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

using model chemistry: LSDA/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-95.915337
Energy at 298.15K-95.922424
HF Energy-95.915337
Nuclear repulsion energy47.692106
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/aug-cc-pVTZ
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 2986 2958 85.06      
2 A1 2896 2869 26.93      
3 A1 1325 1312 9.49      
4 A1 1276 1264 557.66      
5 A1 975 966 67.53      
6 A2 273 271 0.00      
7 E 3083 3054 1.80      
7 E 3083 3054 1.80      
8 E 2756 2730 2159.11      
8 E 2756 2730 2160.63      
9 E 1405 1392 26.59      
9 E 1405 1392 26.66      
10 E 1376 1363 63.38      
10 E 1376 1363 63.25      
11 E 1190 1178 0.30      
11 E 1190 1178 0.31      
12 E 843 835 90.20      
12 E 843 835 90.11      

Unscaled Zero Point Vibrational Energy (zpe) 15516.5 cm-1
Scaled (by 0.9906) Zero Point Vibrational Energy (zpe) 15370.6 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/aug-cc-pVTZ
ABC
2.71391 0.68519 0.68519

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.784
N2 0.000 0.000 0.695
H3 0.000 -1.040 -1.130
H4 -0.901 0.520 -1.130
H5 0.901 0.520 -1.130
H6 0.000 0.986 1.076
H7 -0.854 -0.493 1.076
H8 0.854 -0.493 1.076

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.47871.09651.09651.09652.10522.10522.1052
N21.47872.10072.10072.10071.05711.05711.0571
H31.09652.10071.80201.80202.99572.42832.4283
H41.09652.10071.80201.80202.42832.42832.9957
H51.09652.10071.80201.80202.42832.99572.4283
H62.10521.05712.99572.42832.42831.70771.7077
H72.10521.05712.42832.42832.99571.70771.7077
H82.10521.05712.42832.99572.42831.70771.7077

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 111.148 C1 N2 H7 111.148
C1 N2 H8 111.148 N2 C1 H3 108.410
N2 C1 H4 108.410 N2 C1 H5 108.410
H3 C1 H4 110.511 H3 C1 H5 110.511
H4 C1 H5 110.511 H6 N2 H7 107.744
H6 N2 H8 107.744 H7 N2 H8 107.744
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.424      
2 N -0.002      
3 H 0.225      
4 H 0.225      
5 H 0.225      
6 H -0.083      
7 H -0.083      
8 H -0.083      


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 -2.122 2.122
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.405 0.000 0.000
y 0.000 -23.405 0.000
z 0.000 0.000 -21.489
Traceless
 xyz
x -0.958 0.000 0.000
y 0.000 -0.958 0.000
z 0.000 0.000 1.915
Polar
3z2-r23.831
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 38.488 0.000 0.000
y 0.000 38.470 -0.005
z 0.000 -0.005 24.362


<r2> (average value of r2) Å2
<r2> 34.756
(<r2>)1/2 5.895