Order of basicity and lipophilicity in organic compounds

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Discussion Overview

The discussion revolves around ranking the basicity and lipophilicity of various organic compounds. Participants explore the order of basicity for compounds such as trimethylamine, tetramethylammonium chloride, 4-nitroaniline, aniline, acetanilide, and 4-methylaniline, as well as the lipophilicity of n-butanol, 2-butanol, butyl chloride, n-butyl acetate, and butyl hydrogen sulfate. The impact of pH on ionization and lipophilicity is also questioned.

Discussion Character

  • Homework-related
  • Exploratory

Main Points Raised

  • One participant proposes a ranking of basicity as trimethylamine > 4-methylamine > aniline > 4-nitroaniline > tetramethylammonium chloride > acetanilide, but expresses uncertainty about the last few compounds.
  • The same participant inquires about the ionization and lipophilicity of these compounds at pH=2 and pH=10.
  • Another participant asks for clarification on whether the inquiry is for schoolwork.
  • A later reply indicates that the question should be posted in the Homework Help section and suggests using the Homework Help Template.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the rankings or the effects of pH, as the discussion is primarily focused on seeking assistance rather than establishing definitive answers.

Contextual Notes

The discussion lacks detailed context on the definitions of basicity and lipophilicity, as well as the specific assumptions underlying the proposed rankings. There are also no resolved mathematical or conceptual steps provided.

MrJason123
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Hello,

I want to rank the following compounds in order of basicity:
trimethylamine, tetramethylammonium chloride, 4-nitroaniline, aniline, acetanilide, 4-methylaniline.
I think this is the order, but I'm not sure for the last ones.
trimethylamine > 4-methylamine > aniline > 4-nitroaniline > tetramethylammonium chloride > acetanilide
Also what happens to their ionization and lipophilicity in pH=2 and pH=10?

And I want to rank these compounds in order of lipophilicity:
n-butanol, 2-butanol, butyl chloride, n-butyl acetate, butyl hydrogen sulphate

Can someone help me?
 
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MrJason123 said:
Hello,

I want to rank the following compounds in order of basicity:
trimethylamine, tetramethylammonium chloride, 4-nitroaniline, aniline, acetanilide, 4-methylaniline.
I think this is the order, but I'm not sure for the last ones.
trimethylamine > 4-methylamine > aniline > 4-nitroaniline > tetramethylammonium chloride > acetanilide
Also what happens to their ionization and lipophilicity in pH=2 and pH=10?

And I want to rank these compounds in order of lipophilicity:
n-butanol, 2-butanol, butyl chloride, n-butyl acetate, butyl hydrogen sulphate

Can someone help me?
Welcome to the PF.

Is this for schoolwork?
 
No. I'm a student in University and I want to be sure about the answers in theses questions.
 
Since it is for schoolwork, it needs to be posted in the Homework Help section of the PF, and you need to fill out the Homework Help Template that you are provided there. That includes the sections on the Relevant Equations/Concepts, and your Attempt at the Solution.

Please re-post in the Homework Help, Chemistry forum. Thank you.
 

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