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

using model chemistry: B97D3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-229.019641
Energy at 298.15K-229.024436
HF Energy-229.019641
Nuclear repulsion energy121.635172
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 B97D3/6-311+G(3df,2p)
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' 3110 3070 14.22      
2 A' 3000 2961 21.85      
3 A' 2968 2930 66.75      
4 A' 1747 1724 296.90      
5 A' 1467 1448 9.09      
6 A' 1434 1415 3.95      
7 A' 1364 1347 1.15      
8 A' 1188 1173 90.75      
9 A' 1134 1119 200.04      
10 A' 893 881 21.90      
11 A' 754 744 6.78      
12 A' 293 289 12.80      
13 A" 3075 3035 19.72      
14 A" 1456 1437 9.10      
15 A" 1147 1132 1.10      
16 A" 1001 988 0.05      
17 A" 342 337 23.36      
18 A" 114 113 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 13243.3 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 13071.2 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 B97D3/6-311+G(3df,2p)
ABC
0.66851 0.22546 0.17418

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.374 0.416 0.000
O2 0.000 0.875 0.000
C3 -0.934 -0.095 0.000
O4 -0.728 -1.282 0.000
H5 1.981 1.320 0.000
H6 1.570 -0.185 0.891
H7 1.570 -0.185 -0.891
H8 -1.931 0.377 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 O4 H5 H6 H7 H8
C11.44842.36412.70231.08921.09261.09263.3051
O21.44841.34672.27662.03032.09362.09361.9941
C32.36411.34671.20503.24072.66012.66011.1028
O42.70232.27661.20503.75662.69852.69852.0495
H51.08922.03033.24073.75661.79671.79674.0239
H61.09262.09362.66012.69851.79671.78223.6565
H71.09262.09362.66012.69851.79671.78223.6565
H83.30511.99411.10282.04954.02393.65653.6565

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 115.468 O2 C1 H5 105.402
O2 C1 H6 110.174 O2 C1 H7 110.174
O2 C3 O4 126.210 O2 C3 H8 108.581
O4 C3 H8 125.209 H5 C1 H6 110.874
H5 C1 H7 110.874 H6 C1 H7 109.294
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.005      
2 O -0.494      
3 C 0.594      
4 O -0.582      
5 H 0.115      
6 H 0.126      
7 H 0.126      
8 H 0.109      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.029 1.640 0.000 1.936
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.634 -1.141 0.000
y -1.141 -28.517 0.000
z 0.000 0.000 -23.141
Traceless
 xyz
x 6.195 -1.141 0.000
y -1.141 -7.130 0.000
z 0.000 0.000 0.935
Polar
3z2-r21.870
x2-y28.883
xy-1.141
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.116 0.396 0.000
y 0.396 5.562 0.000
z 0.000 0.000 3.946


<r2> (average value of r2) Å2
<r2> 72.141
(<r2>)1/2 8.494