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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: PBEPBEultrafine/TZVP

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/TZVP
 hartrees
Energy at 0K-189.128167
Energy at 298.15K 
HF Energy-189.128167
Nuclear repulsion energy117.042858
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/TZVP
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 3519 3479 1.19      
2 A 3420 3381 0.71      
3 A 3064 3029 0.09      
4 A 1696 1677 1.21      
5 A 1596 1578 22.43      
6 A 1293 1279 0.35      
7 A 1248 1234 0.06      
8 A 1008 996 0.53      
9 A 882 872 70.84      
10 A 757 749 155.01      
11 A 541 535 2.12      
12 A 332 329 2.43      
13 A 240 237 20.68      
14 B 3518 3478 2.59      
15 B 3418 3379 0.48      
16 B 3069 3034 50.81      
17 B 1602 1584 54.88      
18 B 1349 1334 8.53      
19 B 1157 1144 106.84      
20 B 1095 1082 1.53      
21 B 757 748 58.34      
22 B 699 691 349.99      
23 B 345 341 44.27      
24 B 247 245 95.36      

Unscaled Zero Point Vibrational Energy (zpe) 18426.3 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 18216.3 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 PBEPBEultrafine/TZVP
ABC
1.42571 0.13150 0.12226

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.596 0.051
C2 -0.313 -0.596 0.051
N3 -0.313 1.854 -0.118
N4 0.313 -1.854 -0.118
H5 1.407 0.642 0.056
H6 -1.407 -0.642 0.056
H7 -1.331 1.796 -0.087
H8 1.331 -1.796 -0.087
H9 0.008 2.555 0.551
H10 -0.008 -2.555 0.551

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34651.41442.45561.09572.11952.03982.60402.04383.2061
C21.34652.45561.41442.11951.09572.60402.03983.20612.0438
N31.41442.45563.75952.11112.73071.02014.00311.02044.4688
N42.45561.41443.75952.73072.11114.00311.02014.46881.0204
H51.09572.11952.11112.73073.09402.97512.44402.42083.5308
H62.11951.09572.73072.11113.09402.44402.97513.53082.4208
H72.03982.60401.02014.00312.97512.44404.47141.66564.5921
H82.60402.03984.00311.02012.44402.97514.47144.59211.6656
H92.04383.20611.02044.46882.42083.53081.66564.59215.1090
H103.20612.04384.46881.02043.53082.42084.59211.66565.1090

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.581 C1 C2 H6 120.073
C1 N3 H7 112.828 C1 N3 H9 113.157
C2 C1 N3 125.581 C2 C1 H5 120.073
C2 N4 H8 112.828 C2 N4 H10 113.157
N3 C1 H5 113.896 N4 C2 H6 113.896
H7 N3 H9 109.422 H8 N4 H10 109.422
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.125      
2 C -0.125      
3 N -0.375      
4 N -0.375      
5 H 0.095      
6 H 0.095      
7 H 0.196      
8 H 0.196      
9 H 0.209      
10 H 0.209      


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 2.032 2.032
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.963 -1.810 0.000
y -1.810 -22.430 0.000
z 0.000 0.000 -29.066
Traceless
 xyz
x 4.785 -1.810 0.000
y -1.810 2.584 0.000
z 0.000 0.000 -7.370
Polar
3z2-r2-14.739
x2-y21.467
xy-1.810
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.915 0.066 0.000
y 0.066 9.827 0.000
z 0.000 0.000 4.328


<r2> (average value of r2) Å2
<r2> 98.680
(<r2>)1/2 9.934