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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: TPSSh/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 TPSSh/6-31G
 hartrees
Energy at 0K-189.242561
Energy at 298.15K 
HF Energy-189.242561
Nuclear repulsion energy116.975951
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 TPSSh/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 3690 3551 1.49      
2 A 3565 3430 0.54      
3 A 3169 3049 0.22      
4 A 1761 1694 1.27      
5 A 1704 1640 12.95      
6 A 1364 1313 1.40      
7 A 1291 1243 0.79      
8 A 1018 979 0.30      
9 A 942 906 76.37      
10 A 568 546 83.75      
11 A 513 494 378.27      
12 A 355 341 10.85      
13 A 237 228 27.97      
14 B 3690 3550 3.75      
15 B 3563 3428 4.45      
16 B 3173 3052 71.51      
17 B 1708 1644 83.39      
18 B 1410 1357 6.81      
19 B 1206 1160 163.23      
20 B 1115 1073 5.16      
21 B 797 767 22.75      
22 B 464 446 273.00      
23 B 331 318 23.96      
24 B 204 196 196.29      

Unscaled Zero Point Vibrational Energy (zpe) 18919.0 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 18202.0 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 TPSSh/6-31G
ABC
1.45487 0.13085 0.12138

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.317 0.596 0.052
C2 -0.317 -0.596 0.052
N3 -0.317 1.851 -0.087
N4 0.317 -1.851 -0.087
H5 1.403 0.647 0.060
H6 -1.403 -0.647 0.060
H7 -1.320 1.861 -0.211
H8 1.320 -1.861 -0.211
H9 0.050 2.626 0.447
H10 -0.050 -2.626 0.447

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.35051.41192.45091.08802.12242.08462.66702.08533.2675
C21.35052.45091.41192.12241.08802.66702.08463.26752.0853
N31.41192.45093.75512.10472.72771.01074.05811.01054.5166
N42.45091.41193.75512.72772.10474.05811.01074.51661.0105
H51.08802.12242.10472.72773.09072.99382.52382.42893.6022
H62.12241.08802.72772.10473.09072.52382.99383.60222.4289
H72.08462.66701.01074.05812.99382.52384.56261.70154.7096
H82.66702.08464.05811.01072.52382.99384.56264.70961.7015
H92.08533.26751.01054.51662.42893.60221.70154.70965.2536
H103.26752.08534.51661.01053.60222.42894.70961.70155.2536

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.045 C1 C2 H6 120.628
C1 N3 H7 117.789 C1 N3 H9 117.862
C2 C1 N3 125.045 C2 C1 H5 120.628
C2 N4 H8 117.789 C2 N4 H10 117.862
N3 C1 H5 114.057 N4 C2 H6 114.057
H7 N3 H9 114.670 H8 N4 H10 114.670
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.020      
2 C 0.020      
3 N -0.763      
4 N -0.763      
5 H 0.133      
6 H 0.133      
7 H 0.306      
8 H 0.306      
9 H 0.304      
10 H 0.304      


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 1.743 1.743
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.938 0.140 0.000
y 0.140 8.660 0.000
z 0.000 0.000 2.159


<r2> (average value of r2) Å2
<r2> 98.652
(<r2>)1/2 9.932