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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-209.878471
Energy at 298.15K-209.882922
Nuclear repulsion energy140.728843
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 PBEPBEultrafine/6-31G*
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 3128 3076 5.94      
2 A 3104 3053 9.67      
3 A 3081 3030 1.43      
4 A 2977 2928 8.47      
5 A 2250 2213 11.61      
6 A 1653 1625 14.62      
7 A 1460 1436 16.79      
8 A 1400 1377 7.71      
9 A 1368 1345 2.98      
10 A 1233 1213 0.34      
11 A 1101 1083 0.41      
12 A 958 942 15.74      
13 A 900 885 3.00      
14 A 651 641 1.94      
15 A 385 379 0.13      
16 A 153 151 4.30      
17 A 3031 2981 8.83      
18 A 1458 1434 9.44      
19 A 1033 1016 0.00      
20 A 946 931 0.38      
21 A 729 717 36.83      
22 A 519 510 2.45      
23 A 281 276 3.34      
24 A 162 159 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 16980.7 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 16700.5 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 PBEPBEultrafine/6-31G*
ABC
0.39927 0.11367 0.08997

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.223 0.256 0.000
N2 -2.240 -0.338 0.000
C3 0.000 0.993 0.000
H4 -0.096 2.085 0.000
C5 1.221 0.407 0.000
H6 2.094 1.072 0.000
C7 1.491 -1.063 0.000
H8 0.561 -1.654 0.000
H9 2.090 -1.348 0.885
H10 2.090 -1.348 -0.885

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 C7 H8 H9 H10
C11.17791.42772.14792.44863.41593.01752.61383.78553.7855
N21.17792.60553.23493.54034.55773.80063.09504.53344.5334
C31.42772.60551.09561.35482.09592.54052.70653.26093.2609
H42.14793.23491.09562.13322.41323.52573.79644.16474.1647
C52.44863.54031.35482.13321.09761.49492.16422.14872.1487
H63.41594.55772.09592.41321.09762.21913.12772.57652.5765
C73.01753.80062.54053.52571.49492.21911.10151.10591.1059
H82.61383.09502.70653.79642.16423.12771.10151.79291.7929
H93.78554.53343.26094.16472.14872.57651.10591.79291.7700
H103.78554.53343.26094.16472.14872.57651.10591.79291.7700

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 116.066 C1 C3 C5 123.254
N2 C1 C3 179.190 C3 C5 H6 117.050
C3 C5 C7 126.047 H4 C3 C5 120.680
C5 C7 H8 112.040 C5 C7 H9 110.521
C5 C7 H10 110.521 H6 C5 C7 116.903
H8 C7 H9 108.629 H8 C7 H10 108.629
H9 C7 H10 106.306
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.319      
2 N -0.473      
3 C -0.170      
4 H 0.190      
5 C -0.061      
6 H 0.163      
7 C -0.546      
8 H 0.200      
9 H 0.189      
10 H 0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.934 1.097 0.000 4.084
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.498 -2.436 0.000
y -2.436 -26.774 0.000
z 0.000 0.000 -30.380
Traceless
 xyz
x -5.921 -2.436 0.000
y -2.436 5.665 0.000
z 0.000 0.000 0.256
Polar
3z2-r20.512
x2-y2-7.724
xy-2.436
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.409 -0.021 0.000
y -0.021 6.499 0.000
z 0.000 0.000 3.704


<r2> (average value of r2) Å2
<r2> 127.227
(<r2>)1/2 11.279