Organic

[iphone2020]

Hello SDN ,

I was asking DR Romano about this question and I still got it wrong ! In my thinking process I though that E or Z the E will be non polar so it would be less thermodynamically favored! Am I confusing subject with CIS or Trans! I would love to get feedback from Dr, Romano on this!

Thanks!


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[DAT Destroyer]

Hello SDN ,
View attachment 209797

I was asking DR Romano about this question and I still got it wrong ! In my thinking process I though that E or Z the E will be non polar so it would be less thermodynamically favored! Am I confusing subject with CIS or Trans! I would love to get feedback from Dr, Romano on this!

Thanks!


Sent from my iPhone using SDN mobile

 

[DAT Destroyer]

Hello SDN ,
View attachment 209797

I was asking DR Romano about this question and I still got it wrong ! In my thinking process I though that E or Z the E will be non polar so it would be less thermodynamically favored! Am I confusing subject with CIS or Trans! I would love to get feedback from Dr, Romano on this!

Thanks!


Sent from my iPhone using SDN mobile

If have an alkene with 2 different groups you do not use E/Z nomenclature, but you use Cis/Trans nomenclature.This is a mistake often made by many students. When dealing with alkenes the Trans isomer is normally the more stable because the groups are further apart and do not sterically clash.

I suggest you use a book written by a PhD Chemist, I suggest the David Klein text.

Hope this helps

Dr. Romano

 

[Mason91]

Hello SDN ,
View attachment 209797

I was asking DR Romano about this question and I still got it wrong ! In my thinking process I though that E or Z the E will be non polar so it would be less thermodynamically favored! Am I confusing subject with CIS or Trans! I would love to get feedback from Dr, Romano on this!

Thanks!


Sent from my iPhone using SDN mobile

E-Z configuration describes absolute stereochemistry of double bonds whereas cis-trans notation only describes relative stereochemistry that can be used to describe double bonds having two or more substituents. The E being more stable is due to less steric hindrance.. I think..

 

[Mason91]

If have an alkene with 2 different groups you do not use E/Z nomenclature, but you use Cis/Trans nomenclature.This is a mistake often made by many students. When dealing with alkenes the Trans isomer is normally the more stable because the groups are further apart and do not sterically clash.

I suggest you use a book written by a PhD Chemist, I suggest the David Klein text.

Hope this helps

Dr. Romano

Oops, he already answered.

 

[iphone2020]

Ok got it!!!! thank you Dr Romano


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[DAT Destroyer]

Ok got it!!!! thank you Dr Romano


Sent from my iPhone using SDN mobile