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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: mPW1PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-189.280821
Energy at 298.15K 
HF Energy-189.280821
Nuclear repulsion energy117.552735
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 mPW1PW91/aug-cc-pVDZ
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 3644 3492 2.21      
2 A 3542 3394 0.16      
3 A 3175 3043 0.06      
4 A 1778 1704 0.62      
5 A 1630 1562 18.37      
6 A 1330 1275 0.48      
7 A 1286 1232 0.00      
8 A 1038 995 0.02      
9 A 933 894 69.56      
10 A 779 747 130.06      
11 A 554 531 2.17      
12 A 327 314 3.87      
13 A 244 234 15.25      
14 B 3643 3491 8.40      
15 B 3540 3393 3.26      
16 B 3178 3046 45.60      
17 B 1638 1570 54.38      
18 B 1386 1328 10.66      
19 B 1195 1145 131.64      
20 B 1120 1073 1.20      
21 B 821 786 57.90      
22 B 722 692 293.71      
23 B 343 329 34.23      
24 B 249 238 96.73      

Unscaled Zero Point Vibrational Energy (zpe) 19047.1 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 18252.8 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 mPW1PW91/aug-cc-pVDZ
ABC
1.44235 0.13258 0.12316

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.593 0.035
C2 -0.313 -0.593 0.035
N3 -0.313 1.848 -0.109
N4 0.313 -1.848 -0.109
H5 1.404 0.637 0.036
H6 -1.404 -0.637 0.036
H7 -1.323 1.792 -0.047
H8 1.323 -1.792 -0.047
H9 0.023 2.532 0.560
H10 -0.023 -2.532 0.560

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33991.40992.44491.09272.11162.02932.59072.03003.1861
C21.33992.44491.40992.11161.09272.59072.02933.18612.0300
N31.40992.44493.74872.10632.71781.01343.99071.01364.4404
N42.44491.40993.74872.71782.10633.99071.01344.44041.0136
H51.09272.11162.10632.71783.08392.96262.43112.40333.5146
H62.11161.09272.71782.10633.08392.43112.96263.51462.4033
H72.02932.59071.01343.99072.96262.43114.45391.65114.5555
H82.59072.02933.99071.01342.43112.96264.45394.55551.6511
H92.03003.18611.01364.44042.40333.51461.65114.55555.0644
H103.18612.03004.44041.01363.51462.40334.55551.65115.0644

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.507 C1 C2 H6 120.118
C1 N3 H7 112.711 C1 N3 H9 112.757
C2 C1 N3 125.507 C2 C1 H5 120.118
C2 N4 H8 112.711 C2 N4 H10 112.757
N3 C1 H5 114.031 N4 C2 H6 114.031
H7 N3 H9 109.083 H8 N4 H10 109.083
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.809      
2 C 0.809      
3 N -0.302      
4 N -0.302      
5 H -0.460      
6 H -0.460      
7 H -0.025      
8 H -0.025      
9 H -0.021      
10 H -0.021      


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 2.021 2.021
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.904 -1.364 0.000
y -1.364 -23.271 0.000
z 0.000 0.000 -28.834
Traceless
 xyz
x 5.148 -1.364 0.000
y -1.364 1.598 0.000
z 0.000 0.000 -6.746
Polar
3z2-r2-13.492
x2-y22.366
xy-1.364
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.254 0.026 0.000
y 0.026 10.061 0.000
z 0.000 0.000 5.221


<r2> (average value of r2) Å2
<r2> 98.083
(<r2>)1/2 9.904