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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B3LYP/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYP/Def2TZVPP
 hartrees
Energy at 0K-189.383804
Energy at 298.15K 
HF Energy-189.383804
Nuclear repulsion energy117.657845
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 B3LYP/Def2TZVPP
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 3601 3466 1.75      
2 A 3510 3379 0.68      
3 A 3137 3019 0.04      
4 A 1746 1681 0.57      
5 A 1644 1583 18.37      
6 A 1340 1290 0.56      
7 A 1278 1231 0.01      
8 A 1030 991 0.23      
9 A 933 898 69.03      
10 A 781 752 141.75      
11 A 554 533 1.54      
12 A 329 316 3.27      
13 A 243 234 15.87      
14 B 3600 3466 5.30      
15 B 3508 3377 1.92      
16 B 3142 3025 45.98      
17 B 1650 1588 47.38      
18 B 1396 1343 9.16      
19 B 1165 1121 115.98      
20 B 1128 1086 1.95      
21 B 818 788 58.66      
22 B 723 696 340.30      
23 B 345 333 32.80      
24 B 250 240 98.97      

Unscaled Zero Point Vibrational Energy (zpe) 18925.1 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 18217.3 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 B3LYP/Def2TZVPP
ABC
1.45529 0.13251 0.12316

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.312 0.590 0.037
C2 -0.312 -0.590 0.037
N3 -0.312 1.849 -0.108
N4 0.312 -1.849 -0.108
H5 1.396 0.634 0.040
H6 -1.396 -0.634 0.040
H7 -1.320 1.800 -0.056
H8 1.320 -1.800 -0.056
H9 0.025 2.537 0.551
H10 -0.025 -2.537 0.551

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33431.41222.44291.08562.10102.03352.59542.03413.1867
C21.33432.44291.41222.10101.08562.59542.03353.18672.0341
N31.41222.44293.74972.10142.71301.01083.99711.01094.4442
N42.44291.41223.74972.71302.10143.99711.01084.44421.0109
H51.08562.10102.10142.71303.06672.95772.43652.40103.5120
H62.10101.08562.71302.10143.06672.43652.95773.51202.4010
H72.03352.59541.01083.99712.95772.43654.46401.64994.5665
H82.59542.03353.99711.01082.43652.95774.46404.56651.6499
H92.03413.18671.01094.44422.40103.51201.64994.56655.0741
H103.18672.03414.44421.01093.51202.40104.56651.64995.0741

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.589 C1 C2 H6 120.156
C1 N3 H7 113.072 C1 N3 H9 113.125
C2 C1 N3 125.589 C2 C1 H5 120.156
C2 N4 H8 113.072 C2 N4 H10 113.125
N3 C1 H5 113.918 N4 C2 H6 113.918
H7 N3 H9 109.385 H8 N4 H10 109.385
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.031      
2 C -0.031      
3 N -0.298      
4 N -0.298      
5 H 0.063      
6 H 0.063      
7 H 0.129      
8 H 0.129      
9 H 0.137      
10 H 0.137      


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 1.984 1.984
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.057 -1.476 0.000
y -1.476 -22.928 0.000
z 0.000 0.000 -28.681
Traceless
 xyz
x 4.747 -1.476 0.000
y -1.476 1.940 0.000
z 0.000 0.000 -6.688
Polar
3z2-r2-13.376
x2-y21.871
xy-1.476
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.922 0.083 0.000
y 0.083 9.529 0.000
z 0.000 0.000 4.464


<r2> (average value of r2) Å2
<r2> 98.016
(<r2>)1/2 9.900