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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B3LYPultrafine/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B3LYPultrafine/6-31G(2df,p)
 hartrees
Energy at 0K-189.311046
Energy at 298.15K 
HF Energy-189.311046
Nuclear repulsion energy117.497792
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 B3LYPultrafine/6-31G(2df,p)
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 3592 3466 0.64      
2 A 3499 3376 1.13      
3 A 3140 3030 0.05      
4 A 1763 1701 0.16      
5 A 1644 1586 19.22      
6 A 1338 1291 0.70      
7 A 1287 1242 0.13      
8 A 1037 1000 0.80      
9 A 951 917 45.21      
10 A 821 792 125.59      
11 A 556 536 0.86      
12 A 336 324 0.35      
13 A 254 245 15.55      
14 B 3591 3465 2.24      
15 B 3497 3374 0.06      
16 B 3143 3033 48.73      
17 B 1649 1592 39.25      
18 B 1396 1347 9.54      
19 B 1180 1139 82.12      
20 B 1128 1089 1.06      
21 B 820 792 104.85      
22 B 754 728 315.63      
23 B 353 340 43.70      
24 B 258 249 82.07      

Unscaled Zero Point Vibrational Energy (zpe) 18992.0 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 18327.3 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 B3LYPultrafine/6-31G(2df,p)
ABC
1.44746 0.13217 0.12292

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.311 0.591 0.034
C2 -0.311 -0.591 0.034
N3 -0.311 1.853 -0.111
N4 0.311 -1.853 -0.111
H5 1.399 0.637 0.037
H6 -1.399 -0.637 0.037
H7 -1.321 1.789 -0.041
H8 1.321 -1.789 -0.041
H9 0.017 2.524 0.576
H10 -0.017 -2.524 0.576

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33571.41452.44821.08882.10552.02612.58672.02873.1783
C21.33572.44821.41452.10551.08882.58672.02613.17832.0287
N31.41452.44823.75782.10332.72151.01403.99191.01444.4398
N42.44821.41453.75782.72152.10333.99191.01404.43981.0144
H51.08882.10552.10332.72153.07452.95462.42932.39963.5051
H62.10551.08882.72152.10333.07452.42932.95463.50512.3996
H72.02612.58671.01403.99192.95462.42934.44811.64574.5478
H82.58672.02613.99191.01402.42932.95464.44814.54781.6457
H92.02873.17831.01444.43982.39963.50511.64574.54785.0473
H103.17832.02874.43981.01443.50512.39964.54781.64575.0473

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.768 C1 C2 H6 120.209
C1 N3 H7 112.029 C1 N3 H9 112.233
C2 C1 N3 125.768 C2 C1 H5 120.209
C2 N4 H8 112.029 C2 N4 H10 112.233
N3 C1 H5 113.694 N4 C2 H6 113.694
H7 N3 H9 108.452 H8 N4 H10 108.452
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.033      
2 C -0.033      
3 N -0.512      
4 N -0.512      
5 H 0.076      
6 H 0.076      
7 H 0.233      
8 H 0.233      
9 H 0.236      
10 H 0.236      


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 2.082 2.082
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.667 -1.534 0.000
y -1.534 -22.488 0.000
z 0.000 0.000 -27.409
Traceless
 xyz
x 4.281 -1.534 0.000
y -1.534 1.550 0.000
z 0.000 0.000 -5.831
Polar
3z2-r2-11.662
x2-y21.821
xy-1.534
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.379 0.054 0.000
y 0.054 8.671 0.000
z 0.000 0.000 3.171


<r2> (average value of r2) Å2
<r2> 97.678
(<r2>)1/2 9.883