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

using model chemistry: B1B95/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 B1B95/CEP-31G*
 hartrees
Energy at 0K-35.410702
Energy at 298.15K-35.415056
Nuclear repulsion energy71.400185
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 B1B95/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' 3209 3071 4.23      
2 A' 3199 3062 13.96      
3 A' 3173 3037 12.69      
4 A' 3070 2938 14.16      
5 A' 2346 2245 37.42      
6 A' 1725 1651 21.86      
7 A' 1477 1414 19.65      
8 A' 1406 1345 3.09      
9 A' 1310 1254 0.66      
10 A' 1282 1227 0.68      
11 A' 1135 1086 0.13      
12 A' 1048 1003 6.61      
13 A' 905 867 9.73      
14 A' 548 525 0.03      
15 A' 383 366 1.04      
16 A' 169 162 3.30      
17 A" 3138 3003 17.33      
18 A" 1470 1407 13.29      
19 A" 1061 1016 4.78      
20 A" 998 956 58.76      
21 A" 816 781 0.50      
22 A" 487 467 3.48      
23 A" 196 187 1.96      
24 A" 170 163 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 17359.6 cm-1
Scaled (by 0.9572) Zero Point Vibrational Energy (zpe) 16616.6 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 B1B95/CEP-31G*
ABC
1.23384 0.07457 0.07126

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.673 0.455 0.000
H2 2.677 -1.101 0.886
H3 2.677 -1.101 -0.886
C4 2.283 -0.573 0.000
H5 0.280 -1.575 0.000
C6 0.775 -0.598 0.000
H7 0.443 1.527 0.000
C8 0.000 0.527 0.000
N9 -2.630 0.417 0.000
C10 -1.449 0.457 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.79041.79041.09953.13752.17002.47492.67405.30314.1218
H21.79041.77111.10362.59872.15723.56183.25615.59034.4983
H31.79041.77111.10362.59872.15723.56183.25615.59034.4983
C41.09951.10361.10362.23941.50812.79302.53465.01193.8717
H53.13752.59872.59872.23941.09523.10632.12043.52602.6679
C62.17002.15722.15721.50811.09522.15121.36643.55322.4618
H72.47493.56183.56182.79303.10632.15121.09383.26722.1731
C82.67403.25613.25612.53462.12041.36641.09382.63221.4504
N95.30315.59035.59035.01193.52603.55323.26722.63221.1819
C104.12184.49834.49833.87172.66792.46182.17311.45041.1819

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 108.716 H1 C4 H3 108.716
H1 C4 C6 111.694 H2 C4 H3 106.722
H2 C4 C6 110.420 H3 C4 C6 110.420
C4 C6 H5 117.819 C4 C6 C8 123.645
H5 C6 C8 118.536 C6 C8 H7 121.553
C6 C8 C10 121.818 H7 C8 C10 116.629
C8 C10 N9 179.220
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.183      
2 H 0.159      
3 H 0.159      
4 C -0.451      
5 H 0.313      
6 C -0.217      
7 H 0.315      
8 C -0.198      
9 N 0.380      
10 C -0.643      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.749 -0.598 0.000 4.786
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.816 0.745 0.000
y 0.745 -26.417 0.000
z 0.000 0.000 -30.442
Traceless
 xyz
x -9.386 0.745 0.000
y 0.745 7.712 0.000
z 0.000 0.000 1.675
Polar
3z2-r23.349
x2-y2-11.398
xy0.745
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.190 -1.816 0.000
y -1.816 6.212 0.000
z 0.000 0.000 4.049


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000