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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-189.237165
Energy at 298.15K 
HF Energy-189.237165
Nuclear repulsion energy117.974281
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 B1B95/6-311G*
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 3639 3488 0.34      
2 A 3544 3397 0.91      
3 A 3158 3027 0.02      
4 A 1791 1717 0.00      
5 A 1699 1629 32.19      
6 A 1346 1290 0.56      
7 A 1303 1249 0.11      
8 A 1053 1009 0.66      
9 A 938 899 77.19      
10 A 832 798 158.38      
11 A 555 532 1.94      
12 A 336 322 0.75      
13 A 255 245 20.91      
14 B 3638 3488 0.79      
15 B 3542 3396 0.74      
16 B 3161 3030 62.95      
17 B 1709 1639 64.89      
18 B 1408 1350 8.95      
19 B 1202 1152 100.04      
20 B 1143 1095 1.00      
21 B 818 784 169.80      
22 B 759 727 298.73      
23 B 347 333 48.81      
24 B 247 237 106.16      

Unscaled Zero Point Vibrational Energy (zpe) 19211.4 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 18416.1 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 B1B95/6-311G*
ABC
1.45416 0.13332 0.12403

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.310 0.590 0.040
C2 -0.310 -0.590 0.040
N3 -0.310 1.844 -0.111
N4 0.310 -1.844 -0.111
H5 1.396 0.634 0.039
H6 -1.396 -0.634 0.039
H7 -1.317 1.779 -0.079
H8 1.317 -1.779 -0.079
H9 -0.001 2.513 0.581
H10 0.001 -2.513 0.581

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33261.40672.43881.08712.09932.01832.57732.02113.1643
C21.33262.43881.40672.09931.08712.57732.01833.16432.0211
N31.40672.43883.73972.09612.71031.00993.97171.01034.4221
N42.43881.40673.73972.71032.09613.97171.00994.42211.0103
H51.08712.09932.09612.71033.06632.94662.41792.40253.4843
H62.09931.08712.71032.09613.06632.41792.94663.48432.4025
H72.01832.57731.00993.97172.94662.41794.42711.64424.5379
H82.57732.01833.97171.00992.41792.94664.42714.53791.6442
H92.02113.16431.01034.42212.40253.48431.64424.53795.0250
H103.16432.02114.42211.01033.48432.40254.53791.64425.0250

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.804 C1 C2 H6 120.024
C1 N3 H7 112.231 C1 N3 H9 112.452
C2 C1 N3 125.804 C2 C1 H5 120.024
C2 N4 H8 112.231 C2 N4 H10 112.452
N3 C1 H5 113.778 N4 C2 H6 113.778
H7 N3 H9 108.951 H8 N4 H10 108.951
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.083      
2 C -0.083      
3 N -0.765      
4 N -0.765      
5 H 0.199      
6 H 0.199      
7 H 0.326      
8 H 0.326      
9 H 0.323      
10 H 0.323      


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 2.319 2.319
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.370 -1.861 0.000
y -1.861 -22.603 0.000
z 0.000 0.000 -28.254
Traceless
 xyz
x 5.059 -1.861 0.000
y -1.861 1.709 0.000
z 0.000 0.000 -6.768
Polar
3z2-r2-13.536
x2-y22.233
xy-1.861
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.320 0.166 0.000
y 0.166 8.603 0.000
z 0.000 0.000 3.255


<r2> (average value of r2) Å2
<r2> 97.114
(<r2>)1/2 9.855