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

using model chemistry: CCD/6-31G(2df,p)

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 CCD/6-31G(2df,p)
 hartrees
Energy at 0K-244.499413
Energy at 298.15K 
HF Energy-243.688230
Nuclear repulsion energy125.848135
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 CCD/6-31G(2df,p)
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' 3241 3069 0.84      
2 A' 3139 2973 0.76      
3 A' 1534 1453 68.48      
4 A' 1503 1423 16.09      
5 A' 1451 1374 2.26      
6 A' 1171 1109 1.12      
7 A' 983 931 6.53      
8 A' 698 661 28.59      
9 A' 635 602 5.67      
10 A" 3269 3096 0.03      
11 A" 1808 1712 323.24      
12 A" 1497 1418 26.94      
13 A" 1142 1082 10.39      
14 A" 492 466 0.89      
15 A" 20i 19i 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11270.5 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 10675.4 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 CCD/6-31G(2df,p)
ABC
0.41622 0.35765 0.19963

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.311 0.000
N2 -0.010 0.174 0.000
H3 1.045 -1.620 0.000
H4 -0.495 -1.650 0.905
H5 -0.495 -1.650 -0.905
O6 0.001 0.723 -1.079
O7 0.001 0.723 1.079

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48541.08911.08581.08582.30322.3032
N21.48542.08122.09292.09291.21101.2110
H31.08912.08121.78651.78652.78302.7830
H41.08582.09291.78651.80973.13282.4308
H51.08582.09291.78651.80972.43083.1328
O62.30321.21102.78303.13282.43082.1583
O72.30321.21102.78302.43083.13282.1583

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 116.974 C1 N2 O7 116.974
N2 C1 H3 106.866 N2 C1 H4 107.967
N2 C1 H5 107.967 H3 C1 H4 110.452
H3 C1 H5 110.452 H4 C1 H5 112.891
O6 N2 O7 126.030
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability