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All results from a given calculation for C2H8N2 (Ethylenediamine)

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-190.278751
Energy at 298.15K-190.289038
HF Energy-190.084856
Nuclear repulsion energy131.425547
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 B2PLYP/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 3486 3309 0.00      
2 Ag 3061 2906 0.00      
3 Ag 1720 1633 0.00      
4 Ag 1530 1453 0.00      
5 Ag 1435 1362 0.00      
6 Ag 1143 1085 0.00      
7 Ag 1083 1028 0.00      
8 Ag 880 835 0.00      
9 Ag 464 440 0.00      
10 Au 3575 3393 0.59      
11 Au 3121 2963 76.71      
12 Au 1429 1356 2.07      
13 Au 1096 1041 0.44      
14 Au 771 732 0.37      
15 Au 284 270 123.84      
16 Au 152 144 0.07      
17 Bg 3576 3394 0.00      
18 Bg 3095 2938 0.00      
19 Bg 1405 1333 0.00      
20 Bg 1334 1266 0.00      
21 Bg 965 916 0.00      
22 Bg 320 304 0.00      
23 Bu 3486 3309 2.24      
24 Bu 3068 2912 87.65      
25 Bu 1718 1631 47.02      
26 Bu 1548 1470 0.45      
27 Bu 1360 1291 29.40      
28 Bu 1107 1051 7.40      
29 Bu 923 876 422.49      
30 Bu 274 260 20.20      

Unscaled Zero Point Vibrational Energy (zpe) 24703.9 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 23449.0 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 B2PLYP/6-31G*
ABC
0.87740 0.12434 0.11768

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.398 0.657 0.000
C2 -0.398 -0.657 0.000
N3 -0.398 1.887 0.000
N4 0.398 -1.887 0.000
H5 1.011 -1.895 0.813
H6 1.011 -1.895 -0.813
H7 -1.011 1.895 0.813
H8 -1.011 1.895 -0.813
H9 -1.055 -0.681 -0.878
H10 -1.055 -0.681 0.878
H11 1.055 0.681 -0.878
H12 1.055 0.681 0.878

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10 H11 H12
C11.53661.46432.54412.74792.74792.04392.04392.16142.16141.09681.0968
C21.53662.54411.46432.04392.04392.74792.74791.09681.09682.16142.1614
N31.46432.54413.85644.11674.11671.01831.01832.79212.79212.08192.0819
N42.54411.46433.85641.01831.01834.11674.11672.08192.08192.79212.7921
H52.74792.04394.11671.01831.62514.29594.59302.93262.39723.08152.5772
H62.74792.04394.11671.01831.62514.59304.29592.39722.93262.57723.0815
H72.04392.74791.01834.11674.29594.59301.62513.08152.57722.93262.3972
H82.04392.74791.01834.11674.59304.29591.62512.57723.08152.39722.9326
H92.16141.09682.79212.08192.93262.39723.08152.57721.75592.51103.0640
H102.16141.09682.79212.08192.39722.93262.57723.08151.75593.06402.5110
H111.09682.16142.08192.79213.08152.57722.93262.39722.51103.06401.7559
H121.09682.16142.08192.79212.57723.08152.39722.93263.06402.51101.7559

picture of Ethylenediamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 115.919 C1 C2 H9 109.182
C1 C2 H10 109.182 C1 N3 H7 109.518
C1 N3 H8 109.518 C2 C1 N3 115.919
C2 C1 H11 109.182 C2 C1 H12 109.182
C2 N4 H5 109.518 C2 N4 H6 109.518
N3 C1 H11 107.893 N3 C1 H12 107.893
N4 C2 H9 107.893 N4 C2 H10 107.893
H5 N4 H6 105.879 H7 N3 H8 105.879
H9 C2 H10 106.351 H11 C1 H12 106.351
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.149      
2 C -0.149      
3 N -0.757      
4 N -0.757      
5 H 0.309      
6 H 0.309      
7 H 0.309      
8 H 0.309      
9 H 0.144      
10 H 0.144      
11 H 0.144      
12 H 0.144      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.169 -0.711 0.000
y -0.711 5.554 0.000
z 0.000 0.000 5.235


<r2> (average value of r2) Å2
<r2> 106.987
(<r2>)1/2 10.343