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

using model chemistry: LSDA/TZVP

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/TZVP
 hartrees
Energy at 0K-95.896477
Energy at 298.15K-95.903538
HF Energy-95.896477
Nuclear repulsion energy47.448360
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/TZVP
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 2981 2946 89.11      
2 A1 2737 2705 17.74      
3 A1 1296 1281 90.27      
4 A1 1210 1196 181.30      
5 A1 944 933 43.34      
6 A2 284 281 0.00      
7 E 3078 3042 6.24      
7 E 3078 3042 6.23      
8 E 2435 2407 2238.62      
8 E 2435 2407 2238.82      
9 E 1403 1387 4.38      
9 E 1403 1387 4.37      
10 E 1281 1266 1.17      
10 E 1281 1266 1.17      
11 E 1162 1148 25.85      
11 E 1162 1148 25.84      
12 E 833 823 73.84      
12 E 833 823 73.79      

Unscaled Zero Point Vibrational Energy (zpe) 14916.5 cm-1
Scaled (by 0.9884) Zero Point Vibrational Energy (zpe) 14743.5 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 LSDA/TZVP
ABC
2.65970 0.68184 0.68184

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.786
N2 0.000 0.000 0.698
H3 0.000 -1.044 -1.128
H4 -0.904 0.522 -1.128
H5 0.904 0.522 -1.128
H6 0.000 1.004 1.072
H7 -0.869 -0.502 1.072
H8 0.869 -0.502 1.072

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.48381.09821.09821.09822.11212.11212.1121
N21.48382.10292.10292.10291.07121.07121.0712
H31.09822.10291.80761.80763.00542.42702.4270
H41.09822.10291.80761.80762.42702.42703.0054
H51.09822.10291.80761.80762.42703.00542.4270
H62.11211.07123.00542.42702.42701.73831.7383
H72.11211.07122.42702.42703.00541.73831.7383
H82.11211.07122.42703.00542.42701.73831.7383

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 110.471 C1 N2 H7 110.471
C1 N2 H8 110.471 N2 C1 H3 108.139
N2 C1 H4 108.139 N2 C1 H5 108.139
H3 C1 H4 110.770 H3 C1 H5 110.770
H4 C1 H5 110.770 H6 N2 H7 108.453
H6 N2 H8 108.453 H7 N2 H8 108.453
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.299      
2 N 0.169      
3 H 0.119      
4 H 0.119      
5 H 0.119      
6 H -0.075      
7 H -0.075      
8 H -0.075      


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 -1.168 1.168
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.157 0.000 0.000
y 0.000 -19.157 0.000
z 0.000 0.000 -18.015
Traceless
 xyz
x -0.571 0.000 0.000
y 0.000 -0.571 0.000
z 0.000 0.000 1.142
Polar
3z2-r22.284
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 13.101 0.000 0.000
y 0.000 13.101 -0.001
z 0.000 -0.001 9.045


<r2> (average value of r2) Å2
<r2> 32.398
(<r2>)1/2 5.692