## Questions about paragraph 1D

Consider the following part of a Z-matrix of cyclopropane:

XX 0.00 0.00 0.00 0 0 0
XX 1.00 0.00 0.00 1 0 0
C 0.90 90.00 0.00 2 1 0
C 1.35 A C 3 2 1
C 1.35 B D 3 2 1

### Question 1

The bond length values entered serve as reasonable starting values for
an optimization.
What is the basis for an estimated C-XX distance of 0.90?
Check your answer here.

What would be the value of the bond angles and torsion angles
for the carbons 4 and 5 with the definition path
shown above (4-3-2-1 and 5-3-2-1) ?
A: Bond
angle 4-3-2

B: Bond
angle 5-3-2

C: Torsion
angle 4-3-2-1

D: Torsion
angle 5-3-2-1

Back to
part 1D of the course.