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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: PBE1PBE/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 PBE1PBE/6-311G*
 hartrees
Energy at 0K-189.106706
Energy at 298.15K 
HF Energy-189.106706
Nuclear repulsion energy117.803210
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 PBE1PBE/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 3638 3487 0.41      
2 A 3543 3396 1.03      
3 A 3151 3021 0.02      
4 A 1788 1714 0.00      
5 A 1699 1629 32.23      
6 A 1346 1290 0.60      
7 A 1305 1251 0.14      
8 A 1055 1011 0.67      
9 A 935 896 80.41      
10 A 833 798 159.83      
11 A 558 535 1.89      
12 A 338 324 0.78      
13 A 255 245 21.63      
14 B 3637 3486 0.96      
15 B 3541 3394 0.74      
16 B 3155 3024 60.30      
17 B 1710 1639 65.86      
18 B 1410 1351 7.99      
19 B 1205 1155 99.70      
20 B 1144 1097 0.77      
21 B 816 782 175.19      
22 B 759 728 297.62      
23 B 350 336 46.58      
24 B 251 240 109.03      

Unscaled Zero Point Vibrational Energy (zpe) 19210.6 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 18413.4 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 PBE1PBE/6-311G*
ABC
1.44969 0.13294 0.12368

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.310 0.592 0.041
C2 -0.310 -0.592 0.041
N3 -0.310 1.846 -0.112
N4 0.310 -1.846 -0.112
H5 1.399 0.636 0.040
H6 -1.399 -0.636 0.040
H7 -1.319 1.782 -0.081
H8 1.319 -1.782 -0.081
H9 -0.001 2.517 0.581
H10 0.001 -2.517 0.581

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33561.40752.44291.08992.10392.02072.58222.02333.1700
C21.33562.44291.40752.10391.08992.58222.02073.17002.0233
N31.40752.44293.74442.09892.71541.01163.97731.01194.4286
N42.44291.40753.74442.71542.09893.97731.01164.42861.0119
H51.08992.10392.09892.71543.07322.95142.42292.40563.4909
H62.10391.08992.71542.09893.07322.42292.95143.49092.4056
H72.02072.58221.01163.97732.95142.42294.43391.64724.5453
H82.58222.02073.97731.01162.42292.95144.43394.54531.6472
H92.02333.17001.01194.42862.40563.49091.64724.54535.0334
H103.17002.02334.42861.01193.49092.40564.54531.64725.0334

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.864 C1 C2 H6 119.974
C1 N3 H7 112.267 C1 N3 H9 112.470
C2 C1 N3 125.864 C2 C1 H5 119.974
C2 N4 H8 112.267 C2 N4 H10 112.470
N3 C1 H5 113.765 N4 C2 H6 113.765
H7 N3 H9 108.989 H8 N4 H10 108.989
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.084      
2 C -0.084      
3 N -0.775      
4 N -0.775      
5 H 0.202      
6 H 0.202      
7 H 0.330      
8 H 0.330      
9 H 0.328      
10 H 0.328      


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 2.326 2.326
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.379 -1.894 0.000
y -1.894 -22.570 0.000
z 0.000 0.000 -28.397
Traceless
 xyz
x 5.104 -1.894 0.000
y -1.894 1.818 0.000
z 0.000 0.000 -6.922
Polar
3z2-r2-13.844
x2-y22.191
xy-1.894
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.325 0.172 0.000
y 0.172 8.646 0.000
z 0.000 0.000 3.274


<r2> (average value of r2) Å2
<r2> 97.382
(<r2>)1/2 9.868