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

using model chemistry: B3LYP/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 B3LYP/CEP-31G
 hartrees
Energy at 0K-35.406816
Energy at 298.15K-35.411299
Nuclear repulsion energy72.597906
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 B3LYP/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 3207 3106 16.78      
2 A 3165 3065 26.41      
3 A 3145 3046 3.54      
4 A 3033 2938 20.89      
5 A 2230 2159 23.91      
6 A 1682 1629 12.02      
7 A 1496 1448 23.06      
8 A 1438 1393 11.47      
9 A 1400 1356 1.20      
10 A 1261 1221 1.24      
11 A 1130 1094 0.76      
12 A 972 942 18.73      
13 A 898 869 1.52      
14 A 657 636 0.87      
15 A 385 373 0.40      
16 A 159 154 3.35      
17 A 3097 2999 35.39      
18 A 1496 1449 17.58      
19 A 1078 1044 0.13      
20 A 1005 973 1.93      
21 A 775 751 63.58      
22 A 520 503 7.15      
23 A 280 271 1.44      
24 A 136 131 0.25      

Unscaled Zero Point Vibrational Energy (zpe) 17321.7 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 16774.3 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 B3LYP/CEP-31G
ABC
0.38534 0.11088 0.08752

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.283 0.345 0.000
N2 -2.341 -0.208 0.000
C3 0.000 1.038 0.000
H4 -0.043 2.130 0.000
C5 1.204 0.374 0.000
H6 2.112 0.989 0.000
C7 1.393 -1.135 0.000
H8 0.432 -1.672 0.000
H9 1.973 -1.449 0.888
H10 1.973 -1.449 -0.888

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.19401.45792.17262.48693.45553.05772.64783.82163.8216
N21.19402.65183.27773.59234.61113.84673.13574.57524.5752
C31.45792.65181.09211.37522.11302.58172.74483.29653.2965
H42.17263.27771.09212.15352.43883.56693.83144.20224.2022
C52.48693.59231.37522.15351.09681.52142.18712.16872.1687
H63.45554.61112.11302.43881.09682.24313.14712.59852.5985
C73.05773.84672.58173.56691.52142.24311.10011.10621.1062
H82.64783.13572.74483.83142.18713.14711.10011.79201.7920
H93.82164.57523.29654.20222.16872.59851.10621.79201.7766
H103.82164.57523.29654.20222.16872.59851.10621.79201.7766

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 116.123 C1 C3 C5 122.732
N2 C1 C3 179.224 C3 C5 H6 117.026
C3 C5 C7 125.997 H4 C3 C5 121.145
C5 C7 H8 112.079 C5 C7 H9 110.251
C5 C7 H10 110.251 H6 C5 C7 116.977
H8 C7 H9 108.629 H8 C7 H10 108.629
H9 C7 H10 106.839
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.679      
2 N 0.397      
3 C -0.132      
4 H 0.288      
5 C -0.235      
6 H 0.235      
7 C -0.380      
8 H 0.199      
9 H 0.154      
10 H 0.154      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.461 0.991 0.000 4.569
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.479 -2.247 0.000
y -2.247 -26.761 0.000
z 0.000 0.000 -31.053
Traceless
 xyz
x -7.572 -2.247 0.000
y -2.247 7.005 0.000
z 0.000 0.000 0.567
Polar
3z2-r21.134
x2-y2-9.719
xy-2.247
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.464 -0.317 0.000
y -0.317 6.372 0.000
z 0.000 0.000 3.800


<r2> (average value of r2) Å2
<r2> 104.405
(<r2>)1/2 10.218