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

using model chemistry: B1B95/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 2A1
Energy calculated at B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-96.265142
Energy at 298.15K-96.271352
HF Energy-96.265142
Nuclear repulsion energy47.253978
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 B1B95/6-31G(2df,p)
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 3074 2944 63.47      
2 A1 2524 2417 96.64      
3 A1 1303 1248 133.30      
4 A1 1125 1078 12.47      
5 A1 863 827 32.50      
6 A2 278 266 0.00      
7 E 3179 3044 14.09      
7 E 3179 3044 14.10      
8 E 1638 1569 2375.22      
8 E 1638 1569 2376.46      
9 E 1459 1397 97.27      
9 E 1459 1397 97.12      
10 E 1212 1161 10.13      
10 E 1212 1161 10.13      
11 E 847 811 9.93      
11 E 847 811 9.92      
12 E 322 309 2718.62      
12 E 322 309 2721.03      

Unscaled Zero Point Vibrational Energy (zpe) 13239.7 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 12679.6 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 B1B95/6-31G(2df,p)
ABC
2.60100 0.67896 0.67896

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

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 0.708
H3 0.000 -1.038 -1.118
H4 -0.899 0.519 -1.118
H5 0.899 0.519 -1.118
H6 0.000 1.032 1.047
H7 -0.894 -0.516 1.047
H8 0.894 -0.516 1.047

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49751.08871.08871.08872.10682.10682.1068
N21.49752.10002.10002.10001.08661.08661.0866
H31.08872.10001.79821.79822.99532.39932.3993
H41.08872.10001.79821.79822.39932.39932.9953
H51.08872.10001.79821.79822.39932.99532.3993
H62.10681.08662.99532.39932.39931.78821.7882
H72.10681.08662.39932.39932.99531.78821.7882
H82.10681.08662.39932.99532.39931.78821.7882

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 108.176 C1 N2 H7 108.176
C1 N2 H8 108.176 N2 C1 H3 107.530
N2 C1 H4 107.530 N2 C1 H5 107.530
H3 C1 H4 111.340 H3 C1 H5 111.340
H4 C1 H5 111.341 H6 N2 H7 110.735
H6 N2 H8 110.735 H7 N2 H8 110.735
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.329      
2 N -0.128      
3 H 0.132      
4 H 0.132      
5 H 0.132      
6 H 0.020      
7 H 0.020      
8 H 0.020      


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 -0.896 0.896
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.756 0.000 0.000
y 0.000 -16.756 0.000
z 0.000 0.000 -16.406
Traceless
 xyz
x -0.175 0.000 0.000
y 0.000 -0.175 0.000
z 0.000 0.000 0.351
Polar
3z2-r20.701
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 8.337 0.000 0.000
y 0.000 8.334 0.000
z 0.000 0.000 5.524


<r2> (average value of r2) Å2
<r2> 31.107
(<r2>)1/2 5.577