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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: TPSSh/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 TPSSh/cc-pVDZ
 hartrees
Energy at 0K-189.313070
Energy at 298.15K 
HF Energy-189.313070
Nuclear repulsion energy116.955238
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/cc-pVDZ
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 3530 3432 0.16      
2 A 3435 3340 0.79      
3 A 3135 3049 0.02      
4 A 1755 1706 0.27      
5 A 1631 1586 19.06      
6 A 1324 1288 0.55      
7 A 1287 1252 0.03      
8 A 1039 1010 0.82      
9 A 932 907 65.86      
10 A 850 827 96.08      
11 A 547 532 0.72      
12 A 337 328 0.42      
13 A 257 250 15.99      
14 B 3529 3431 0.89      
15 B 3432 3338 4.00      
16 B 3136 3050 56.31      
17 B 1639 1594 29.89      
18 B 1384 1346 12.35      
19 B 1183 1151 86.69      
20 B 1123 1092 1.38      
21 B 804 782 338.68      
22 B 768 747 99.10      
23 B 356 346 54.29      
24 B 256 249 72.26      

Unscaled Zero Point Vibrational Energy (zpe) 18834.2 cm-1
Scaled (by 0.9724) Zero Point Vibrational Energy (zpe) 18314.4 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 TPSSh/cc-pVDZ
ABC
1.41802 0.13134 0.12218

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.596 0.039
C2 -0.313 -0.596 0.039
N3 -0.313 1.859 -0.120
N4 0.313 -1.859 -0.120
H5 1.409 0.643 0.041
H6 -1.409 -0.643 0.041
H7 -1.329 1.779 -0.031
H8 1.329 -1.779 -0.031
H9 0.003 2.522 0.593
H10 -0.003 -2.522 0.593

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34651.41832.45991.09692.12152.02502.58452.02813.1829
C21.34652.45991.41832.12151.09692.58452.02503.18292.0281
N31.41832.45993.76972.11382.73621.02273.99231.02394.4495
N42.45991.41833.76972.73622.11383.99231.02274.44951.0239
H51.09692.12152.11382.73623.09762.96502.42502.41083.5098
H62.12151.09692.73622.11383.09762.42502.96503.50982.4108
H72.02502.58451.02273.99232.96502.42504.44151.64794.5445
H82.58452.02503.99231.02272.42502.96504.44154.54451.6479
H92.02813.18291.02394.44952.41083.50981.64794.54455.0448
H103.18292.02814.44951.02393.50982.41084.54451.64795.0448

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.662 C1 C2 H6 120.170
C1 N3 H7 111.075 C1 N3 H9 111.262
C2 C1 N3 125.662 C2 C1 H5 120.170
C2 N4 H8 111.075 C2 N4 H10 111.262
N3 C1 H5 113.757 N4 C2 H6 113.757
H7 N3 H9 107.250 H8 N4 H10 107.250
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.033      
2 C -0.033      
3 N -0.150      
4 N -0.150      
5 H 0.006      
6 H 0.006      
7 H 0.082      
8 H 0.082      
9 H 0.096      
10 H 0.096      


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 2.133 2.133
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 5.467 0.069 0.000
y 0.069 8.847 0.000
z 0.000 0.000 3.047


<r2> (average value of r2) Å2
<r2> 98.195
(<r2>)1/2 9.909