It's a modified form of [10] annulene (https://en.wikipedia.org/wiki/Cyclodecapentaene) where internal bridges are used to hold the outer, conjugated ring in a planar geometry and thus with the $4n+2$ rule that outer ring is aromatic.
You may be more familiar with the methylene bridged version o...
using Hückel's rules where they are clearly wrong :'(
@orthocresol can you write an answer, you seem to have access to the paper, and I don't D:
i have a closed container with equal amounts of solution a,b. 'a' is more volatile. so if i have a and b in same quantities in same closed container in some solution, partial pressure due to a must be more than that due to b. hence mole fraction of a dissolved in solution should be less
now aren't they inversely proportional rather than directly proportional
As the question says, I'm having trouble understanding where does magnetic inequivalence in $\ce{^1H}$ NMR come from. All the sources I've found say that two protons are magnetically equivalent if all $J$ values to all other spins in the molecule are identical. So for example, in 1,2-dibromobenze...
@mhchem You could get from tag wiki edits but there's no mathjax :( Also 1k from suggested edits is max; you can loose a bit of rep. if any post with your suggested edit is deleted.
Acetic acid effects protonolysis of the borane:
If AcOD is used then RD (instead of RH) is formed.
The Periodic Table
The Periodic Table