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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: mPW1PW91/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 mPW1PW91/daug-cc-pVTZ
 hartrees
Energy at 0K-189.327202
Energy at 298.15K 
HF Energy-189.327202
Nuclear repulsion energy118.060705
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/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 3647 3647 2.44      
2 A 3553 3553 0.23      
3 A 3159 3159 0.06      
4 A 1771 1771 0.51      
5 A 1647 1647 18.10      
6 A 1339 1339 0.45      
7 A 1289 1289 0.01      
8 A 1037 1037 0.14      
9 A 940 940 68.69      
10 A 774 774 136.78      
11 A 555 555 2.38      
12 A 331 331 4.19      
13 A 243 243 15.00      
14 B 3647 3647 10.78      
15 B 3552 3552 4.74      
16 B 3163 3163 42.96      
17 B 1653 1653 54.70      
18 B 1396 1396 10.10      
19 B 1189 1189 134.42      
20 B 1125 1125 1.25      
21 B 827 827 50.44      
22 B 717 717 299.88      
23 B 344 344 33.72      
24 B 247 247 95.55      

Unscaled Zero Point Vibrational Energy (zpe) 19071.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19071.4 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 mPW1PW91/daug-cc-pVTZ
ABC
1.46169 0.13360 0.12410

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.311 0.589 0.034
C2 -0.311 -0.589 0.034
N3 -0.311 1.841 -0.106
N4 0.311 -1.841 -0.106
H5 1.395 0.631 0.035
H6 -1.395 -0.631 0.035
H7 -1.317 1.791 -0.048
H8 1.317 -1.791 -0.048
H9 0.030 2.528 0.549
H10 -0.030 -2.528 0.549

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33121.40542.43361.08532.09722.02562.58492.02623.1770
C21.33122.43361.40542.09721.08532.58492.02563.17702.0262
N31.40542.43363.73422.09702.70281.00873.98071.00874.4266
N42.43361.40543.73422.70282.09703.98071.00874.42661.0087
H51.08532.09722.09702.70283.06272.95132.42452.39323.5031
H62.09721.08532.70282.09703.06272.42452.95133.50312.3932
H72.02562.58491.00873.98072.95132.42454.44631.64744.5460
H82.58492.02563.98071.00872.42452.95134.44634.54601.6474
H92.02623.17701.00874.42662.39323.50311.64744.54605.0559
H103.17702.02624.42661.00873.50312.39324.54601.64745.0559

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.534 C1 C2 H6 120.075
C1 N3 H7 113.054 C1 N3 H9 113.107
C2 C1 N3 125.534 C2 C1 H5 120.075
C2 N4 H8 113.054 C2 N4 H10 113.107
N3 C1 H5 114.068 N4 C2 H6 114.068
H7 N3 H9 109.502 H8 N4 H10 109.502
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.196      
2 C -0.196      
3 N -0.550      
4 N -0.550      
5 H 0.568      
6 H 0.568      
7 H 0.044      
8 H 0.044      
9 H 0.134      
10 H 0.134      


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 1.986 1.986
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.864 -1.314 0.000
y -1.314 -23.053 0.000
z 0.000 0.000 -28.675
Traceless
 xyz
x 5.000 -1.314 0.000
y -1.314 1.716 0.000
z 0.000 0.000 -6.716
Polar
3z2-r2-13.432
x2-y22.189
xy-1.314
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.271 -0.023 0.000
y -0.023 10.092 0.000
z 0.000 0.000 5.229


<r2> (average value of r2) Å2
<r2> 97.374
(<r2>)1/2 9.868