2019, 03:16:31 PM »
Oxygen atoms also bear nonbonding electron pairs
« Last Edit: July 23, 2019, 03:27:36 PM by AWK »
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Offline Gameofketones

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Re: Hybridisation, VSEPR
« Reply #4 on: July 24, 2019, 08:24:21 AM »
Is the hybridisation of sulphur correct?  sp3?
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Offline AWK

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Re: Hybridisation, VSEPR
« Reply #5 on: July 24, 2019, 11:00:16 AM »
This stupid program does not draw the nonbonding electron pairs on sulfur atoms.

Should be 4 bonds and 1 electron pair
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