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All results from a given calculation for C2H8N2 (Ethylenediamine)

using model chemistry: HSEh1PBE/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at HSEh1PBE/6-31+G**
 hartrees
Energy at 0K-190.327638
Energy at 298.15K-190.337788
HF Energy-190.327638
Nuclear repulsion energy131.739849
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 HSEh1PBE/6-31+G**
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 3547 3386 0.00      
2 Ag 3040 2902 0.00      
3 Ag 1674 1599 0.00      
4 Ag 1481 1414 0.00      
5 Ag 1404 1341 0.00      
6 Ag 1133 1082 0.00      
7 Ag 1066 1018 0.00      
8 Ag 804 767 0.00      
9 Ag 464 443 0.00      
10 Au 3642 3477 4.27      
11 Au 3104 2964 69.91      
12 Au 1396 1333 0.87      
13 Au 1070 1022 0.25      
14 Au 755 721 0.43      
15 Au 257 245 120.53      
16 Au 148 141 0.09      
17 Bg 3642 3478 0.00      
18 Bg 3076 2937 0.00      
19 Bg 1372 1310 0.00      
20 Bg 1301 1242 0.00      
21 Bg 942 899 0.00      
22 Bg 289 276 0.00      
23 Bu 3546 3386 0.91      
24 Bu 3047 2910 92.70      
25 Bu 1674 1598 68.36      
26 Bu 1498 1430 1.67      
27 Bu 1329 1269 18.16      
28 Bu 1113 1062 33.07      
29 Bu 831 794 428.58      
30 Bu 272 260 22.62      

Unscaled Zero Point Vibrational Energy (zpe) 24456.7 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 23351.3 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 HSEh1PBE/6-31+G**
ABC
0.88385 0.12487 0.11832

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31+G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.396 0.657 0.000
C2 -0.396 -0.657 0.000
N3 -0.396 1.877 0.000
N4 0.396 -1.877 0.000
H5 0.994 -1.927 0.818
H6 0.994 -1.927 -0.818
H7 -0.994 1.927 0.818
H8 -0.994 1.927 -0.818
H9 -1.056 -0.679 -0.877
H10 -1.056 -0.679 0.877
H11 1.056 0.679 -0.877
H12 1.056 0.679 0.877

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10 H11 H12
C11.53381.45392.53412.77602.77602.05242.05242.15892.15891.09841.0984
C21.53382.53411.45392.05242.05242.77602.77601.09841.09842.15892.1589
N31.45392.53413.83644.13184.13181.01441.01442.78152.78152.07692.0769
N42.53411.45393.83641.01441.01444.13184.13182.07692.07692.78152.7815
H52.77602.05244.13181.01441.63554.33694.63512.93842.40113.10932.6074
H62.77602.05244.13181.01441.63554.63514.33692.40112.93842.60743.1093
H72.05242.77601.01444.13184.33694.63511.63553.10932.60742.93842.4011
H82.05242.77601.01444.13184.63514.33691.63552.60743.10932.40112.9384
H92.15891.09842.78152.07692.93842.40113.10932.60741.75432.51093.0630
H102.15891.09842.78152.07692.40112.93842.60743.10931.75433.06302.5109
H111.09842.15892.07692.78153.10932.60742.93842.40112.51093.06301.7543
H121.09842.15892.07692.78152.60743.10932.40112.93843.06302.51091.7543

picture of Ethylenediamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 115.994 C1 C2 H9 109.086
C1 C2 H10 109.086 C1 N3 H7 111.254
C1 N3 H8 111.254 C2 C1 N3 115.994
C2 C1 H11 109.086 C2 C1 H12 109.086
C2 N4 H5 111.254 C2 N4 H6 111.254
N3 C1 H11 108.114 N3 C1 H12 108.114
N4 C2 H9 108.114 N4 C2 H10 108.114
H5 N4 H6 107.446 H7 N3 H8 107.446
H9 C2 H10 105.986 H11 C1 H12 105.986
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.277      
2 C -0.277      
3 N -0.630      
4 N -0.630      
5 H 0.297      
6 H 0.297      
7 H 0.297      
8 H 0.297      
9 H 0.157      
10 H 0.157      
11 H 0.157      
12 H 0.157      


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 -24.571 -5.260 0.000
y -5.260 -36.841 0.000
z 0.000 0.000 -23.404
Traceless
 xyz
x 5.552 -5.260 0.000
y -5.260 -12.854 0.000
z 0.000 0.000 7.303
Polar
3z2-r214.605
x2-y212.271
xy-5.260
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.378 -0.298 0.000
y -0.298 7.206 0.000
z 0.000 0.000 5.733


<r2> (average value of r2) Å2
<r2> 107.096
(<r2>)1/2 10.349