Determining Steric/Torsional Interactions

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504656498
Posts: 11
Joined: Sat Sep 26, 2015 3:00 am

Determining Steric/Torsional Interactions

Postby 504656498 » Tue Mar 08, 2016 7:27 pm

How do I determine steric/torsional interactions in a non-Newman projection?

Kajal Patel 3J
Posts: 20
Joined: Fri Sep 25, 2015 3:00 am

Re: Determining Steric/Torsional Interactions

Postby Kajal Patel 3J » Tue Mar 08, 2016 8:16 pm

If you're not given the Newman projections but you have the formula of the molecule it is helpful to draw it out and see where the atoms would be positioned in order to determine the type of interactions it would have.

danielashirazi_1L
Posts: 11
Joined: Fri Sep 25, 2015 3:00 am

Re: Determining Steric/Torsional Interactions

Postby danielashirazi_1L » Tue Mar 08, 2016 8:44 pm

What exactly is torsional strain?

Crystal Eshraghi 2L
Posts: 24
Joined: Fri Sep 25, 2015 3:00 am

Re: Determining Steric/Torsional Interactions

Postby Crystal Eshraghi 2L » Fri Mar 11, 2016 12:01 am

Torsional strain is the strain that exists when atoms are eclipsed with respect to each other. Steric strain, on the other hand, exists when atoms are physically in contact with one another (e.g. flagpole interaction in the boat conformation).


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