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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: HF/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/6-311G*
 hartrees
Energy at 0K-188.125402
Energy at 298.15K 
HF Energy-188.125402
Nuclear repulsion energy118.359931
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 HF/6-311G*
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 3841 3474 0.51 107.43 0.74 0.85
2 A 3755 3396 1.79 218.92 0.05 0.10
3 A 3307 2991 0.00 155.54 0.33 0.50
4 A 1924 1740 0.45 55.06 0.19 0.33
5 A 1835 1659 34.03 10.50 0.57 0.73
6 A 1456 1317 0.87 16.09 0.38 0.55
7 A 1390 1257 0.00 21.99 0.58 0.73
8 A 1122 1014 0.08 9.68 0.34 0.51
9 A 1052 952 84.29 0.38 0.66 0.79
10 A 925 836 155.11 1.73 0.39 0.56
11 A 591 534 1.33 7.71 0.31 0.48
12 A 331 299 1.71 3.54 0.52 0.68
13 A 262 237 20.45 1.33 0.75 0.86
14 B 3841 3474 1.37 36.53 0.75 0.86
15 B 3755 3396 0.10 61.87 0.75 0.86
16 B 3309 2992 67.68 0.13 0.75 0.86
17 B 1849 1672 69.79 4.56 0.75 0.86
18 B 1523 1378 6.71 0.61 0.75 0.86
19 B 1239 1120 56.01 0.80 0.75 0.86
20 B 1232 1114 45.95 0.81 0.75 0.86
21 B 948 857 182.47 19.84 0.75 0.86
22 B 848 767 283.83 0.43 0.75 0.86
23 B 355 321 24.15 0.24 0.75 0.86
24 B 238 215 138.81 0.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 20462.0 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 18505.9 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 HF/6-311G*
ABC
1.47643 0.13352 0.12436

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.309 0.583 0.019
C2 -0.309 -0.583 0.019
N3 -0.309 1.848 -0.096
N4 0.309 -1.848 -0.096
H5 1.387 0.626 0.019
H6 -1.387 -0.626 0.019
H7 -1.305 1.786 -0.093
H8 1.305 -1.786 -0.093
H9 -0.022 2.471 0.628
H10 0.022 -2.471 0.628

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.31901.41282.43281.07862.08262.01652.57202.01193.1270
C21.31902.43281.41282.08261.07862.57202.01653.12702.0119
N31.41282.43283.74662.09372.70030.99723.97620.99784.3915
N42.43281.41283.74662.70032.09373.97620.99724.39150.9978
H51.07862.08262.09372.70033.04322.93332.41612.40053.4385
H62.08261.07862.70032.09373.04322.41612.93333.43852.4005
H72.01652.57200.99723.97622.93332.41614.42411.62284.5174
H82.57202.01653.97620.99722.41612.93334.42414.51741.6228
H92.01193.12700.99784.39152.40053.43851.62284.51744.9423
H103.12702.01194.39150.99783.43852.40054.51741.62284.9423

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.847 C1 C2 H6 120.255
C1 N3 H7 112.442 C1 N3 H9 111.996
C2 C1 N3 125.847 C2 C1 H5 120.255
C2 N4 H8 112.442 C2 N4 H10 111.996
N3 C1 H5 113.677 N4 C2 H6 113.677
H7 N3 H9 108.867 H8 N4 H10 108.867
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.047      
2 C -0.047      
3 N -0.837      
4 N -0.837      
5 H 0.210      
6 H 0.210      
7 H 0.340      
8 H 0.340      
9 H 0.334      
10 H 0.334      


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 2.474 2.474
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.400 -1.826 0.000
y -1.826 -24.405 0.000
z 0.000 0.000 -28.145
Traceless
 xyz
x 5.875 -1.826 0.000
y -1.826 -0.132 0.000
z 0.000 0.000 -5.742
Polar
3z2-r2-11.485
x2-y24.005
xy-1.826
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.006 0.436 0.000
y 0.436 7.737 0.000
z 0.000 0.000 3.151


<r2> (average value of r2) Å2
<r2> 97.106
(<r2>)1/2 9.854