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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-151.167781
Energy at 298.15K-151.175848
HF Energy-151.167781
Nuclear repulsion energy83.238475
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 3524 3524 1.52      
2 A1 3112 3112 37.00      
3 A1 1724 1724 68.99      
4 A1 1512 1512 0.90      
5 A1 1126 1126 41.07      
6 A1 894 894 2.28      
7 A1 464 464 4.79      
8 A2 3609 3609 0.00      
9 A2 1426 1426 0.00      
10 A2 1091 1091 0.00      
11 A2 275 275 0.00      
12 B1 3608 3608 0.00      
13 B1 3156 3156 26.69      
14 B1 1393 1393 0.61      
15 B1 867 867 0.81      
16 B1 418 418 106.67      
17 B2 3526 3526 0.00      
18 B2 1713 1713 2.96      
19 B2 1417 1417 24.01      
20 B2 1112 1112 89.27      
21 B2 804 804 466.31      

Unscaled Zero Point Vibrational Energy (zpe) 18384.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18384.9 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
1.18273 0.30359 0.27495

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 0.553
N2 0.000 1.258 -0.185
N3 0.000 -1.258 -0.185
H4 0.877 0.000 1.203
H5 -0.877 0.000 1.203
H6 0.816 1.316 -0.785
H7 -0.816 1.316 -0.785
H8 -0.816 -1.316 -0.785
H9 0.816 -1.316 -0.785

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5 H6 H7 H8 H9
C11.45821.45821.09161.09162.04682.04682.04682.0468
N21.45822.51562.06822.06821.01481.01482.76632.7663
N31.45822.51562.06822.06822.76632.76631.01481.0148
H41.09162.06822.06821.75352.38542.92442.92442.3854
H51.09162.06822.06821.75352.92442.38542.38542.9244
H62.04681.01482.76632.38542.92441.63233.09762.6326
H72.04681.01482.76632.92442.38541.63232.63263.0976
H82.04682.76631.01482.92442.38543.09762.63261.6323
H92.04682.76631.01482.38542.92442.63263.09761.6323

picture of diaminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H6 110.427 C1 N2 H7 110.427
C1 N3 H8 110.427 C1 N3 H9 110.427
N2 C1 N3 119.208 N2 C1 H4 107.543
N2 C1 H5 107.543 N3 C1 H4 107.543
N3 C1 H5 107.543 H4 C1 H5 106.872
H6 N2 H7 107.071 H8 N3 H9 107.071
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 -0.220      
2 N -0.745      
3 N -0.745      
4 H 0.239      
5 H 0.239      
6 H 0.308      
7 H 0.308      
8 H 0.308      
9 H 0.308      


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 -2.031 2.031
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.744 0.000 0.000
y 0.000 -26.640 0.000
z 0.000 0.000 -18.227
Traceless
 xyz
x 5.689 0.000 0.000
y 0.000 -9.155 0.000
z 0.000 0.000 3.466
Polar
3z2-r26.931
x2-y29.896
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.045 0.000 0.000
y 0.000 4.224 0.000
z 0.000 0.000 3.910


<r2> (average value of r2) Å2
<r2> 53.783
(<r2>)1/2 7.334