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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B2PLYP=FULLultrafine/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP=FULLultrafine/6-311+G(3df,2p)
 hartrees
Energy at 0K-189.232174
Energy at 298.15K 
HF Energy-188.960404
Nuclear repulsion energy117.766808
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 B2PLYP=FULLultrafine/6-311+G(3df,2p)
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 3635 3635 2.74      
2 A 3539 3539 0.36      
3 A 3163 3163 0.08      
4 A 1749 1749 0.24      
5 A 1650 1650 19.66      
6 A 1344 1344 0.41      
7 A 1284 1284 0.00      
8 A 1033 1033 0.14      
9 A 937 937 70.69      
10 A 776 776 136.74      
11 A 554 554 2.05      
12 A 325 325 3.83      
13 A 240 240 15.27      
14 B 3635 3635 11.31      
15 B 3538 3538 5.89      
16 B 3167 3167 39.85      
17 B 1657 1657 53.57      
18 B 1399 1399 8.74      
19 B 1175 1175 124.92      
20 B 1127 1127 1.88      
21 B 818 818 59.35      
22 B 721 721 295.94      
23 B 341 341 30.64      
24 B 248 248 98.06      

Unscaled Zero Point Vibrational Energy (zpe) 19027.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19027.4 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 B2PLYP=FULLultrafine/6-311+G(3df,2p)
ABC
1.45244 0.13291 0.12348

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.589 0.035
C2 -0.313 -0.589 0.035
N3 -0.313 1.846 -0.107
N4 0.313 -1.846 -0.107
H5 1.396 0.632 0.037
H6 -1.396 -0.632 0.037
H7 -1.321 1.794 -0.057
H8 1.321 -1.794 -0.057
H9 0.021 2.531 0.556
H10 -0.021 -2.531 0.556

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33431.41132.43941.08372.10032.03192.58912.03183.1812
C21.33432.43941.41132.10031.08372.58912.03193.18122.0318
N31.41132.43943.74482.10122.70801.01013.99021.00984.4369
N42.43941.41133.74482.70802.10123.99021.01014.43691.0098
H51.08372.10032.10122.70803.06442.95612.42902.40163.5045
H62.10031.08372.70802.10123.06442.42902.95613.50452.4016
H72.03192.58911.01013.99022.95612.42904.45541.64844.5579
H82.58912.03193.99021.01012.42902.95614.45544.55791.6484
H92.03183.18121.00984.43692.40163.50451.64844.55795.0629
H103.18122.03184.43691.00983.50452.40164.55791.64845.0629

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.337 C1 C2 H6 120.236
C1 N3 H7 113.054 C1 N3 H9 113.059
C2 C1 N3 125.337 C2 C1 H5 120.236
C2 N4 H8 113.054 C2 N4 H10 113.059
N3 C1 H5 114.098 N4 C2 H6 114.098
H7 N3 H9 109.388 H8 N4 H10 109.388
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability