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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: HSEh1PBE/STO-3G

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/STO-3G
 hartrees
Energy at 0K-186.680741
Energy at 298.15K 
HF Energy-186.680741
Nuclear repulsion energy115.514916
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/STO-3G
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 3788 3345 0.14      
2 A 3590 3171 6.41      
3 A 3495 3086 0.04      
4 A 1930 1705 0.03      
5 A 1827 1614 15.98      
6 A 1430 1263 1.68      
7 A 1393 1230 0.30      
8 A 1116 986 1.82      
9 A 1037 916 40.54      
10 A 904 798 67.65      
11 A 558 492 0.04      
12 A 335 296 0.72      
13 A 273 241 8.36      
14 B 3787 3345 4.85      
15 B 3587 3168 0.60      
16 B 3486 3078 28.57      
17 B 1833 1619 8.22      
18 B 1505 1329 11.06      
19 B 1292 1141 18.39      
20 B 1213 1071 0.47      
21 B 837 739 313.09      
22 B 818 723 152.82      
23 B 370 327 67.74      
24 B 279 246 41.35      

Unscaled Zero Point Vibrational Energy (zpe) 20341.3 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 17963.4 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/STO-3G
ABC
1.37216 0.12893 0.11980

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.322 0.590 0.025
C2 -0.322 -0.590 0.025
N3 -0.322 1.882 -0.127
N4 0.322 -1.882 -0.127
H5 1.418 0.636 0.016
H6 -1.418 -0.636 0.016
H7 -1.334 1.776 0.137
H8 1.334 -1.776 0.137
H9 0.084 2.541 0.586
H10 -0.084 -2.541 0.586

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34341.45162.47581.09662.12772.03972.57502.04403.2058
C21.34342.47581.45162.12771.09662.57502.03973.20582.0440
N31.45162.47583.81792.14432.74931.05114.02331.05244.4856
N42.47581.45163.81792.74932.14434.02331.05114.48561.0524
H51.09662.12772.14432.74933.10722.98042.41602.39383.5594
H62.12771.09662.74932.14433.10722.41602.98043.55942.3938
H72.03972.57501.05114.02332.98042.41604.44151.67234.5158
H82.57502.03974.02331.05112.41602.98044.44154.51581.6723
H92.04403.20581.05244.48562.39383.55941.67234.51585.0838
H103.20582.04404.48561.05243.55942.39384.51581.67235.0838

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 124.661 C1 C2 H6 121.056
C1 N3 H7 108.111 C1 N3 H9 108.376
C2 C1 N3 124.661 C2 C1 H5 121.056
C2 N4 H8 108.111 C2 N4 H10 108.376
N3 C1 H5 113.869 N4 C2 H6 113.869
H7 N3 H9 105.308 H8 N4 H10 105.308
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.052      
2 C -0.052      
3 N -0.365      
4 N -0.365      
5 H 0.072      
6 H 0.072      
7 H 0.172      
8 H 0.172      
9 H 0.172      
10 H 0.172      


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 2.843 2.843
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.684 -0.959 0.000
y -0.959 -22.271 0.000
z 0.000 0.000 -24.961
Traceless
 xyz
x 3.932 -0.959 0.000
y -0.959 0.052 0.000
z 0.000 0.000 -3.984
Polar
3z2-r2-7.968
x2-y22.587
xy-0.959
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.148 0.077 0.000
y 0.077 5.957 0.000
z 0.000 0.000 0.911


<r2> (average value of r2) Å2
<r2> 98.935
(<r2>)1/2 9.947