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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-34.640602
Energy at 298.15K 
HF Energy-34.640602
Nuclear repulsion energy65.870593
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 B3LYP/CEP-121G
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 3670 3576 0.76      
2 A 3533 3443 0.00      
3 A 3114 3035 0.02      
4 A 1719 1675 0.85      
5 A 1675 1633 13.18      
6 A 1326 1292 0.79      
7 A 1260 1227 1.39      
8 A 997 972 0.07      
9 A 920 896 84.12      
10 A 559 545 64.71      
11 A 488 476 326.32      
12 A 331 322 9.04      
13 A 225 219 34.55      
14 B 3670 3576 1.68      
15 B 3531 3441 3.30      
16 B 3118 3038 83.39      
17 B 1683 1641 100.64      
18 B 1373 1338 5.21      
19 B 1175 1145 183.58      
20 B 1091 1063 7.64      
21 B 791 771 23.21      
22 B 454 442 291.41      
23 B 320 312 5.82      
24 B 179 174 186.99      

Unscaled Zero Point Vibrational Energy (zpe) 18600.2 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 18125.9 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 B3LYP/CEP-121G
ABC
1.42887 0.12838 0.11924

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.321 0.601 0.055
C2 -0.321 -0.601 0.055
N3 -0.321 1.869 -0.089
N4 0.321 -1.869 -0.089
H5 1.412 0.647 0.067
H6 -1.412 -0.647 0.067
H7 -1.322 1.874 -0.243
H8 1.322 -1.874 -0.243
H9 0.030 2.638 0.470
H10 -0.030 -2.638 0.470

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.36241.42872.47471.09192.13512.09942.68662.09883.2839
C21.36242.47471.42872.13511.09192.68662.09943.28392.0988
N31.42872.47473.79342.12572.74731.01284.09091.01304.5511
N42.47471.42873.79342.74732.12574.09091.01284.55111.0130
H51.09192.13512.12572.74733.10573.01202.54202.45653.6098
H62.13511.09192.74732.12573.10572.54203.01203.60982.4565
H72.09942.68661.01284.09093.01202.54204.58671.70824.7472
H82.68662.09944.09091.01282.54203.01204.58674.74721.7082
H92.09883.28391.01304.55112.45653.60981.70824.74725.2758
H103.28392.09884.55111.01303.60982.45654.74721.70825.2758

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 124.889 C1 C2 H6 120.505
C1 N3 H7 117.599 C1 N3 H9 117.522
C2 C1 N3 124.889 C2 C1 H5 120.505
C2 N4 H8 117.599 C2 N4 H10 117.522
N3 C1 H5 114.328 N4 C2 H6 114.328
H7 N3 H9 114.969 H8 N4 H10 114.969
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.085      
2 C -0.085      
3 N -0.570      
4 N -0.570      
5 H 0.108      
6 H 0.108      
7 H 0.273      
8 H 0.273      
9 H 0.274      
10 H 0.274      


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 1.645 1.645
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.583 -2.152 0.000
y -2.152 -20.231 0.000
z 0.000 0.000 -29.268
Traceless
 xyz
x 4.167 -2.152 0.000
y -2.152 4.695 0.000
z 0.000 0.000 -8.861
Polar
3z2-r2-17.723
x2-y2-0.352
xy-2.152
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.470 0.285 0.000
y 0.285 9.185 0.000
z 0.000 0.000 3.464


<r2> (average value of r2) Å2
<r2> 84.211
(<r2>)1/2 9.177