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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B1B95/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B1B95/daug-cc-pVTZ
 hartrees
Energy at 0K-189.278435
Energy at 298.15K 
HF Energy-189.278435
Nuclear repulsion energy118.219915
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 B1B95/daug-cc-pVTZ
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 3645 3645 2.39      
2 A 3551 3551 0.22      
3 A 3163 3163 0.06      
4 A 1775 1775 0.58      
5 A 1642 1642 17.93      
6 A 1335 1335 0.41      
7 A 1285 1285 0.01      
8 A 1034 1034 0.08      
9 A 940 940 65.88      
10 A 769 769 136.43      
11 A 551 551 2.63      
12 A 329 329 4.23      
13 A 241 241 14.55      
14 B 3644 3644 10.42      
15 B 3549 3549 4.93      
16 B 3167 3167 45.34      
17 B 1649 1649 55.24      
18 B 1390 1390 12.02      
19 B 1189 1189 136.63      
20 B 1120 1120 1.35      
21 B 827 827 47.65      
22 B 712 712 298.10      
23 B 341 341 37.11      
24 B 242 242 92.63      

Unscaled Zero Point Vibrational Energy (zpe) 19046.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19046.1 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 B1B95/daug-cc-pVTZ
ABC
1.46462 0.13401 0.12447

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/daug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.311 0.587 0.034
C2 -0.311 -0.587 0.034
N3 -0.311 1.838 -0.106
N4 0.311 -1.838 -0.106
H5 1.394 0.628 0.035
H6 -1.394 -0.628 0.035
H7 -1.316 1.787 -0.048
H8 1.316 -1.787 -0.048
H9 0.029 2.525 0.548
H10 -0.029 -2.525 0.548

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.32901.40402.42961.08342.09362.02292.57952.02473.1729
C21.32902.42961.40402.09361.08342.57952.02293.17292.0247
N31.40402.42963.72882.09512.69741.00753.97401.00754.4212
N42.42961.40403.72882.69742.09513.97401.00754.42121.0075
H51.08342.09362.09512.69743.05742.94782.41822.39243.4973
H62.09361.08342.69742.09513.05742.41822.94783.49732.3924
H72.02292.57951.00753.97402.94782.41824.43831.64584.5395
H82.57952.02293.97401.00752.41822.94784.43834.53951.6458
H92.02473.17291.00754.42122.39243.49731.64584.53955.0506
H103.17292.02474.42121.00753.49732.39244.53951.64585.0506

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.461 C1 C2 H6 120.074
C1 N3 H7 113.005 C1 N3 H9 113.170
C2 C1 N3 125.461 C2 C1 H5 120.074
C2 N4 H8 113.005 C2 N4 H10 113.170
N3 C1 H5 114.142 N4 C2 H6 114.142
H7 N3 H9 109.521 H8 N4 H10 109.521
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.482      
2 C -0.482      
3 N -0.532      
4 N -0.532      
5 H 0.745      
6 H 0.745      
7 H 0.066      
8 H 0.066      
9 H 0.204      
10 H 0.204      


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 1.979 1.979
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.920 -1.293 0.000
y -1.293 -23.108 0.000
z 0.000 0.000 -28.620
Traceless
 xyz
x 4.944 -1.293 0.000
y -1.293 1.661 0.000
z 0.000 0.000 -6.606
Polar
3z2-r2-13.212
x2-y22.189
xy-1.293
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.283 -0.032 0.000
y -0.032 10.081 0.000
z 0.000 0.000 5.216


<r2> (average value of r2) Å2
<r2> 97.144
(<r2>)1/2 9.856