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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: PBEPBE/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 PBEPBE/aug-cc-pVDZ
 hartrees
Energy at 0K-189.090807
Energy at 298.15K 
HF Energy-189.090807
Nuclear repulsion energy116.617349
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 PBEPBE/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 3507 3486 1.32      
2 A 3405 3385 0.06      
3 A 3077 3058 0.10      
4 A 1699 1689 0.68      
5 A 1569 1560 16.19      
6 A 1280 1272 0.49      
7 A 1242 1234 0.00      
8 A 1004 998 0.14      
9 A 880 875 68.68      
10 A 756 751 117.13      
11 A 537 534 1.80      
12 A 325 323 2.73      
13 A 238 237 16.61      
14 B 3506 3485 4.06      
15 B 3403 3382 1.27      
16 B 3081 3062 48.42      
17 B 1576 1567 44.83      
18 B 1335 1327 11.64      
19 B 1158 1151 116.81      
20 B 1082 1075 1.69      
21 B 764 760 62.97      
22 B 701 697 290.00      
23 B 342 340 40.60      
24 B 249 247 82.76      

Unscaled Zero Point Vibrational Energy (zpe) 18357.8 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 18245.8 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 PBEPBE/aug-cc-pVDZ
ABC
1.41193 0.13067 0.12141

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.315 0.599 0.047
C2 -0.315 -0.599 0.047
N3 -0.315 1.860 -0.118
N4 0.315 -1.860 -0.118
H5 1.416 0.646 0.049
H6 -1.416 -0.646 0.049
H7 -1.335 1.799 -0.054
H8 1.335 -1.799 -0.054
H9 0.017 2.558 0.554
H10 -0.017 -2.558 0.554

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.35351.41892.46471.10202.13212.04252.60822.04553.2150
C21.35352.46471.41892.13211.10202.60822.04253.21502.0455
N31.41892.46473.77292.12022.74271.02414.01431.02424.4790
N42.46471.41893.77292.74272.12024.01431.02414.47901.0242
H51.10202.13212.12022.74273.11272.98432.44912.42223.5463
H62.13211.10202.74272.12023.11272.44912.98433.54632.4222
H72.04252.60821.02414.01432.98432.44914.48061.66534.5928
H82.60822.04254.01431.02412.44912.98434.48064.59281.6653
H92.04553.21501.02424.47902.42223.54631.66534.59285.1165
H103.21502.04554.47901.02423.54632.42224.59281.66535.1165

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.481 C1 C2 H6 120.173
C1 N3 H7 112.449 C1 N3 H9 112.709
C2 C1 N3 125.481 C2 C1 H5 120.173
C2 N4 H8 112.449 C2 N4 H10 112.709
N3 C1 H5 113.911 N4 C2 H6 113.911
H7 N3 H9 108.784 H8 N4 H10 108.784
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.876      
2 C 0.876      
3 N -0.220      
4 N -0.220      
5 H -0.565      
6 H -0.565      
7 H -0.048      
8 H -0.048      
9 H -0.043      
10 H -0.043      


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 1.928 1.928
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.423 -1.458 0.000
y -1.458 -23.320 0.000
z 0.000 0.000 -29.240
Traceless
 xyz
x 4.857 -1.458 0.000
y -1.458 2.011 0.000
z 0.000 0.000 -6.868
Polar
3z2-r2-13.737
x2-y21.897
xy-1.458
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.690 -0.114 0.000
y -0.114 10.931 0.000
z 0.000 0.000 5.555


<r2> (average value of r2) Å2
<r2> 99.538
(<r2>)1/2 9.977