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All results from a given calculation for C2H8N2 (Ethylenediamine)

using model chemistry: BLYP/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 BLYP/6-311G*
 hartrees
Energy at 0K-190.464092
Energy at 298.15K-190.474193
Nuclear repulsion energy130.016991
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 BLYP/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 3350 3341 0.00      
2 Ag 2928 2921 0.00      
3 Ag 1673 1669 0.00      
4 Ag 1452 1449 0.00      
5 Ag 1356 1353 0.00      
6 Ag 1078 1075 0.00      
7 Ag 985 983 0.00      
8 Ag 823 821 0.00      
9 Ag 435 434 0.00      
10 Au 3423 3415 9.40      
11 Au 2979 2972 95.75      
12 Au 1377 1374 3.82      
13 Au 1064 1061 0.09      
14 Au 739 737 0.41      
15 Au 270 270 108.17      
16 Au 140 140 0.18      
17 Bg 3424 3415 0.00      
18 Bg 2950 2942 0.00      
19 Bg 1353 1350 0.00      
20 Bg 1278 1275 0.00      
21 Bg 928 926 0.00      
22 Bg 309 308 0.00      
23 Bu 3349 3341 16.81      
24 Bu 2937 2929 109.47      
25 Bu 1672 1668 52.69      
26 Bu 1473 1470 1.39      
27 Bu 1303 1300 21.58      
28 Bu 1035 1033 7.66      
29 Bu 864 862 432.90      
30 Bu 257 257 18.96      

Unscaled Zero Point Vibrational Energy (zpe) 23602.4 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 23543.4 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 BLYP/6-311G*
ABC
0.86807 0.12090 0.11454

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.399 0.668 0.000
C2 -0.399 -0.668 0.000
N3 -0.399 1.914 0.000
N4 0.399 -1.914 0.000
H5 1.016 -1.927 0.819
H6 1.016 -1.927 -0.819
H7 -1.016 1.927 0.819
H8 -1.016 1.927 -0.819
H9 -1.062 -0.692 -0.882
H10 -1.062 -0.692 0.882
H11 1.062 0.692 -0.882
H12 1.062 0.692 0.882

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10 H11 H12
C11.55551.47972.58162.78992.78992.06372.06372.18222.18221.10381.1038
C21.55552.58161.47972.06372.06372.78992.78991.10381.10382.18222.1822
N31.47972.58163.91014.17434.17431.02551.02552.83032.83032.09862.0986
N42.58161.47973.91011.02551.02554.17434.17432.09862.09862.83032.8303
H52.78992.06374.17431.02551.63724.35714.65452.95572.41823.12332.6205
H62.78992.06374.17431.02551.63724.65454.35712.41822.95572.62053.1233
H72.06372.78991.02554.17434.35714.65451.63723.12332.62052.95572.4182
H82.06372.78991.02554.17434.65454.35711.63722.62053.12332.41822.9557
H92.18221.10382.83032.09862.95572.41823.12332.62051.76432.53553.0889
H102.18221.10382.83032.09862.41822.95572.62053.12331.76433.08892.5355
H111.10382.18222.09862.83033.12332.62052.95572.41822.53553.08891.7643
H121.10382.18222.09862.83032.62053.12332.41822.95573.08892.53551.7643

picture of Ethylenediamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 116.527 C1 C2 H9 109.104
C1 C2 H10 109.104 C1 N3 H7 109.592
C1 N3 H8 109.592 C2 C1 N3 116.527
C2 C1 H11 109.104 C2 C1 H12 109.104
C2 N4 H5 109.592 C2 N4 H6 109.592
N3 C1 H11 107.757 N3 C1 H12 107.757
N4 C2 H9 107.757 N4 C2 H10 107.757
H5 N4 H6 105.919 H7 N3 H8 105.919
H9 C2 H10 106.097 H11 C1 H12 106.097
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.273      
2 C -0.273      
3 N -0.674      
4 N -0.674      
5 H 0.292      
6 H 0.292      
7 H 0.292      
8 H 0.292      
9 H 0.181      
10 H 0.181      
11 H 0.181      
12 H 0.181      


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 -24.567 -5.066 0.000
y -5.066 -36.444 0.000
z 0.000 0.000 -23.846
Traceless
 xyz
x 5.578 -5.066 0.000
y -5.066 -12.237 0.000
z 0.000 0.000 6.659
Polar
3z2-r213.319
x2-y211.876
xy-5.066
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.024 -0.595 0.000
y -0.595 6.647 0.000
z 0.000 0.000 5.819


<r2> (average value of r2) Å2
<r2> 109.643
(<r2>)1/2 10.471