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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B97D3/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B97D3/3-21G*
 hartrees
Energy at 0K-188.127219
Energy at 298.15K 
HF Energy-188.127219
Nuclear repulsion energy116.427707
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 B97D3/3-21G*
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 3493 3493 0.22      
2 A 3375 3375 0.11      
3 A 3092 3092 0.14      
4 A 1695 1695 0.45      
5 A 1676 1676 15.46      
6 A 1331 1331 1.79      
7 A 1264 1264 0.06      
8 A 1006 1006 1.12      
9 A 911 911 81.26      
10 A 617 617 274.51      
11 A 550 550 2.90      
12 A 356 356 0.37      
13 A 243 243 26.76      
14 B 3492 3492 1.50      
15 B 3372 3372 0.45      
16 B 3097 3097 62.64      
17 B 1681 1681 49.16      
18 B 1384 1384 2.65      
19 B 1151 1151 70.60      
20 B 1125 1125 10.01      
21 B 760 760 15.90      
22 B 544 544 411.49      
23 B 349 349 49.67      
24 B 226 226 183.57      

Unscaled Zero Point Vibrational Energy (zpe) 18395.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18395.3 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 B97D3/3-21G*
ABC
1.42618 0.12983 0.12068

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/3-21G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.315 0.598 0.050
C2 -0.315 -0.598 0.050
N3 -0.315 1.863 -0.105
N4 0.315 -1.863 -0.105
H5 1.407 0.639 0.059
H6 -1.407 -0.639 0.059
H7 -1.337 1.828 -0.160
H8 1.337 -1.828 -0.160
H9 0.014 2.594 0.533
H10 -0.014 -2.594 0.533

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.35181.42232.46591.09262.12082.07062.64082.07523.2445
C21.35182.46591.42232.12081.09262.64082.07063.24452.0752
N31.42232.46593.77942.11922.73541.02334.04471.02424.5122
N42.46591.42233.77942.73542.11924.04471.02334.51221.0242
H51.09262.12082.11922.73543.09122.99822.47872.44593.5634
H62.12081.09262.73542.11923.09122.47872.99823.56342.4459
H72.07062.64081.02334.04472.99822.47874.52961.70034.6672
H82.64082.07064.04471.02332.47872.99824.52964.66721.7003
H92.07523.24451.02424.51222.44593.56341.70034.66725.1873
H103.24452.07524.51221.02423.56342.44594.66721.70035.1873

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.458 C1 C2 H6 119.991
C1 N3 H7 114.718 C1 N3 H9 115.078
C2 C1 N3 125.458 C2 C1 H5 119.991
C2 N4 H8 114.718 C2 N4 H10 115.078
N3 C1 H5 114.206 N4 C2 H6 114.206
H7 N3 H9 112.289 H8 N4 H10 112.289
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.033      
2 C -0.033      
3 N -0.709      
4 N -0.709      
5 H 0.178      
6 H 0.178      
7 H 0.283      
8 H 0.283      
9 H 0.282      
10 H 0.282      


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 2.138 2.138
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.085 -2.421 0.000
y -2.421 -20.399 0.000
z 0.000 0.000 -27.973
Traceless
 xyz
x 4.101 -2.421 0.000
y -2.421 3.630 0.000
z 0.000 0.000 -7.731
Polar
3z2-r2-15.462
x2-y20.314
xy-2.421
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.787 0.031 0.000
y 0.031 8.518 0.000
z 0.000 0.000 1.867


<r2> (average value of r2) Å2
<r2> 99.028
(<r2>)1/2 9.951