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All results from a given calculation for C2H8N2 (Ethylenediamine)

using model chemistry: PBEPBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-190.280236
Energy at 298.15K-190.290369
Nuclear repulsion energy130.830126
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 PBEPBE/6-31G(2df,p)
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 3388 3353 0.00      
2 Ag 2940 2910 0.00      
3 Ag 1617 1600 0.00      
4 Ag 1426 1411 0.00      
5 Ag 1343 1329 0.00      
6 Ag 1106 1095 0.00      
7 Ag 1026 1016 0.00      
8 Ag 838 830 0.00      
9 Ag 444 439 0.00      
10 Au 3467 3431 0.45      
11 Au 3002 2971 63.21      
12 Au 1360 1346 1.99      
13 Au 1048 1037 0.26      
14 Au 735 728 1.09      
15 Au 272 269 94.16      
16 Au 144 143 0.00      
17 Bg 3468 3432 0.00      
18 Bg 2974 2943 0.00      
19 Bg 1336 1322 0.00      
20 Bg 1263 1250 0.00      
21 Bg 921 912 0.00      
22 Bg 312 309 0.00      
23 Bu 3387 3352 3.48      
24 Bu 2949 2919 85.42      
25 Bu 1615 1599 33.18      
26 Bu 1445 1430 0.41      
27 Bu 1281 1267 25.35      
28 Bu 1075 1064 6.13      
29 Bu 876 867 348.20      
30 Bu 255 252 15.34      

Unscaled Zero Point Vibrational Energy (zpe) 23655.2 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 23411.6 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 PBEPBE/6-31G(2df,p)
ABC
0.86895 0.12334 0.11670

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.397 0.662 0.000
C2 -0.397 -0.662 0.000
N3 -0.397 1.897 0.000
N4 0.397 -1.897 0.000
H5 1.023 -1.885 0.813
H6 1.023 -1.885 -0.813
H7 -1.023 1.885 0.813
H8 -1.023 1.885 -0.813
H9 -1.063 -0.681 -0.884
H10 -1.063 -0.681 0.884
H11 1.063 0.681 -0.884
H12 1.063 0.681 0.884

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10 H11 H12
C11.54351.46842.55872.74552.74552.04272.04272.17202.17201.10711.1071
C21.54352.55871.46842.04272.04272.74552.74551.10711.10712.17202.1720
N31.46842.55873.87614.12054.12051.02571.02572.80562.80562.09582.0958
N42.55871.46843.87611.02571.02574.12054.12052.09582.09582.80562.8056
H52.74552.04274.12051.02571.62514.28914.58672.94612.40973.07642.5674
H62.74552.04274.12051.02571.62514.58674.28912.40972.94612.56743.0764
H72.04272.74551.02574.12054.28914.58671.62513.07642.56742.94612.4097
H82.04272.74551.02574.12054.58674.28911.62512.56743.07642.40972.9461
H92.17201.10712.80562.09582.94612.40973.07642.56741.76782.52573.0829
H102.17201.10712.80562.09582.40972.94612.56743.07641.76783.08292.5257
H111.10712.17202.09582.80563.07642.56742.94612.40972.52573.08291.7678
H121.10712.17202.09582.80562.56743.07642.40972.94613.08292.52571.7678

picture of Ethylenediamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 116.297 C1 C2 H9 108.945
C1 C2 H10 108.945 C1 N3 H7 108.669
C1 N3 H8 108.669 C2 C1 N3 116.297
C2 C1 H11 108.945 C2 C1 H12 108.945
C2 N4 H5 108.669 C2 N4 H6 108.669
N3 C1 H11 108.108 N3 C1 H12 108.108
N4 C2 H9 108.108 N4 C2 H10 108.108
H5 N4 H6 104.791 H7 N3 H8 104.791
H9 C2 H10 105.952 H11 C1 H12 105.952
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.172      
2 C -0.172      
3 N -0.496      
4 N -0.496      
5 H 0.227      
6 H 0.227      
7 H 0.227      
8 H 0.227      
9 H 0.107      
10 H 0.107      
11 H 0.107      
12 H 0.107      


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 -23.793 -4.366 0.000
y -4.366 -34.822 0.000
z 0.000 0.000 -23.405
Traceless
 xyz
x 5.320 -4.366 0.000
y -4.366 -11.223 0.000
z 0.000 0.000 5.903
Polar
3z2-r211.805
x2-y211.029
xy-4.366
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.738 -0.688 0.000
y -0.688 6.348 0.000
z 0.000 0.000 5.599


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