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

using model chemistry: QCISD/6-31G*

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 QCISD/6-31G*
 hartrees
Energy at 0K-244.342130
Energy at 298.15K-244.346832
HF Energy-243.656152
Nuclear repulsion energy124.403821
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 QCISD/6-31G*
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' 3220 3066 1.86      
2 A' 3121 2972 1.67      
3 A' 1522 1449 10.26      
4 A' 1470 1400 66.80      
5 A' 1455 1386 12.32      
6 A' 1170 1114 0.77      
7 A' 949 903 5.32      
8 A' 677 645 28.79      
9 A' 613 584 6.84      
10 A" 3248 3093 0.58      
11 A" 1671 1591 263.04      
12 A" 1513 1440 39.63      
13 A" 1136 1082 15.90      
14 A" 488 464 0.75      
15 A" 9 9 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11129.5 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 10598.6 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 QCISD/6-31G*
ABC
0.40445 0.35188 0.19521

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.021 -1.316 0.000
N2 -0.091 0.178 0.000
H3 1.086 -1.563 0.000
H4 -0.455 -1.687 0.907
H5 -0.455 -1.687 -0.907
O6 0.021 0.725 -1.090
O7 0.021 0.725 1.090

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49801.09381.08971.08972.31362.3136
N21.49802.10172.10562.10561.22461.2246
H31.09382.10171.79281.79282.74912.7491
H41.08972.10561.79281.81473.16752.4652
H51.08972.10561.79281.81472.46523.1675
O62.31361.22462.74913.16752.46522.1798
O72.31361.22462.74912.46523.16752.1798

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 116.015 C1 N2 O7 116.015
N2 C1 H3 107.341 N2 C1 H4 107.881
N2 C1 H5 107.881 H3 C1 H4 110.387
H3 C1 H5 110.387 H4 C1 H5 112.752
O6 N2 O7 125.747
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability