Maximum number of hydrogen bonds

In summary, the maximum number of hydrogen bonds that can be formed between two molecules is three, and this is affected by factors such as size, shape, electronegativity, and polarity. Hydrogen bonds are weaker than covalent bonds and contribute to the structure of biological molecules. While the maximum number of hydrogen bonds can sometimes be exceeded, it is generally a limit to the number that can be formed.
  • #1
ELiT.Maxwell
8
0
like in NH3, maximum number of Hydrogen bonds is 4 and general is 2 ... is it that in any molecule, max number of hydrogen bonds=Hydrogens with +∂ change + lone pairs with -∂ charge (enough polarization by F or O or N and chelated with Cl)

now, if that was correct, hydrazine nh2-nh2 forms 6 (hypothetical)?
 
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  • #2
Yes, that is correct. Hydrazine (NH2-NH2) can form up to 6 hydrogen bonds, depending on the environment.
 

What is the maximum number of hydrogen bonds that can be formed between two molecules?

The maximum number of hydrogen bonds that can be formed between two molecules is three. This is because each molecule can form one hydrogen bond with another molecule's hydrogen atom and two hydrogen bonds with its oxygen atom.

What factors affect the maximum number of hydrogen bonds that can be formed?

The maximum number of hydrogen bonds that can be formed is affected by the size and shape of the molecules, as well as the electronegativity and polarity of the atoms involved. These factors determine the strength of the hydrogen bonds and how many can be formed.

Can hydrogen bonds be stronger than covalent bonds?

No, hydrogen bonds are weaker than covalent bonds. They are a type of intermolecular force, while covalent bonds are intramolecular bonds that hold atoms together within a molecule.

How do hydrogen bonds contribute to the structure of biological molecules?

Hydrogen bonds play a crucial role in the structure of biological molecules such as DNA and proteins. They help to stabilize the specific shapes and structures of these molecules, allowing them to perform their functions effectively.

Can the maximum number of hydrogen bonds be exceeded?

Yes, in certain cases, the maximum number of hydrogen bonds can be exceeded. This can happen when molecules have multiple functional groups that can form hydrogen bonds, or when there is a strong enough attraction between two molecules to form additional hydrogen bonds. However, this is not common and the maximum number of hydrogen bonds is generally a limit to the number that can be formed.

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