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

using model chemistry: HF/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 HF/6-31G
 hartrees
Energy at 0K-208.720057
Energy at 298.15K-208.724778
Nuclear repulsion energy139.018970
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 HF/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' 3370 3043 6.17      
2 A' 3344 3019 9.34      
3 A' 3280 2961 16.47      
4 A' 3189 2880 21.50      
5 A' 2544 2297 55.07      
6 A' 1872 1691 21.98      
7 A' 1644 1484 17.56      
8 A' 1589 1435 3.67      
9 A' 1476 1332 2.87      
10 A' 1466 1324 0.08      
11 A' 1250 1128 0.81      
12 A' 1110 1002 7.17      
13 A' 1001 904 5.08      
14 A' 614 554 0.16      
15 A' 433 391 1.62      
16 A' 198 179 4.74      
17 A" 3248 2932 19.14      
18 A" 1636 1477 12.63      
19 A" 1224 1105 0.54      
20 A" 1117 1008 63.57      
21 A" 948 856 2.11      
22 A" 536 484 4.01      
23 A" 195 176 1.38      
24 A" 192 173 1.01      

Unscaled Zero Point Vibrational Energy (zpe) 18736.2 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 16916.9 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 HF/6-31G
ABC
1.30845 0.07679 0.07351

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.649 0.415 0.000
H2 2.630 -1.109 0.873
H3 2.630 -1.109 -0.873
C4 2.248 -0.590 0.000
H5 0.272 -1.555 0.000
C6 0.752 -0.591 0.000
H7 0.441 1.483 0.000
C8 0.000 0.504 0.000
N9 -2.578 0.447 0.000
C10 -1.430 0.468 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.75651.75651.08203.08692.14762.45342.65075.22724.0792
H21.75651.74571.08492.55342.13493.50373.20665.50534.4418
H31.75651.74571.08492.55342.13493.50373.20665.50534.4418
C41.08201.08491.08492.19901.49652.75072.50054.93653.8271
H53.08692.55342.55342.19901.07633.04252.07673.48302.6431
C62.14762.13492.13491.49651.07632.09761.32863.48802.4249
H72.45343.50373.50372.75073.04252.09761.07363.19132.1282
C82.65073.20663.20662.50052.07671.32861.07362.57851.4301
N95.22725.50535.50534.93653.48303.48803.19132.57851.1484
C104.07924.44184.44183.82712.64312.42492.12821.43011.1484

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 108.306 H1 C4 H3 108.306
H1 C4 C6 111.788 H2 C4 H3 107.130
H2 C4 C6 110.578 H3 C4 C6 110.578
C4 C6 H5 116.507 C4 C6 C8 124.426
H5 C6 C8 119.067 C6 C8 H7 121.302
C6 C8 C10 123.003 H7 C8 C10 115.694
C8 C10 N9 179.545
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.179 0.044    
2 H 0.186 0.039    
3 H 0.186 0.039    
4 C -0.511 -0.045    
5 H 0.214 0.105    
6 C -0.095 0.055    
7 H 0.233 0.207    
8 C -0.121 -0.455    
9 N -0.309 -0.571    
10 C 0.038 0.583    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.908 -0.727 0.000 4.962
CHELPG 4.881 -0.684 0.000 4.929
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.220 0.964 0.000
y 0.964 -27.471 0.000
z 0.000 0.000 -31.291
Traceless
 xyz
x -10.839 0.964 0.000
y 0.964 8.284 0.000
z 0.000 0.000 2.555
Polar
3z2-r25.109
x2-y2-12.748
xy0.964
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.883 -1.816 0.000
y -1.816 6.063 0.000
z 0.000 0.000 3.359


<r2> (average value of r2) Å2
<r2> 151.431
(<r2>)1/2 12.306