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All results from a given calculation for C2H8N2 (Ethylenediamine)

using model chemistry: MP2=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 MP2=FULL/6-31G
 hartrees
Energy at 0K-189.593983
Energy at 298.15K-189.604116
HF Energy-189.185008
Nuclear repulsion energy130.004829
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 MP2=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 3540 3363 0.00      
2 Ag 3050 2898 0.00      
3 Ag 1747 1660 0.00      
4 Ag 1549 1472 0.00      
5 Ag 1436 1365 0.00      
6 Ag 1125 1069 0.00      
7 Ag 1050 998 0.00      
8 Ag 699 664 0.00      
9 Ag 471 447 0.00      
10 Au 3662 3479 0.82      
11 Au 3121 2965 79.33      
12 Au 1418 1347 0.40      
13 Au 1088 1034 0.13      
14 Au 764 726 0.50      
15 Au 271 258 133.21      
16 Au 155 147 0.05      
17 Bg 3662 3479 0.00      
18 Bg 3094 2940 0.00      
19 Bg 1397 1328 0.00      
20 Bg 1345 1278 0.00      
21 Bg 956 909 0.00      
22 Bg 298 283 0.00      
23 Bu 3539 3363 0.53      
24 Bu 3058 2905 87.48      
25 Bu 1748 1660 55.46      
26 Bu 1568 1489 1.24      
27 Bu 1375 1306 10.35      
28 Bu 1095 1040 18.66      
29 Bu 716 680 655.04      
30 Bu 275 262 23.87      

Unscaled Zero Point Vibrational Energy (zpe) 24635.4 cm-1
Scaled (by 0.9501) Zero Point Vibrational Energy (zpe) 23406.1 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 MP2=FULL/6-31G
ABC
0.87276 0.12064 0.11463

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.404 0.663 0.000
C2 -0.404 -0.663 0.000
N3 -0.404 1.901 0.000
N4 0.404 -1.901 0.000
H5 0.961 -2.034 0.840
H6 0.961 -2.034 -0.840
H7 -0.961 2.034 0.840
H8 -0.961 2.034 -0.840
H9 -1.060 -0.684 -0.884
H10 -1.060 -0.684 0.884
H11 1.060 0.684 -0.884
H12 1.060 0.684 0.884

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10 H11 H12
C11.55351.47832.56402.87892.87892.10872.10872.17762.17761.10081.1008
C21.55352.56401.47832.10872.10872.87892.87891.10081.10082.17762.1776
N31.47832.56403.88674.24834.24831.01641.01642.80982.80982.09882.0988
N42.56401.47833.88671.01641.01644.24834.24832.09882.09882.80982.8098
H52.87892.10874.24831.01641.68054.49804.80172.97922.43013.22022.7202
H62.87892.10874.24831.01641.68054.80174.49802.43012.97922.72023.2202
H72.10872.87891.01644.24834.49804.80171.68053.22022.72022.97922.4301
H82.10872.87891.01644.24834.80174.49801.68052.72023.22022.43012.9792
H92.17761.10082.80982.09882.97922.43013.22022.72021.76782.52373.0813
H102.17761.10082.80982.09882.43012.97922.72023.22021.76783.08132.5237
H111.10082.17762.09882.80983.22022.72022.97922.43012.52373.08131.7678
H121.10082.17762.09882.80982.72023.22022.43012.97923.08132.52371.7678

picture of Ethylenediamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 115.473 C1 C2 H9 109.062
C1 C2 H10 109.062 C1 N3 H7 114.123
C1 N3 H8 114.123 C2 C1 N3 115.473
C2 C1 H11 109.062 C2 C1 H12 109.062
C2 N4 H5 114.123 C2 N4 H6 114.123
N3 C1 H11 108.040 N3 C1 H12 108.040
N4 C2 H9 108.040 N4 C2 H10 108.040
H5 N4 H6 111.514 H7 N3 H8 111.514
H9 C2 H10 106.825 H11 C1 H12 106.825
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability