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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: PBEPBE/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 PBEPBE/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 PBEPBE/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 3492 1.69      
2 A 3427 3399 0.03      
3 A 3061 3035 0.08      
4 A 1694 1680 0.54      
5 A 1587 1574 17.86      
6 A 1290 1279 0.40      
7 A 1245 1235 0.00      
8 A 1003 995 0.32      
9 A 886 879 69.70      
10 A 751 745 126.45      
11 A 539 534 2.08      
12 A 327 324 3.33      
13 A 236 234 16.59      
14 B 3520 3491 5.80      
15 B 3425 3397 1.74      
16 B 3065 3040 45.63      
17 B 1593 1580 49.38      
18 B 1345 1334 10.24      
19 B 1154 1144 117.46      
20 B 1086 1077 1.93      
21 B 769 763 59.27      
22 B 696 690 303.52      
23 B 342 340 39.20      
24 B 247 245 84.22      

Unscaled Zero Point Vibrational Energy (zpe) 18403.6 cm-1
Scaled (by 0.9918) Zero Point Vibrational Energy (zpe) 18252.6 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 PBEPBE/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 PBEPBE/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 PBEPBE/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