2018
Aug
7
awarded  Popular Question
2017
Mar
10
awarded  Taxonomist
2016
Oct
4
awarded  Caucus
Sep
1
comment Stability of unsaturated syn/anti 3-ladderane
I found a paper, that investigates this very question: 10.1002/cber.19731060105
Aug
29
awarded  Commentator
Aug
28
comment Stability of unsaturated syn/anti 3-ladderane
I copied it from an exam protocol. It might very well be that the examinee mixed it up. Do I follow you correctly? You are saying, that the splitting in the syn-config should be larger because of the antisymmetric through-space overlap (through bond being equal). Consequently, the HOMO of the syn would lie higher, i.e. less stabilized, i.e. smaller IP (which would be less negative according to Koopman). This would indeed be indicative of mixing the two IPs.
Aug
28
asked Stability of unsaturated syn/anti 3-ladderane
Jul
26
asked Cheletropic carbene addition to ethene under Woodward-Hoffmann rules
Apr
15
awarded  Yearling
Apr
10
revised Negative hyperconjugation stabilizes tricyclopentane derivate
It's not a tetrahedrane, but a tricyclopentane (I was mistaken in the naming). Question remains the same.
Apr
7
asked Negative hyperconjugation stabilizes tricyclopentane derivate
2015
Oct
20
comment How to connect proteins via disulfide bonds computationally?
I don't think it looks like spam. Actually, it's rather interesting. But so far it seems that I can only calculate energy minima of residues that are in the same protein, not in multiple ones ...?
Oct
20
revised How to connect proteins via disulfide bonds computationally?
deleted 17 characters in body
Oct
11
accepted Calculate concentration gradients in FPLC
Oct
8
accepted What is the explanation for this stereochemical product?
Oct
8
comment What is the explanation for this stereochemical product?
You said, the iodine comes from the less sterically hindered side, i.e. from behind the monitor. But why would this side be sterically favoured? The two carbons of the double bond are both sp2, they form a plane, so no side is inherently more sterically hindered (and the hydroxy group can be turned away). Am I missing something?
Oct
7
asked What is the explanation for this stereochemical product?
Sep
28
awarded  Curious
Sep
28
answered Calculate concentration gradients in FPLC
Sep
28
comment Calculate concentration gradients in FPLC
Yes, that's it, the result of 1.24826 seems right. If you edit it in your post, I'll accept it for closure.