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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: HF/6-31G**

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/6-31G**
 hartrees
Energy at 0K-188.100897
Energy at 298.15K 
HF Energy-188.100897
Nuclear repulsion energy118.399015
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/6-31G**
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 3854 3479 1.47 110.27 0.73 0.85
2 A 3754 3388 4.02 232.38 0.05 0.09
3 A 3318 2995 0.05 145.55 0.31 0.47
4 A 1936 1748 0.05 55.68 0.22 0.35
5 A 1789 1615 29.14 7.78 0.74 0.85
6 A 1456 1314 0.78 19.88 0.38 0.55
7 A 1382 1247 0.01 17.05 0.65 0.79
8 A 1118 1009 0.15 8.96 0.42 0.59
9 A 1061 957 62.11 0.44 0.51 0.67
10 A 888 802 184.32 5.13 0.33 0.49
11 A 594 537 1.50 7.35 0.36 0.52
12 A 333 301 1.02 4.33 0.62 0.76
13 A 259 234 20.15 2.12 0.75 0.86
14 B 3854 3479 5.63 36.93 0.75 0.86
15 B 3753 3388 1.30 57.52 0.75 0.86
16 B 3319 2995 59.43 0.05 0.75 0.86
17 B 1800 1624 64.89 6.45 0.75 0.86
18 B 1515 1367 7.90 0.88 0.75 0.86
19 B 1244 1123 110.68 0.41 0.75 0.86
20 B 1220 1101 0.14 1.23 0.75 0.86
21 B 940 849 104.71 20.26 0.75 0.86
22 B 816 736 347.36 0.27 0.75 0.86
23 B 355 320 23.36 0.37 0.75 0.86
24 B 241 217 135.73 0.12 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 20399.2 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 18412.3 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 HF/6-31G**
ABC
1.47603 0.13380 0.12452

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.310 0.582 0.016
C2 -0.310 -0.582 0.016
N3 -0.310 1.845 -0.093
N4 0.310 -1.845 -0.093
H5 1.388 0.625 0.018
H6 -1.388 -0.625 0.018
H7 -1.307 1.787 -0.080
H8 1.307 -1.787 -0.080
H9 -0.008 2.479 0.618
H10 0.008 -2.479 0.618

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.31971.41062.42971.07862.08322.01872.57272.01483.1344
C21.31972.42971.41062.08321.07862.57272.01873.13442.0148
N31.41062.42973.74132.09372.69660.99873.97570.99944.3931
N42.42971.41063.74132.69662.09373.97570.99874.39310.9994
H51.07862.08322.09372.69663.04382.93652.41522.39733.4487
H62.08321.07862.69662.09373.04382.41522.93653.44872.3973
H72.01872.57270.99873.97572.93652.41524.42821.62874.5184
H82.57272.01873.97570.99872.41522.93654.42824.51841.6287
H92.01483.13440.99944.39312.39733.44871.62874.51844.9574
H103.13442.01484.39310.99943.44872.39734.51841.62874.9574

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.693 C1 C2 H6 120.262
C1 N3 H7 112.721 C1 N3 H9 112.328
C2 C1 N3 125.693 C2 C1 H5 120.262
C2 N4 H8 112.721 C2 N4 H10 112.328
N3 C1 H5 113.854 N4 C2 H6 113.854
H7 N3 H9 109.201 H8 N4 H10 109.201
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.044      
2 C 0.044      
3 N -0.713      
4 N -0.713      
5 H 0.121      
6 H 0.121      
7 H 0.274      
8 H 0.274      
9 H 0.274      
10 H 0.274      


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 2.470 2.470
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.316 -1.731 0.000
y -1.731 -24.099 0.000
z 0.000 0.000 -27.682
Traceless
 xyz
x 5.574 -1.731 0.000
y -1.731 -0.101 0.000
z 0.000 0.000 -5.474
Polar
3z2-r2-10.948
x2-y23.783
xy-1.731
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.881 0.378 0.000
y 0.378 7.607 0.000
z 0.000 0.000 2.639


<r2> (average value of r2) Å2
<r2> 96.852
(<r2>)1/2 9.841