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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G**
 hartrees
Energy at 0K-189.062539
Energy at 298.15K 
HF Energy-189.062539
Nuclear repulsion energy116.826197
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/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 3520 3472 0.23      
2 A 3413 3366 0.41      
3 A 3080 3038 0.14      
4 A 1719 1695 0.42      
5 A 1597 1575 21.88      
6 A 1295 1277 0.68      
7 A 1259 1242 0.00      
8 A 1018 1004 0.75      
9 A 896 884 54.04      
10 A 799 788 139.04      
11 A 543 536 1.19      
12 A 338 333 0.01      
13 A 247 244 20.13      
14 B 3519 3471 1.60      
15 B 3410 3363 3.42      
16 B 3082 3040 54.94      
17 B 1605 1583 39.70      
18 B 1354 1336 11.12      
19 B 1176 1160 77.11      
20 B 1097 1082 0.79      
21 B 757 747 208.96      
22 B 726 716 242.74      
23 B 354 350 56.20      
24 B 254 250 82.15      

Unscaled Zero Point Vibrational Energy (zpe) 18529.7 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 18275.8 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/6-31G**
ABC
1.41406 0.13106 0.12190

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.599 0.047
C2 -0.313 -0.599 0.047
N3 -0.313 1.859 -0.121
N4 0.313 -1.859 -0.121
H5 1.411 0.646 0.051
H6 -1.411 -0.646 0.051
H7 -1.332 1.782 -0.063
H8 1.332 -1.782 -0.063
H9 -0.003 2.540 0.578
H10 0.003 -2.540 0.578

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.35181.41712.46321.09822.12632.02992.59242.03663.1981
C21.35182.46321.41712.12631.09822.59242.02993.19812.0366
N31.41712.46323.76972.11492.73951.02313.99601.02394.4645
N42.46321.41713.76972.73952.11493.99601.02314.46451.0239
H51.09822.12632.11492.73953.10272.97102.43212.42093.5222
H62.12631.09822.73952.11493.10272.43212.97103.52222.4209
H72.02992.59241.02313.99602.97102.43214.45041.65884.5685
H82.59242.02993.99601.02312.43212.97104.45044.56851.6588
H92.03663.19811.02394.46452.42093.52221.65884.56855.0791
H103.19812.03664.46451.02393.52222.42094.56851.65885.0791

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.626 C1 C2 H6 120.074
C1 N3 H7 111.569 C1 N3 H9 112.096
C2 C1 N3 125.626 C2 C1 H5 120.074
C2 N4 H8 111.569 C2 N4 H10 112.096
N3 C1 H5 113.855 N4 C2 H6 113.855
H7 N3 H9 108.267 H8 N4 H10 108.267
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.011      
2 C 0.011      
3 N -0.593      
4 N -0.593      
5 H 0.084      
6 H 0.084      
7 H 0.247      
8 H 0.247      
9 H 0.251      
10 H 0.251      


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 2.242 2.242
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.552 -1.937 0.000
y -1.937 -22.039 0.000
z 0.000 0.000 -27.752
Traceless
 xyz
x 4.343 -1.937 0.000
y -1.937 2.113 0.000
z 0.000 0.000 -6.457
Polar
3z2-r2-12.913
x2-y21.487
xy-1.937
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.370 -0.009 0.000
y -0.009 8.973 0.000
z 0.000 0.000 2.791


<r2> (average value of r2) Å2
<r2> 98.390
(<r2>)1/2 9.919