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

using model chemistry: PBE1PBE/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 PBE1PBE/TZVP
 hartrees
Energy at 0K-96.267899
Energy at 298.15K-96.275018
HF Energy-96.267899
Nuclear repulsion energy47.557014
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 PBE1PBE/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 3075 2951 78.43      
2 A1 2831 2717 4.33      
3 A1 1368 1312 64.59      
4 A1 1270 1219 269.63      
5 A1 938 901 46.85      
6 A2 286 274 0.00      
7 E 3174 3046 3.48      
7 E 3174 3046 3.47      
8 E 2465 2365 4428.49      
8 E 2465 2365 4427.80      
9 E 1481 1421 1.48      
9 E 1481 1421 1.49      
10 E 1361 1306 0.40      
10 E 1361 1306 0.39      
11 E 1211 1162 57.98      
11 E 1211 1162 58.02      
12 E 870 835 114.13      
12 E 870 835 114.33      

Unscaled Zero Point Vibrational Energy (zpe) 15446.4 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 14822.4 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 PBE1PBE/TZVP
ABC
2.71823 0.67690 0.67690

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.792
N2 0.000 0.000 0.703
H3 0.000 -1.035 -1.130
H4 -0.897 0.518 -1.130
H5 0.897 0.518 -1.130
H6 0.000 0.990 1.075
H7 -0.857 -0.495 1.075
H8 0.857 -0.495 1.075

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 H6 H7 H8
C11.49481.08901.08901.08902.11372.11372.1137
N21.49482.10512.10512.10511.05761.05761.0576
H31.08902.10511.79311.79312.99432.42742.4274
H41.08902.10511.79311.79312.42742.42742.9943
H51.08902.10511.79311.79312.42742.99432.4274
H62.11371.05762.99432.42742.42741.71421.7142
H72.11371.05762.42742.42742.99431.71421.7142
H82.11371.05762.42742.99432.42741.71421.7142

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 110.646 C1 N2 H7 110.646
C1 N2 H8 110.646 N2 C1 H3 108.089
N2 C1 H4 108.089 N2 C1 H5 108.089
H3 C1 H4 110.817 H3 C1 H5 110.817
H4 C1 H5 110.817 H6 N2 H7 108.272
H6 N2 H8 108.272 H7 N2 H8 108.272
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.158      
2 N 0.319      
3 H 0.083      
4 H 0.083      
5 H 0.083      
6 H -0.137      
7 H -0.137      
8 H -0.137      


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 -1.516 1.516
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.124 0.000 0.000
y 0.000 -19.124 0.000
z 0.000 0.000 -18.213
Traceless
 xyz
x -0.455 0.000 0.000
y 0.000 -0.455 0.000
z 0.000 0.000 0.910
Polar
3z2-r21.821
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 16.172 0.000 0.000
y 0.000 16.175 -0.003
z 0.000 -0.003 8.990


<r2> (average value of r2) Å2
<r2> 32.433
(<r2>)1/2 5.695