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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-189.300452
Energy at 298.15K 
HF Energy-189.300452
Nuclear repulsion energy117.855959
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 mPW1PW91/6-311G**
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 3644 3486 1.21      
2 A 3548 3394 1.87      
3 A 3156 3020 0.00      
4 A 1779 1702 0.29      
5 A 1652 1581 24.31      
6 A 1338 1280 0.61      
7 A 1295 1239 0.06      
8 A 1045 1000 0.16      
9 A 938 897 76.86      
10 A 805 770 152.15      
11 A 557 533 1.86      
12 A 336 322 1.76      
13 A 252 241 18.00      
14 B 3643 3486 3.28      
15 B 3546 3393 0.53      
16 B 3160 3023 52.55      
17 B 1660 1589 58.23      
18 B 1397 1337 8.47      
19 B 1198 1147 113.30      
20 B 1132 1083 0.94      
21 B 817 782 83.74      
22 B 739 707 343.90      
23 B 348 333 40.15      
24 B 249 238 102.64      

Unscaled Zero Point Vibrational Energy (zpe) 19117.7 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 18289.9 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 mPW1PW91/6-311G**
ABC
1.45288 0.13308 0.12374

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.311 0.591 0.037
C2 -0.311 -0.591 0.037
N3 -0.311 1.846 -0.109
N4 0.311 -1.846 -0.109
H5 1.397 0.633 0.037
H6 -1.397 -0.633 0.037
H7 -1.318 1.784 -0.064
H8 1.318 -1.784 -0.064
H9 0.011 2.519 0.572
H10 -0.011 -2.519 0.572

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33491.40762.44071.08762.10102.02172.58192.02393.1724
C21.33492.44071.40762.10101.08762.58192.02173.17242.0239
N31.40762.44073.74292.09972.71021.01083.97861.01114.4279
N42.44071.40763.74292.71022.09973.97861.01084.42791.0111
H51.08762.10102.09972.71023.06792.95142.42032.40133.4938
H62.10101.08762.71022.09973.06792.42032.95143.49382.4013
H72.02172.58191.01083.97862.95142.42034.43671.64734.5424
H82.58192.02173.97861.01082.42032.95144.43674.54241.6473
H92.02393.17241.01114.42792.40133.49381.64734.54245.0388
H103.17242.02394.42791.01113.49382.40134.54241.64735.0388

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.717 C1 C2 H6 119.941
C1 N3 H7 112.401 C1 N3 H9 112.566
C2 C1 N3 125.717 C2 C1 H5 119.941
C2 N4 H8 112.401 C2 N4 H10 112.566
N3 C1 H5 113.987 N4 C2 H6 113.987
H7 N3 H9 109.121 H8 N4 H10 109.121
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.057      
2 C -0.057      
3 N -0.452      
4 N -0.452      
5 H 0.105      
6 H 0.105      
7 H 0.199      
8 H 0.199      
9 H 0.205      
10 H 0.205      


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 2.185 2.185
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.450 -1.703 0.000
y -1.703 -22.343 0.000
z 0.000 0.000 -28.095
Traceless
 xyz
x 4.769 -1.703 0.000
y -1.703 1.929 0.000
z 0.000 0.000 -6.699
Polar
3z2-r2-13.397
x2-y21.893
xy-1.703
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.402 0.172 0.000
y 0.172 8.720 0.000
z 0.000 0.000 3.391


<r2> (average value of r2) Å2
<r2> 97.231
(<r2>)1/2 9.861