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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: mPW1PW91/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 mPW1PW91/Def2TZVPP
 hartrees
Energy at 0K-189.330097
Energy at 298.15K 
HF Energy-189.330097
Nuclear repulsion energy118.071848
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 mPW1PW91/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 3650 3650 2.29      
2 A 3555 3555 1.04      
3 A 3161 3161 0.04      
4 A 1774 1774 0.68      
5 A 1647 1647 19.34      
6 A 1341 1341 0.50      
7 A 1291 1291 0.02      
8 A 1041 1041 0.20      
9 A 941 941 68.30      
10 A 788 788 140.82      
11 A 557 557 1.95      
12 A 333 333 3.70      
13 A 245 245 16.05      
14 B 3650 3650 7.51      
15 B 3554 3554 3.20      
16 B 3166 3166 44.44      
17 B 1654 1654 51.28      
18 B 1398 1398 10.29      
19 B 1193 1193 122.41      
20 B 1128 1128 1.08      
21 B 827 827 61.61      
22 B 726 726 331.38      
23 B 346 346 36.14      
24 B 248 248 98.49      

Unscaled Zero Point Vibrational Energy (zpe) 19106.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19106.3 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 mPW1PW91/Def2TZVPP
ABC
1.46029 0.13363 0.12416

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.311 0.589 0.035
C2 -0.311 -0.589 0.035
N3 -0.311 1.841 -0.107
N4 0.311 -1.841 -0.107
H5 1.396 0.630 0.037
H6 -1.396 -0.630 0.037
H7 -1.316 1.788 -0.050
H8 1.316 -1.788 -0.050
H9 0.025 2.524 0.555
H10 -0.025 -2.524 0.555

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33161.40522.43411.08562.09722.02292.58182.02413.1738
C21.33162.43411.40522.09721.08562.58182.02293.17382.0241
N31.40522.43413.73432.09722.70291.00873.97721.00884.4242
N42.43411.40523.73432.70292.09723.97721.00874.42421.0088
H51.08562.09722.09722.70293.06272.94992.42082.39443.4981
H62.09721.08562.70292.09723.06272.42082.94993.49812.3944
H72.02292.58181.00873.97722.94992.42084.44001.64584.5413
H82.58182.02293.97721.00872.42082.94994.44004.54131.6458
H92.02413.17381.00884.42422.39443.49811.64584.54135.0482
H103.17382.02414.42421.00883.49812.39444.54131.64585.0482

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.570 C1 C2 H6 120.013
C1 N3 H7 112.831 C1 N3 H9 112.937
C2 C1 N3 125.570 C2 C1 H5 120.013
C2 N4 H8 112.831 C2 N4 H10 112.937
N3 C1 H5 114.085 N4 C2 H6 114.085
H7 N3 H9 109.326 H8 N4 H10 109.326
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.038      
2 C -0.038      
3 N -0.292      
4 N -0.292      
5 H 0.052      
6 H 0.052      
7 H 0.133      
8 H 0.133      
9 H 0.145      
10 H 0.145      


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 2.005 2.005
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.685 -1.469 0.000
y -1.469 -22.585 0.000
z 0.000 0.000 -28.403
Traceless
 xyz
x 4.809 -1.469 0.000
y -1.469 1.959 0.000
z 0.000 0.000 -6.768
Polar
3z2-r2-13.536
x2-y21.900
xy-1.469
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.823 0.095 0.000
y 0.095 9.356 0.000
z 0.000 0.000 4.424


<r2> (average value of r2) Å2
<r2> 97.137
(<r2>)1/2 9.856