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

using model chemistry: B3LYP/CEP-121G*

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-121G*
 hartrees
Energy at 0K-35.484647
Energy at 298.15K-35.489007
Nuclear repulsion energy71.804351
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-121G*
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' 3157 3060 12.61      
2 A' 3146 3049 7.69      
3 A' 3104 3009 17.61      
4 A' 3013 2921 20.73      
5 A' 2277 2208 24.96      
6 A' 1672 1621 19.91      
7 A' 1495 1449 17.86      
8 A' 1420 1377 1.44      
9 A' 1319 1278 1.01      
10 A' 1301 1262 1.14      
11 A' 1123 1089 0.03      
12 A' 1016 984 6.70      
13 A' 900 872 6.12      
14 A' 548 531 0.03      
15 A' 388 376 1.26      
16 A' 174 169 3.55      
17 A" 3065 2971 20.25      
18 A" 1486 1441 9.54      
19 A" 1064 1031 1.96      
20 A" 981 951 44.19      
21 A" 789 765 1.34      
22 A" 482 467 3.25      
23 A" 192 186 1.59      
24 A" 170 164 0.47      

Unscaled Zero Point Vibrational Energy (zpe) 17138.9 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 16614.4 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-121G*
ABC
1.26411 0.07520 0.07193

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.634 0.068 0.000
H2 2.395 -1.463 0.882
H3 2.395 -1.463 -0.882
C4 2.088 -0.883 0.000
H5 -0.035 -1.563 0.000
C6 0.595 -0.672 0.000
H7 0.584 1.462 0.000
C8 0.000 0.541 0.000
N9 -2.593 0.844 0.000
C10 -1.435 0.698 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.78221.78221.09563.12782.16912.47982.67635.28464.1175
H21.78221.76371.09922.58702.15513.55153.24475.56604.4849
H31.78221.76371.09922.58702.15513.55153.24475.56604.4849
C41.09561.09921.09922.22981.50842.78602.52744.98983.8615
H53.12782.58702.58702.22981.09173.08812.10463.51282.6597
C62.16912.15512.15511.50841.09172.13371.35063.52992.4485
H72.47983.55153.55152.78603.08812.13371.09053.23642.1582
C82.67633.24473.24472.52742.10461.35061.09052.61091.4434
N95.28465.56605.56604.98983.51283.52993.23642.61091.1675
C104.11754.48494.48493.86152.65972.44852.15821.44341.1675

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 108.583 H1 C4 H3 108.583
H1 C4 C6 111.830 H2 C4 H3 106.697
H2 C4 C6 110.491 H3 C4 C6 110.491
C4 C6 H5 117.185 C4 C6 C8 124.171
H5 C6 C8 118.644 C6 C8 H7 121.514
C6 C8 C10 122.377 H7 C8 C10 116.109
C8 C10 N9 179.070
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.189      
2 H 0.187      
3 H 0.187      
4 C -0.597      
5 H 0.212      
6 C -0.044      
7 H 0.217      
8 C -0.151      
9 N 0.019      
10 C -0.221      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.562 -1.312 0.000 4.746
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.621 2.644 0.000
y 2.644 -27.738 0.000
z 0.000 0.000 -31.038
Traceless
 xyz
x -9.232 2.644 0.000
y 2.644 7.091 0.000
z 0.000 0.000 2.141
Polar
3z2-r24.283
x2-y2-10.882
xy2.644
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.968 -2.437 0.000
y -2.437 7.488 0.000
z 0.000 0.000 4.499


<r2> (average value of r2) Å2
<r2> 121.770
(<r2>)1/2 11.035