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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: TPSSh/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/3-21G
 hartrees
Energy at 0K-168.847317
Energy at 298.15K-168.850870
HF Energy-168.847317
Nuclear repulsion energy68.027255
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 TPSSh/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3168 3069 9.68      
2 A' 3043 2948 0.60      
3 A' 1525 1477 14.03      
4 A' 1392 1348 3.58      
5 A' 1325 1284 46.81      
6 A' 1112 1077 20.53      
7 A' 729 707 28.33      
8 A' 521 505 0.69      
9 A" 3125 3027 6.22      
10 A" 1518 1471 12.99      
11 A" 951 922 0.30      
12 A" 136 132 2.48      

Unscaled Zero Point Vibrational Energy (zpe) 9272.0 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 8982.7 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 TPSSh/3-21G
ABC
1.83396 0.36400 0.32228

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.988 -0.572 0.000
N2 0.000 0.614 0.000
O3 1.199 0.195 0.000
H4 -0.432 -1.511 0.000
H5 -1.616 -0.457 0.890
H6 -1.616 -0.457 -0.890

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.54412.31831.09181.09571.0957
N21.54411.27072.16912.13372.1337
O32.31831.27072.36073.02433.0243
H41.09182.16912.36071.81881.8188
H51.09572.13373.02431.81881.7809
H61.09572.13373.02431.81881.7809

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 110.526 N2 C1 H4 109.561
N2 C1 H5 106.623 N2 C1 H6 106.623
H4 C1 H5 112.494 H4 C1 H6 112.494
H5 C1 H6 108.714
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.498      
2 N 0.036      
3 O -0.256      
4 H 0.230      
5 H 0.244      
6 H 0.244      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.022 -1.380 0.000 2.449
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.056 0.277 0.000
y 0.277 2.459 0.000
z 0.000 0.000 2.101


<r2> (average value of r2) Å2
<r2> 43.081
(<r2>)1/2 6.564