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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: TPSSh/daug-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 TPSSh/daug-cc-pVDZ
 hartrees
Energy at 0K-189.334898
Energy at 298.15K 
HF Energy-189.334898
Nuclear repulsion energy117.019560
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/daug-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 3558 3558 0.84      
2 A 3461 3461 0.09      
3 A 3145 3145 0.06      
4 A 1742 1742 0.43      
5 A 1630 1630 18.46      
6 A 1328 1328 0.39      
7 A 1273 1273 0.01      
8 A 1025 1025 0.10      
9 A 929 929 67.99      
10 A 798 798 111.15      
11 A 543 543 1.43      
12 A 323 323 2.57      
13 A 245 245 15.01      
14 B 3558 3558 2.51      
15 B 3459 3459 1.01      
16 B 3148 3148 51.35      
17 B 1638 1638 42.11      
18 B 1383 1383 10.81      
19 B 1166 1166 113.01      
20 B 1114 1114 2.31      
21 B 797 797 86.04      
22 B 741 741 281.35      
23 B 343 343 42.27      
24 B 246 246 80.44      

Unscaled Zero Point Vibrational Energy (zpe) 18795.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18795.3 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 TPSSh/daug-cc-pVDZ
ABC
1.42359 0.13144 0.12214

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.315 0.594 0.041
C2 -0.315 -0.594 0.041
N3 -0.315 1.856 -0.115
N4 0.315 -1.856 -0.115
H5 1.407 0.643 0.041
H6 -1.407 -0.643 0.041
H7 -1.329 1.792 -0.042
H8 1.329 -1.792 -0.042
H9 0.015 2.540 0.564
H10 -0.015 -2.540 0.564

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34521.41942.45571.09282.12052.03552.59392.03693.1945
C21.34522.45571.41942.12051.09282.59392.03553.19452.0369
N31.41942.45573.76602.11212.73231.01834.00231.01874.4585
N42.45571.41943.76602.73232.11214.00231.01834.45851.0187
H51.09282.12052.11212.73233.09382.96802.43802.40973.5252
H62.12051.09282.73232.11213.09382.43802.96803.52522.4097
H72.03552.59391.01834.00232.96802.43804.46171.65304.5670
H82.59392.03554.00231.01832.43802.96804.46174.56701.6530
H92.03693.19451.01874.45852.40973.52521.65304.56705.0797
H103.19452.03694.45851.01873.52522.40974.56701.65305.0797

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.288 C1 C2 H6 120.510
C1 N3 H7 112.190 C1 N3 H9 112.283
C2 C1 N3 125.288 C2 C1 H5 120.510
C2 N4 H8 112.190 C2 N4 H10 112.283
N3 C1 H5 113.802 N4 C2 H6 113.802
H7 N3 H9 108.481 H8 N4 H10 108.481
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.434      
2 C 0.434      
3 N 0.277      
4 N 0.277      
5 H -0.713      
6 H -0.713      
7 H -0.040      
8 H -0.040      
9 H 0.042      
10 H 0.042      


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 2.012 2.012
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 6.510 -0.082 0.000
y -0.082 10.563 0.000
z 0.000 0.000 5.437


<r2> (average value of r2) Å2
<r2> 98.864
(<r2>)1/2 9.943