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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-311+G(3df,2p)
 hartrees
Energy at 0K-189.131950
Energy at 298.15K 
HF Energy-189.131950
Nuclear repulsion energy117.117203
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 PBEPBEultrafine/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 3521 3521 1.69      
2 A 3427 3427 0.03      
3 A 3061 3061 0.08      
4 A 1694 1694 0.54      
5 A 1587 1587 17.86      
6 A 1290 1290 0.40      
7 A 1245 1245 0.00      
8 A 1003 1003 0.32      
9 A 886 886 69.70      
10 A 751 751 126.45      
11 A 539 539 2.08      
12 A 327 327 3.33      
13 A 236 236 16.59      
14 B 3520 3520 5.80      
15 B 3425 3425 1.74      
16 B 3065 3065 45.63      
17 B 1593 1593 49.38      
18 B 1345 1345 10.24      
19 B 1154 1154 117.46      
20 B 1086 1086 1.93      
21 B 769 769 59.27      
22 B 696 696 303.52      
23 B 342 342 39.20      
24 B 247 247 84.22      

Unscaled Zero Point Vibrational Energy (zpe) 18403.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18403.6 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 PBEPBEultrafine/6-311+G(3df,2p)
ABC
1.43107 0.13166 0.12234

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.313 0.595 0.045
C2 -0.313 -0.595 0.045
N3 -0.313 1.853 -0.115
N4 0.313 -1.853 -0.115
H5 1.407 0.641 0.047
H6 -1.407 -0.641 0.047
H7 -1.330 1.799 -0.056
H8 1.330 -1.799 -0.056
H9 0.024 2.553 0.545
H10 -0.024 -2.553 0.545

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.34461.41422.45311.09472.11762.03942.60322.04193.2056
C21.34462.45311.41422.11761.09472.60322.03943.20562.0419
N31.41422.45313.75842.11042.72761.01974.00521.01964.4649
N42.45311.41423.75842.72762.11044.00521.01974.46491.0196
H51.09472.11762.11042.72763.09142.97342.44342.41243.5349
H62.11761.09472.72762.11043.09142.44342.97343.53492.4124
H72.03942.60321.01974.00522.97342.44344.47471.66144.5841
H82.60322.03944.00521.01972.44342.97344.47474.58411.6614
H92.04193.20561.01964.46492.41243.53491.66144.58415.1072
H103.20562.04194.46491.01963.53492.41244.58411.66145.1072

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.528 C1 C2 H6 120.135
C1 N3 H7 112.833 C1 N3 H9 113.058
C2 C1 N3 125.528 C2 C1 H5 120.135
C2 N4 H8 112.833 C2 N4 H10 113.058
N3 C1 H5 113.922 N4 C2 H6 113.922
H7 N3 H9 109.113 H8 N4 H10 109.113
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.315      
2 C 0.315      
3 N -0.776      
4 N -0.776      
5 H 0.101      
6 H 0.101      
7 H 0.175      
8 H 0.175      
9 H 0.185      
10 H 0.185      


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 1.921 1.921
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.283 -1.476 0.000
y -1.476 -22.969 0.000
z 0.000 0.000 -29.195
Traceless
 xyz
x 4.799 -1.476 0.000
y -1.476 2.270 0.000
z 0.000 0.000 -7.069
Polar
3z2-r2-14.138
x2-y21.686
xy-1.476
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.446 -0.056 0.000
y -0.056 10.547 0.000
z 0.000 0.000 5.356


<r2> (average value of r2) Å2
<r2> 98.799
(<r2>)1/2 9.940