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

using model chemistry: CISD/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 CISD/cc-pVDZ
 hartrees
Energy at 0K-244.289108
Energy at 298.15K 
HF Energy-243.683325
Nuclear repulsion energy126.189262
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 CISD/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' 3308 3049 1.26      
2 A' 3198 2948 1.21      
3 A' 1582 1459 100.20      
4 A' 1522 1403 13.12      
5 A' 1463 1348 0.66      
6 A' 1185 1092 1.54      
7 A' 1012 933 8.64      
8 A' 719 663 33.59      
9 A' 653 602 8.71      
10 A" 3338 3077 0.15      
11 A" 1834 1690 373.62      
12 A" 1508 1390 28.40      
13 A" 1156 1065 13.52      
14 A" 508 469 0.71      
15 A" 4 4 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11494.9 cm-1
Scaled (by 0.9218) Zero Point Vibrational Energy (zpe) 10596.0 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 CISD/cc-pVDZ
ABC
0.41938 0.35878 0.20077

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.309 0.000
N2 -0.012 0.176 0.000
H3 1.051 -1.614 0.000
H4 -0.496 -1.651 0.908
H5 -0.496 -1.651 -0.908
O6 0.001 0.721 -1.074
O7 0.001 0.721 1.074

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48491.09321.08961.08962.29732.2973
N21.48492.08162.09612.09611.20511.2051
H31.09322.08161.79351.79352.77692.7769
H41.08962.09611.79351.81553.13092.4292
H51.08962.09611.79351.81552.42923.1309
O62.29731.20512.77693.13092.42922.1488
O72.29731.20512.77692.42923.13092.1488

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 106.703 N2 C1 H4 108.024
N2 C1 H5 108.024 H3 C1 H4 110.499
H3 C1 H5 110.499 H4 C1 H5 112.840
O6 N2 O7 126.134
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability