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All results from a given calculation for NH2CH2NH2 (diaminomethane)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/6-311G**
 hartrees
Energy at 0K-151.189236
Energy at 298.15K-151.197177
HF Energy-151.189236
Nuclear repulsion energy82.175366
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/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 A1 3360 3346 8.46      
2 A1 2969 2958 43.13      
3 A1 1626 1620 39.30      
4 A1 1449 1443 0.17      
5 A1 1062 1057 30.54      
6 A1 817 814 0.29      
7 A1 439 437 4.95      
8 A2 3438 3424 0.00      
9 A2 1361 1356 0.00      
10 A2 1054 1050 0.00      
11 A2 266 265 0.00      
12 B1 3436 3423 3.83      
13 B1 3005 2993 32.21      
14 B1 1335 1330 1.23      
15 B1 830 827 0.41      
16 B1 405 404 83.61      
17 B2 3359 3346 0.08      
18 B2 1617 1610 0.69      
19 B2 1352 1347 16.58      
20 B2 998 994 39.73      
21 B2 765 763 469.27      

Unscaled Zero Point Vibrational Energy (zpe) 17471.1 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 17403.0 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/6-311G**
ABC
1.17055 0.29313 0.26623

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.555
N2 0.000 1.282 -0.183
N3 0.000 -1.282 -0.183
H4 0.885 0.000 1.208
H5 -0.885 0.000 1.208
H6 0.821 1.336 -0.795
H7 -0.821 1.336 -0.795
H8 -0.821 -1.336 -0.795
H9 0.821 -1.336 -0.795

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5 H6 H7 H8 H9
C11.47911.47911.09981.09982.06872.06872.06872.0687
N21.47912.56372.08842.08841.02501.02502.81092.8109
N31.47912.56372.08842.08842.81092.81091.02501.0250
H41.09982.08842.08841.76942.40812.95042.95042.4081
H51.09982.08842.08841.76942.95042.40812.40812.9504
H62.06871.02502.81092.40812.95041.64213.13632.6721
H72.06871.02502.81092.95042.40811.64212.67213.1363
H82.06872.81091.02502.95042.40813.13632.67211.6421
H92.06872.81091.02502.40812.95042.67213.13631.6421

picture of diaminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H6 110.082 C1 N2 H7 110.082
C1 N3 H8 110.082 C1 N3 H9 110.082
N2 C1 N3 120.143 N2 C1 H4 107.239
N2 C1 H5 107.239 N3 C1 H4 107.239
N3 C1 H5 107.239 H4 C1 H5 107.115
H6 N2 H7 106.449 H8 N3 H9 106.449
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.066      
2 N -0.418      
3 N -0.418      
4 H 0.118      
5 H 0.118      
6 H 0.167      
7 H 0.167      
8 H 0.167      
9 H 0.167      


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 -1.825 1.825
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.235 0.000 0.000
y 0.000 -26.115 0.000
z 0.000 0.000 -18.524
Traceless
 xyz
x 5.084 0.000 0.000
y 0.000 -8.236 0.000
z 0.000 0.000 3.152
Polar
3z2-r26.303
x2-y28.880
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.409 0.000 0.000
y 0.000 4.903 0.000
z 0.000 0.000 4.341


<r2> (average value of r2) Å2
<r2> 55.047
(<r2>)1/2 7.419