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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: HF/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-188.123929
Energy at 298.15K 
HF Energy-188.123929
Nuclear repulsion energy118.074835
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/aug-cc-pVDZ
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 3830 3487 3.12 78.82 0.74 0.85
2 A 3735 3401 0.99 245.60 0.04 0.08
3 A 3309 3013 0.01 145.40 0.30 0.46
4 A 1909 1738 0.26 94.34 0.12 0.21
5 A 1764 1606 22.73 5.09 0.61 0.76
6 A 1438 1309 0.67 28.16 0.25 0.40
7 A 1369 1247 0.04 12.68 0.58 0.74
8 A 1106 1007 0.37 11.47 0.11 0.20
9 A 1040 947 78.85 0.74 0.38 0.55
10 A 875 796 129.08 2.45 0.41 0.59
11 A 587 535 1.62 8.89 0.17 0.30
12 A 328 298 4.59 2.02 0.35 0.52
13 A 255 232 14.03 0.38 0.74 0.85
14 B 3829 3487 11.52 28.31 0.75 0.86
15 B 3734 3400 7.81 47.44 0.75 0.86
16 B 3311 3015 48.46 0.01 0.75 0.86
17 B 1774 1615 60.81 2.19 0.75 0.86
18 B 1497 1363 7.97 0.24 0.75 0.86
19 B 1229 1119 132.22 0.05 0.75 0.86
20 B 1210 1102 0.01 0.68 0.75 0.86
21 B 936 853 88.61 14.37 0.75 0.86
22 B 813 740 265.59 0.01 0.75 0.86
23 B 351 319 18.64 0.16 0.75 0.86
24 B 246 224 120.41 0.22 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 20235.5 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 18426.4 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/aug-cc-pVDZ
ABC
1.46525 0.13318 0.12387

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.311 0.585 0.017
C2 -0.311 -0.585 0.017
N3 -0.311 1.849 -0.095
N4 0.311 -1.849 -0.095
H5 1.394 0.626 0.018
H6 -1.394 -0.626 0.018
H7 -1.310 1.791 -0.063
H8 1.310 -1.791 -0.063
H9 0.000 2.488 0.610
H10 -0.000 -2.488 0.610

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.32461.41392.43591.08352.09162.02322.57852.01813.1450
C21.32462.43591.41392.09161.08352.57852.02323.14502.0181
N31.41392.43593.74972.10162.70371.00123.98511.00174.4051
N42.43591.41393.74972.70372.10163.98511.00124.40511.0017
H51.08352.09162.10162.70373.05662.94602.42012.40023.4633
H62.09161.08352.70372.10163.05662.42012.94603.46332.4002
H72.02322.57851.00123.98512.94602.42014.43881.63024.5259
H82.57852.02323.98511.00122.42012.94604.43884.52591.6302
H92.01813.14501.00174.40512.40023.46331.63024.52594.9768
H103.14502.01814.40511.00173.46332.40024.52591.63024.9768

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.592 C1 C2 H6 120.248
C1 N3 H7 112.680 C1 N3 H9 112.202
C2 C1 N3 125.592 C2 C1 H5 120.248
C2 N4 H8 112.680 C2 N4 H10 112.202
N3 C1 H5 113.953 N4 C2 H6 113.953
H7 N3 H9 108.960 H8 N4 H10 108.960
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.811      
2 C 0.811      
3 N -0.436      
4 N -0.436      
5 H -0.333      
6 H -0.333      
7 H -0.026      
8 H -0.026      
9 H -0.016      
10 H -0.016      


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 2.207 2.207
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.816 -1.408 0.000
y -1.408 -24.603 0.000
z 0.000 0.000 -28.676
Traceless
 xyz
x 5.824 -1.408 0.000
y -1.408 0.143 0.000
z 0.000 0.000 -5.967
Polar
3z2-r2-11.933
x2-y23.787
xy-1.408
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.843 0.293 0.000
y 0.293 8.964 0.000
z 0.000 0.000 4.895


<r2> (average value of r2) Å2
<r2> 97.690
(<r2>)1/2 9.884