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

using model chemistry: B97D3/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-311G**
 hartrees
Energy at 0K-228.996952
Energy at 298.15K-229.001716
HF Energy-228.996952
Nuclear repulsion energy121.447522
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 B97D3/6-311G**
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' 3117 3072 18.77      
2 A' 3000 2958 21.41      
3 A' 2967 2925 83.96      
4 A' 1761 1736 266.76      
5 A' 1469 1448 9.16      
6 A' 1433 1413 3.85      
7 A' 1365 1345 1.00      
8 A' 1184 1167 86.12      
9 A' 1133 1116 201.03      
10 A' 894 881 21.43      
11 A' 758 747 7.01      
12 A' 294 290 12.98      
13 A" 3076 3032 27.69      
14 A" 1454 1433 8.95      
15 A" 1144 1128 0.81      
16 A" 1000 986 0.00      
17 A" 345 340 24.48      
18 A" 94 92 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 13243.8 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 13054.4 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 B97D3/6-311G**
ABC
0.66304 0.22563 0.17392

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.374 0.412 0.000
O2 0.000 0.880 0.000
C3 -0.936 -0.095 0.000
O4 -0.727 -1.283 0.000
H5 1.985 1.316 0.000
H6 1.569 -0.192 0.892
H7 1.569 -0.192 -0.892
H8 -1.932 0.384 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 O4 H5 H6 H7 H8
C11.45122.36502.69911.09111.09491.09493.3056
O21.45121.35142.28142.03252.09932.09931.9943
C32.36501.35141.20633.24412.66152.66151.1046
O42.69912.28141.20633.75602.69432.69432.0566
H51.09112.03253.24413.75601.80041.80044.0262
H61.09492.09932.66152.69431.80041.78473.6585
H71.09492.09932.66152.69431.80041.78473.6585
H83.30561.99431.10462.05664.02623.65853.6585

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 115.051 O2 C1 H5 105.278
O2 C1 H6 110.288 O2 C1 H7 110.288
O2 C3 O4 126.151 O2 C3 H8 108.165
O4 C3 H8 125.684 H5 C1 H6 110.888
H5 C1 H7 110.888 H6 C1 H7 109.171
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.133      
2 O -0.280      
3 C 0.256      
4 O -0.317      
5 H 0.124      
6 H 0.128      
7 H 0.128      
8 H 0.094      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.013 1.503 0.000 1.813
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.251 -1.092 0.000
y -1.092 -27.960 0.000
z 0.000 0.000 -22.853
Traceless
 xyz
x 6.155 -1.092 0.000
y -1.092 -6.907 0.000
z 0.000 0.000 0.752
Polar
3z2-r21.504
x2-y28.708
xy-1.092
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.226 0.325 0.000
y 0.325 4.654 0.000
z 0.000 0.000 3.114


<r2> (average value of r2) Å2
<r2> 71.967
(<r2>)1/2 8.483