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

using model chemistry: mPW1PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at mPW1PW91/6-31+G**
 hartrees
Energy at 0K-96.349224
Energy at 298.15K-96.356381
HF Energy-96.349224
Nuclear repulsion energy47.749663
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 mPW1PW91/6-31+G**
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 3100 2951 60.64      
2 A1 2996 2852 24.77      
3 A1 1402 1334 68.56      
4 A1 1319 1255 730.86      
5 A1 960 914 94.68      
6 A2 296 282 0.00      
7 E 3205 3051 1.29      
7 E 3205 3051 1.30      
8 E 2901 2761 1562.62      
8 E 2901 2761 1564.33      
9 E 1500 1427 132.53      
9 E 1500 1427 132.62      
10 E 1487 1415 2.07      
10 E 1487 1415 2.10      
11 E 1241 1182 2.22      
11 E 1241 1182 2.23      
12 E 883 841 88.68      
12 E 883 841 88.88      

Unscaled Zero Point Vibrational Energy (zpe) 16253.1 cm-1
Scaled (by 0.9518) Zero Point Vibrational Energy (zpe) 15469.7 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 mPW1PW91/6-31+G**
ABC
2.76525 0.67928 0.67928

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.790
N2 0.000 0.000 0.700
H3 0.000 -1.034 -1.133
H4 -0.895 0.517 -1.133
H5 0.895 0.517 -1.133
H6 0.000 0.973 1.082
H7 -0.843 -0.487 1.082
H8 0.843 -0.487 1.082

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49001.08931.08931.08932.11002.11002.1100
N21.49002.10422.10422.10421.04561.04561.0456
H31.08932.10421.79091.79092.98902.43222.4322
H41.08932.10421.79091.79092.43222.43222.9890
H51.08932.10421.79091.79092.43222.98902.4322
H62.11001.04562.98902.43222.43221.68571.6857
H72.11001.04562.43222.43222.98901.68571.6857
H82.11001.04562.43222.98902.43221.68571.6857

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 111.441 C1 N2 H7 111.441
C1 N2 H8 111.441 N2 C1 H3 108.335
N2 C1 H4 108.335 N2 C1 H5 108.335
H3 C1 H4 110.583 H3 C1 H5 110.583
H4 C1 H5 110.583 H6 N2 H7 107.432
H6 N2 H8 107.432 H7 N2 H8 107.432
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -1.819      
2 N 0.237      
3 H 0.210      
4 H 0.210      
5 H 0.210      
6 H 0.317      
7 H 0.317      
8 H 0.317      


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 -1.478 1.478
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.504 0.000 0.000
y 0.000 -21.504 0.000
z 0.000 0.000 -20.074
Traceless
 xyz
x -0.715 0.000 0.000
y 0.000 -0.715 0.000
z 0.000 0.000 1.430
Polar
3z2-r22.861
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 27.101 0.000 0.000
y 0.000 27.067 0.006
z 0.000 0.006 17.217


<r2> (average value of r2) Å2
<r2> 33.719
(<r2>)1/2 5.807