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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B1B95/aug-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 B1B95/aug-cc-pVDZ
 hartrees
Energy at 0K-189.233920
Energy at 298.15K 
HF Energy-189.233920
Nuclear repulsion energy117.720765
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 B1B95/aug-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 3646 3492 2.32      
2 A 3544 3395 0.21      
3 A 3177 3044 0.07      
4 A 1783 1708 0.68      
5 A 1624 1556 18.25      
6 A 1326 1270 0.43      
7 A 1283 1229 0.01      
8 A 1036 992 0.01      
9 A 932 893 66.45      
10 A 774 742 129.73      
11 A 551 527 2.47      
12 A 324 311 4.04      
13 A 242 232 14.91      
14 B 3645 3492 8.60      
15 B 3542 3393 3.64      
16 B 3181 3047 47.07      
17 B 1632 1563 55.18      
18 B 1380 1322 12.79      
19 B 1196 1145 133.05      
20 B 1114 1067 1.36      
21 B 820 786 54.99      
22 B 717 686 290.51      
23 B 339 325 36.54      
24 B 243 233 96.21      

Unscaled Zero Point Vibrational Energy (zpe) 19025.4 cm-1
Scaled (by 0.9579) Zero Point Vibrational Energy (zpe) 18224.4 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 B1B95/aug-cc-pVDZ
ABC
1.44545 0.13301 0.12355

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.312 0.591 0.035
C2 -0.312 -0.591 0.035
N3 -0.312 1.845 -0.108
N4 0.312 -1.845 -0.108
H5 1.403 0.634 0.036
H6 -1.403 -0.634 0.036
H7 -1.321 1.787 -0.049
H8 1.321 -1.787 -0.049
H9 0.020 2.528 0.561
H10 -0.020 -2.528 0.561

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33761.40812.44091.09132.10802.02632.58522.02813.1811
C21.33762.44091.40812.10801.09132.58522.02633.18112.0281
N31.40812.44093.74292.10442.71251.01243.98341.01254.4341
N42.44091.40813.74292.71252.10443.98341.01244.43411.0125
H51.09132.10802.10442.71253.07892.95922.42442.40303.5074
H62.10801.09132.71252.10443.07892.42442.95923.50742.4030
H72.02632.58521.01243.98342.95922.42444.44531.64934.5485
H82.58522.02633.98341.01242.42442.95924.44534.54851.6493
H92.02813.18111.01254.43412.40303.50741.64934.54855.0567
H103.18112.02814.43411.01253.50742.40304.54851.64935.0567

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.472 C1 C2 H6 120.085
C1 N3 H7 112.650 C1 N3 H9 112.805
C2 C1 N3 125.472 C2 C1 H5 120.085
C2 N4 H8 112.650 C2 N4 H10 112.805
N3 C1 H5 114.099 N4 C2 H6 114.099
H7 N3 H9 109.082 H8 N4 H10 109.082
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.863      
2 C 0.863      
3 N -0.211      
4 N -0.211      
5 H -0.542      
6 H -0.542      
7 H -0.059      
8 H -0.059      
9 H -0.051      
10 H -0.051      


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 2.015 2.015
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.967 -1.368 0.000
y -1.368 -23.319 0.000
z 0.000 0.000 -28.752
Traceless
 xyz
x 5.069 -1.368 0.000
y -1.368 1.541 0.000
z 0.000 0.000 -6.609
Polar
3z2-r2-13.219
x2-y22.352
xy-1.368
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.273 0.017 0.000
y 0.017 10.048 0.000
z 0.000 0.000 5.191


<r2> (average value of r2) Å2
<r2> 97.829
(<r2>)1/2 9.891