return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B97D3/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 B97D3/aug-cc-pVDZ
 hartrees
Energy at 0K-189.213842
Energy at 298.15K 
HF Energy-189.213842
Nuclear repulsion energy116.749401
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 B97D3/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 3522 3522 0.89      
2 A 3419 3419 0.23      
3 A 3092 3092 0.08      
4 A 1703 1703 0.48      
5 A 1595 1595 16.42      
6 A 1299 1299 0.52      
7 A 1249 1249 0.01      
8 A 1011 1011 0.26      
9 A 891 891 70.50      
10 A 776 776 109.80      
11 A 542 542 1.24      
12 A 322 322 2.31      
13 A 239 239 16.07      
14 B 3521 3521 2.37      
15 B 3417 3417 1.70      
16 B 3096 3096 57.05      
17 B 1602 1602 41.09      
18 B 1356 1356 10.39      
19 B 1147 1147 113.94      
20 B 1101 1101 2.03      
21 B 768 768 93.46      
22 B 721 721 271.02      
23 B 345 345 35.65      
24 B 251 251 85.74      

Unscaled Zero Point Vibrational Energy (zpe) 18493.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18493.1 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 B97D3/aug-cc-pVDZ
ABC
1.41599 0.13082 0.12158

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.315 0.597 0.045
C2 -0.315 -0.597 0.045
N3 -0.315 1.860 -0.118
N4 0.315 -1.860 -0.118
H5 1.412 0.645 0.046
H6 -1.412 -0.645 0.046
H7 -1.331 1.796 -0.050
H8 1.331 -1.796 -0.050
H9 0.013 2.549 0.559
H10 -0.013 -2.549 0.559

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.35101.42082.46271.09762.12772.03862.60162.04113.2052
C21.35102.46271.42082.12771.09762.60162.03863.20522.0411
N31.42082.46273.77322.11822.73941.01974.01021.02014.4711
N42.46271.42083.77322.73942.11824.01021.01974.47111.0201
H51.09762.12772.11822.73943.10462.97612.44422.41803.5351
H62.12771.09762.73942.11823.10462.44422.97613.53512.4180
H72.03862.60161.01974.01022.97612.44424.47071.65644.5813
H82.60162.03864.01021.01972.44422.97614.47074.58131.6564
H92.04113.20521.02014.47112.41803.53511.65644.58135.0985
H103.20522.04114.47111.02013.53512.41804.58131.65645.0985

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.354 C1 C2 H6 120.322
C1 N3 H7 112.252 C1 N3 H9 112.444
C2 C1 N3 125.354 C2 C1 H5 120.322
C2 N4 H8 112.252 C2 N4 H10 112.444
N3 C1 H5 113.896 N4 C2 H6 113.896
H7 N3 H9 108.584 H8 N4 H10 108.584
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.871      
2 C 0.871      
3 N -0.207      
4 N -0.207      
5 H -0.568      
6 H -0.568      
7 H -0.050      
8 H -0.050      
9 H -0.047      
10 H -0.047      


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 1.952 1.952
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.296 -1.423 0.000
y -1.423 -23.470 0.000
z 0.000 0.000 -28.989
Traceless
 xyz
x 4.933 -1.423 0.000
y -1.423 1.673 0.000
z 0.000 0.000 -6.606
Polar
3z2-r2-13.212
x2-y22.174
xy-1.423
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.599 -0.082 0.000
y -0.082 10.776 0.000
z 0.000 0.000 5.536


<r2> (average value of r2) Å2
<r2> 99.321
(<r2>)1/2 9.966