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Topic: HSAB principle related problem  (Read 2417 times)

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Offline Sona

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HSAB principle related problem
« on: May 02, 2017, 03:44:52 AM »
Between AgI2- and AgI3-, AgI2- is more stable. What is the reason?
Can it be explained by HSAB pinciple? Ag+ is weak and so as I2-, so they makes a stable complex, but what about I3- ? Is it softer or hard?
Please help with explanation
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Offline Borek

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Re: HSAB principle related problem
« Reply #1 on: May 02, 2017, 10:15:49 AM »
What are general rules for comparing hardness of acids/bases?
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Offline Sona

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Re: HSAB principle related problem
« Reply #2 on: May 03, 2017, 09:50:42 AM »
For bases: higher electronegativity, smaller size, i.e smaller polarisibility means a hard base and opposite is soft.
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