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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/cc-pVTZ
 hartrees
Energy at 0K-229.156163
Energy at 298.15K-229.161027
HF Energy-229.156163
Nuclear repulsion energy122.252665
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 B3LYPultrafine/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' 3157 3052 12.93      
2 A' 3053 2951 16.06      
3 A' 3032 2931 63.85      
4 A' 1802 1742 288.84      
5 A' 1499 1450 9.80      
6 A' 1469 1420 4.43      
7 A' 1399 1352 1.35      
8 A' 1228 1187 181.46      
9 A' 1180 1141 133.70      
10 A' 929 898 22.89      
11 A' 777 751 7.80      
12 A' 299 289 13.82      
13 A" 3123 3019 18.39      
14 A" 1487 1437 9.13      
15 A" 1175 1136 1.26      
16 A" 1042 1008 0.02      
17 A" 344 332 25.34      
18 A" 123 119 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 13558.4 cm-1
Scaled (by 0.9667) Zero Point Vibrational Energy (zpe) 13106.9 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 B3LYPultrafine/cc-pVTZ
ABC
0.67555 0.22778 0.17598

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.367 0.414 0.000
O2 0.000 0.868 0.000
C3 -0.932 -0.093 0.000
O4 -0.725 -1.274 0.000
H5 1.974 1.314 0.000
H6 1.568 -0.185 0.887
H7 1.568 -0.185 -0.887
H8 -1.925 0.373 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 O4 H5 H6 H7 H8
C11.44072.35402.68781.08511.08841.08843.2927
O21.44071.33862.26162.02342.08632.08631.9881
C32.35401.33861.19913.22802.65352.65351.0972
O42.68782.26161.19913.73862.68842.68842.0378
H51.08512.02343.22803.73861.78761.78764.0111
H61.08842.08632.65352.68841.78761.77333.6466
H71.08842.08632.65352.68841.78761.77333.6466
H83.29271.98811.09722.03784.01113.64663.6466

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 115.718 O2 C1 H5 105.607
O2 C1 H6 110.385 O2 C1 H7 110.385
O2 C3 O4 125.952 O2 C3 H8 109.008
O4 C3 H8 125.040 H5 C1 H6 110.666
H5 C1 H7 110.666 H6 C1 H7 109.102
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.089      
2 O -0.216      
3 C 0.241      
4 O -0.308      
5 H 0.110      
6 H 0.097      
7 H 0.097      
8 H 0.069      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.966 1.646 0.000 1.909
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.449 -1.189 -0.002
y -1.189 -28.298 -0.003
z -0.002 -0.003 -23.067
Traceless
 xyz
x 6.234 -1.189 -0.002
y -1.189 -7.040 -0.003
z -0.002 -0.003 0.807
Polar
3z2-r21.613
x2-y28.849
xy-1.189
xz-0.002
yz-0.003


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.432 0.320 0.000
y 0.320 4.872 0.001
z 0.000 0.001 3.456


<r2> (average value of r2) Å2
<r2> 71.485
(<r2>)1/2 8.455