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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B2PLYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B2PLYP/TZVP
 hartrees
Energy at 0K-189.170100
Energy at 298.15K 
HF Energy-188.955314
Nuclear repulsion energy117.612632
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 B2PLYP/TZVP
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 3628 3463 1.79      
2 A 3530 3369 1.19      
3 A 3170 3026 0.06      
4 A 1751 1671 0.56      
5 A 1657 1581 24.69      
6 A 1349 1288 0.38      
7 A 1288 1229 0.00      
8 A 1039 992 0.72      
9 A 931 888 76.93      
10 A 809 772 155.12      
11 A 557 531 1.46      
12 A 323 308 2.80      
13 A 245 234 18.12      
14 B 3628 3462 4.51      
15 B 3529 3368 2.63      
16 B 3175 3030 46.11      
17 B 1664 1589 58.40      
18 B 1406 1341 6.34      
19 B 1174 1121 104.94      
20 B 1139 1087 1.43      
21 B 800 763 124.64      
22 B 748 714 291.61      
23 B 341 326 30.72      
24 B 247 236 107.40      

Unscaled Zero Point Vibrational Energy (zpe) 19064.0 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 18194.7 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 B2PLYP/TZVP
ABC
1.44418 0.13256 0.12324

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.590 0.041
C2 -0.313 -0.590 0.041
N3 -0.313 1.849 -0.111
N4 0.313 -1.849 -0.111
H5 1.397 0.634 0.041
H6 -1.397 -0.634 0.041
H7 -1.322 1.789 -0.077
H8 1.322 -1.789 -0.077
H9 0.005 2.528 0.567
H10 -0.005 -2.528 0.567

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33571.41432.44341.08502.10312.03122.58662.03223.1783
C21.33572.44341.41432.10311.08502.58662.03123.17832.0322
N31.41432.44343.75042.10362.71331.01113.98871.01104.4400
N42.44341.41433.75042.71332.10363.98871.01114.44001.0110
H51.08502.10312.10362.71333.06862.95682.42692.40913.4989
H62.10311.08502.71332.10363.06862.42692.95683.49892.4091
H72.03122.58661.01113.98872.95682.42694.44901.64994.5595
H82.58662.03123.98871.01112.42692.95684.44904.55951.6499
H92.03223.17831.01104.44002.40913.49891.64994.55955.0566
H103.17832.03224.44001.01103.49892.40914.55951.64995.0566

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.348 C1 C2 H6 120.288
C1 N3 H7 112.684 C1 N3 H9 112.780
C2 C1 N3 125.348 C2 C1 H5 120.288
C2 N4 H8 112.684 C2 N4 H10 112.780
N3 C1 H5 113.987 N4 C2 H6 113.987
H7 N3 H9 109.360 H8 N4 H10 109.360
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.102      
2 C -0.102      
3 N -0.391      
4 N -0.391      
5 H 0.094      
6 H 0.094      
7 H 0.192      
8 H 0.192      
9 H 0.206      
10 H 0.206      


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 2.172 2.172
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.964 -1.630 0.000
y -1.630 -23.457 0.000
z 0.000 0.000 -28.986
Traceless
 xyz
x 5.258 -1.630 0.000
y -1.630 1.518 0.000
z 0.000 0.000 -6.776
Polar
3z2-r2-13.552
x2-y22.493
xy-1.630
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.603 0.203 0.000
y 0.203 9.069 0.000
z 0.000 0.000 4.190


<r2> (average value of r2) Å2
<r2> 98.104
(<r2>)1/2 9.905