All Questions
Tagged with periodic-trends organic-chemistry
8
questions
4
votes
1
answer
226
views
Do organopolonium compounds exist?
Analogues of alcohols exist for all the heavier Group 16 elements, namely sulfur, selenium, and tellurium. Would polonium also be able to form a "polonol" like $\ce{CH3PoH}$?
- 921
0
votes
0
answers
70
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S(p)-C(p) vs. O(p)-C(p) overlap
In Grossman, The Art of Writing Reasonable Organic Reaction Mechanisms, he provides the following explanation. The question asks to explain why the difference in pKa values between PhSH and EtSH is ...
- 49
4
votes
0
answers
53
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Is there an enolate equivalent for enamines?
I'm learning that enolates are stronger than enamines are stronger than enols in terms of general nucleophilicity. Makes sense. But what I can't find any explanation for online is why the trend ...
- 49
0
votes
1
answer
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Why is boiling point of Ammonia greater than Arsine?
I have previously read that the boiling point of Stibane(SbH3) is greater than Ammonia(NH3) as ammonia is gas at room temperature and no hydrogen bonding exists in the gaseous form of NH3.
Hence, as ...
3
votes
1
answer
2k
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Is using melting/boiling point good to measure volatility?
I wanted to figure out a way to compare volatility in organic compounds, so I read on many forums on the differing ways to measure volatility, which included enthalpy of vaporization and melting/...
- 331
4
votes
1
answer
701
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Reason for decreased boiling point of hexafluoroisoproponal?
Ethanol and isopropyl alcohol have boiling points 78.37 °C and 82.6 °C respectively. The increase in the boiling point is obvious due to increase in carbon chain length which resulted in increase in ...
- 1,246
8
votes
3
answers
7k
views
Order of positive mesomeric effect of halides
I learned that the order of $+M$ effect (mesomeric effect) for halogens is as follows: $\ce{F} > \ce{Cl} > \ce{Br} > \ce I$.
I wonder why this is so?
- 988
12
votes
2
answers
10k
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Why do alkyl bromides and iodides develop colour when exposed to light?
My book says
Alkyl halides are colourless when pure. However, bromides and iodides develop colour when exposed to light.
Why do they develop colour when exposed to light? It is important to note ...
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