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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: mPW1PW91/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at mPW1PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-189.321349
Energy at 298.15K 
HF Energy-189.321349
Nuclear repulsion energy118.063175
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 mPW1PW91/6-311+G(3df,2p)
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 3655 3655 2.64      
2 A 3561 3561 0.49      
3 A 3157 3157 0.06      
4 A 1772 1772 0.50      
5 A 1646 1646 19.71      
6 A 1341 1341 0.38      
7 A 1289 1289 0.01      
8 A 1037 1037 0.08      
9 A 939 939 70.13      
10 A 772 772 139.49      
11 A 556 556 2.49      
12 A 330 330 4.62      
13 A 241 241 15.15      
14 B 3655 3655 11.48      
15 B 3559 3559 5.49      
16 B 3161 3161 42.69      
17 B 1653 1653 58.74      
18 B 1396 1396 9.73      
19 B 1191 1191 133.67      
20 B 1123 1123 1.41      
21 B 827 827 52.60      
22 B 714 714 307.51      
23 B 343 343 32.39      
24 B 246 246 98.42      

Unscaled Zero Point Vibrational Energy (zpe) 19081.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19081.4 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 mPW1PW91/6-311+G(3df,2p)
ABC
1.46199 0.13362 0.12412

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.311 0.589 0.034
C2 -0.311 -0.589 0.034
N3 -0.311 1.841 -0.106
N4 0.311 -1.841 -0.106
H5 1.396 0.631 0.035
H6 -1.396 -0.631 0.035
H7 -1.317 1.792 -0.047
H8 1.317 -1.792 -0.047
H9 0.031 2.528 0.549
H10 -0.031 -2.528 0.549

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33111.40512.43331.08552.09742.02642.58612.02643.1774
C21.33112.43331.40512.09741.08552.58612.02643.17742.0264
N31.40512.43333.73372.09652.70291.00913.98171.00904.4266
N42.43331.40513.73372.70292.09653.98171.00914.42661.0090
H51.08552.09742.09652.70293.06312.95202.42612.39303.5041
H62.09741.08552.70292.09653.06312.42612.95203.50412.3930
H72.02642.58611.00913.98172.95202.42614.44861.64734.5473
H82.58612.02643.98171.00912.42612.95204.44864.54731.6473
H92.02643.17741.00904.42662.39303.50411.64734.54735.0567
H103.17742.02644.42661.00903.50412.39304.54731.64735.0567

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.550 C1 C2 H6 120.085
C1 N3 H7 113.128 C1 N3 H9 113.136
C2 C1 N3 125.550 C2 C1 H5 120.085
C2 N4 H8 113.128 C2 N4 H10 113.136
N3 C1 H5 114.041 N4 C2 H6 114.041
H7 N3 H9 109.427 H8 N4 H10 109.427
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.358      
2 C 0.358      
3 N -0.818      
4 N -0.818      
5 H 0.106      
6 H 0.106      
7 H 0.174      
8 H 0.174      
9 H 0.180      
10 H 0.180      


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 2.000 2.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.805 -1.366 0.000
y -1.366 -22.917 0.000
z 0.000 0.000 -28.774
Traceless
 xyz
x 5.041 -1.366 0.000
y -1.366 1.872 0.000
z 0.000 0.000 -6.913
Polar
3z2-r2-13.826
x2-y22.112
xy-1.366
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.070 0.059 0.000
y 0.059 9.784 0.000
z 0.000 0.000 5.054


<r2> (average value of r2) Å2
<r2> 97.352
(<r2>)1/2 9.867