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

using model chemistry: LSDA/3-21G*

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 LSDA/3-21G*
 hartrees
Energy at 0K-242.420965
Energy at 298.15K-242.425475
Nuclear repulsion energy120.213066
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 LSDA/3-21G*
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' 3123 3067 1.10      
2 A' 2977 2923 3.30      
3 A' 1484 1457 14.88      
4 A' 1425 1400 42.61      
5 A' 1364 1339 49.20      
6 A' 1090 1071 0.49      
7 A' 972 954 20.84      
8 A' 827 812 58.60      
9 A' 632 621 42.82      
10 A' 361 354 4.92      
11 A" 3038 2983 10.15      
12 A" 1458 1431 22.15      
13 A" 1105 1085 0.62      
14 A" 387 380 2.67      
15 A" 130 128 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 10185.5 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 10002.2 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 LSDA/3-21G*
ABC
0.61180 0.25065 0.18399

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.295 0.311 0.000
O2 0.000 0.967 0.000
H3 2.029 1.129 0.000
H4 1.416 -0.334 0.889
H5 1.416 -0.334 -0.889
N6 -1.085 -0.062 0.000
O7 -0.630 -1.204 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 H4 H5 N6 O7
C11.45161.09811.10551.10552.40892.4500
O21.45162.03502.11882.11881.49472.2604
H31.09812.03501.81821.81823.33303.5369
H41.10552.11881.81821.77832.66822.3945
H51.10552.11881.81821.77832.66822.3945
N62.40891.49473.33302.66822.66821.2296
O72.45002.26043.53692.39452.39451.2296

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 109.680 O2 C1 H3 105.060
O2 C1 H4 111.187 O2 C1 H5 111.187
O2 N6 O7 111.773 H3 C1 H4 111.196
H3 C1 H5 111.196 H4 C1 H5 107.087
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.475      
2 O -0.282      
3 H 0.258      
4 H 0.245      
5 H 0.245      
6 N 0.246      
7 O -0.236      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.168 -0.137 0.000 2.173
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.344 0.741 0.000
y 0.741 -25.379 0.000
z 0.000 0.000 -21.819
Traceless
 xyz
x 2.255 0.741 0.000
y 0.741 -3.797 0.000
z 0.000 0.000 1.542
Polar
3z2-r23.084
x2-y24.035
xy0.741
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.194 0.825 0.000
y 0.825 3.912 0.000
z 0.000 0.000 2.228


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000