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

using model chemistry: mPW1PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-210.119326
Energy at 298.15K-210.123783
Nuclear repulsion energy138.374931
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 mPW1PW91/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3199 3066 5.91      
2 A' 3190 3057 4.52      
3 A' 3158 3026 8.53      
4 A' 3051 2924 10.97      
5 A' 2353 2255 32.37      
6 A' 1728 1656 26.20      
7 A' 1461 1400 18.84      
8 A' 1392 1334 2.78      
9 A' 1329 1274 1.23      
10 A' 1305 1250 1.29      
11 A' 1143 1095 0.18      
12 A' 1058 1014 7.34      
13 A' 911 873 8.68      
14 A' 564 540 0.04      
15 A' 396 380 1.67      
16 A' 175 168 4.28      
17 A" 3117 2987 7.03      
18 A" 1449 1389 9.01      
19 A" 1059 1015 1.71      
20 A" 984 943 41.05      
21 A" 809 775 1.11      
22 A" 495 475 4.02      
23 A" 201 193 1.65      
24 A" 174 167 0.68      

Unscaled Zero Point Vibrational Energy (zpe) 17351.1 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 16627.5 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 mPW1PW91/aug-cc-pVDZ
ABC
1.28233 0.07650 0.07317

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.654 0.423 0.000
H2 2.630 -1.127 0.881
H3 2.630 -1.127 -0.881
C4 2.247 -0.594 0.000
H5 0.263 -1.569 0.000
C6 0.759 -0.595 0.000
H7 0.450 1.504 0.000
C8 0.000 0.510 0.000
N9 -2.587 0.453 0.000
C10 -1.426 0.466 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.78361.78361.09543.11232.15112.45512.65545.24144.0798
H21.78361.76171.09912.56442.13523.52953.22115.52254.4458
H31.78361.76171.09912.56442.13523.52953.22115.52254.4458
C41.09541.09911.09912.21091.48742.76242.50324.94623.8223
H53.11232.56442.56442.21091.09283.07872.09523.49452.6439
C62.15112.13522.13521.48741.09282.12241.34113.50732.4292
H72.45513.52953.52952.76243.07872.12241.09123.21362.1435
C82.65543.22113.22112.50322.09521.34111.09122.58791.4263
N95.24145.52255.52254.94623.49453.50733.21362.58791.1617
C104.07984.44584.44583.82232.64392.42922.14351.42631.1617

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 108.740 H1 C4 H3 108.740
H1 C4 C6 111.893 H2 C4 H3 106.536
H2 C4 C6 110.382 H3 C4 C6 110.382
C4 C6 H5 117.112 C4 C6 C8 124.421
H5 C6 C8 118.467 C6 C8 H7 121.175
C6 C8 C10 122.727 H7 C8 C10 116.098
C8 C10 N9 178.852
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H -0.176      
2 H 0.028      
3 H 0.028      
4 C 0.228      
5 H -0.534      
6 C 0.501      
7 H -0.604      
8 C 1.419      
9 N -0.234      
10 C -0.656      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.841 -0.675 0.000 4.888
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.808 0.919 0.000
y 0.919 -27.337 0.000
z 0.000 0.000 -31.049
Traceless
 xyz
x -9.615 0.919 0.000
y 0.919 7.592 0.000
z 0.000 0.000 2.023
Polar
3z2-r24.047
x2-y2-11.471
xy0.919
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.256 -1.765 0.000
y -1.765 7.394 0.000
z 0.000 0.000 5.669


<r2> (average value of r2) Å2
<r2> 151.731
(<r2>)1/2 12.318