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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: HF/daug-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 HF/daug-cc-pVTZ
 hartrees
Energy at 0K-188.169586
Energy at 298.15K 
HF Energy-188.169586
Nuclear repulsion energy118.574117
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/daug-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 3829 3464 3.37 77.04 0.74 0.85
2 A 3740 3383 1.00 247.54 0.04 0.08
3 A 3292 2978 0.01 141.90 0.30 0.46
4 A 1902 1720 0.16 97.75 0.11 0.20
5 A 1779 1609 22.10 4.94 0.51 0.68
6 A 1450 1311 0.62 29.37 0.25 0.40
7 A 1372 1241 0.02 13.03 0.53 0.70
8 A 1105 999 0.86 11.54 0.10 0.19
9 A 1048 948 77.13 0.80 0.37 0.54
10 A 859 777 139.89 3.50 0.31 0.47
11 A 590 533 1.77 8.43 0.17 0.29
12 A 333 301 5.22 1.96 0.32 0.49
13 A 254 229 13.44 0.45 0.75 0.86
14 B 3829 3464 13.98 28.16 0.75 0.86
15 B 3739 3382 10.09 45.38 0.75 0.86
16 B 3294 2980 47.14 0.00 0.75 0.86
17 B 1789 1618 61.23 2.14 0.75 0.86
18 B 1508 1364 8.00 0.23 0.75 0.86
19 B 1225 1108 136.16 0.04 0.75 0.86
20 B 1216 1100 1.37 0.78 0.75 0.86
21 B 946 856 67.31 14.10 0.75 0.86
22 B 800 724 287.83 0.09 0.75 0.86
23 B 352 318 17.84 0.16 0.75 0.86
24 B 244 221 120.63 0.21 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 20245.2 cm-1
Scaled (by 0.9046) Zero Point Vibrational Energy (zpe) 18313.8 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 HF/daug-cc-pVTZ
ABC
1.48581 0.13415 0.12477

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

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 1.793 -0.065
H8 1.304 -1.793 -0.065
H9 0.011 2.489 0.593
H10 -0.011 -2.489 0.593

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.31661.40912.42481.07622.07812.02052.57512.01583.1401
C21.31662.42481.40912.07811.07622.57512.02053.14012.0158
N31.40912.42483.73492.09172.68960.99623.97710.99654.3950
N42.42481.40913.73492.68962.09173.97710.99624.39500.9965
H51.07622.07812.09172.68963.03642.93522.41712.38933.4575
H62.07811.07622.68962.09173.03642.41712.93523.45752.3893
H72.02052.57510.99623.97712.93522.41714.43481.62754.5217
H82.57512.02053.97710.99622.41712.93524.43484.52171.6275
H92.01583.14010.99654.39502.38933.45751.62754.52174.9787
H103.14012.01584.39500.99653.45752.38934.52171.62754.9787

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.614 C1 C2 H6 120.234
C1 N3 H7 113.170 C1 N3 H9 112.726
C2 C1 N3 125.614 C2 C1 H5 120.234
C2 N4 H8 113.170 C2 N4 H10 112.726
N3 C1 H5 113.956 N4 C2 H6 113.956
H7 N3 H9 109.519 H8 N4 H10 109.519
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.493      
2 C -0.493      
3 N -0.496      
4 N -0.496      
5 H 0.721      
6 H 0.721      
7 H 0.069      
8 H 0.069      
9 H 0.199      
10 H 0.199      


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 2.154 2.154
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.770 -1.335 0.000
y -1.335 -24.280 0.000
z 0.000 0.000 -28.506
Traceless
 xyz
x 5.623 -1.335 0.000
y -1.335 0.358 0.000
z 0.000 0.000 -5.980
Polar
3z2-r2-11.961
x2-y23.510
xy-1.335
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.836 0.253 0.000
y 0.253 8.962 0.000
z 0.000 0.000 4.890


<r2> (average value of r2) Å2
<r2> 97.010
(<r2>)1/2 9.849