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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: PBE1PBE/aug-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 PBE1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-189.149525
Energy at 298.15K 
HF Energy-189.149525
Nuclear repulsion energy118.015231
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 PBE1PBE/aug-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 3642 3502 2.56      
2 A 3547 3411 0.24      
3 A 3153 3032 0.06      
4 A 1771 1702 0.54      
5 A 1640 1577 17.97      
6 A 1334 1283 0.44      
7 A 1287 1238 0.01      
8 A 1036 997 0.14      
9 A 935 899 69.41      
10 A 773 743 135.26      
11 A 555 534 2.46      
12 A 331 318 4.22      
13 A 242 233 15.22      
14 B 3642 3501 11.25      
15 B 3546 3409 4.92      
16 B 3157 3035 42.85      
17 B 1647 1584 55.58      
18 B 1391 1337 10.64      
19 B 1192 1146 134.35      
20 B 1121 1078 1.14      
21 B 824 792 52.22      
22 B 716 688 297.60      
23 B 343 330 34.14      
24 B 247 238 95.38      

Unscaled Zero Point Vibrational Energy (zpe) 19035.7 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 18302.9 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 PBE1PBE/aug-cc-pVTZ
ABC
1.45832 0.13358 0.12407

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-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 1.397 0.631 0.036
H6 -1.397 -0.631 0.036
H7 -1.318 1.789 -0.048
H8 1.318 -1.789 -0.048
H9 0.029 2.528 0.551
H10 -0.029 -2.528 0.551

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33221.40532.43421.08692.09902.02542.58412.02653.1780
C21.33222.43421.40532.09901.08692.58412.02543.17802.0265
N31.40532.43423.73442.09862.70351.01003.97971.00994.4275
N42.43421.40533.73442.70352.09863.97971.01004.42751.0099
H51.08692.09902.09862.70353.06592.95352.42272.39543.5039
H62.09901.08692.70352.09863.06592.42272.95353.50392.3954
H72.02542.58411.01003.97972.95352.42274.44491.64924.5456
H82.58412.02543.97971.01002.42272.95354.44494.54561.6492
H92.02653.17801.00994.42752.39543.50391.64924.54565.0569
H103.17802.02654.42751.00993.50392.39544.54561.64925.0569

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.525 C1 C2 H6 120.033
C1 N3 H7 112.960 C1 N3 H9 113.071
C2 C1 N3 125.525 C2 C1 H5 120.033
C2 N4 H8 112.960 C2 N4 H10 113.071
N3 C1 H5 114.114 N4 C2 H6 114.114
H7 N3 H9 109.470 H8 N4 H10 109.470
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.182      
2 C -0.182      
3 N -0.379      
4 N -0.379      
5 H 0.427      
6 H 0.427      
7 H 0.078      
8 H 0.078      
9 H 0.055      
10 H 0.055      


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 -20.931 -1.327 0.000
y -1.327 -23.093 0.000
z 0.000 0.000 -28.766
Traceless
 xyz
x 4.998 -1.327 0.000
y -1.327 1.756 0.000
z 0.000 0.000 -6.754
Polar
3z2-r2-13.509
x2-y22.161
xy-1.327
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.293 -0.012 0.000
y -0.012 10.094 0.000
z 0.000 0.000 5.232


<r2> (average value of r2) Å2
<r2> 97.439
(<r2>)1/2 9.871