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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: HSEh1PBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HSEh1PBE/6-31G*
 hartrees
Energy at 0K-189.077874
Energy at 298.15K 
HF Energy-189.077874
Nuclear repulsion energy117.676459
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 HSEh1PBE/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 A 3628 3450 0.66      
2 A 3525 3352 1.93      
3 A 3178 3023 0.14      
4 A 1800 1712 0.16      
5 A 1683 1601 28.05      
6 A 1350 1284 0.69      
7 A 1309 1245 0.02      
8 A 1060 1008 0.92      
9 A 949 902 59.49      
10 A 845 803 162.21      
11 A 560 533 1.52      
12 A 341 324 0.01      
13 A 258 245 21.15      
14 B 3627 3449 2.16      
15 B 3523 3350 0.15      
16 B 3180 3024 54.76      
17 B 1692 1610 51.80      
18 B 1412 1343 9.85      
19 B 1216 1156 89.68      
20 B 1143 1087 0.74      
21 B 818 778 205.27      
22 B 766 729 269.00      
23 B 355 337 55.34      
24 B 258 246 99.33      

Unscaled Zero Point Vibrational Energy (zpe) 19238.0 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 18295.3 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 HSEh1PBE/6-31G*
ABC
1.44118 0.13285 0.12355

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.311 0.592 0.037
C2 -0.311 -0.592 0.037
N3 -0.311 1.847 -0.112
N4 0.311 -1.847 -0.112
H5 1.400 0.639 0.038
H6 -1.400 -0.639 0.038
H7 -1.322 1.776 -0.068
H8 1.322 -1.776 -0.068
H9 -0.004 2.515 0.588
H10 0.004 -2.515 0.588

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33831.40872.44441.09032.10832.02002.57762.02463.1709
C21.33832.44441.40872.10831.09032.57762.02003.17092.0246
N31.40872.44443.74682.10082.71821.01463.97501.01514.4295
N42.44441.40873.74682.71822.10083.97501.01464.42951.0151
H51.09032.10832.10082.71823.07832.95272.41832.40743.4927
H62.10831.09032.71822.10083.07832.41832.95273.49272.4074
H72.02002.57761.01463.97502.95272.41834.42871.64774.5392
H82.57762.02003.97501.01462.41832.95274.42874.53921.6477
H92.02463.17091.01514.42952.40743.49271.64774.53925.0303
H103.17092.02464.42951.01513.49272.40744.53921.64775.0303

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.682 C1 C2 H6 120.132
C1 N3 H7 111.910 C1 N3 H9 112.280
C2 C1 N3 125.682 C2 C1 H5 120.132
C2 N4 H8 111.910 C2 N4 H10 112.280
N3 C1 H5 113.814 N4 C2 H6 113.814
H7 N3 H9 108.546 H8 N4 H10 108.546
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.034      
2 C -0.034      
3 N -0.764      
4 N -0.764      
5 H 0.146      
6 H 0.146      
7 H 0.326      
8 H 0.326      
9 H 0.327      
10 H 0.327      


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 2.412 2.412
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.243 -1.885 0.000
y -1.885 -22.579 0.000
z 0.000 0.000 -27.743
Traceless
 xyz
x 4.919 -1.885 0.000
y -1.885 1.414 0.000
z 0.000 0.000 -6.333
Polar
3z2-r2-12.665
x2-y22.337
xy-1.885
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.087 0.111 0.000
y 0.111 8.383 0.000
z 0.000 0.000 2.658


<r2> (average value of r2) Å2
<r2> 97.291
(<r2>)1/2 9.864