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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: PBEPBEultrafine/daug-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 PBEPBEultrafine/daug-cc-pVDZ
 hartrees
Energy at 0K-189.091854
Energy at 298.15K 
HF Energy-189.091854
Nuclear repulsion energy116.633336
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 PBEPBEultrafine/daug-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 3505 3505 1.19      
2 A 3404 3404 0.09      
3 A 3077 3077 0.10      
4 A 1699 1699 0.62      
5 A 1571 1571 16.37      
6 A 1281 1281 0.38      
7 A 1242 1242 0.01      
8 A 1004 1004 0.14      
9 A 881 881 67.32      
10 A 757 757 115.44      
11 A 537 537 1.66      
12 A 322 322 2.67      
13 A 238 238 16.19      
14 B 3504 3504 4.01      
15 B 3401 3401 1.27      
16 B 3081 3081 48.39      
17 B 1578 1578 44.54      
18 B 1336 1336 11.54      
19 B 1157 1157 116.08      
20 B 1083 1083 1.62      
21 B 765 765 62.02      
22 B 703 703 287.80      
23 B 341 341 39.32      
24 B 247 247 81.27      

Unscaled Zero Point Vibrational Energy (zpe) 18358.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18358.0 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 PBEPBEultrafine/daug-cc-pVDZ
ABC
1.41191 0.13071 0.12145

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.315 0.599 0.046
C2 -0.315 -0.599 0.046
N3 -0.315 1.860 -0.118
N4 0.315 -1.860 -0.118
H5 1.415 0.646 0.049
H6 -1.415 -0.646 0.049
H7 -1.335 1.798 -0.051
H8 1.335 -1.798 -0.051
H9 0.016 2.557 0.555
H10 -0.016 -2.557 0.555

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.35341.41902.46421.10122.13152.04162.60642.04513.2139
C21.35342.46421.41902.13151.10122.60642.04163.21392.0451
N31.41902.46423.77262.12002.74191.02414.01291.02414.4778
N42.46421.41903.77262.74192.12004.01291.02414.47781.0241
H51.10122.13152.12002.74193.11132.98312.44712.42173.5446
H62.13151.10122.74192.12003.11132.44712.98313.54462.4217
H72.04162.60641.02414.01292.98312.44714.47821.66414.5901
H82.60642.04164.01291.02412.44712.98314.47824.59011.6641
H92.04513.21391.02414.47782.42173.54461.66414.59015.1140
H103.21392.04514.47781.02413.54462.42174.59011.66415.1140

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.442 C1 C2 H6 120.192
C1 N3 H7 112.370 C1 N3 H9 112.671
C2 C1 N3 125.442 C2 C1 H5 120.192
C2 N4 H8 112.370 C2 N4 H10 112.671
N3 C1 H5 113.941 N4 C2 H6 113.941
H7 N3 H9 108.675 H8 N4 H10 108.675
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.526      
2 C 0.526      
3 N 0.375      
4 N 0.375      
5 H -0.868      
6 H -0.868      
7 H -0.058      
8 H -0.058      
9 H 0.026      
10 H 0.026      


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 1.935 1.935
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.450 -1.413 0.000
y -1.413 -23.370 0.000
z 0.000 0.000 -29.230
Traceless
 xyz
x 4.850 -1.413 0.000
y -1.413 1.970 0.000
z 0.000 0.000 -6.820
Polar
3z2-r2-13.640
x2-y21.920
xy-1.413
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.804 -0.178 0.000
y -0.178 11.103 0.000
z 0.000 0.000 5.662


<r2> (average value of r2) Å2
<r2> 99.517
(<r2>)1/2 9.976