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: B97D3/cc-pVTZ

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 B97D3/cc-pVTZ
 hartrees
Energy at 0K-244.978486
Energy at 298.15K 
HF Energy-244.978486
Nuclear repulsion energy124.370087
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 B97D3/cc-pVTZ
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' 3121 3077 4.00      
2 A' 3028 2985 1.59      
3 A' 1447 1427 9.90      
4 A' 1380 1360 24.79      
5 A' 1346 1327 93.10      
6 A' 1101 1086 0.88      
7 A' 888 876 22.23      
8 A' 635 626 9.68      
9 A' 595 587 4.21      
10 A" 3150 3106 2.06      
11 A" 1580 1558 260.06      
12 A" 1433 1413 40.13      
13 A" 1079 1064 9.12      
14 A" 469 463 0.60      
15 A" 38i 37i 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 10606.7 cm-1
Scaled (by 0.986) Zero Point Vibrational Energy (zpe) 10458.2 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 B97D3/cc-pVTZ
ABC
0.40757 0.34726 0.19444

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 -1.334 0.000
N2 -0.010 0.179 0.000
H3 1.049 -1.636 0.000
H4 -0.494 -1.675 0.907
H5 -0.494 -1.675 -0.907
O6 0.000 0.733 -1.091
O7 0.000 0.733 1.091

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.51291.09171.08801.08802.33732.3373
N21.51292.10132.11992.11991.22401.2240
H31.09172.10131.79081.79082.81122.8112
H41.08802.11991.79081.81473.16802.4649
H51.08802.11991.79081.81472.46493.1680
O62.33731.22402.81123.16802.46492.1826
O72.33731.22402.81122.46493.16802.1826

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 116.912 C1 N2 O7 116.912
N2 C1 H3 106.443 N2 C1 H4 108.071
N2 C1 H5 108.071 H3 C1 H4 110.485
H3 C1 H5 110.485 H4 C1 H5 113.011
O6 N2 O7 126.157
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.148      
2 N 0.319      
3 H 0.116      
4 H 0.110      
5 H 0.110      
6 O -0.254      
7 O -0.254      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.037 -3.302 0.000 3.302
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.367 -0.086 0.000
y -0.086 -21.990 0.000
z 0.000 0.000 -26.061
Traceless
 xyz
x 2.659 -0.086 0.000
y -0.086 1.724 0.000
z 0.000 0.000 -4.383
Polar
3z2-r2-8.765
x2-y20.623
xy-0.086
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.000 -0.024 0.000
y -0.024 4.666 0.000
z 0.000 0.000 5.261


<r2> (average value of r2) Å2
<r2> 64.527
(<r2>)1/2 8.033