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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: HF/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 HF/6-311+G(3df,2p)
 hartrees
Energy at 0K-188.164454
Energy at 298.15K 
HF Energy-188.164454
Nuclear repulsion energy118.571949
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 HF/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 3838 3487 3.53 77.80 0.74 0.85
2 A 3749 3406 1.30 220.52 0.04 0.08
3 A 3290 2989 0.02 141.90 0.30 0.47
4 A 1902 1728 0.15 87.92 0.12 0.21
5 A 1777 1615 23.50 5.45 0.54 0.70
6 A 1450 1317 0.53 28.36 0.26 0.41
7 A 1371 1246 0.02 12.48 0.59 0.74
8 A 1105 1004 1.07 10.88 0.13 0.23
9 A 1048 952 77.56 0.96 0.29 0.46
10 A 858 780 141.29 1.66 0.43 0.60
11 A 590 536 1.85 8.38 0.17 0.29
12 A 332 302 5.50 1.50 0.37 0.54
13 A 252 229 13.61 0.30 0.74 0.85
14 B 3838 3487 14.41 26.50 0.75 0.86
15 B 3748 3405 10.37 42.20 0.75 0.86
16 B 3292 2991 46.58 0.00 0.75 0.86
17 B 1787 1624 63.71 1.73 0.75 0.86
18 B 1507 1370 7.82 0.28 0.75 0.86
19 B 1225 1113 135.76 0.09 0.75 0.86
20 B 1214 1103 0.03 0.72 0.75 0.86
21 B 946 860 69.24 13.89 0.75 0.86
22 B 799 726 293.81 0.10 0.75 0.86
23 B 351 319 17.16 0.14 0.75 0.86
24 B 242 220 123.23 0.19 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 20255.1 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 18403.8 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 HF/6-311+G(3df,2p)
ABC
1.48550 0.13416 0.12478

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.310 0.581 0.017
C2 -0.310 -0.581 0.017
N3 -0.310 1.841 -0.093
N4 0.310 -1.841 -0.093
H5 1.386 0.622 0.019
H6 -1.386 -0.622 0.019
H7 -1.305 1.794 -0.066
H8 1.305 -1.794 -0.066
H9 0.010 2.489 0.595
H10 -0.010 -2.489 0.595

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.31631.40902.42471.07662.07832.02112.57582.01593.1395
C21.31632.42471.40902.07831.07662.57582.02113.13952.0159
N31.40902.42473.73462.09162.69000.99663.97760.99694.3946
N42.42471.40903.73462.69002.09163.97760.99664.39460.9969
H51.07662.07832.09162.69003.03712.93582.41802.38983.4571
H62.07831.07662.69002.09163.03712.41802.93583.45712.3898
H72.02112.57580.99663.97762.93582.41804.43611.62724.5224
H82.57582.02113.97760.99662.41802.93584.43614.52241.6272
H92.01593.13950.99694.39462.38983.45711.62724.52244.9772
H103.13952.01594.39460.99693.45712.38984.52241.62724.9772

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.631 C1 C2 H6 120.247
C1 N3 H7 113.206 C1 N3 H9 112.719
C2 C1 N3 125.631 C2 C1 H5 120.247
C2 N4 H8 113.206 C2 N4 H10 112.719
N3 C1 H5 113.926 N4 C2 H6 113.926
H7 N3 H9 109.430 H8 N4 H10 109.430
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.448      
2 C 0.448      
3 N -0.925      
4 N -0.925      
5 H 0.120      
6 H 0.120      
7 H 0.175      
8 H 0.175      
9 H 0.183      
10 H 0.183      


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 2.166 2.166
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.732 -1.385 0.000
y -1.385 -24.217 0.000
z 0.000 0.000 -28.583
Traceless
 xyz
x 5.667 -1.385 0.000
y -1.385 0.441 0.000
z 0.000 0.000 -6.108
Polar
3z2-r2-12.217
x2-y23.484
xy-1.385
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.681 0.304 0.000
y 0.304 8.765 0.000
z 0.000 0.000 4.749


<r2> (average value of r2) Å2
<r2> 97.002
(<r2>)1/2 9.849