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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-35.355365
Energy at 298.15K-35.359785
Nuclear repulsion energy71.160544
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' 3215 3079 7.91      
2 A' 3201 3065 23.82      
3 A' 3175 3040 15.97      
4 A' 3061 2931 19.38      
5 A' 2268 2171 33.85      
6 A' 1717 1644 21.22      
7 A' 1495 1432 23.35      
8 A' 1432 1371 11.43      
9 A' 1335 1279 1.43      
10 A' 1312 1256 0.00      
11 A' 1152 1103 0.29      
12 A' 1058 1013 8.23      
13 A' 921 882 10.19      
14 A' 553 529 0.23      
15 A' 389 373 0.86      
16 A' 174 167 3.12      
17 A" 3139 3006 27.20      
18 A" 1487 1424 18.93      
19 A" 1089 1043 1.19      
20 A" 1019 976 73.50      
21 A" 855 818 0.03      
22 A" 491 471 2.82      
23 A" 190 182 2.23      
24 A" 174 166 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 17451.7 cm-1
Scaled (by 0.9575) Zero Point Vibrational Energy (zpe) 16710.0 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
1.24187 0.07384 0.07061

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 2.681 0.443 0.000
H2 2.687 -1.110 0.886
H3 2.687 -1.110 -0.886
C4 2.290 -0.584 0.000
H5 0.288 -1.588 0.000
C6 0.778 -0.609 0.000
H7 0.451 1.516 0.000
C8 0.000 0.521 0.000
N9 -2.642 0.440 0.000
C10 -1.451 0.467 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.78781.78781.09933.13892.17462.47482.68215.32314.1316
H21.78781.77111.10382.60192.16363.56093.26545.62034.5154
H31.78781.77111.10382.60192.16363.56093.26545.62034.5154
C41.09931.10381.10382.23951.51232.79152.54235.03713.8851
H53.13892.60192.60192.23951.09493.10782.12783.56322.6909
C62.17462.16362.16361.51231.09492.14951.37113.57712.4740
H72.47483.56093.56092.79153.10782.14951.09263.27442.1716
C82.68213.26543.26542.54232.12781.37111.09262.64331.4515
N95.32315.62035.62035.03713.56323.57713.27442.64331.1918
C104.13164.51544.51543.88512.69092.47402.17161.45151.1918

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 108.479 H1 C4 H3 108.479
H1 C4 C6 111.773 H2 C4 H3 106.696
H2 C4 C6 110.622 H3 C4 C6 110.622
C4 C6 H5 117.516 C4 C6 C8 123.630
H5 C6 C8 118.854 C6 C8 H7 121.081
C6 C8 C10 122.419 H7 C8 C10 116.499
C8 C10 N9 179.117
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 0.179      
2 H 0.158      
3 H 0.158      
4 C -0.472      
5 H 0.294      
6 C -0.178      
7 H 0.305      
8 C -0.160      
9 N 0.398      
10 C -0.683      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.871 -0.657 0.000 4.915
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.994 0.827 0.000
y 0.827 -26.707 0.000
z 0.000 0.000 -30.700
Traceless
 xyz
x -10.290 0.827 0.000
y 0.827 8.140 0.000
z 0.000 0.000 2.151
Polar
3z2-r24.301
x2-y2-12.287
xy0.827
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.960 -1.884 0.000
y -1.884 6.112 0.000
z 0.000 0.000 3.829


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