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All results from a given calculation for CH3NO (nitrosomethane)

using model chemistry: QCISD(T)=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)=FULL/cc-pVTZ
 hartrees
Energy at 0K-169.586951
Energy at 298.15K-169.590644
HF Energy-168.892429
Nuclear repulsion energy70.451637
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(T)=FULL/cc-pVTZ
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' 3156 3020        
2 A' 3059 2927        
3 A' 1608 1539        
4 A' 1475 1412        
5 A' 1387 1327        
6 A' 1159 1109        
7 A' 873 835        
8 A' 578 553        
9 A" 3134 2999        
10 A" 1481 1417        
11 A" 980 938        
12 A" 152 146        

Unscaled Zero Point Vibrational Energy (zpe) 9519.8 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 9109.5 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(T)=FULL/cc-pVTZ
ABC
2.03477 0.38529 0.34459

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.948 -0.563 0.000
N2 0.000 0.573 0.000
O3 1.158 0.222 0.000
H4 -0.417 -1.512 0.000
H5 -1.578 -0.451 0.879
H6 -1.578 -0.451 -0.879

Atom - Atom Distances (Å)
  C1 N2 O3 H4 H5 H6
C11.48022.24731.08631.08771.0877
N21.48021.20962.12642.07682.0768
O32.24731.20962.34262.95142.9514
H41.08632.12642.34261.80141.8014
H51.08772.07682.95141.80141.7586
H61.08772.07682.95141.80141.7586

picture of nitrosomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O3 112.947 N2 C1 H4 110.964
N2 C1 H5 106.958 N2 C1 H6 106.958
H4 C1 H5 111.908 H4 C1 H6 111.908
H5 C1 H6 107.878
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability