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

using model chemistry: B3PW91/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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-244.938210
Energy at 298.15K 
HF Energy-244.938210
Nuclear repulsion energy125.170536
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 B3PW91/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' 3199 3087 1.09      
2 A' 3089 2981 0.45      
3 A' 1467 1416 97.18      
4 A' 1440 1390 31.97      
5 A' 1375 1327 8.75      
6 A' 1116 1077 2.44      
7 A' 948 915 19.07      
8 A' 677 653 19.17      
9 A' 619 597 5.21      
10 A" 3231 3118 0.04      
11 A" 1714 1654 272.30      
12 A" 1431 1381 30.60      
13 A" 1090 1052 6.67      
14 A" 482 465 0.46      
15 A" 28 27 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 10953.1 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 10569.7 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 B3PW91/cc-pVDZ
ABC
0.41166 0.35399 0.19754

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.317 0.000
N2 -0.011 0.176 0.000
H3 1.055 -1.626 0.000
H4 -0.495 -1.664 0.912
H5 -0.495 -1.664 -0.912
O6 0.001 0.727 -1.085
O7 0.001 0.727 1.085

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49321.09831.09441.09442.31432.3143
N21.49322.09312.10952.10951.21691.2169
H31.09832.09311.79891.79892.79682.7968
H41.09442.10951.79891.82433.15422.4475
H51.09442.10951.79891.82432.44753.1542
O62.31431.21692.79683.15422.44752.1699
O72.31431.21692.79682.44753.15422.1699

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 116.918 C1 N2 O7 116.918
N2 C1 H3 106.748 N2 C1 H4 108.227
N2 C1 H5 108.227 H3 C1 H4 110.251
H3 C1 H5 110.251 H4 C1 H5 112.905
O6 N2 O7 126.138
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.034      
2 N 0.212      
3 H 0.099      
4 H 0.082      
5 H 0.082      
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
  0.062 -3.400 0.000 3.400
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.083 -0.127 0.000
y -0.127 -21.736 0.000
z 0.000 0.000 -25.869
Traceless
 xyz
x 2.720 -0.127 0.000
y -0.127 1.740 0.000
z 0.000 0.000 -4.460
Polar
3z2-r2-8.920
x2-y20.653
xy-0.127
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.454 -0.012 0.000
y -0.012 3.888 0.000
z 0.000 0.000 4.728


<r2> (average value of r2) Å2
<r2> 63.662
(<r2>)1/2 7.979