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All results from a given calculation for C4H5N ((Z)-2-Butenenitrile)

using model chemistry: HF/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-34.412150
Energy at 298.15K-34.416942
Nuclear repulsion energy73.369243
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/CEP-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3422 3085 19.25      
2 A 3370 3038 26.31      
3 A 3332 3003 16.11      
4 A 3217 2900 35.41      
5 A 2492 2246 53.40      
6 A 1839 1658 16.41      
7 A 1624 1464 19.97      
8 A 1576 1421 4.14      
9 A 1529 1378 2.16      
10 A 1372 1237 1.70      
11 A 1232 1111 0.73      
12 A 1042 939 16.81      
13 A 953 859 1.25      
14 A 715 644 0.27      
15 A 430 388 0.11      
16 A 179 162 4.35      
17 A 3284 2960 47.93      
18 A 1624 1464 15.90      
19 A 1201 1083 0.47      
20 A 1106 997 4.08      
21 A 855 771 63.76      
22 A 576 519 3.96      
23 A 313 282 1.56      
24 A 142 128 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 18712.1 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 16867.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HF/CEP-31G
ABC
0.39351 0.11249 0.08892

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.285 0.336 0.000
N2 -2.317 -0.201 0.000
C3 0.000 1.028 0.000
H4 -0.049 2.103 0.000
C5 1.187 0.375 0.000
H6 2.080 0.983 0.000
C7 1.391 -1.128 0.000
H8 0.451 -1.671 0.000
H9 1.965 -1.426 0.879
H10 1.965 -1.426 -0.879

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.16361.45932.15612.47173.42603.05002.65303.79903.7990
N21.16362.62293.23283.55084.55343.82223.13404.53914.5391
C31.45932.62291.07551.35482.08022.56622.73643.26423.2642
H42.15613.23281.07552.12422.40483.53723.80634.15654.1565
C52.47173.55081.35482.12421.08061.51682.17382.14942.1494
H63.42604.55342.08022.40481.08062.22113.11412.56732.5673
C73.05003.82222.56623.53721.51682.22111.08541.09071.0907
H82.65303.13402.73643.80632.17383.11411.08541.76711.7671
H93.79904.53913.26424.15652.14942.56731.09071.76711.7574
H103.79904.53913.26424.15652.14942.56731.09071.76711.7574

picture of (Z)-2-Butenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.726 C1 C3 C5 122.834
N2 C1 C3 179.146 C3 C5 H6 116.879
C3 C5 C7 126.579 H4 C3 C5 121.440
C5 C7 H8 112.250 C5 C7 H9 109.959
C5 C7 H10 109.959 H6 C5 C7 116.541
H8 C7 H9 108.594 H8 C7 H10 108.594
H9 C7 H10 107.346
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.637      
2 N 0.347      
3 C -0.119      
4 H 0.270      
5 C -0.202      
6 H 0.207      
7 C -0.272      
8 H 0.160      
9 H 0.123      
10 H 0.123      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.687 1.047 0.000 4.803
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.671 -2.384 0.000
y -2.384 -27.579 0.000
z 0.000 0.000 -31.628
Traceless
 xyz
x -8.067 -2.384 0.000
y -2.384 7.070 0.000
z 0.000 0.000 0.997
Polar
3z2-r21.993
x2-y2-10.091
xy-2.384
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.965 -0.441 0.000
y -0.441 5.968 0.000
z 0.000 0.000 3.679


<r2> (average value of r2) Å2
<r2> 103.562
(<r2>)1/2 10.177