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All results from a given calculation for NH2CH2NH2 (diaminomethane)

using model chemistry: M06-2X/6-31G**

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/6-31G**
 hartrees
Energy at 0K-151.137188
Energy at 298.15K-151.145255
HF Energy-151.137188
Nuclear repulsion energy83.258981
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/6-31G**
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 3526 3352 0.55      
2 A1 3102 2948 40.54      
3 A1 1674 1591 44.21      
4 A1 1507 1432 0.12      
5 A1 1124 1068 39.26      
6 A1 885 841 1.72      
7 A1 465 442 5.78      
8 A2 3621 3442 0.00      
9 A2 1412 1342 0.00      
10 A2 1077 1024 0.00      
11 A2 286 272 0.00      
12 B1 3619 3439 0.06      
13 B1 3150 2994 28.87      
14 B1 1376 1308 0.24      
15 B1 859 816 0.62      
16 B1 421 400 104.74      
17 B2 3528 3353 0.01      
18 B2 1666 1583 4.14      
19 B2 1409 1339 23.64      
20 B2 1122 1066 81.89      
21 B2 793 753 435.98      

Unscaled Zero Point Vibrational Energy (zpe) 18310.7 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 17402.5 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/6-31G**
ABC
1.18090 0.30434 0.27551

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.553
N2 0.000 1.257 -0.184
N3 0.000 -1.257 -0.184
H4 0.879 0.000 1.204
H5 -0.879 0.000 1.204
H6 0.816 1.309 -0.788
H7 -0.816 1.309 -0.788
H8 -0.816 -1.309 -0.788
H9 0.816 -1.309 -0.788

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5 H6 H7 H8 H9
C11.45711.45711.09381.09382.04422.04422.04422.0442
N21.45712.51362.06872.06871.01631.01632.75972.7597
N31.45712.51362.06872.06872.75972.75971.01631.0163
H41.09382.06872.06871.75772.38492.92502.92502.3849
H51.09382.06872.06871.75772.92502.38492.38492.9250
H62.04421.01632.75972.38492.92501.63163.08562.6189
H72.04421.01632.75972.92502.38491.63162.61893.0856
H82.04422.75971.01632.92502.38493.08562.61891.6316
H92.04422.75971.01632.38492.92502.61893.08561.6316

picture of diaminomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H6 110.201 C1 N2 H7 110.201
C1 N3 H8 110.201 C1 N3 H9 110.201
N2 C1 N3 119.209 N2 C1 H4 107.531
N2 C1 H5 107.531 N3 C1 H4 107.531
N3 C1 H5 107.531 H4 C1 H5 106.927
H6 N2 H7 106.771 H8 N3 H9 106.771
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.006      
2 N -0.628      
3 N -0.628      
4 H 0.136      
5 H 0.136      
6 H 0.247      
7 H 0.247      
8 H 0.247      
9 H 0.247      


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 -2.046 2.046
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.725 0.000 0.000
y 0.000 -26.042 0.000
z 0.000 0.000 -17.814
Traceless
 xyz
x 5.203 0.000 0.000
y 0.000 -8.773 0.000
z 0.000 0.000 3.569
Polar
3z2-r27.139
x2-y29.318
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.998 0.000 0.000
y 0.000 3.869 0.000
z 0.000 0.000 3.721


<r2> (average value of r2) Å2
<r2> 53.487
(<r2>)1/2 7.313