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All results from a given calculation for C2H8N2 (Ethylenediamine)

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-189.356942
Energy at 298.15K-189.367338
HF Energy-189.356942
Nuclear repulsion energy132.666948
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 HF/Def2TZVPP
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 3725 3377 0.00      
2 Ag 3154 2858 0.00      
3 Ag 1795 1627 0.00      
4 Ag 1609 1458 0.00      
5 Ag 1536 1392 0.00      
6 Ag 1186 1075 0.00      
7 Ag 1139 1032 0.00      
8 Ag 887 804 0.00      
9 Ag 492 446 0.00      
10 Au 3803 3447 3.25      
11 Au 3203 2903 101.95      
12 Au 1504 1363 0.25      
13 Au 1145 1038 0.32      
14 Au 812 736 0.19      
15 Au 265 240 101.67      
16 Au 155 141 0.31      
17 Bg 3803 3447 0.00      
18 Bg 3170 2874 0.00      
19 Bg 1480 1342 0.00      
20 Bg 1405 1274 0.00      
21 Bg 1010 915 0.00      
22 Bg 293 265 0.00      
23 Bu 3725 3376 1.38      
24 Bu 3159 2863 110.95      
25 Bu 1794 1626 55.70      
26 Bu 1624 1472 1.13      
27 Bu 1446 1311 27.16      
28 Bu 1152 1044 38.45      
29 Bu 925 839 404.17      
30 Bu 302 274 18.42      

Unscaled Zero Point Vibrational Energy (zpe) 25849.0 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 23429.5 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 HF/Def2TZVPP
ABC
0.89293 0.12655 0.11974

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.399 0.652 0.000
C2 -0.399 -0.652 0.000
N3 -0.399 1.866 0.000
N4 0.399 -1.866 0.000
H5 0.990 -1.913 0.804
H6 0.990 -1.913 -0.804
H7 -0.990 1.913 0.804
H8 -0.990 1.913 -0.804
H9 -1.049 -0.674 -0.869
H10 -1.049 -0.674 0.869
H11 1.049 0.674 -0.869
H12 1.049 0.674 0.869

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10 H11 H12
C11.52901.45232.51832.75242.75242.04042.04042.14682.14681.08551.0855
C21.52902.51831.45232.04042.04042.75242.75241.08551.08552.14682.1468
N31.45232.51833.81634.10554.10550.99860.99862.76182.76182.06702.0670
N42.51831.45233.81630.99860.99864.10554.10552.06702.06702.76182.7618
H52.75242.04044.10550.99861.60734.30784.59792.91372.38663.08102.5882
H62.75242.04044.10550.99861.60734.59794.30782.38662.91372.58823.0810
H72.04042.75240.99864.10554.30784.59791.60733.08102.58822.91372.3866
H82.04042.75240.99864.10554.59794.30781.60732.58823.08102.38662.9137
H92.14681.08552.76182.06702.91372.38663.08102.58821.73812.49313.0391
H102.14681.08552.76182.06702.38662.91372.58823.08101.73813.03912.4931
H111.08552.14682.06702.76183.08102.58822.91372.38662.49313.03911.7381
H121.08552.14682.06702.76182.58823.08102.38662.91373.03912.49311.7381

picture of Ethylenediamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 115.249 C1 C2 H9 109.219
C1 C2 H10 109.219 C1 N3 H7 111.366
C1 N3 H8 111.366 C2 C1 N3 115.249
C2 C1 H11 109.219 C2 C1 H12 109.219
C2 N4 H5 111.366 C2 N4 H6 111.366
N3 C1 H11 108.205 N3 C1 H12 108.205
N4 C2 H9 108.205 N4 C2 H10 108.205
H5 N4 H6 107.179 H7 N3 H8 107.179
H9 C2 H10 106.376 H11 C1 H12 106.376
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.093      
2 C 0.093      
3 N -0.396      
4 N -0.396      
5 H 0.128      
6 H 0.128      
7 H 0.128      
8 H 0.128      
9 H 0.024      
10 H 0.024      
11 H 0.024      
12 H 0.024      


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 -24.258 -4.718 0.000
y -4.718 -35.742 0.000
z 0.000 0.000 -23.255
Traceless
 xyz
x 5.241 -4.718 0.000
y -4.718 -11.985 0.000
z 0.000 0.000 6.745
Polar
3z2-r213.489
x2-y211.484
xy-4.718
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.828 -0.462 0.000
y -0.462 6.442 0.000
z 0.000 0.000 5.572


<r2> (average value of r2) Å2
<r2> 105.624
(<r2>)1/2 10.277