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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B2PLYP/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-189.215225
Energy at 298.15K 
HF Energy-188.968745
Nuclear repulsion energy117.709195
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/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3625 3625 2.34      
2 A 3530 3530 0.82      
3 A 3167 3167 0.05      
4 A 1749 1749 0.31      
5 A 1650 1650 19.63      
6 A 1344 1344 0.59      
7 A 1287 1287 0.00      
8 A 1038 1038 0.43      
9 A 940 940 70.81      
10 A 801 801 131.23      
11 A 554 554 1.39      
12 A 327 327 2.63      
13 A 245 245 16.16      
14 B 3625 3625 6.57      
15 B 3528 3528 3.34      
16 B 3171 3171 42.44      
17 B 1657 1657 45.59      
18 B 1400 1400 9.03      
19 B 1175 1175 105.97      
20 B 1134 1134 1.27      
21 B 816 816 89.36      
22 B 742 742 306.56      
23 B 344 344 34.66      
24 B 250 250 97.44      

Unscaled Zero Point Vibrational Energy (zpe) 19048.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19048.5 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 B2PLYP/Def2TZVPP
ABC
1.44800 0.13274 0.12339

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.590 0.036
C2 -0.313 -0.590 0.036
N3 -0.313 1.848 -0.109
N4 0.313 -1.848 -0.109
H5 1.396 0.631 0.039
H6 -1.396 -0.631 0.039
H7 -1.320 1.787 -0.061
H8 1.320 -1.787 -0.061
H9 0.009 2.524 0.569
H10 -0.009 -2.524 0.569

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33541.41322.44231.08382.10072.02722.58282.02873.1750
C21.33542.44231.41322.10071.08382.58282.02723.17502.0287
N31.41322.44233.74902.10342.70981.00993.98521.00984.4345
N42.44231.41323.74902.70982.10343.98521.00994.43451.0098
H51.08382.10072.10342.70983.06462.95342.42132.40533.4943
H62.10071.08382.70982.10343.06462.42132.95343.49432.4053
H72.02722.58281.00993.98522.95342.42134.44291.64504.5491
H82.58282.02723.98521.00992.42132.95344.44294.54911.6450
H92.02873.17501.00984.43452.40533.49431.64504.54915.0473
H103.17502.02874.43451.00983.49432.40534.54911.64505.0473

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.360 C1 C2 H6 120.165
C1 N3 H7 112.502 C1 N3 H9 112.648
C2 C1 N3 125.360 C2 C1 H5 120.165
C2 N4 H8 112.502 C2 N4 H10 112.648
N3 C1 H5 114.133 N4 C2 H6 114.133
H7 N3 H9 109.068 H8 N4 H10 109.068
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.017      
2 C -0.017      
3 N -0.319      
4 N -0.319      
5 H 0.054      
6 H 0.054      
7 H 0.136      
8 H 0.136      
9 H 0.146      
10 H 0.146      


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 2.042 2.042
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.068 -1.487 0.000
y -1.487 -23.364 0.000
z 0.000 0.000 -28.685
Traceless
 xyz
x 4.957 -1.487 0.000
y -1.487 1.512 0.000
z 0.000 0.000 -6.469
Polar
3z2-r2-12.939
x2-y22.296
xy-1.487
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.849 0.086 0.000
y 0.086 9.318 0.000
z 0.000 0.000 4.446


<r2> (average value of r2) Å2
<r2> 97.909
(<r2>)1/2 9.895