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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: mPW1PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at mPW1PW91/6-311G*
 hartrees
Energy at 0K-189.284102
Energy at 298.15K 
HF Energy-189.284102
Nuclear repulsion energy117.826748
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 mPW1PW91/6-311G*
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 3641 3475 0.35      
2 A 3547 3385 0.99      
3 A 3156 3012 0.02      
4 A 1787 1706 0.01      
5 A 1704 1626 32.02      
6 A 1350 1288 0.61      
7 A 1306 1246 0.13      
8 A 1055 1007 0.68      
9 A 938 896 80.05      
10 A 832 794 162.09      
11 A 558 533 1.87      
12 A 338 323 0.83      
13 A 255 243 21.42      
14 B 3641 3475 0.93      
15 B 3545 3383 0.81      
16 B 3160 3016 60.94      
17 B 1714 1636 65.05      
18 B 1413 1349 7.57      
19 B 1202 1147 100.21      
20 B 1147 1095 0.88      
21 B 817 780 165.81      
22 B 759 725 307.19      
23 B 350 334 45.46      
24 B 250 239 109.91      

Unscaled Zero Point Vibrational Energy (zpe) 19232.5 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 18355.5 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 mPW1PW91/6-311G*
ABC
1.45239 0.13292 0.12367

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.310 0.591 0.040
C2 -0.310 -0.591 0.040
N3 -0.310 1.847 -0.111
N4 0.310 -1.847 -0.111
H5 1.397 0.637 0.039
H6 -1.397 -0.637 0.039
H7 -1.318 1.784 -0.081
H8 1.318 -1.784 -0.081
H9 0.001 2.517 0.579
H10 -0.001 -2.517 0.579

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33491.40792.44251.08842.10252.02162.58352.02353.1699
C21.33492.44251.40792.10251.08842.58352.02163.16992.0235
N31.40792.44253.74482.09762.71511.01053.97921.01104.4287
N42.44251.40793.74482.71512.09763.97921.01054.42871.0110
H51.08842.10252.09762.71513.07062.95002.42532.40373.4914
H62.10251.08842.71512.09763.07062.42532.95003.49142.4037
H72.02162.58351.01053.97922.95002.42534.43651.64614.5468
H82.58352.02163.97921.01052.42532.95004.43654.54681.6461
H92.02353.16991.01104.42872.40373.49141.64614.54685.0341
H103.16992.02354.42871.01103.49142.40374.54681.64615.0341

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.858 C1 C2 H6 120.030
C1 N3 H7 112.377 C1 N3 H9 112.521
C2 C1 N3 125.858 C2 C1 H5 120.030
C2 N4 H8 112.377 C2 N4 H10 112.521
N3 C1 H5 113.720 N4 C2 H6 113.720
H7 N3 H9 109.038 H8 N4 H10 109.038
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.082      
2 C -0.082      
3 N -0.775      
4 N -0.775      
5 H 0.200      
6 H 0.200      
7 H 0.330      
8 H 0.330      
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 2.324 2.324
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.318 -1.880 0.000
y -1.880 -22.537 0.000
z 0.000 0.000 -28.339
Traceless
 xyz
x 5.120 -1.880 0.000
y -1.880 1.792 0.000
z 0.000 0.000 -6.911
Polar
3z2-r2-13.822
x2-y22.219
xy-1.880
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.297 0.180 0.000
y 0.180 8.627 0.000
z 0.000 0.000 3.269


<r2> (average value of r2) Å2
<r2> 97.355
(<r2>)1/2 9.867