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All results from a given calculation for CH3NH3 (methyl ammonium radical)

using model chemistry: LSDA/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at LSDA/6-311+G(3df,2p)
 hartrees
Energy at 0K-95.906464
Energy at 298.15K-95.913571
HF Energy-95.906464
Nuclear repulsion energy47.738923
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 LSDA/6-311+G(3df,2p)
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 2982 2982 55.41      
2 A1 2876 2876 3.55      
3 A1 1322 1322 33.58      
4 A1 1238 1238 431.48      
5 A1 979 979 63.63      
6 A2 295 295 0.00      
7 E 3075 3075 0.03      
7 E 3075 3075 0.03      
8 E 2732 2732 1190.80      
8 E 2732 2732 1192.20      
9 E 1402 1402 18.31      
9 E 1402 1402 18.46      
10 E 1374 1374 30.45      
10 E 1374 1374 30.54      
11 E 1191 1191 0.19      
11 E 1191 1191 0.20      
12 E 841 841 86.06      
12 E 841 841 86.36      

Unscaled Zero Point Vibrational Energy (zpe) 15459.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 15459.4 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 LSDA/6-311+G(3df,2p)
ABC
2.70768 0.68821 0.68821

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.781
N2 0.000 0.000 0.694
H3 0.000 -1.040 -1.128
H4 -0.901 0.520 -1.128
H5 0.901 0.520 -1.128
H6 0.000 0.988 1.072
H7 -0.856 -0.494 1.072
H8 0.856 -0.494 1.072

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.47501.09671.09671.09672.10012.10012.1001
N21.47502.09782.09782.09781.05811.05811.0581
H31.09672.09781.80211.80212.99232.42272.4227
H41.09672.09781.80211.80212.42272.42272.9923
H51.09672.09781.80211.80212.42272.99232.4227
H62.10011.05812.99232.42272.42271.71171.7117
H72.10011.05812.42272.42272.99231.71171.7117
H82.10011.05812.42272.99232.42271.71171.7117

picture of methyl ammonium radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H6 110.932 C1 N2 H7 110.932
C1 N2 H8 110.932 N2 C1 H3 108.424
N2 C1 H4 108.424 N2 C1 H5 108.424
H3 C1 H4 110.498 H3 C1 H5 110.498
H4 C1 H5 110.498 H6 N2 H7 107.972
H6 N2 H8 107.972 H7 N2 H8 107.971
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.498      
2 N 0.269      
3 H 0.220      
4 H 0.220      
5 H 0.220      
6 H 0.189      
7 H 0.189      
8 H 0.189      


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 -1.033 1.033
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.989 0.000 0.000
y 0.000 -21.989 0.000
z 0.000 0.000 -18.788
Traceless
 xyz
x -1.601 0.000 0.000
y 0.000 -1.601 0.000
z 0.000 0.000 3.201
Polar
3z2-r26.403
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 25.041 0.000 0.000
y 0.000 24.987 0.012
z 0.000 0.012 15.330


<r2> (average value of r2) Å2
<r2> 33.538
(<r2>)1/2 5.791