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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-188.173031
Energy at 298.15K 
HF Energy-188.173031
Nuclear repulsion energy118.590035
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 HF/Def2TZVPP
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 3832 3473 2.95 92.69 0.74 0.85
2 A 3742 3392 2.01 239.77 0.05 0.10
3 A 3293 2985 0.00 151.38 0.29 0.45
4 A 1905 1726 0.22 78.37 0.15 0.26
5 A 1780 1613 23.62 7.00 0.74 0.85
6 A 1450 1315 0.70 22.93 0.30 0.46
7 A 1374 1245 0.01 15.18 0.57 0.73
8 A 1107 1003 0.50 8.68 0.18 0.31
9 A 1049 951 77.42 0.41 0.40 0.57
10 A 871 790 144.95 1.15 0.50 0.67
11 A 591 536 1.50 8.03 0.24 0.39
12 A 333 302 4.77 2.48 0.40 0.58
13 A 255 231 14.28 0.50 0.74 0.85
14 B 3832 3473 10.70 29.27 0.75 0.86
15 B 3742 3391 7.77 43.65 0.75 0.86
16 B 3295 2987 50.18 0.04 0.75 0.86
17 B 1789 1622 57.53 2.56 0.75 0.86
18 B 1510 1368 8.02 0.24 0.75 0.86
19 B 1226 1111 125.21 0.13 0.75 0.86
20 B 1218 1104 2.55 0.81 0.75 0.86
21 B 947 859 80.78 14.97 0.75 0.86
22 B 808 733 311.44 0.10 0.75 0.86
23 B 353 320 19.15 0.19 0.75 0.86
24 B 244 221 124.35 0.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 20272.8 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 18375.3 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 HF/Def2TZVPP
ABC
1.48533 0.13418 0.12482

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.310 0.581 0.017
C2 -0.310 -0.581 0.017
N3 -0.310 1.842 -0.093
N4 0.310 -1.842 -0.093
H5 1.385 0.621 0.019
H6 -1.385 -0.621 0.019
H7 -1.304 1.791 -0.067
H8 1.304 -1.791 -0.067
H9 0.007 2.485 0.599
H10 -0.007 -2.485 0.599

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.31641.40922.42501.07642.07762.01852.57282.01403.1365
C21.31642.42501.40922.07761.07642.57282.01853.13652.0140
N31.40922.42503.73522.09192.68950.99603.97470.99644.3922
N42.42501.40923.73522.68952.09193.97470.99604.39220.9964
H51.07642.07762.09192.68953.03602.93392.41432.39013.4525
H62.07761.07642.68952.09193.03602.41432.93393.45252.3901
H72.01852.57280.99603.97472.93392.41434.43021.62584.5174
H82.57282.01853.97470.99602.41432.93394.43024.51741.6258
H92.01403.13650.99644.39222.39013.45251.62584.51744.9700
H103.13652.01404.39220.99643.45252.39014.51741.62584.9700

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.652 C1 C2 H6 120.196
C1 N3 H7 113.000 C1 N3 H9 112.569
C2 C1 N3 125.652 C2 C1 H5 120.196
C2 N4 H8 113.000 C2 N4 H10 112.569
N3 C1 H5 113.955 N4 C2 H6 113.955
H7 N3 H9 109.368 H8 N4 H10 109.368
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.043      
2 C 0.043      
3 N -0.373      
4 N -0.373      
5 H 0.033      
6 H 0.033      
7 H 0.144      
8 H 0.144      
9 H 0.153      
10 H 0.153      


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 2.175 2.175
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.642 -1.452 0.000
y -1.452 -24.000 0.000
z 0.000 0.000 -28.316
Traceless
 xyz
x 5.516 -1.452 0.000
y -1.452 0.479 0.000
z 0.000 0.000 -5.995
Polar
3z2-r2-11.990
x2-y23.358
xy-1.452
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.478 0.350 0.000
y 0.350 8.423 0.000
z 0.000 0.000 4.247


<r2> (average value of r2) Å2
<r2> 96.843
(<r2>)1/2 9.841