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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/cc-pVDZ
 hartrees
Energy at 0K-189.065516
Energy at 298.15K 
HF Energy-189.065516
Nuclear repulsion energy116.588656
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-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 3473 3453 0.27      
2 A 3374 3354 0.54      
3 A 3064 3046 0.03      
4 A 1713 1703 0.50      
5 A 1570 1561 16.78      
6 A 1277 1270 0.53      
7 A 1256 1248 0.01      
8 A 1018 1012 0.58      
9 A 884 879 63.83      
10 A 811 806 94.84      
11 A 541 538 0.84      
12 A 336 334 0.55      
13 A 250 248 17.27      
14 B 3471 3451 1.37      
15 B 3371 3351 5.25      
16 B 3066 3048 53.59      
17 B 1577 1568 31.09      
18 B 1338 1330 13.84      
19 B 1176 1169 84.49      
20 B 1093 1086 1.04      
21 B 765 761 292.81      
22 B 735 730 125.93      
23 B 355 353 51.70      
24 B 254 253 73.63      

Unscaled Zero Point Vibrational Energy (zpe) 18382.9 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 18276.3 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/cc-pVDZ
ABC
1.40566 0.13068 0.12155

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.601 0.045
C2 -0.313 -0.601 0.045
N3 -0.313 1.862 -0.124
N4 0.313 -1.862 -0.124
H5 1.417 0.646 0.050
H6 -1.417 -0.646 0.050
H7 -1.335 1.784 -0.038
H8 1.335 -1.784 -0.038
H9 0.003 2.538 0.586
H10 -0.003 -2.538 0.586

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.35471.41752.46831.10542.13242.02972.59552.03463.2004
C21.35472.46831.41752.13241.10542.59552.02973.20042.0346
N31.41752.46833.77562.12162.74561.02874.00121.02954.4669
N42.46831.41753.77562.74562.12164.00121.02874.46691.0295
H51.10542.13242.12162.74563.11492.97922.43242.42173.5269
H62.13241.10542.74562.12163.11492.43242.97923.52692.4217
H72.02972.59551.02874.00122.97922.43244.45541.65754.5644
H82.59552.02974.00121.02872.43242.97924.45544.56441.6575
H92.03463.20041.02954.46692.42173.52691.65754.56445.0753
H103.20042.03464.46691.02953.52692.42174.56441.65755.0753

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.823 C1 C2 H6 119.829
C1 N3 H7 111.151 C1 N3 H9 111.509
C2 C1 N3 125.823 C2 C1 H5 119.829
C2 N4 H8 111.151 C2 N4 H10 111.509
N3 C1 H5 113.908 N4 C2 H6 113.908
H7 N3 H9 107.287 H8 N4 H10 107.287
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.045      
2 C -0.045      
3 N -0.112      
4 N -0.112      
5 H -0.008      
6 H -0.008      
7 H 0.075      
8 H 0.075      
9 H 0.091      
10 H 0.091      


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 2.056 2.056
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.003 -1.829 0.000
y -1.829 -21.827 0.000
z 0.000 0.000 -27.739
Traceless
 xyz
x 3.780 -1.829 0.000
y -1.829 2.544 0.000
z 0.000 0.000 -6.324
Polar
3z2-r2-12.648
x2-y20.824
xy-1.829
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.636 -0.009 0.000
y -0.009 9.176 0.000
z 0.000 0.000 3.084


<r2> (average value of r2) Å2
<r2> 98.678
(<r2>)1/2 9.934