return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH3NO2 (Methane, nitro-)

using model chemistry: M06-2X/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS Os out of place 1A'
Energy calculated at M06-2X/aug-cc-pVDZ
 hartrees
Energy at 0K-244.951509
Energy at 298.15K 
HF Energy-244.951509
Nuclear repulsion energy125.522955
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 M06-2X/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3216 3216 0.94      
2 A' 3109 3109 0.48      
3 A' 1523 1523 87.87      
4 A' 1449 1449 14.51      
5 A' 1398 1398 7.66      
6 A' 1132 1132 1.48      
7 A' 971 971 8.48      
8 A' 688 688 25.41      
9 A' 623 623 4.93      
10 A" 3240 3240 0.08      
11 A" 1739 1739 418.56      
12 A" 1444 1444 33.69      
13 A" 1115 1115 11.36      
14 A" 491 491 1.50      
15 A" 108i 108i 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11015.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11015.7 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 M06-2X/aug-cc-pVDZ
ABC
0.41598 0.35423 0.19859

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 -1.320 0.000
N2 -0.011 0.172 0.000
H3 1.054 -1.615 0.000
H4 -0.495 -1.653 0.912
H5 -0.495 -1.653 -0.912
O6 0.000 0.727 -1.079
O7 0.000 0.727 1.079

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49161.09421.09051.09052.31372.3137
N21.49162.08012.09712.09711.21341.2134
H31.09422.08011.79821.79822.78562.7856
H41.09052.09711.79821.82473.14272.4371
H51.09052.09711.79821.82472.43713.1427
O62.31371.21342.78563.14272.43712.1577
O72.31371.21342.78562.43713.14272.1577

picture of Methane, nitro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O6 117.229 C1 N2 O7 117.229
N2 C1 H3 106.090 N2 C1 H4 107.608
N2 C1 H5 107.608 H3 C1 H4 110.787
H3 C1 H5 110.787 H4 C1 H5 113.576
O6 N2 O7 125.520
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.090      
2 N 0.612      
3 H -0.117      
4 H -0.201      
5 H -0.201      
6 O -0.591      
7 O -0.591      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.018 -3.717 0.000 3.717
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.806 -0.070 0.000
y -0.070 -22.262 0.000
z 0.000 0.000 -26.593
Traceless
 xyz
x 2.621 -0.070 0.000
y -0.070 1.938 0.000
z 0.000 0.000 -4.559
Polar
3z2-r2-9.118
x2-y20.455
xy-0.070
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.408 -0.032 0.000
y -0.032 4.931 0.000
z 0.000 0.000 5.637


<r2> (average value of r2) Å2
<r2> 63.790
(<r2>)1/2 7.987