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All results from a given calculation for CH3ONO (Methyl nitrite)

using model chemistry: MP2=FULL/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS cis 1A'
Energy calculated at MP2=FULL/6-31+G**
 hartrees
Energy at 0K-244.379991
Energy at 298.15K-244.384703
HF Energy-243.670744
Nuclear repulsion energy122.463257
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 MP2=FULL/6-31+G**
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' 3290 3090 4.56      
2 A' 3139 2948 15.82      
3 A' 1571 1476 122.87      
4 A' 1542 1448 4.52      
5 A' 1480 1390 9.31      
6 A' 1206 1132 2.35      
7 A' 1035 972 157.71      
8 A' 860 808 116.58      
9 A' 689 647 160.13      
10 A' 359 337 1.93      
11 A" 3240 3043 14.87      
12 A" 1527 1434 9.29      
13 A" 1182 1110 1.93      
14 A" 364 342 2.27      
15 A" 219 206 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 10851.0 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 10191.2 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 MP2=FULL/6-31+G**
ABC
0.66207 0.24934 0.18754

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.322 0.316 0.000
O2 0.000 0.897 0.000
H3 1.981 1.175 0.000
H4 1.469 -0.292 0.889
H5 1.469 -0.292 -0.889
N6 -1.048 -0.028 0.000
O7 -0.689 -1.183 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.44371.08271.08731.08732.39502.5083
O21.44372.00042.08882.08881.39832.1912
H31.08272.00041.79051.79053.25963.5623
H41.08732.08881.79051.77752.68282.4982
H51.08732.08881.79051.77752.68282.4982
N62.39501.39833.25962.68282.68281.2092
O72.50832.19123.56232.49822.49821.2092

picture of Methyl nitrite state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 N6 114.844 O2 C1 H3 103.790
O2 C1 H4 110.449 O2 C1 H5 110.449
O2 N6 O7 114.156 H3 C1 H4 111.196
H3 C1 H5 111.196 H4 C1 H5 109.650
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability