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

using model chemistry: CISD/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-244.497085
Energy at 298.15K 
HF Energy-243.759272
Nuclear repulsion energy127.069034
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/6-311+G(3df,2p)
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' 3298 3040 1.33      
2 A' 3200 2950 1.20      
3 A' 1592 1468 75.12      
4 A' 1549 1428 16.52      
5 A' 1496 1379 1.24      
6 A' 1211 1117 0.95      
7 A' 1018 938 4.42      
8 A' 722 665 30.02      
9 A' 666 614 7.35      
10 A" 3329 3069 0.03      
11 A" 1794 1654 492.96      
12 A" 1542 1422 38.43      
13 A" 1178 1086 17.80      
14 A" 511 471 1.41      
15 A" 22i 20i 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 11542.8 cm-1
Scaled (by 0.9218) Zero Point Vibrational Energy (zpe) 10640.1 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/6-311+G(3df,2p)
ABC
0.42679 0.36211 0.20331

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 -1.304 0.000
N2 -0.010 0.173 0.000
H3 1.038 -1.604 0.000
H4 -0.489 -1.640 0.897
H5 -0.489 -1.640 -0.897
O6 0.000 0.719 -1.065
O7 0.000 0.719 1.065

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.47741.07961.07591.07592.28632.2863
N21.47742.06232.07922.07921.19701.1970
H31.07962.06231.77131.77132.75742.7574
H41.07592.07921.77131.79473.10742.4150
H51.07592.07921.77131.79472.41503.1074
O62.28631.19702.75743.10742.41502.1307
O72.28631.19702.75742.41503.10742.1307

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 117.112 C1 N2 O7 117.112
N2 C1 H3 106.479 N2 C1 H4 108.010
N2 C1 H5 108.010 H3 C1 H4 110.517
H3 C1 H5 110.517 H4 C1 H5 113.030
O6 N2 O7 125.757
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability