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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-35.420783
Energy at 298.15K-35.425204
Nuclear repulsion energy71.370136
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' 3148 3068 14.07      
2 A' 3131 3051 15.33      
3 A' 3092 3013 18.16      
4 A' 2985 2909 24.54      
5 A' 2212 2156 29.24      
6 A' 1669 1626 19.19      
7 A' 1509 1470 20.47      
8 A' 1440 1403 5.89      
9 A' 1333 1299 1.56      
10 A' 1319 1285 0.16      
11 A' 1138 1109 0.27      
12 A' 1026 1000 8.61      
13 A' 909 886 6.71      
14 A' 549 535 0.34      
15 A' 391 381 1.04      
16 A' 176 172 2.97      
17 A" 3052 2974 24.78      
18 A" 1500 1462 13.06      
19 A" 1085 1057 0.44      
20 A" 994 969 53.64      
21 A" 825 804 0.55      
22 A" 481 469 1.91      
23 A" 186 181 1.86      
24 A" 171 167 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 17160.2 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 16722.6 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
1.26238 0.07409 0.07090

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 2.642 0.056 0.000
H2 2.407 -1.473 0.883
H3 2.407 -1.473 -0.883
C4 2.098 -0.895 0.000
H5 -0.028 -1.579 0.000
C6 0.599 -0.685 0.000
H7 0.591 1.453 0.000
C8 0.000 0.538 0.000
N9 -2.612 0.869 0.000
C10 -1.436 0.710 0.000

Atom - Atom Distances (Å)
  H1 H2 H3 C4 H5 C6 H7 C8 N9 C10
H11.78131.78131.09593.13102.17362.48142.68555.31664.1300
H21.78131.76541.09972.59262.16153.55543.25875.60894.5074
H31.78131.76541.09972.59262.16153.55543.25875.60894.5074
C41.09591.09971.09972.23311.51382.78982.54045.02933.8811
H53.13102.59262.59262.23311.09193.09482.11733.55952.6875
C62.17362.16152.16151.51381.09192.13801.36153.56692.4668
H72.48143.55543.55542.78983.09482.13801.08943.25612.1590
C82.68553.25873.25872.54042.11731.36151.08942.63301.4463
N95.31665.60895.60895.02933.55953.56693.25612.63301.1868
C104.13004.50744.50743.88112.68752.46682.15901.44631.1868

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 108.449 H1 C4 H3 108.449
H1 C4 C6 111.799 H2 C4 H3 106.773
H2 C4 C6 110.601 H3 C4 C6 110.601
C4 C6 H5 117.040 C4 C6 C8 124.058
H5 C6 C8 118.901 C6 C8 H7 121.060
C6 C8 C10 122.912 H7 C8 C10 116.028
C8 C10 N9 179.141
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 0.173      
2 H 0.175      
3 H 0.175      
4 C -0.597      
5 H 0.177      
6 C 0.023      
7 H 0.192      
8 C -0.052      
9 N 0.239      
10 C -0.506      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.657 -1.384 0.000 4.859
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.468 2.801 0.000
y 2.801 -28.030 0.000
z 0.000 0.000 -31.245
Traceless
 xyz
x -9.831 2.801 0.000
y 2.801 7.327 0.000
z 0.000 0.000 2.504
Polar
3z2-r25.008
x2-y2-11.439
xy2.801
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.889 -2.524 0.000
y -2.524 7.452 0.000
z 0.000 0.000 4.303


<r2> (average value of r2) Å2
<r2> 123.413
(<r2>)1/2 11.109