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All results from a given calculation for NH2CH2NH2 (diaminomethane)

using model chemistry: M06-2X/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 M06-2X/6-311G**
 hartrees
Energy at 0K-151.180094
Energy at 298.15K-151.188143
HF Energy-151.180094
Nuclear repulsion energy83.260941
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 M06-2X/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3526 3526 0.03      
2 A1 3097 3097 34.56      
3 A1 1669 1669 53.60      
4 A1 1504 1504 0.53      
5 A1 1115 1115 40.31      
6 A1 877 877 3.32      
7 A1 461 461 4.38      
8 A2 3614 3614 0.00      
9 A2 1413 1413 0.00      
10 A2 1082 1082 0.00      
11 A2 273 273 0.00      
12 B1 3611 3611 1.34      
13 B1 3141 3141 24.17      
14 B1 1375 1375 0.55      
15 B1 865 865 0.65      
16 B1 411 411 95.50      
17 B2 3528 3528 0.34      
18 B2 1662 1662 4.83      
19 B2 1410 1410 21.33      
20 B2 1110 1110 89.30      
21 B2 785 785 425.90      

Unscaled Zero Point Vibrational Energy (zpe) 18264.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18264.0 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 M06-2X/6-311G**
ABC
1.17989 0.30426 0.27534

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/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 1.256 -0.185
N3 0.000 -1.256 -0.185
H4 0.877 0.000 1.204
H5 -0.877 0.000 1.204
H6 0.816 1.314 -0.786
H7 -0.816 1.314 -0.786
H8 -0.816 -1.314 -0.786
H9 0.816 -1.314 -0.786

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5 H6 H7 H8 H9
C11.45811.45811.09181.09182.04662.04662.04662.0466
N21.45812.51292.06862.06861.01471.01472.76272.7627
N31.45812.51292.06862.06862.76272.76271.01471.0147
H41.09182.06862.06861.75482.38562.92472.92472.3856
H51.09182.06862.06861.75482.92472.38562.38562.9247
H62.04661.01472.76272.38562.92471.63153.09302.6276
H72.04661.01472.76272.92472.38561.63152.62763.0930
H82.04662.76271.01472.92472.38563.09302.62761.6315
H92.04662.76271.01472.38562.92472.62763.09301.6315

picture of diaminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H6 110.431 C1 N2 H7 110.431
C1 N3 H8 110.431 C1 N3 H9 110.431
N2 C1 N3 119.024 N2 C1 H4 107.574
N2 C1 H5 107.574 N3 C1 H4 107.574
N3 C1 H5 107.574 H4 C1 H5 106.958
H6 N2 H7 107.016 H8 N3 H9 107.016
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.098      
2 N -0.498      
3 N -0.498      
4 H 0.151      
5 H 0.151      
6 H 0.198      
7 H 0.198      
8 H 0.198      
9 H 0.198      


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 -1.887 1.887
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.826 0.000 0.000
y 0.000 -26.183 0.000
z 0.000 0.000 -18.146
Traceless
 xyz
x 5.338 0.000 0.000
y 0.000 -8.697 0.000
z 0.000 0.000 3.358
Polar
3z2-r26.716
x2-y29.357
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.119 0.000 0.000
y 0.000 4.353 0.000
z 0.000 0.000 4.018


<r2> (average value of r2) Å2
<r2> 53.637
(<r2>)1/2 7.324