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All results from a given calculation for H2NCHCHNH2 (diaminoethylene)

using model chemistry: BLYP/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at BLYP/3-21G
 hartrees
Energy at 0K-188.158456
Energy at 298.15K 
HF Energy-188.158456
Nuclear repulsion energy115.895908
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 BLYP/3-21G
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 3417 3398 0.00      
2 A 3308 3289 0.00      
3 A 3062 3046 0.12      
4 A 1674 1665 1.02      
5 A 1658 1649 14.08      
6 A 1321 1314 1.74      
7 A 1253 1246 0.13      
8 A 996 991 0.76      
9 A 906 901 71.74      
10 A 626 623 246.00      
11 A 542 539 1.16      
12 A 354 352 0.12      
13 A 245 243 23.78      
14 B 3417 3398 2.92      
15 B 3304 3286 3.81      
16 B 3069 3052 57.56      
17 B 1664 1655 39.37      
18 B 1374 1366 3.39      
19 B 1136 1129 53.48      
20 B 1116 1110 18.09      
21 B 756 752 13.84      
22 B 555 552 419.41      
23 B 347 345 56.02      
24 B 232 230 164.94      

Unscaled Zero Point Vibrational Energy (zpe) 18165.7 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 18065.8 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 BLYP/3-21G
ABC
1.41770 0.12854 0.11953

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.315 0.600 0.050
C2 -0.315 -0.600 0.050
N3 -0.315 1.873 -0.107
N4 0.315 -1.873 -0.107
H5 1.410 0.643 0.060
H6 -1.410 -0.643 0.060
H7 -1.344 1.838 -0.146
H8 1.344 -1.838 -0.146
H9 0.019 2.604 0.538
H10 -0.019 -2.604 0.538

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6 H7 H8 H9 H10
C11.35531.42982.47791.09542.12652.07972.65322.08393.2577
C21.35532.47791.42982.12651.09542.65322.07973.25772.0839
N31.42982.47793.79912.12552.74921.02964.06551.03064.5330
N42.47791.42983.79912.74922.12554.06551.02964.53301.0306
H51.09542.12652.12552.74923.09953.00892.49082.45123.5795
H62.12651.09542.74922.12553.09952.49083.00893.57952.4512
H72.07972.65321.02964.06553.00892.49084.55401.70604.6857
H82.65322.07974.06551.02962.49083.00894.55404.68571.7060
H92.08393.25771.03064.53302.45123.57951.70604.68575.2077
H103.25772.08394.53301.03063.57952.45124.68571.70605.2077

picture of diaminoethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 125.653 C1 C2 H6 120.013
C1 N3 H7 114.493 C1 N3 H9 114.805
C2 C1 N3 125.653 C2 C1 H5 120.013
C2 N4 H8 114.493 C2 N4 H10 114.805
N3 C1 H5 113.990 N4 C2 H6 113.990
H7 N3 H9 111.800 H8 N4 H10 111.800
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.020      
2 C -0.020      
3 N -0.654      
4 N -0.654      
5 H 0.151      
6 H 0.151      
7 H 0.262      
8 H 0.262      
9 H 0.261      
10 H 0.261      


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 2.139 2.139
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.419 -2.387 0.000
y -2.387 -20.644 0.000
z 0.000 0.000 -27.987
Traceless
 xyz
x 3.897 -2.387 0.000
y -2.387 3.559 0.000
z 0.000 0.000 -7.455
Polar
3z2-r2-14.911
x2-y20.225
xy-2.387
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.883 0.005 0.000
y 0.005 8.700 0.000
z 0.000 0.000 1.885


<r2> (average value of r2) Å2
<r2> 99.955
(<r2>)1/2 9.998