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

using model chemistry: ROHF/6-31G

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/6-31G
 hartrees
Energy at 0K-95.594917
Energy at 298.15K 
HF Energy-95.594917
Nuclear repulsion energy47.401059
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/6-31G
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 3247 2907 29.92      
2 A1 2768 2479 34.29      
3 A1 1530 1370 49.64      
4 A1 1304 1167 61.45      
5 A1 932 834 23.39      
6 A2 275 246 0.00      
7 E 3346 2996 10.62      
7 E 3346 2996 10.62      
8 E 1650 1477 1.20      
8 E 1650 1477 1.20      
9 E 1444 1293 1102.17      
9 E 1444 1293 1102.17      
10 E 1356 1214 172.95      
10 E 1356 1214 172.95      
11 E 1024 917 496.46      
11 E 1024 917 496.46      
12 E 968i 867i 14643.43      
12 E 968i 867i 14643.44      

Unscaled Zero Point Vibrational Energy (zpe) 12879.9 cm-1
Scaled (by 0.8953) Zero Point Vibrational Energy (zpe) 11531.3 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 ROHF/6-31G
ABC
2.73609 0.66768 0.66768

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.799
N2 0.000 0.000 0.709
H3 0.000 -1.022 -1.139
H4 -0.885 0.511 -1.139
H5 0.885 0.511 -1.139
H6 0.000 0.996 1.084
H7 -0.863 -0.498 1.084
H8 0.863 -0.498 1.084

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.50781.07731.07731.07732.13022.13022.1302
N21.50782.11152.11152.11151.06451.06451.0645
H31.07732.11151.77081.77083.00252.44122.4412
H41.07732.11151.77081.77082.44122.44123.0025
H51.07732.11151.77081.77082.44123.00252.4412
H62.13021.06453.00252.44122.44121.72561.7256
H72.13021.06452.44122.44123.00251.72561.7256
H82.13021.06452.44123.00252.44121.72561.7256

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 110.633 C1 N2 H7 110.633
C1 N2 H8 110.633 N2 C1 H3 108.380
N2 C1 H4 108.380 N2 C1 H5 108.380
H3 C1 H4 110.540 H3 C1 H5 110.540
H4 C1 H5 110.540 H6 N2 H7 108.285
H6 N2 H8 108.285 H7 N2 H8 108.285
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.294      
2 N -0.498      
3 H 0.176      
4 H 0.176      
5 H 0.176      
6 H 0.088      
7 H 0.088      
8 H 0.088      


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 -1.444 1.444
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.216 0.000 0.000
y 0.000 -17.209 0.006
z 0.000 0.006 -16.971
Traceless
 xyz
x -0.126 0.000 0.000
y 0.000 -0.115 0.006
z 0.000 0.006 0.241
Polar
3z2-r20.482
x2-y2-0.007
xy0.000
xz0.000
yz0.006


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> 31.575
(<r2>)1/2 5.619