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All results from a given calculation for CH3OCHO (methyl formate)

using model chemistry: M06-2X/aug-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 M06-2X/aug-cc-pVTZ
 hartrees
Energy at 0K-229.063780
Energy at 298.15K-229.068823
HF Energy-229.063780
Nuclear repulsion energy123.002746
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 M06-2X/aug-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' 3196 3054 8.16      
2 A' 3127 2989 37.75      
3 A' 3078 2942 20.48      
4 A' 1846 1764 340.40      
5 A' 1504 1438 11.84      
6 A' 1479 1414 5.31      
7 A' 1416 1354 1.43      
8 A' 1270 1214 295.57      
9 A' 1208 1154 49.44      
10 A' 983 940 27.59      
11 A' 792 757 9.05      
12 A' 323 309 14.83      
13 A" 3151 3011 11.94      
14 A" 1503 1437 10.03      
15 A" 1185 1132 1.69      
16 A" 1058 1011 0.10      
17 A" 336 321 27.56      
18 A" 205 196 0.55      

Unscaled Zero Point Vibrational Energy (zpe) 13830.8 cm-1
Scaled (by 0.9557) Zero Point Vibrational Energy (zpe) 13218.1 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 M06-2X/aug-cc-pVTZ
ABC
0.67602 0.23310 0.17916

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.351 0.406 0.000
O2 0.000 0.865 0.000
C3 -0.926 -0.087 0.000
O4 -0.711 -1.263 0.000
H5 1.972 1.296 0.000
H6 1.545 -0.195 0.886
H7 1.545 -0.195 -0.886
H8 -1.925 0.366 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 O4 H5 H6 H7 H8
C11.42702.33022.65321.08481.08841.08843.2763
O21.42701.32812.24342.01882.07282.07281.9883
C32.33021.32811.19523.21142.62752.62751.0968
O42.65322.24341.19523.70772.64872.64872.0315
H51.08482.01883.21143.70771.78631.78634.0064
H61.08842.07282.62752.64871.78631.77243.6250
H71.08842.07282.62752.64871.78631.77243.6250
H83.27631.98831.09682.03154.00643.62503.6250

picture of methyl formate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 C3 115.467 O2 C1 H5 106.174
O2 C1 H6 110.254 O2 C1 H7 110.254
O2 C3 O4 125.428 O2 C3 H8 109.793
O4 C3 H8 124.779 H5 C1 H6 110.560
H5 C1 H7 110.560 H6 C1 H7 109.019
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.761      
2 O -0.208      
3 C -0.031      
4 O -0.580      
5 H 0.312      
6 H 0.343      
7 H 0.343      
8 H 0.582      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.866 1.687 0.000 1.896
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.343 -1.245 0.000
y -1.245 -28.646 0.000
z 0.000 0.000 -23.183
Traceless
 xyz
x 6.572 -1.245 0.000
y -1.245 -7.383 0.000
z 0.000 0.000 0.811
Polar
3z2-r21.622
x2-y29.303
xy-1.245
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.657 0.338 0.000
y 0.338 5.241 0.000
z 0.000 0.000 3.839


<r2> (average value of r2) Å2
<r2> 70.598
(<r2>)1/2 8.402