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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: PBEPBEultrafine/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBEultrafine/cc-pVTZ
 hartrees
Energy at 0K-189.131519
Energy at 298.15K 
HF Energy-189.131519
Nuclear repulsion energy117.100787
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 PBEPBEultrafine/cc-pVTZ
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 3505 3480 0.93      
2 A 3410 3386 0.17      
3 A 3059 3038 0.03      
4 A 1696 1685 0.35      
5 A 1587 1576 17.90      
6 A 1289 1280 0.62      
7 A 1249 1240 0.00      
8 A 1008 1001 0.83      
9 A 885 879 69.67      
10 A 782 777 117.92      
11 A 539 536 1.27      
12 A 331 329 1.85      
13 A 240 238 17.00      
14 B 3504 3479 2.17      
15 B 3407 3384 0.95      
16 B 3064 3043 50.40      
17 B 1593 1582 40.98      
18 B 1347 1337 10.60      
19 B 1156 1148 90.98      
20 B 1092 1085 1.30      
21 B 768 763 118.02      
22 B 718 713 296.49      
23 B 347 345 42.41      
24 B 247 245 80.55      

Unscaled Zero Point Vibrational Energy (zpe) 18410.9 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 18283.9 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 PBEPBEultrafine/cc-pVTZ
ABC
1.42843 0.13157 0.12233

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.312 0.596 0.045
C2 -0.312 -0.596 0.045
N3 -0.312 1.855 -0.118
N4 0.312 -1.855 -0.118
H5 1.406 0.640 0.050
H6 -1.406 -0.640 0.050
H7 -1.328 1.790 -0.052
H8 1.328 -1.790 -0.052
H9 0.015 2.543 0.560
H10 -0.015 -2.543 0.560

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34511.41522.45591.09482.11652.03152.59452.03603.1974
C21.34512.45591.41522.11651.09482.59452.03153.19742.0360
N31.41522.45593.76192.11152.72901.02003.99741.02024.4598
N42.45591.41523.76192.72902.11153.99741.02004.45981.0202
H51.09482.11652.11152.72903.08992.96822.43292.41203.5230
H62.11651.09482.72902.11153.08992.43292.96823.52302.4120
H72.03152.59451.02003.99742.96822.43294.45761.65744.5687
H82.59452.03153.99741.02002.43292.96824.45764.56871.6574
H92.03603.19741.02024.45982.41203.52301.65744.56875.0863
H103.19742.03604.45981.02023.52302.41204.56871.65745.0863

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.659 C1 C2 H6 119.984
C1 N3 H7 112.050 C1 N3 H9 112.430
C2 C1 N3 125.659 C2 C1 H5 119.984
C2 N4 H8 112.050 C2 N4 H10 112.430
N3 C1 H5 113.934 N4 C2 H6 113.934
H7 N3 H9 108.658 H8 N4 H10 108.658
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.096      
2 C -0.096      
3 N -0.231      
4 N -0.231      
5 H 0.074      
6 H 0.074      
7 H 0.122      
8 H 0.122      
9 H 0.131      
10 H 0.131      


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 1.945 1.945
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.080 -1.599 0.000
y -1.599 -22.378 0.000
z 0.000 0.000 -28.424
Traceless
 xyz
x 4.320 -1.599 0.000
y -1.599 2.375 0.000
z 0.000 0.000 -6.695
Polar
3z2-r2-13.390
x2-y21.297
xy-1.599
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.061 -0.034 0.000
y -0.034 9.790 0.000
z 0.000 0.000 4.142


<r2> (average value of r2) Å2
<r2> 98.427
(<r2>)1/2 9.921