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

using model chemistry: B3PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G**
 hartrees
Energy at 0K-210.075043
Energy at 298.15K-210.079472
Nuclear repulsion energy138.310347
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 B3PW91/6-31G**
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' 3192 3059 7.29      
2 A' 3184 3052 4.68      
3 A' 3149 3018 9.05      
4 A' 3046 2920 11.72      
5 A' 2354 2256 23.94      
6 A' 1724 1652 23.06      
7 A' 1490 1428 17.19      
8 A' 1416 1357 2.24      
9 A' 1333 1277 0.84      
10 A' 1311 1257 0.64      
11 A' 1140 1092 0.14      
12 A' 1054 1010 6.63      
13 A' 916 878 8.54      
14 A' 562 539 0.04      
15 A' 395 379 1.52      
16 A' 175 168 3.98      
17 A" 3109 2980 9.35      
18 A" 1480 1419 9.34      
19 A" 1066 1022 0.22      
20 A" 991 950 39.36      
21 A" 805 772 1.46      
22 A" 502 481 5.81      
23 A" 198 190 1.97      
24 A" 174 167 0.68      

Unscaled Zero Point Vibrational Energy (zpe) 17382.9 cm-1
Scaled (by 0.9584) Zero Point Vibrational Energy (zpe) 16659.8 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 B3PW91/6-31G**
ABC
1.28460 0.07636 0.07305

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.659 0.414 0.000
H2 2.633 -1.130 0.879
H3 2.633 -1.130 -0.879
C4 2.248 -0.598 0.000
H5 0.262 -1.566 0.000
C6 0.758 -0.597 0.000
H7 0.452 1.500 0.000
C8 0.000 0.510 0.000
N9 -2.589 0.457 0.000
C10 -1.425 0.470 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.77681.77681.09293.10962.15332.45972.66065.24824.0844
H21.77681.75711.09662.56642.13853.52813.22435.52854.4500
H31.77681.75711.09662.56642.13853.52813.22435.52854.4500
C41.09291.09661.09662.20961.49022.76242.50664.95113.8255
H53.10962.56642.56642.20961.08903.07252.09323.49612.6444
C62.15332.13852.13851.49021.08902.11931.34183.50912.4298
H72.45973.52813.52812.76243.07252.11931.08813.21482.1410
C82.66063.22433.22432.50662.09321.34181.08812.58971.4257
N95.24825.52855.52854.95113.49613.50913.21482.58971.1641
C104.08444.45004.45003.82552.64442.42982.14101.42571.1641

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 108.485 H1 C4 H3 108.485
H1 C4 C6 112.021 H2 C4 H3 106.475
H2 C4 C6 110.592 H3 C4 C6 110.592
C4 C6 H5 117.041 C4 C6 C8 124.445
H5 C6 C8 118.514 C6 C8 H7 121.080
C6 C8 C10 122.770 H7 C8 C10 116.150
C8 C10 N9 179.017
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.149      
2 H 0.162      
3 H 0.162      
4 C -0.435      
5 H 0.153      
6 C -0.052      
7 H 0.166      
8 C -0.128      
9 N -0.488      
10 C 0.311      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.620 -0.658 0.000 4.667
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.598 0.862 0.000
y 0.862 -26.729 0.000
z 0.000 0.000 -30.301
Traceless
 xyz
x -9.082 0.862 0.000
y 0.862 7.220 0.000
z 0.000 0.000 1.862
Polar
3z2-r23.724
x2-y2-10.868
xy0.862
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> 151.404
(<r2>)1/2 12.305