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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G
 hartrees
Energy at 0K-189.011402
Energy at 298.15K 
HF Energy-189.011402
Nuclear repulsion energy117.552889
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 PBE1PBE/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 3777 3610 4.69      
2 A 3649 3488 0.87      
3 A 3189 3049 0.24      
4 A 1801 1722 2.51      
5 A 1708 1632 8.22      
6 A 1369 1308 1.43      
7 A 1307 1249 1.51      
8 A 1029 983 0.99      
9 A 949 907 80.19      
10 A 578 552 29.66      
11 A 459 439 490.71      
12 A 351 336 46.05      
13 A 233 223 31.14      
14 B 3776 3610 13.87      
15 B 3647 3486 21.09      
16 B 3193 3052 64.24      
17 B 1710 1635 116.27      
18 B 1415 1352 9.75      
19 B 1241 1187 184.80      
20 B 1117 1068 5.54      
21 B 826 790 23.82      
22 B 409 391 210.00      
23 B 328 314 5.49      
24 B 170 163 211.51      

Unscaled Zero Point Vibrational Energy (zpe) 19115.2 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 18272.3 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 PBE1PBE/6-31G
ABC
1.47601 0.13213 0.12254

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.315 0.594 0.050
C2 -0.315 -0.594 0.050
N3 -0.315 1.840 -0.076
N4 0.315 -1.840 -0.076
H5 1.402 0.638 0.063
H6 -1.402 -0.638 0.063
H7 -1.304 1.868 -0.256
H8 1.304 -1.868 -0.256
H9 0.063 2.627 0.422
H10 -0.063 -2.627 0.422

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34471.40102.43721.08872.11312.08182.67092.08203.2647
C21.34472.43721.40102.11311.08872.67092.08183.26472.0820
N31.40102.43723.73282.10042.70921.00574.04921.00524.5016
N42.43721.40103.73282.70922.10044.04921.00574.50161.0052
H51.08872.11312.10042.70923.08082.98942.52762.42533.5963
H62.11311.08872.70922.10043.08082.52762.98943.59632.4253
H72.08182.67091.00574.04922.98942.52764.55531.70404.7122
H82.67092.08184.04921.00572.52762.98944.55534.71221.7040
H92.08203.26471.00524.50162.42533.59631.70404.71225.2559
H103.26472.08204.50161.00523.59632.42534.71221.70405.2559

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.147 C1 C2 H6 120.173
C1 N3 H7 118.847 C1 N3 H9 118.911
C2 C1 N3 125.147 C2 C1 H5 120.173
C2 N4 H8 118.847 C2 N4 H10 118.911
N3 C1 H5 114.476 N4 C2 H6 114.476
H7 N3 H9 115.849 H8 N4 H10 115.849
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.025      
2 C 0.025      
3 N -0.808      
4 N -0.808      
5 H 0.143      
6 H 0.143      
7 H 0.321      
8 H 0.321      
9 H 0.319      
10 H 0.319      


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 1.442 1.442
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.170 -1.990 0.000
y -1.990 -18.932 0.000
z 0.000 0.000 -28.524
Traceless
 xyz
x 3.558 -1.990 0.000
y -1.990 5.414 0.000
z 0.000 0.000 -8.973
Polar
3z2-r2-17.945
x2-y2-1.237
xy-1.990
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.803 0.201 0.000
y 0.201 8.345 0.000
z 0.000 0.000 2.111


<r2> (average value of r2) Å2
<r2> 97.812
(<r2>)1/2 9.890