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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: B1B95/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B1B95/6-31+G**
 hartrees
Energy at 0K-189.219220
Energy at 298.15K 
HF Energy-189.219220
Nuclear repulsion energy117.801138
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 B1B95/6-31+G**
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 3676 3517 2.86      
2 A 3569 3414 1.48      
3 A 3184 3046 0.07      
4 A 1786 1708 1.08      
5 A 1653 1581 26.11      
6 A 1337 1279 0.52      
7 A 1287 1231 0.12      
8 A 1039 994 0.02      
9 A 936 895 75.78      
10 A 773 740 180.44      
11 A 553 529 3.75      
12 A 325 311 3.79      
13 A 246 235 19.94      
14 B 3676 3516 10.75      
15 B 3568 3413 5.07      
16 B 3187 3048 52.69      
17 B 1661 1589 73.84      
18 B 1390 1330 10.24      
19 B 1200 1148 143.68      
20 B 1119 1070 1.73      
21 B 813 778 63.59      
22 B 713 682 326.23      
23 B 338 323 38.06      
24 B 243 232 115.40      

Unscaled Zero Point Vibrational Energy (zpe) 19134.6 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 18304.2 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 B1B95/6-31+G**
ABC
1.45024 0.13306 0.12364

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31+G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.312 0.591 0.039
C2 -0.312 -0.591 0.039
N3 -0.312 1.844 -0.107
N4 0.312 -1.844 -0.107
H5 1.398 0.636 0.039
H6 -1.398 -0.636 0.039
H7 -1.321 1.792 -0.081
H8 1.321 -1.792 -0.081
H9 0.010 2.532 0.560
H10 -0.010 -2.532 0.560

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.33711.40712.43961.08712.10532.03042.59062.03163.1825
C21.33712.43961.40712.10531.08712.59062.03043.18252.0316
N31.40712.43963.74032.09872.71161.01073.98571.01084.4364
N42.43961.40713.74032.71162.09873.98571.01074.43641.0108
H51.08712.10532.09872.71163.07252.95692.43232.40623.5061
H62.10531.08712.71162.09873.07252.43232.95693.50612.4062
H72.03042.59061.01073.98572.95692.43234.45221.65234.5629
H82.59062.03043.98571.01072.43232.95694.45224.56291.6523
H92.03163.18251.01084.43642.40623.50611.65234.56295.0635
H103.18252.03164.43641.01083.50612.40624.56291.65235.0635

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.472 C1 C2 H6 120.201
C1 N3 H7 113.211 C1 N3 H9 113.311
C2 C1 N3 125.472 C2 C1 H5 120.201
C2 N4 H8 113.211 C2 N4 H10 113.311
N3 C1 H5 113.963 N4 C2 H6 113.963
H7 N3 H9 109.649 H8 N4 H10 109.649
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.110      
2 C -0.110      
3 N -0.592      
4 N -0.592      
5 H 0.127      
6 H 0.127      
7 H 0.284      
8 H 0.284      
9 H 0.291      
10 H 0.291      


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 2.190 2.190
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.632 -1.703 0.000
y -1.703 -23.076 0.000
z 0.000 0.000 -29.048
Traceless
 xyz
x 5.429 -1.703 0.000
y -1.703 1.764 0.000
z 0.000 0.000 -7.194
Polar
3z2-r2-14.387
x2-y22.443
xy-1.703
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.631 0.223 0.000
y 0.223 9.322 0.000
z 0.000 0.000 4.538


<r2> (average value of r2) Å2
<r2> 97.747
(<r2>)1/2 9.887