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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: HF/aug-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 HF/aug-cc-pVTZ
 hartrees
Energy at 0K-188.169373
Energy at 298.15K 
HF Energy-188.169373
Nuclear repulsion energy118.573073
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 HF/aug-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 3830 3487 3.38 76.99 0.74 0.85
2 A 3740 3405 0.99 245.51 0.04 0.08
3 A 3292 2997 0.01 142.33 0.30 0.46
4 A 1902 1731 0.16 95.77 0.11 0.21
5 A 1779 1620 21.97 5.01 0.53 0.70
6 A 1450 1320 0.61 29.28 0.25 0.40
7 A 1372 1249 0.02 12.97 0.55 0.71
8 A 1105 1006 0.81 11.31 0.10 0.19
9 A 1048 954 77.51 0.85 0.36 0.53
10 A 859 782 139.56 3.03 0.34 0.51
11 A 590 537 1.78 8.48 0.17 0.29
12 A 332 303 5.25 1.89 0.34 0.50
13 A 253 231 13.45 0.43 0.75 0.86
14 B 3829 3486 13.98 28.23 0.75 0.86
15 B 3739 3404 10.04 45.24 0.75 0.86
16 B 3294 2999 47.23 0.01 0.75 0.86
17 B 1789 1629 61.15 2.15 0.75 0.86
18 B 1508 1373 8.01 0.23 0.75 0.86
19 B 1225 1115 136.31 0.04 0.75 0.86
20 B 1216 1107 1.31 0.76 0.75 0.86
21 B 945 860 68.17 13.99 0.75 0.86
22 B 800 728 286.82 0.08 0.75 0.86
23 B 352 320 17.55 0.15 0.75 0.86
24 B 244 222 120.96 0.19 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 20244.8 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 18430.9 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 HF/aug-cc-pVTZ
ABC
1.48579 0.13415 0.12476

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.310 0.581 0.017
C2 -0.310 -0.581 0.017
N3 -0.310 1.842 -0.093
N4 0.310 -1.842 -0.093
H5 1.385 0.621 0.019
H6 -1.385 -0.621 0.019
H7 -1.304 1.793 -0.065
H8 1.304 -1.793 -0.065
H9 0.011 2.489 0.593
H10 -0.011 -2.489 0.593

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.31661.40922.42491.07622.07812.02062.57522.01583.1400
C21.31662.42491.40922.07811.07622.57522.02063.14002.0158
N31.40922.42493.73492.09172.68970.99623.97720.99654.3950
N42.42491.40923.73492.68972.09173.97720.99624.39500.9965
H51.07622.07812.09172.68973.03642.93522.41722.38923.4574
H62.07811.07622.68972.09173.03642.41722.93523.45742.3892
H72.02062.57520.99623.97722.93522.41724.43481.62754.5217
H82.57522.02063.97720.99622.41722.93524.43484.52171.6275
H92.01583.14000.99654.39502.38923.45741.62754.52174.9784
H103.14002.01584.39500.99653.45742.38924.52171.62754.9784

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.616 C1 C2 H6 120.235
C1 N3 H7 113.168 C1 N3 H9 112.719
C2 C1 N3 125.616 C2 C1 H5 120.235
C2 N4 H8 113.168 C2 N4 H10 112.719
N3 C1 H5 113.953 N4 C2 H6 113.953
H7 N3 H9 109.516 H8 N4 H10 109.516
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.226      
2 C -0.226      
3 N -0.514      
4 N -0.514      
5 H 0.531      
6 H 0.531      
7 H 0.124      
8 H 0.124      
9 H 0.085      
10 H 0.085      


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 2.153 2.153
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.771 -1.341 0.000
y -1.341 -24.278 0.000
z 0.000 0.000 -28.510
Traceless
 xyz
x 5.623 -1.341 0.000
y -1.341 0.363 0.000
z 0.000 0.000 -5.986
Polar
3z2-r2-11.971
x2-y23.507
xy-1.341
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.824 0.263 0.000
y 0.263 8.938 0.000
z 0.000 0.000 4.879


<r2> (average value of r2) Å2
<r2> 97.012
(<r2>)1/2 9.849