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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: TPSSh/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at TPSSh/6-311G*
 hartrees
Energy at 0K-189.338284
Energy at 298.15K 
HF Energy-189.338284
Nuclear repulsion energy117.283945
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 TPSSh/6-311G*
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 3564 3433 0.00      
2 A 3471 3344 0.11      
3 A 3132 3017 0.02      
4 A 1753 1689 0.61      
5 A 1694 1632 30.86      
6 A 1344 1294 0.64      
7 A 1293 1246 0.01      
8 A 1042 1003 1.55      
9 A 933 898 83.21      
10 A 847 815 135.81      
11 A 547 527 1.29      
12 A 338 325 0.32      
13 A 254 245 20.49      
14 B 3564 3433 1.75      
15 B 3469 3342 5.54      
16 B 3135 3020 66.21      
17 B 1707 1644 50.70      
18 B 1408 1356 8.09      
19 B 1174 1131 79.26      
20 B 1139 1097 1.75      
21 B 800 771 364.13      
22 B 766 738 127.89      
23 B 353 340 56.76      
24 B 250 241 89.57      

Unscaled Zero Point Vibrational Energy (zpe) 18988.3 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 18289.5 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 TPSSh/6-311G*
ABC
1.43295 0.13177 0.12262

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.312 0.593 0.046
C2 -0.312 -0.593 0.046
N3 -0.312 1.855 -0.118
N4 0.312 -1.855 -0.118
H5 1.400 0.643 0.046
H6 -1.400 -0.643 0.046
H7 -1.324 1.785 -0.074
H8 1.324 -1.785 -0.074
H9 -0.004 2.526 0.579
H10 0.004 -2.526 0.579

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34071.41732.45351.08912.11202.02782.58722.03003.1797
C21.34072.45351.41732.11201.08912.58722.02783.17972.0300
N31.41732.45353.76192.10412.72951.01523.99091.01584.4476
N42.45351.41733.76192.72952.10413.99091.01524.44761.0158
H51.08912.11202.10412.72953.08152.95622.43212.40863.5043
H62.11201.08912.72952.10413.08152.43212.95623.50432.4086
H72.02782.58721.01523.99092.95622.43214.44471.64914.5581
H82.58722.02783.99091.01522.43212.95624.44474.55811.6491
H92.03003.17971.01584.44762.40863.50431.64914.55815.0528
H103.17972.03004.44761.01583.50432.40864.55811.64915.0528

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.632 C1 C2 H6 120.385
C1 N3 H7 111.882 C1 N3 H9 112.034
C2 C1 N3 125.632 C2 C1 H5 120.385
C2 N4 H8 111.882 C2 N4 H10 112.034
N3 C1 H5 113.532 N4 C2 H6 113.532
H7 N3 H9 108.571 H8 N4 H10 108.571
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.070      
2 C -0.070      
3 N -0.743      
4 N -0.743      
5 H 0.184      
6 H 0.184      
7 H 0.316      
8 H 0.316      
9 H 0.314      
10 H 0.314      


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 2.318 2.318
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.413 0.126 0.000
y 0.126 8.893 0.000
z 0.000 0.000 3.315


<r2> (average value of r2) Å2
<r2> 98.109
(<r2>)1/2 9.905