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

using model chemistry: mPW1PW91/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 mPW1PW91/TZVP
 hartrees
Energy at 0K-96.363932
Energy at 298.15K-96.371052
HF Energy-96.363932
Nuclear repulsion energy47.572080
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/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 3082 2940 76.54      
2 A1 2835 2705 2.60      
3 A1 1374 1311 60.11      
4 A1 1272 1213 278.39      
5 A1 933 890 46.27      
6 A2 285 272 0.00      
7 E 3180 3034 3.38      
7 E 3180 3034 3.36      
8 E 2467 2354 4418.92      
8 E 2467 2354 4420.54      
9 E 1487 1419 1.53      
9 E 1487 1419 1.53      
10 E 1366 1303 0.46      
10 E 1366 1303 0.45      
11 E 1214 1158 57.11      
11 E 1214 1158 57.16      
12 E 873 833 109.91      
12 E 873 833 109.76      

Unscaled Zero Point Vibrational Energy (zpe) 15477.8 cm-1
Scaled (by 0.954) Zero Point Vibrational Energy (zpe) 14765.8 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/TZVP
ABC
2.72554 0.67647 0.67647

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.793
N2 0.000 0.000 0.703
H3 0.000 -1.034 -1.131
H4 -0.895 0.517 -1.131
H5 0.895 0.517 -1.131
H6 0.000 0.988 1.076
H7 -0.856 -0.494 1.076
H8 0.856 -0.494 1.076

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49581.08751.08751.08752.11432.11432.1143
N21.49582.10482.10482.10481.05661.05661.0566
H31.08752.10481.79061.79062.99322.42772.4277
H41.08752.10481.79061.79062.42772.42772.9932
H51.08752.10481.79061.79062.42772.99322.4277
H62.11431.05662.99322.42772.42771.71201.7120
H72.11431.05662.42772.42772.99321.71201.7120
H82.11431.05662.42772.99322.42771.71201.7120

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 110.691 C1 N2 H7 110.691
C1 N2 H8 110.691 N2 C1 H3 108.090
N2 C1 H4 108.090 N2 C1 H5 108.090
H3 C1 H4 110.816 H3 C1 H5 110.816
H4 C1 H5 110.816 H6 N2 H7 108.224
H6 N2 H8 108.224 H7 N2 H8 108.224
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.157      
2 N 0.320      
3 H 0.086      
4 H 0.086      
5 H 0.086      
6 H -0.140      
7 H -0.140      
8 H -0.140      


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 -1.573 1.573
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.078 0.000 0.000
y 0.000 -19.078 0.000
z 0.000 0.000 -18.217
Traceless
 xyz
x -0.431 0.000 0.000
y 0.000 -0.431 0.000
z 0.000 0.000 0.861
Polar
3z2-r21.722
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 16.137 0.000 0.000
y 0.000 16.144 -0.002
z 0.000 -0.002 8.888


<r2> (average value of r2) Å2
<r2> 32.413
(<r2>)1/2 5.693