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All results from a given calculation for C2H8N2 (Ethylenediamine)

using model chemistry: BLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at BLYP/6-31G
 hartrees
Energy at 0K-190.357891
Energy at 298.15K-190.367766
Nuclear repulsion energy129.440470
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 BLYP/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 Ag 3405 3379 0.00      
2 Ag 2942 2920 0.00      
3 Ag 1665 1652 0.00      
4 Ag 1479 1468 0.00      
5 Ag 1373 1363 0.00      
6 Ag 1066 1058 0.00      
7 Ag 968 961 0.00      
8 Ag 600 595 0.00      
9 Ag 445 441 0.00      
10 Au 3518 3491 1.70      
11 Au 3006 2984 94.23      
12 Au 1359 1349 0.74      
13 Au 1050 1042 0.09      
14 Au 748 742 1.47      
15 Au 261 259 120.57      
16 Au 143 142 0.00      
17 Bg 3518 3492 0.00      
18 Bg 2976 2953 0.00      
19 Bg 1346 1336 0.00      
20 Bg 1275 1266 0.00      
21 Bg 919 912 0.00      
22 Bg 295 293 0.00      
23 Bu 3405 3379 4.84      
24 Bu 2951 2928 112.73      
25 Bu 1666 1653 42.39      
26 Bu 1498 1487 0.53      
27 Bu 1323 1313 11.27      
28 Bu 1047 1039 28.74      
29 Bu 608 604 611.47      
30 Bu 259 257 25.48      

Unscaled Zero Point Vibrational Energy (zpe) 23556.8 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 23377.8 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 BLYP/6-31G
ABC
0.86676 0.11949 0.11356

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.404 0.671 0.000
C2 -0.404 -0.671 0.000
N3 -0.404 1.909 0.000
N4 0.404 -1.909 0.000
H5 0.967 -2.043 0.844
H6 0.967 -2.043 -0.844
H7 -0.967 2.043 0.844
H8 -0.967 2.043 -0.844
H9 -1.065 -0.690 -0.887
H10 -1.065 -0.690 0.887
H11 1.065 0.690 -0.887
H12 1.065 0.690 0.887

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10 H11 H12
C11.56571.47832.57992.89752.89752.11532.11532.19032.19031.10671.1067
C21.56572.57991.47832.11532.11532.89752.89751.10671.10672.19032.1903
N31.47832.57993.90274.26764.26761.02361.02362.82532.82532.10482.1048
N42.57991.47833.90271.02361.02364.26764.26762.10482.10482.82532.8253
H52.89752.11534.26761.02361.68844.52094.82582.99272.44173.23712.7358
H62.89752.11534.26761.02361.68844.82584.52092.44172.99272.73583.2371
H72.11532.89751.02364.26764.52094.82581.68843.23712.73582.99272.4417
H82.11532.89751.02364.26764.82584.52091.68842.73583.23712.44172.9927
H92.19031.10672.82532.10482.99272.44173.23712.73581.77362.53913.0972
H102.19031.10672.82532.10482.44172.99272.73583.23711.77363.09722.5391
H111.10672.19032.10482.82533.23712.73582.99272.44172.53913.09721.7736
H121.10672.19032.10482.82532.73583.23712.44172.99273.09722.53911.7736

picture of Ethylenediamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 115.861 C1 C2 H9 108.877
C1 C2 H10 108.877 C1 N3 H7 114.216
C1 N3 H8 114.216 C2 C1 N3 115.861
C2 C1 H11 108.877 C2 C1 H12 108.877
C2 N4 H5 114.216 C2 N4 H6 114.216
N3 C1 H11 108.161 N3 C1 H12 108.161
N4 C2 H9 108.161 N4 C2 H10 108.161
H5 N4 H6 111.125 H7 N3 H8 111.125
H9 C2 H10 106.513 H11 C1 H12 106.513
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.107      
2 C -0.107      
3 N -0.632      
4 N -0.632      
5 H 0.258      
6 H 0.258      
7 H 0.258      
8 H 0.258      
9 H 0.111      
10 H 0.111      
11 H 0.111      
12 H 0.111      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.166 -5.922 0.000
y -5.922 -34.313 0.000
z 0.000 0.000 -23.174
Traceless
 xyz
x 4.578 -5.922 0.000
y -5.922 -10.643 0.000
z 0.000 0.000 6.065
Polar
3z2-r212.131
x2-y210.147
xy-5.922
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.079 -0.921 0.000
y -0.921 5.896 0.000
z 0.000 0.000 5.393


<r2> (average value of r2) Å2
<r2> 110.545
(<r2>)1/2 10.514