return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: wB97X-D/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 wB97X-D/6-311G*
 hartrees
Energy at 0K-189.269477
Energy at 298.15K 
HF Energy-189.269477
Nuclear repulsion energy117.706661
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 wB97X-D/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 3648 3648 0.47      
2 A 3556 3556 1.10      
3 A 3160 3160 0.02      
4 A 1797 1797 0.02      
5 A 1707 1707 32.34      
6 A 1354 1354 0.57      
7 A 1305 1305 0.10      
8 A 1059 1059 0.90      
9 A 936 936 80.96      
10 A 830 830 165.71      
11 A 564 564 1.58      
12 A 333 333 1.42      
13 A 250 250 20.62      
14 B 3647 3647 0.65      
15 B 3554 3554 0.33      
16 B 3162 3162 61.38      
17 B 1718 1718 69.47      
18 B 1414 1414 6.12      
19 B 1198 1198 102.17      
20 B 1151 1151 0.96      
21 B 824 824 154.69      
22 B 756 756 321.17      
23 B 351 351 30.81      
24 B 247 247 125.69      

Unscaled Zero Point Vibrational Energy (zpe) 19260.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19260.1 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 wB97X-D/6-311G*
ABC
1.44923 0.13269 0.12342

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.311 0.590 0.035
C2 -0.311 -0.590 0.035
N3 -0.311 1.849 -0.108
N4 0.311 -1.849 -0.108
H5 1.399 0.636 0.034
H6 -1.399 -0.636 0.034
H7 -1.320 1.787 -0.075
H8 1.320 -1.787 -0.075
H9 0.003 2.515 0.585
H10 -0.003 -2.515 0.585

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33301.41202.44301.08902.10342.02602.58422.02603.1685
C21.33302.44301.41202.10341.08902.58422.02603.16852.0260
N31.41202.44303.75022.10152.71631.01133.98511.01134.4297
N42.44301.41203.75022.71632.10153.98511.01134.42971.0113
H51.08902.10342.10152.71633.07302.95432.42632.40533.4921
H62.10341.08902.71632.10153.07302.42632.95433.49212.4053
H72.02602.58421.01133.98512.95432.42634.44281.64794.5474
H82.58422.02603.98511.01132.42632.95434.44284.54741.6479
H92.02603.16851.01134.42972.40533.49211.64794.54745.0301
H103.16852.02604.42971.01133.49212.40534.54741.64795.0301

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.717 C1 C2 H6 120.220
C1 N3 H7 112.397 C1 N3 H9 112.403
C2 C1 N3 125.717 C2 C1 H5 120.220
C2 N4 H8 112.397 C2 N4 H10 112.403
N3 C1 H5 113.708 N4 C2 H6 113.708
H7 N3 H9 109.125 H8 N4 H10 109.125
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.086      
2 C -0.086      
3 N -0.766      
4 N -0.766      
5 H 0.201      
6 H 0.201      
7 H 0.327      
8 H 0.327      
9 H 0.324      
10 H 0.324      


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 2.377 2.377
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.281 -1.827 0.000
y -1.827 -22.777 0.000
z 0.000 0.000 -28.311
Traceless
 xyz
x 5.263 -1.827 0.000
y -1.827 1.519 0.000
z 0.000 0.000 -6.782
Polar
3z2-r2-13.565
x2-y22.496
xy-1.827
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.305 0.233 0.000
y 0.233 8.515 0.000
z 0.000 0.000 3.243


<r2> (average value of r2) Å2
<r2> 97.535
(<r2>)1/2 9.876