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

using model chemistry: ROHF/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 ROHF/TZVP
 hartrees
Energy at 0K-95.715566
Energy at 298.15K-95.722840
HF Energy-95.715566
Nuclear repulsion energy48.058790
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 ROHF/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 3219 3219 40.42      
2 A1 3185 3185 6.58      
3 A1 1532 1532 4.19      
4 A1 1468 1468 402.24      
5 A1 1014 1014 54.21      
6 A2 319 319 0.00      
7 E 3311 3311 0.30      
7 E 3311 3311 0.30      
8 E 2923 2923 5650.24      
8 E 2923 2923 5650.25      
9 E 1624 1624 40.35      
9 E 1624 1624 40.35      
10 E 1598 1598 233.90      
10 E 1598 1598 233.90      
11 E 1350 1350 14.04      
11 E 1350 1350 14.03      
12 E 953 953 195.41      
12 E 953 953 195.42      

Unscaled Zero Point Vibrational Energy (zpe) 17127.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17127.1 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 ROHF/TZVP
ABC
2.83678 0.68225 0.68225

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

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 0.699
H3 0.000 -1.024 -1.130
H4 -0.886 0.512 -1.130
H5 0.886 0.512 -1.130
H6 0.000 0.958 1.080
H7 -0.830 -0.479 1.080
H8 0.830 -0.479 1.080

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.48981.07851.07851.07852.10182.10182.1018
N21.48982.09652.09652.09651.03101.03101.0310
H31.07852.09651.77281.77282.96872.42312.4231
H41.07852.09651.77281.77282.42312.42312.9687
H51.07852.09651.77281.77282.42312.96872.4231
H62.10181.03102.96872.42312.42311.65941.6594
H72.10181.03102.42312.42312.96871.65941.6594
H82.10181.03102.42312.96872.42311.65941.6594

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 111.684 C1 N2 H7 111.684
C1 N2 H8 111.684 N2 C1 H3 108.364
N2 C1 H4 108.364 N2 C1 H5 108.364
H3 C1 H4 110.556 H3 C1 H5 110.556
H4 C1 H5 110.556 H6 N2 H7 107.171
H6 N2 H8 107.171 H7 N2 H8 107.171
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.007      
2 N 0.455      
3 H 0.045      
4 H 0.045      
5 H 0.045      
6 H -0.199      
7 H -0.199      
8 H -0.199      


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 -2.052 2.052
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.526 0.000 0.000
y 0.000 -19.521 0.004
z 0.000 0.004 -19.074
Traceless
 xyz
x -0.228 0.000 0.000
y 0.000 -0.222 0.004
z 0.000 0.004 0.450
Polar
3z2-r20.899
x2-y2-0.004
xy0.000
xz0.000
yz0.004


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 32.503
(<r2>)1/2 5.701