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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-189.167628
Energy at 298.15K 
HF Energy-189.167628
Nuclear repulsion energy117.361004
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 B3PW91/6-31G
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 3754 3595 3.75      
2 A 3627 3474 0.77      
3 A 3175 3040 0.23      
4 A 1784 1709 2.34      
5 A 1701 1629 8.44      
6 A 1364 1307 1.47      
7 A 1298 1243 1.42      
8 A 1021 978 0.99      
9 A 943 903 78.48      
10 A 573 549 29.33      
11 A 458 439 485.74      
12 A 349 334 43.67      
13 A 230 220 30.01      
14 B 3754 3595 11.14      
15 B 3625 3472 17.54      
16 B 3178 3044 68.17      
17 B 1704 1632 110.40      
18 B 1410 1351 8.73      
19 B 1228 1176 184.58      
20 B 1113 1066 5.77      
21 B 817 782 23.72      
22 B 408 391 209.51      
23 B 328 314 6.01      
24 B 173 166 207.94      

Unscaled Zero Point Vibrational Energy (zpe) 19007.8 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 18203.7 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 B3PW91/6-31G
ABC
1.47318 0.13163 0.12207

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.315 0.595 0.050
C2 -0.315 -0.595 0.050
N3 -0.315 1.843 -0.077
N4 0.315 -1.843 -0.077
H5 1.403 0.640 0.063
H6 -1.403 -0.640 0.063
H7 -1.306 1.872 -0.249
H8 1.306 -1.872 -0.249
H9 0.065 2.632 0.421
H10 -0.065 -2.632 0.421

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34691.40372.44201.08902.11612.08512.67572.08473.2702
C21.34692.44201.40372.11611.08902.67572.08513.27022.0847
N31.40372.44203.74022.10172.71521.00684.05731.00644.5094
N42.44201.40373.74022.71522.10174.05731.00684.50941.0064
H51.08902.11612.10172.71523.08432.99222.53342.42543.6041
H62.11611.08902.71522.10173.08432.53342.99223.60412.4254
H72.08512.67571.00684.05732.99222.53344.56531.70494.7191
H82.67572.08514.05731.00682.53342.99224.56534.71911.7049
H92.08473.27021.00644.50942.42543.60411.70494.71915.2647
H103.27022.08474.50941.00643.60412.42544.71911.70495.2647

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.183 C1 C2 H6 120.253
C1 N3 H7 118.846 C1 N3 H9 118.834
C2 C1 N3 125.183 C2 C1 H5 120.253
C2 N4 H8 118.846 C2 N4 H10 118.834
N3 C1 H5 114.353 N4 C2 H6 114.353
H7 N3 H9 115.746 H8 N4 H10 115.746
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.026      
2 C 0.026      
3 N -0.793      
4 N -0.793      
5 H 0.137      
6 H 0.137      
7 H 0.317      
8 H 0.317      
9 H 0.314      
10 H 0.314      


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 1.457 1.457
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.120 -1.998 0.000
y -1.998 -18.841 0.000
z 0.000 0.000 -28.459
Traceless
 xyz
x 3.530 -1.998 0.000
y -1.998 5.448 0.000
z 0.000 0.000 -8.979
Polar
3z2-r2-17.957
x2-y2-1.279
xy-1.998
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.835 0.187 0.000
y 0.187 8.426 0.000
z 0.000 0.000 2.109


<r2> (average value of r2) Å2
<r2> 98.075
(<r2>)1/2 9.903