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

using model chemistry: B3LYP/3-21G

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/3-21G
 hartrees
Energy at 0K-209.002828
Energy at 298.15K-209.007558
Nuclear repulsion energy141.588749
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/3-21G
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 3193 3081 7.29      
2 A 3172 3061 4.62      
3 A 3137 3027 2.56      
4 A 3044 2937 7.46      
5 A 2329 2247 8.27      
6 A 1692 1632 8.75      
7 A 1546 1491 18.67      
8 A 1468 1416 13.01      
9 A 1454 1403 0.43      
10 A 1302 1256 0.94      
11 A 1153 1113 2.15      
12 A 978 944 14.34      
13 A 897 865 2.28      
14 A 706 681 1.14      
15 A 428 413 0.15      
16 A 171 165 3.50      
17 A 3087 2978 10.30      
18 A 1550 1495 11.65      
19 A 1108 1069 0.32      
20 A 1015 980 1.23      
21 A 798 770 40.68      
22 A 588 567 10.57      
23 A 311 300 1.88      
24 A 158 152 0.22      

Unscaled Zero Point Vibrational Energy (zpe) 17641.9 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 17022.7 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/3-21G
ABC
0.39868 0.11585 0.09129

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.217 0.256 0.000
N2 -2.215 -0.349 0.000
C3 0.000 0.991 0.000
H4 -0.098 2.072 0.000
C5 1.214 0.418 0.000
H6 2.085 1.068 0.000
C7 1.477 -1.062 0.000
H8 0.545 -1.632 0.000
H9 2.064 -1.344 0.883
H10 2.064 -1.344 -0.883

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.16691.42162.13342.43613.40042.99942.58233.75633.7563
N21.16692.58853.21623.51344.52743.76053.04334.48164.4816
C31.42162.58851.08581.34202.08642.52912.67883.23963.2396
H42.13343.21621.08582.11072.40243.50763.75954.13844.1384
C52.43613.51341.34202.11071.08711.50352.15672.14712.1471
H63.40044.52742.08642.40241.08712.21523.10882.56922.5692
C72.99943.76052.52913.50761.50352.21521.09311.09771.0977
H82.58233.04332.67883.75952.15673.10881.09311.78141.7814
H93.75634.48163.23964.13842.14712.56921.09771.78141.7669
H103.75634.48163.23964.13842.14712.56921.09771.78141.7669

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 115.966 C1 C3 C5 123.621
N2 C1 C3 179.902 C3 C5 H6 118.014
C3 C5 C7 125.354 H4 C3 C5 120.413
C5 C7 H8 111.337 C5 C7 H9 110.297
C5 C7 H10 110.297 H6 C5 C7 116.632
H8 C7 H9 108.807 H8 C7 H10 108.807
H9 C7 H10 107.184
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.281     0.583
2 N -0.485     -0.484
3 C -0.170     -0.619
4 H 0.236     0.248
5 C -0.118     0.159
6 H 0.208     0.107
7 C -0.620     -0.426
8 H 0.229     0.160
9 H 0.219     0.136
10 H 0.219     0.136


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.726 1.091 0.000 3.882
CHELPG        
AIM        
ESP 3.712 1.081 0.000 3.867


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.506 -2.463 0.000
y -2.463 -27.094 0.000
z 0.000 0.000 -30.850
Traceless
 xyz
x -5.534 -2.463 0.000
y -2.463 5.584 0.000
z 0.000 0.000 -0.050
Polar
3z2-r2-0.100
x2-y2-7.412
xy-2.463
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.325 -0.068 0.000
y -0.068 5.809 0.000
z 0.000 0.000 3.098


<r2> (average value of r2) Å2
<r2> 125.811
(<r2>)1/2 11.217