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

using model chemistry: mPW1PW91/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 mPW1PW91/aug-cc-pVTZ
 hartrees
Energy at 0K-96.384452
Energy at 298.15K-96.391601
HF Energy-96.384452
Nuclear repulsion energy47.838198
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/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 3086 2957 71.42      
2 A1 3041 2913 113.63      
3 A1 1409 1350 0.00      
4 A1 1364 1307 897.49      
5 A1 964 923 72.17      
6 A2 276 265 0.00      
7 E 3184 3050 0.61      
7 E 3184 3050 0.63      
8 E 2926 2803 3895.18      
8 E 2926 2803 3899.99      
9 E 1498 1435 205.44      
9 E 1498 1435 205.26      
10 E 1478 1416 46.84      
10 E 1478 1416 46.85      
11 E 1250 1197 0.08      
11 E 1250 1197 0.09      
12 E 887 850 147.69      
12 E 887 850 147.48      

Unscaled Zero Point Vibrational Energy (zpe) 16291.9 cm-1
Scaled (by 0.9581) Zero Point Vibrational Energy (zpe) 15609.3 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/aug-cc-pVTZ
ABC
2.78498 0.67972 0.67972

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.791
N2 0.000 0.000 0.700
H3 0.000 -1.031 -1.131
H4 -0.893 0.516 -1.131
H5 0.893 0.516 -1.131
H6 0.000 0.969 1.079
H7 -0.839 -0.484 1.079
H8 0.839 -0.484 1.079

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49171.08591.08591.08592.10662.10662.1066
N21.49172.10202.10202.10201.04021.04021.0402
H31.08592.10201.78621.78622.98112.42682.4268
H41.08592.10201.78621.78622.42682.42682.9811
H51.08592.10201.78621.78622.42682.98112.4268
H62.10661.04022.98112.42682.42681.67791.6779
H72.10661.04022.42682.42682.98111.67791.6779
H82.10661.04022.42682.98112.42681.67791.6779

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 111.363 C1 N2 H7 111.363
C1 N2 H8 111.363 N2 C1 H3 108.242
N2 C1 H4 108.242 N2 C1 H5 108.242
H3 C1 H4 110.672 H3 C1 H5 110.672
H4 C1 H5 110.672 H6 N2 H7 107.515
H6 N2 H8 107.515 H7 N2 H8 107.515
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.250      
2 N -0.096      
3 H 0.246      
4 H 0.246      
5 H 0.246      
6 H -0.131      
7 H -0.131      
8 H -0.131      


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 -2.785 2.785
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.099 0.000 0.000
y 0.000 -24.099 0.000
z 0.000 0.000 -23.039
Traceless
 xyz
x -0.530 0.000 0.000
y 0.000 -0.530 0.000
z 0.000 0.000 1.060
Polar
3z2-r22.120
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 52.733 0.000 0.000
y 0.000 52.680 -0.020
z 0.000 -0.020 29.895


<r2> (average value of r2) Å2
<r2> 35.362
(<r2>)1/2 5.947