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

using model chemistry: B3LYP/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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-35.463731
Energy at 298.15K-35.468077
Nuclear repulsion energy71.266800
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 B3LYP/CEP-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' 3182 3073 6.14      
2 A' 3171 3062 11.98      
3 A' 3132 3024 18.66      
4 A' 3040 2936 19.18      
5 A' 2320 2240 36.44      
6 A' 1702 1644 20.11      
7 A' 1485 1434 18.78      
8 A' 1413 1364 1.33      
9 A' 1317 1272 0.74      
10 A' 1290 1246 0.97      
11 A' 1128 1090 0.09      
12 A' 1032 997 7.33      
13 A' 904 873 8.18      
14 A' 546 527 0.12      
15 A' 385 372 1.13      
16 A' 173 167 3.12      
17 A" 3094 2988 23.65      
18 A" 1477 1426 12.34      
19 A" 1066 1029 4.85      
20 A" 999 964 61.83      
21 A" 809 782 0.89      
22 A" 482 466 3.01      
23 A" 192 186 1.67      
24 A" 169 163 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 17253.1 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 16661.3 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 B3LYP/CEP-31G*
ABC
1.23219 0.07423 0.07095

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.642 0.092 0.000
H2 2.421 -1.451 0.888
H3 2.421 -1.451 -0.888
C4 2.108 -0.871 0.000
H5 -0.026 -1.572 0.000
C6 0.606 -0.675 0.000
H7 0.582 1.477 0.000
C8 0.000 0.550 0.000
N9 -2.622 0.824 0.000
C10 -1.446 0.693 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.79381.79381.10153.14372.17592.48212.68105.31384.1318
H21.79381.77571.10562.60572.16453.57003.26415.60254.5099
H31.79381.77571.10562.60572.16453.57003.26415.60254.5099
C41.10151.10561.10562.24541.51482.80072.54235.02383.8829
H53.14372.60572.60572.24541.09623.10902.12213.53202.6731
C62.17592.16452.16451.51481.09622.15311.36733.55832.4663
H72.48213.57003.57002.80073.10902.15311.09473.26972.1748
C82.68103.26413.26412.54232.12211.36731.09472.63581.4533
N95.31385.60255.60255.02383.53203.55833.26972.63581.1825
C104.13184.50994.50993.88292.67312.46632.17481.45331.1825

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 108.729 H1 C4 H3 108.729
H1 C4 C6 111.569 H2 C4 H3 106.849
H2 C4 C6 110.412 H3 C4 C6 110.412
C4 C6 H5 117.739 C4 C6 C8 123.716
H5 C6 C8 118.545 C6 C8 H7 121.587
C6 C8 C10 121.916 H7 C8 C10 116.497
C8 C10 N9 179.281
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.190      
2 H 0.164      
3 H 0.164      
4 C -0.479      
5 H 0.316      
6 C -0.209      
7 H 0.318      
8 C -0.200      
9 N 0.366      
10 C -0.630      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.680 -1.319 0.000 4.862
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.376 2.593 0.000
y 2.593 -27.199 0.000
z 0.000 0.000 -30.786
Traceless
 xyz
x -9.383 2.593 0.000
y 2.593 7.382 0.000
z 0.000 0.000 2.001
Polar
3z2-r24.002
x2-y2-11.177
xy2.593
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.804 -2.566 0.000
y -2.566 7.012 0.000
z 0.000 0.000 4.123


<r2> (average value of r2) Å2
<r2> 122.900
(<r2>)1/2 11.086