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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-210.113440
Energy at 298.15K-210.117885
Nuclear repulsion energy138.677162
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 B3PW91/6-311G*
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' 3173 3054 11.73      
2 A' 3164 3046 3.74      
3 A' 3127 3010 12.24      
4 A' 3034 2921 14.00      
5 A' 2344 2257 23.98      
6 A' 1717 1653 23.92      
7 A' 1496 1441 21.58      
8 A' 1419 1366 4.08      
9 A' 1338 1289 1.28      
10 A' 1318 1269 0.49      
11 A' 1141 1099 0.06      
12 A' 1052 1013 7.50      
13 A' 916 882 8.01      
14 A' 568 547 0.04      
15 A' 398 383 1.49      
16 A' 177 171 3.88      
17 A" 3088 2973 12.39      
18 A" 1487 1431 11.83      
19 A" 1070 1030 0.39      
20 A" 989 952 47.40      
21 A" 806 776 1.68      
22 A" 505 486 5.11      
23 A" 195 188 1.75      
24 A" 174 167 0.39      

Unscaled Zero Point Vibrational Energy (zpe) 17347.1 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 16700.1 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 B3PW91/6-311G*
ABC
1.29275 0.07673 0.07341

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.660 0.401 0.000
H2 2.624 -1.141 0.877
H3 2.624 -1.141 -0.877
C4 2.241 -0.607 0.000
H5 0.254 -1.565 0.000
C6 0.753 -0.598 0.000
H7 0.455 1.496 0.000
C8 0.000 0.508 0.000
N9 -2.578 0.468 0.000
C10 -1.422 0.476 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.77391.77391.09193.10782.15322.46232.66245.23894.0828
H21.77391.75421.09572.56292.13663.52513.22075.51564.4442
H31.77391.75421.09572.56292.13663.52513.22075.51564.4442
C41.09191.09571.09572.20621.48822.75932.50314.93773.8195
H53.10782.56292.56292.20621.08863.06812.08903.48662.6407
C62.15322.13662.13661.48821.08862.11511.33803.49752.4252
H72.46233.52513.52512.75933.06812.11511.08763.20242.1362
C82.66243.22073.22072.50312.08901.33801.08762.57851.4222
N95.23895.51565.51564.93773.48663.49753.20242.57851.1564
C104.08284.44424.44423.81952.64072.42522.13621.42221.1564

picture of (E)-2-Butenenitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C4 H2 108.368 H1 C4 H3 108.368
H1 C4 C6 112.230 H2 C4 H3 106.357
H2 C4 C6 110.652 H3 C4 C6 110.652
C4 C6 H5 116.935 C4 C6 C8 124.592
H5 C6 C8 118.473 C6 C8 H7 121.039
C6 C8 C10 122.929 H7 C8 C10 116.032
C8 C10 N9 179.050
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.237      
2 H 0.247      
3 H 0.247      
4 C -0.689      
5 H 0.234      
6 C -0.135      
7 H 0.245      
8 C -0.223      
9 N -0.277      
10 C 0.113      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.644 -0.677 0.000 4.693
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.166 0.956 0.000
y 0.956 -27.044 0.000
z 0.000 0.000 -30.886
Traceless
 xyz
x -9.201 0.956 0.000
y 0.956 7.482 0.000
z 0.000 0.000 1.719
Polar
3z2-r23.438
x2-y2-11.122
xy0.956
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 151.107
(<r2>)1/2 12.293