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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-189.068278
Energy at 298.15K 
HF Energy-188.875663
Nuclear repulsion energy117.340342
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 B2PLYP/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 3608 3425 0.46      
2 A 3508 3329 1.11      
3 A 3190 3028 0.13      
4 A 1782 1692 0.00      
5 A 1693 1607 27.97      
6 A 1361 1292 0.77      
7 A 1310 1243 0.01      
8 A 1060 1006 2.05      
9 A 951 902 60.62      
10 A 863 819 147.26      
11 A 559 530 0.96      
12 A 331 314 0.01      
13 A 256 243 19.94      
14 B 3608 3424 1.33      
15 B 3506 3328 0.08      
16 B 3191 3029 51.21      
17 B 1703 1617 46.22      
18 B 1423 1351 8.29      
19 B 1200 1139 72.89      
20 B 1153 1095 0.67      
21 B 822 780 356.68      
22 B 773 734 120.10      
23 B 351 333 48.18      
24 B 257 244 97.78      

Unscaled Zero Point Vibrational Energy (zpe) 19229.3 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 18252.4 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 B2PLYP/6-31G*
ABC
1.43065 0.13206 0.12282

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.314 0.592 0.037
C2 -0.314 -0.592 0.037
N3 -0.314 1.854 -0.113
N4 0.314 -1.854 -0.113
H5 1.401 0.639 0.037
H6 -1.401 -0.639 0.037
H7 -1.326 1.777 -0.064
H8 1.326 -1.777 -0.064
H9 -0.009 2.516 0.596
H10 0.009 -2.516 0.596

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34081.41692.45101.08822.11142.02502.57832.02883.1728
C21.34082.45101.41692.11141.08822.57832.02503.17282.0288
N31.41692.45103.76072.10672.72431.01593.98421.01614.4386
N42.45101.41693.76072.72432.10673.98421.01594.43861.0161
H51.08822.11142.10672.72433.08012.95612.41972.41253.4936
H62.11141.08822.72432.10673.08012.41972.95613.49362.4125
H72.02502.57831.01593.98422.95612.41974.43381.64744.5435
H82.57832.02503.98421.01592.41972.95614.43384.54351.6474
H92.02883.17281.01614.43862.41253.49361.64744.54355.0317
H103.17282.02884.43861.01613.49362.41254.54351.64745.0317

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.415 C1 C2 H6 120.382
C1 N3 H7 111.624 C1 N3 H9 111.938
C2 C1 N3 125.415 C2 C1 H5 120.382
C2 N4 H8 111.624 C2 N4 H10 111.938
N3 C1 H5 113.838 N4 C2 H6 113.838
H7 N3 H9 108.335 H8 N4 H10 108.335
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.012      
2 C -0.012      
3 N -0.750      
4 N -0.750      
5 H 0.130      
6 H 0.130      
7 H 0.316      
8 H 0.316      
9 H 0.317      
10 H 0.317      


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 2.456 2.456
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.524 -1.808 0.000
y -1.808 -23.263 0.000
z 0.000 0.000 -27.797
Traceless
 xyz
x 5.006 -1.808 0.000
y -1.808 0.897 0.000
z 0.000 0.000 -5.903
Polar
3z2-r2-11.806
x2-y22.739
xy-1.808
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.068 0.110 0.000
y 0.110 8.247 0.000
z 0.000 0.000 2.640


<r2> (average value of r2) Å2
<r2> 97.943
(<r2>)1/2 9.897