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All results from a given calculation for C2H8N2 (Ethylenediamine)

using model chemistry: HF/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 HF/6-311G**
 hartrees
Energy at 0K-189.327899
Energy at 298.15K-189.338350
Nuclear repulsion energy132.426174
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 HF/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 3717 3377 0.00      
2 Ag 3156 2867 0.00      
3 Ag 1801 1636 0.00      
4 Ag 1609 1462 0.00      
5 Ag 1538 1397 0.00      
6 Ag 1191 1082 0.00      
7 Ag 1145 1040 0.00      
8 Ag 906 824 0.00      
9 Ag 491 446 0.00      
10 Au 3794 3447 0.53      
11 Au 3206 2912 115.31      
12 Au 1509 1371 0.90      
13 Au 1147 1042 0.36      
14 Au 813 739 0.04      
15 Au 278 253 109.01      
16 Au 155 141 0.79      
17 Bg 3795 3447 0.00      
18 Bg 3174 2884 0.00      
19 Bg 1482 1347 0.00      
20 Bg 1405 1277 0.00      
21 Bg 1013 921 0.00      
22 Bg 309 281 0.00      
23 Bu 3717 3377 0.01      
24 Bu 3160 2871 119.88      
25 Bu 1799 1635 59.43      
26 Bu 1624 1476 0.73      
27 Bu 1445 1312 32.19      
28 Bu 1157 1051 33.84      
29 Bu 948 861 425.09      
30 Bu 300 273 18.84      

Unscaled Zero Point Vibrational Energy (zpe) 25892.3 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 23523.1 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 HF/6-311G**
ABC
0.88909 0.12612 0.11932

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.398 0.654 0.000
C2 -0.398 -0.654 0.000
N3 -0.398 1.869 0.000
N4 0.398 -1.869 0.000
H5 0.991 -1.909 0.805
H6 0.991 -1.909 -0.805
H7 -0.991 1.909 0.805
H8 -0.991 1.909 -0.805
H9 -1.050 -0.676 -0.870
H10 -1.050 -0.676 0.870
H11 1.050 0.676 -0.870
H12 1.050 0.676 0.870

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10 H11 H12
C11.53101.45332.52282.75072.75072.03822.03822.15042.15041.08781.0878
C21.53102.52281.45332.03822.03822.75072.75071.08781.08782.15042.1504
N31.45332.52283.82214.10514.10511.00071.00072.76742.76742.06912.0691
N42.52281.45333.82211.00071.00074.10514.10512.06912.06912.76742.7674
H52.75072.03824.10511.00071.61064.30164.59322.91492.38593.08082.5861
H62.75072.03824.10511.00071.61064.59324.30162.38592.91492.58613.0808
H72.03822.75071.00074.10514.30164.59321.61063.08082.58612.91492.3859
H82.03822.75071.00074.10514.59324.30161.61062.58613.08082.38592.9149
H92.15041.08782.76742.06912.91492.38593.08082.58611.74102.49803.0448
H102.15041.08782.76742.06912.38592.91492.58613.08081.74103.04482.4980
H111.08782.15042.06912.76743.08082.58612.91492.38592.49803.04481.7410
H121.08782.15042.06912.76742.58613.08082.38592.91493.04482.49801.7410

picture of Ethylenediamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 115.394 C1 C2 H9 109.221
C1 C2 H10 109.221 C1 N3 H7 110.976
C1 N3 H8 110.976 C2 C1 N3 115.394
C2 C1 H11 109.221 C2 C1 H12 109.221
C2 N4 H5 110.976 C2 N4 H6 110.976
N3 C1 H11 108.162 N3 C1 H12 108.162
N4 C2 H9 108.162 N4 C2 H10 108.162
H5 N4 H6 107.172 H7 N3 H8 107.172
H9 C2 H10 106.296 H11 C1 H12 106.296
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.022      
2 C -0.022      
3 N -0.498      
4 N -0.498      
5 H 0.181      
6 H 0.181      
7 H 0.181      
8 H 0.181      
9 H 0.080      
10 H 0.080      
11 H 0.080      
12 H 0.080      


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 -23.980 -4.842 0.000
y -4.842 -35.845 0.000
z 0.000 0.000 -23.261
Traceless
 xyz
x 5.573 -4.842 0.000
y -4.842 -12.225 0.000
z 0.000 0.000 6.652
Polar
3z2-r213.304
x2-y211.865
xy-4.842
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.378 -0.527 0.000
y -0.527 5.690 0.000
z 0.000 0.000 5.304


<r2> (average value of r2) Å2
<r2> 105.828
(<r2>)1/2 10.287