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All results from a given calculation for C2H8N2 (Ethylenediamine)

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-190.392270
Energy at 298.15K-190.402474
HF Energy-190.392270
Nuclear repulsion energy 
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 B97D3/6-31G*
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 3368 3302 0.00      
2 Ag 2959 2901 0.00      
3 Ag 1677 1645 0.00      
4 Ag 1478 1449 0.00      
5 Ag 1387 1360 0.00      
6 Ag 1110 1089 0.00      
7 Ag 1025 1005 0.00      
8 Ag 858 842 0.00      
9 Ag 450 441 0.00      
10 Au 3458 3391 5.08      
11 Au 3020 2961 92.97      
12 Au 1395 1368 2.64      
13 Au 1077 1056 0.45      
14 Au 752 737 0.60      
15 Au 289 283 118.75      
16 Au 145 143 0.12      
17 Bg 3459 3391 0.00      
18 Bg 2992 2933 0.00      
19 Bg 1370 1343 0.00      
20 Bg 1297 1271 0.00      
21 Bg 944 925 0.00      
22 Bg 325 319 0.00      
23 Bu 3368 3302 9.60      
24 Bu 2967 2909 109.46      
25 Bu 1676 1643 38.56      
26 Bu 1497 1467 0.33      
27 Bu 1321 1295 32.60      
28 Bu 1072 1051 6.35      
29 Bu 901 884 400.97      
30 Bu 264 259 18.98      

Unscaled Zero Point Vibrational Energy (zpe) 23949.8 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 23480.4 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 B97D3/6-31G*
ABC
0.86907 0.12313 0.11651

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.398 0.663 0.000
C2 -0.398 -0.663 0.000
N3 -0.398 1.898 0.000
N4 0.398 -1.898 0.000
H5 1.021 -1.888 0.813
H6 1.021 -1.888 -0.813
H7 -1.021 1.888 0.813
H8 -1.021 1.888 -0.813
H9 -1.060 -0.684 -0.883
H10 -1.060 -0.684 0.883
H11 1.060 0.684 -0.883
H12 1.060 0.684 0.883

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10 H11 H12
C11.54601.47022.56082.74842.74842.04392.04392.17272.17271.10401.1040
C21.54602.56081.47022.04392.04392.74842.74841.10401.10402.17272.1727
N31.47022.56083.87924.12444.12441.02441.02442.80842.80842.09322.0932
N42.56081.47023.87921.02441.02444.12444.12442.09322.09322.80842.8084
H52.74842.04394.12441.02441.62604.29284.59042.94272.40563.08122.5732
H62.74842.04394.12441.02441.62604.59044.29282.40562.94272.57323.0812
H72.04392.74841.02444.12444.29284.59041.62603.08122.57322.94272.4056
H82.04392.74841.02444.12444.59044.29281.62602.57323.08122.40562.9427
H92.17271.10402.80842.09322.94272.40563.08122.57321.76652.52363.0805
H102.17271.10402.80842.09322.40562.94272.57323.08121.76653.08052.5236
H111.10402.17272.09322.80843.08122.57322.94272.40562.52363.08051.7665
H121.10402.17272.09322.80842.57323.08122.40562.94273.08052.52361.7665

picture of Ethylenediamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 116.315 C1 C2 H9 108.872
C1 C2 H10 108.872 C1 N3 H7 109.862
C1 N3 H8 109.862 C2 C1 N3 116.315
C2 C1 H11 108.872 C2 C1 H12 108.872
C2 N4 H5 109.862 C2 N4 H6 109.862
N3 C1 H11 108.041 N3 C1 H12 108.041
N4 C2 H9 108.041 N4 C2 H10 108.041
H5 N4 H6 106.425 H7 N3 H8 106.425
H9 C2 H10 106.246 H11 C1 H12 106.246
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.170      
2 C -0.170      
3 N -0.691      
4 N -0.691      
5 H 0.292      
6 H 0.292      
7 H 0.292      
8 H 0.292      
9 H 0.138      
10 H 0.138      
11 H 0.138      
12 H 0.138      


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 -23.447 -4.840 0.000
y -4.840 -36.035 0.000
z 0.000 0.000 -23.274
Traceless
 xyz
x 6.207 -4.840 0.000
y -4.840 -12.675 0.000
z 0.000 0.000 6.468
Polar
3z2-r212.935
x2-y212.588
xy-4.840
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.404 -0.741 0.000
y -0.741 5.935 0.000
z 0.000 0.000 5.396


<r2> (average value of r2) Å2
<r2> 107.628
(<r2>)1/2 10.374