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All results from a given calculation for C2H8N2 (Ethylenediamine)

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-190.451444
Energy at 298.15K-190.461627
Nuclear repulsion energy131.952670
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 B1B95/6-311G*
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 3508 3363 0.00      
2 Ag 3029 2903 0.00      
3 Ag 1718 1647 0.00      
4 Ag 1486 1425 0.00      
5 Ag 1401 1343 0.00      
6 Ag 1133 1086 0.00      
7 Ag 1071 1027 0.00      
8 Ag 852 816 0.00      
9 Ag 455 436 0.00      
10 Au 3588 3439 1.40      
11 Au 3086 2958 88.14      
12 Au 1412 1354 3.09      
13 Au 1084 1039 0.13      
14 Au 750 719 0.50      
15 Au 265 254 117.90      
16 Au 146 140 0.21      
17 Bg 3588 3440 0.00      
18 Bg 3057 2930 0.00      
19 Bg 1386 1329 0.00      
20 Bg 1310 1255 0.00      
21 Bg 946 907 0.00      
22 Bg 302 289 0.00      
23 Bu 3508 3362 5.67      
24 Bu 3037 2911 107.01      
25 Bu 1717 1645 63.88      
26 Bu 1506 1443 2.10      
27 Bu 1329 1274 23.16      
28 Bu 1107 1061 13.70      
29 Bu 889 852 451.08      
30 Bu 258 247 21.67      

Unscaled Zero Point Vibrational Energy (zpe) 24459.2 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 23446.5 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 B1B95/6-311G*
ABC
0.88555 0.12531 0.11863

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.395 0.656 0.000
C2 -0.395 -0.656 0.000
N3 -0.395 1.878 0.000
N4 0.395 -1.878 0.000
H5 1.002 -1.898 0.811
H6 1.002 -1.898 -0.811
H7 -1.002 1.898 0.811
H8 -1.002 1.898 -0.811
H9 -1.055 -0.677 -0.874
H10 -1.055 -0.677 0.874
H11 1.055 0.677 -0.874
H12 1.055 0.677 0.874

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10 H11 H12
C11.53051.45512.53362.74752.74752.03782.03782.15462.15461.09561.0956
C21.53052.53361.45512.03782.03782.74752.74751.09561.09562.15462.1546
N31.45512.53363.83814.10714.10711.01351.01352.77992.77992.07572.0757
N42.53361.45513.83811.01351.01354.10714.10712.07572.07572.77992.7799
H52.74752.03784.10711.01351.62274.29274.58912.92622.39313.07802.5766
H62.74752.03784.10711.01351.62274.58914.29272.39312.92622.57663.0780
H72.03782.74751.01354.10714.29274.58911.62273.07802.57662.92622.3931
H82.03782.74751.01354.10714.58914.29271.62272.57663.07802.39312.9262
H92.15461.09562.77992.07572.92622.39313.07802.57661.74742.50783.0565
H102.15461.09562.77992.07572.39312.92622.57663.07801.74743.05652.5078
H111.09562.15462.07572.77993.07802.57662.92622.39312.50783.05651.7474
H121.09562.15462.07572.77992.57663.07802.39312.92623.05652.50781.7474

picture of Ethylenediamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 116.094 C1 C2 H9 109.135
C1 C2 H10 109.135 C1 N3 H7 109.981
C1 N3 H8 109.981 C2 C1 N3 116.094
C2 C1 H11 109.135 C2 C1 H12 109.135
C2 N4 H5 109.981 C2 N4 H6 109.981
N3 C1 H11 108.104 N3 C1 H12 108.104
N4 C2 H9 108.104 N4 C2 H10 108.104
H5 N4 H6 106.365 H7 N3 H8 106.365
H9 C2 H10 105.778 H11 C1 H12 105.778
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.311      
2 C -0.311      
3 N -0.728      
4 N -0.728      
5 H 0.314      
6 H 0.314      
7 H 0.314      
8 H 0.314      
9 H 0.206      
10 H 0.206      
11 H 0.206      
12 H 0.206      


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 -24.004 -5.107 0.000
y -5.107 -36.014 0.000
z 0.000 0.000 -23.244
Traceless
 xyz
x 5.624 -5.107 0.000
y -5.107 -12.389 0.000
z 0.000 0.000 6.765
Polar
3z2-r213.530
x2-y212.009
xy-5.107
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.712 -0.554 0.000
y -0.554 6.135 0.000
z 0.000 0.000 5.534


<r2> (average value of r2) Å2
<r2> 106.101
(<r2>)1/2 10.301