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All results from a given calculation for C2H8N2 (Ethylenediamine)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-190.256896
Energy at 298.15K-190.267045
HF Energy-190.256896
Nuclear repulsion energy130.646205
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 PBEPBEultrafine/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 3360 3304 0.00      
2 Ag 2951 2902 0.00      
3 Ag 1655 1627 0.00      
4 Ag 1455 1431 0.00      
5 Ag 1365 1342 0.00      
6 Ag 1110 1092 0.00      
7 Ag 1032 1015 0.00      
8 Ag 849 835 0.00      
9 Ag 446 439 0.00      
10 Au 3448 3391 3.06      
11 Au 3012 2963 74.03      
12 Au 1375 1352 2.86      
13 Au 1059 1042 0.36      
14 Au 740 728 1.09      
15 Au 278 273 118.94      
16 Au 145 143 0.00      
17 Bg 3449 3392 0.00      
18 Bg 2985 2936 0.00      
19 Bg 1351 1328 0.00      
20 Bg 1277 1256 0.00      
21 Bg 927 912 0.00      
22 Bg 320 315 0.00      
23 Bu 3359 3304 7.46      
24 Bu 2959 2910 92.31      
25 Bu 1653 1626 39.40      
26 Bu 1474 1450 0.72      
27 Bu 1298 1277 27.94      
28 Bu 1079 1061 5.22      
29 Bu 888 873 401.87      
30 Bu 257 253 19.23      

Unscaled Zero Point Vibrational Energy (zpe) 23777.1 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 23384.8 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 PBEPBEultrafine/6-31G*
ABC
0.86880 0.12286 0.11632

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.396 0.663 0.000
C2 -0.396 -0.663 0.000
N3 -0.396 1.900 0.000
N4 0.396 -1.900 0.000
H5 1.022 -1.893 0.816
H6 1.022 -1.893 -0.816
H7 -1.022 1.893 0.816
H8 -1.022 1.893 -0.816
H9 -1.062 -0.686 -0.885
H10 -1.062 -0.686 0.885
H11 1.062 0.686 -0.885
H12 1.062 0.686 0.885

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10 H11 H12
C11.54471.46932.56292.75492.75492.04712.04712.17532.17531.10801.1080
C21.54472.56291.46932.04712.04712.75492.75491.10801.10802.17532.1753
N31.46932.56293.88174.13084.13081.02841.02842.81352.81352.09402.0940
N42.56291.46933.88171.02841.02844.13084.13082.09402.09402.81352.8135
H52.75492.04714.13081.02841.63264.30224.60162.94882.40943.09012.5804
H62.75492.04714.13081.02841.63264.60164.30222.40942.94882.58043.0901
H72.04712.75491.02844.13084.30224.60161.63263.09012.58042.94882.4094
H82.04712.75491.02844.13084.60164.30221.63262.58043.09012.40942.9488
H92.17531.10802.81352.09402.94882.40943.09012.58041.77032.52963.0875
H102.17531.10802.81352.09402.40942.94882.58043.09011.77033.08752.5296
H111.10802.17532.09402.81353.09012.58042.94882.40942.52963.08751.7703
H121.10802.17532.09402.81352.58043.09012.40942.94883.08752.52961.7703

picture of Ethylenediamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 116.470 C1 C2 H9 109.063
C1 C2 H10 109.063 C1 N3 H7 108.806
C1 N3 H8 108.806 C2 C1 N3 116.470
C2 C1 H11 109.063 C2 C1 H12 109.063
C2 N4 H5 108.806 C2 N4 H6 108.806
N3 C1 H11 107.853 N3 C1 H12 107.853
N4 C2 H9 107.853 N4 C2 H10 107.853
H5 N4 H6 105.074 H7 N3 H8 105.074
H9 C2 H10 106.044 H11 C1 H12 106.044
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.201      
2 C -0.201      
3 N -0.683      
4 N -0.683      
5 H 0.295      
6 H 0.295      
7 H 0.295      
8 H 0.295      
9 H 0.147      
10 H 0.147      
11 H 0.147      
12 H 0.147      


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 -23.558 -4.916 0.000
y -4.916 -35.942 0.000
z 0.000 0.000 -23.379
Traceless
 xyz
x 6.103 -4.916 0.000
y -4.916 -12.474 0.000
z 0.000 0.000 6.371
Polar
3z2-r212.742
x2-y212.384
xy-4.916
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.443 -0.750 0.000
y -0.750 5.997 0.000
z 0.000 0.000 5.433


<r2> (average value of r2) Å2
<r2> 107.859
(<r2>)1/2 10.386