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

using model chemistry: CCSD=FULL/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 CCSD=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-244.539614
Energy at 298.15K 
HF Energy-243.687900
Nuclear repulsion energy125.804414
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 CCSD=FULL/6-31G(2df,p)
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' 3246 3056 0.89      
2 A' 3145 2961 0.91      
3 A' 1520 1431 25.97      
4 A' 1503 1416 57.03      
5 A' 1452 1367 2.86      
6 A' 1179 1110 1.19      
7 A' 975 918 5.42      
8 A' 696 655 27.69      
9 A' 638 601 6.06      
10 A" 3272 3081 0.06      
11 A" 1738 1637 301.95      
12 A" 1505 1417 33.75      
13 A" 1146 1079 11.94      
14 A" 492 463 0.82      
15 A" 36i 34i 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 11235.1 cm-1
Scaled (by 0.9416) Zero Point Vibrational Energy (zpe) 10579.0 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 CCSD=FULL/6-31G(2df,p)
ABC
0.41460 0.35873 0.19957

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.309 0.000
N2 -0.011 0.173 0.000
H3 1.044 -1.616 0.000
H4 -0.494 -1.648 0.903
H5 -0.494 -1.648 -0.903
O6 0.001 0.722 -1.082
O7 0.001 0.722 1.082

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48231.08721.08401.08402.30172.3017
N21.48232.07622.08942.08941.21321.2132
H31.08722.07621.78371.78372.77922.7792
H41.08402.08941.78371.80623.13102.4282
H51.08402.08941.78371.80622.42823.1310
O62.30171.21322.77923.13102.42822.1632
O72.30171.21322.77922.42823.13102.1632

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 116.924 C1 N2 O7 116.924
N2 C1 H3 106.805 N2 C1 H4 108.005
N2 C1 H5 108.005 H3 C1 H4 110.475
H3 C1 H5 110.475 H4 C1 H5 112.830
O6 N2 O7 126.128
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability