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All results from a given calculation for C2H8N2 (Ethylenediamine)

using model chemistry: BLYP/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 BLYP/6-31G*
 hartrees
Energy at 0K-190.409913
Energy at 298.15K-190.420059
HF Energy-190.409913
Nuclear repulsion energy129.957934
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/6-31G*
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 3317 3290 0.00      
2 Ag 2938 2914 0.00      
3 Ag 1659 1645 0.00      
4 Ag 1468 1456 0.00      
5 Ag 1372 1360 0.00      
6 Ag 1093 1084 0.00      
7 Ag 999 991 0.00      
8 Ag 842 835 0.00      
9 Ag 439 435 0.00      
10 Au 3399 3372 8.46      
11 Au 2993 2969 84.97      
12 Au 1378 1367 2.41      
13 Au 1064 1055 0.47      
14 Au 746 740 0.60      
15 Au 285 282 112.19      
16 Au 144 143 0.02      
17 Bg 3400 3372 0.00      
18 Bg 2965 2941 0.00      
19 Bg 1356 1345 0.00      
20 Bg 1282 1272 0.00      
21 Bg 932 924 0.00      
22 Bg 323 320 0.00      
23 Bu 3317 3290 12.12      
24 Bu 2946 2922 97.27      
25 Bu 1657 1644 33.17      
26 Bu 1488 1476 0.33      
27 Bu 1310 1300 32.90      
28 Bu 1048 1040 7.60      
29 Bu 885 878 381.79      
30 Bu 258 256 17.90      

Unscaled Zero Point Vibrational Energy (zpe) 23651.4 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 23459.9 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/6-31G*
ABC
0.86309 0.12117 0.11472

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.398 0.670 0.000
C2 -0.398 -0.670 0.000
N3 -0.398 1.914 0.000
N4 0.398 -1.914 0.000
H5 1.010 -1.945 0.822
H6 1.010 -1.945 -0.822
H7 -1.010 1.945 0.822
H8 -1.010 1.945 -0.822
H9 -1.062 -0.691 -0.884
H10 -1.062 -0.691 0.884
H11 1.062 0.691 -0.884
H12 1.062 0.691 0.884

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10 H11 H12
C11.55821.47652.58352.80832.80832.06982.06982.18262.18261.10611.1061
C21.55822.58351.47652.06982.06982.80832.80831.10611.10612.18262.1826
N31.47652.58353.90914.18874.18871.02561.02562.82922.82922.09992.0999
N42.58351.47653.90911.02561.02564.18874.18872.09992.09992.82922.8292
H52.80832.06984.18871.02561.64384.38314.68122.96302.42343.13972.6365
H62.80832.06984.18871.02561.64384.68124.38312.42342.96302.63653.1397
H72.06982.80831.02564.18874.38314.68121.64383.13972.63652.96302.4234
H82.06982.80831.02564.18874.68124.38311.64382.63653.13972.42342.9630
H92.18261.10612.82922.09992.96302.42343.13972.63651.76832.53383.0898
H102.18261.10612.82922.09992.42342.96302.63653.13971.76833.08982.5338
H111.10612.18262.09992.82923.13972.63652.96302.42342.53383.08981.7683
H121.10612.18262.09992.82922.63653.13972.42342.96303.08982.53381.7683

picture of Ethylenediamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 116.684 C1 C2 H9 108.830
C1 C2 H10 108.830 C1 N3 H7 110.330
C1 N3 H8 110.330 C2 C1 N3 116.684
C2 C1 H11 108.830 C2 C1 H12 108.830
C2 N4 H5 110.330 C2 N4 H6 110.330
N3 C1 H11 107.934 N3 C1 H12 107.934
N4 C2 H9 107.934 N4 C2 H10 107.934
H5 N4 H6 106.533 H7 N3 H8 106.533
H9 C2 H10 106.133 H11 C1 H12 106.133
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.132      
2 C -0.132      
3 N -0.653      
4 N -0.653      
5 H 0.275      
6 H 0.275      
7 H 0.275      
8 H 0.275      
9 H 0.118      
10 H 0.118      
11 H 0.118      
12 H 0.118      


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 -23.722 -4.803 0.000
y -4.803 -35.987 0.000
z 0.000 0.000 -23.582
Traceless
 xyz
x 6.063 -4.803 0.000
y -4.803 -12.335 0.000
z 0.000 0.000 6.272
Polar
3z2-r212.543
x2-y212.265
xy-4.803
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.453 -0.781 0.000
y -0.781 6.024 0.000
z 0.000 0.000 5.469


<r2> (average value of r2) Å2
<r2> 109.111
(<r2>)1/2 10.446