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All results from a given calculation for C2H8N2 (Ethylenediamine)

using model chemistry: MP3=FULL/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 MP3=FULL/6-31G*
 hartrees
Energy at 0K-189.907980
Energy at 298.15K-189.918323
HF Energy-189.265068
Nuclear repulsion energy131.609584
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 MP3=FULL/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 3518 3301 0.00      
2 Ag 3085 2895 0.00      
3 Ag 1738 1631 0.00      
4 Ag 1548 1453 0.00      
5 Ag 1457 1367 0.00      
6 Ag 1167 1095 0.00      
7 Ag 1120 1051 0.00      
8 Ag 904 848 0.00      
9 Ag 475 445 0.00      
10 Au 3605 3382 0.11      
11 Au 3146 2952 67.74      
12 Au 1441 1352 2.13      
13 Au 1105 1037 0.45      
14 Au 776 728 0.29      
15 Au 284 266 130.64      
16 Au 155 146 0.13      
17 Bg 3605 3383 0.00      
18 Bg 3121 2928 0.00      
19 Bg 1415 1328 0.00      
20 Bg 1349 1266 0.00      
21 Bg 975 915 0.00      
22 Bg 317 298 0.00      
23 Bu 3518 3301 0.89      
24 Bu 3091 2901 76.36      
25 Bu 1736 1629 55.94      
26 Bu 1565 1468 1.15      
27 Bu 1371 1286 26.60      
28 Bu 1133 1063 6.36      
29 Bu 950 891 422.00      
30 Bu 283 266 21.31      

Unscaled Zero Point Vibrational Energy (zpe) 24976.5 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 23435.5 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 MP3=FULL/6-31G*
ABC
0.87577 0.12507 0.11831

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.399 0.656 0.000
C2 -0.399 -0.656 0.000
N3 -0.399 1.882 0.000
N4 0.399 -1.882 0.000
H5 1.005 -1.904 0.816
H6 1.005 -1.904 -0.816
H7 -1.005 1.904 0.816
H8 -1.005 1.904 -0.816
H9 -1.056 -0.677 -0.879
H10 -1.056 -0.677 0.879
H11 1.056 0.677 -0.879
H12 1.056 0.677 0.879

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10 H11 H12
C11.53581.46202.53822.75542.75542.04812.04812.15962.15961.09731.0973
C21.53582.53821.46202.04812.04812.75542.75541.09731.09732.15962.1596
N31.46202.53823.84734.11994.11991.01721.01722.78392.78392.08312.0831
N42.53821.46203.84731.01721.01724.11994.11992.08312.08312.78392.7839
H52.75542.04814.11991.01721.63274.30684.60592.93722.39963.08832.5824
H62.75542.04814.11991.01721.63274.60594.30682.39962.93722.58243.0883
H72.04812.75541.01724.11994.30684.60591.63273.08832.58242.93722.3996
H82.04812.75541.01724.11994.60594.30681.63272.58243.08832.39962.9372
H92.15961.09732.78392.08312.93722.39963.08832.58241.75722.50803.0623
H102.15961.09732.78392.08312.39962.93722.58243.08831.75723.06232.5080
H111.09732.15962.08312.78393.08832.58242.93722.39962.50803.06231.7572
H121.09732.15962.08312.78392.58243.08832.39962.93723.06232.50801.7572

picture of Ethylenediamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 115.687 C1 C2 H9 109.069
C1 C2 H10 109.069 C1 N3 H7 110.101
C1 N3 H8 110.101 C2 C1 N3 115.687
C2 C1 H11 109.069 C2 C1 H12 109.069
C2 N4 H5 110.101 C2 N4 H6 110.101
N3 C1 H11 108.118 N3 C1 H12 108.118
N4 C2 H9 108.118 N4 C2 H10 108.118
H5 N4 H6 106.747 H7 N3 H8 106.747
H9 C2 H10 106.384 H11 C1 H12 106.384
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability