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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: TPSSh/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 TPSSh/Def2TZVPP
 hartrees
Energy at 0K-189.382082
Energy at 298.15K 
HF Energy-189.382082
Nuclear repulsion energy117.523316
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 TPSSh/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 3576 3576 1.10      
2 A 3483 3483 0.29      
3 A 3135 3135 0.04      
4 A 1739 1739 0.44      
5 A 1644 1644 19.49      
6 A 1335 1335 0.51      
7 A 1278 1278 0.00      
8 A 1027 1027 0.43      
9 A 935 935 68.48      
10 A 802 802 124.03      
11 A 546 546 1.34      
12 A 331 331 2.72      
13 A 245 245 15.89      
14 B 3575 3575 2.74      
15 B 3482 3482 0.57      
16 B 3139 3139 48.40      
17 B 1651 1651 40.98      
18 B 1392 1392 10.31      
19 B 1165 1165 103.74      
20 B 1120 1120 1.92      
21 B 802 802 88.08      
22 B 741 741 322.95      
23 B 346 346 44.80      
24 B 245 245 83.94      

Unscaled Zero Point Vibrational Energy (zpe) 18866.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18866.2 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 TPSSh/Def2TZVPP
ABC
1.44210 0.13242 0.12308

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.591 0.041
C2 -0.313 -0.591 0.041
N3 -0.313 1.850 -0.114
N4 0.313 -1.850 -0.114
H5 1.399 0.637 0.042
H6 -1.399 -0.637 0.042
H7 -1.322 1.790 -0.049
H8 1.322 -1.790 -0.049
H9 0.019 2.534 0.557
H10 -0.019 -2.534 0.557

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33711.41432.44531.08672.10662.02972.58712.03173.1841
C21.33712.44531.41432.10661.08672.58712.02973.18412.0317
N31.41432.44533.75182.10322.71811.01343.99031.01374.4440
N42.44531.41433.75182.71812.10323.99031.01344.44401.0137
H51.08672.10662.10322.71813.07412.95642.42982.40123.5112
H62.10661.08672.71812.10323.07412.42982.95643.51122.4012
H72.02972.58711.01343.99032.95642.42984.45041.64894.5561
H82.58712.02973.99031.01342.42982.95644.45044.55611.6489
H92.03173.18411.01374.44402.40123.51121.64894.55615.0675
H103.18412.03174.44401.01373.51122.40124.55611.64895.0675

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.408 C1 C2 H6 120.367
C1 N3 H7 112.403 C1 N3 H9 112.554
C2 C1 N3 125.408 C2 C1 H5 120.367
C2 N4 H8 112.403 C2 N4 H10 112.554
N3 C1 H5 113.834 N4 C2 H6 113.834
H7 N3 H9 108.865 H8 N4 H10 108.865
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.013      
2 C -0.013      
3 N -0.292      
4 N -0.292      
5 H 0.029      
6 H 0.029      
7 H 0.131      
8 H 0.131      
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 1.995 1.995
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.954 0.041 0.000
y 0.041 9.656 0.000
z 0.000 0.000 4.493


<r2> (average value of r2) Å2
<r2> 97.933
(<r2>)1/2 9.896