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

using model chemistry: B3LYP/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/aug-cc-pVDZ
 hartrees
Energy at 0K-229.090501
Energy at 298.15K-229.095082
Nuclear repulsion energy119.046152
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 B3LYP/aug-cc-pVDZ
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' 3121 3029 21.10      
2 A' 3036 2946 37.45      
3 A' 2963 2876 58.63      
4 A' 1820 1766 433.06      
5 A' 1481 1438 12.15      
6 A' 1454 1411 0.61      
7 A' 1385 1344 0.05      
8 A' 1249 1212 198.37      
9 A' 1106 1073 173.15      
10 A' 1019 989 55.24      
11 A' 633 614 6.04      
12 A' 373 361 1.16      
13 A" 3140 3047 14.93      
14 A" 1455 1412 5.61      
15 A" 1160 1126 0.36      
16 A" 1020 990 0.00      
17 A" 195 189 5.40      
18 A" 60 58 1.98      

Unscaled Zero Point Vibrational Energy (zpe) 13334.6 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 12939.9 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 B3LYP/aug-cc-pVDZ
ABC
1.60398 0.15442 0.14479

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.401 0.941 0.000
O2 0.000 0.624 0.000
C3 0.357 -0.678 0.000
O4 1.503 -1.035 0.000
H5 -2.015 0.028 0.000
H6 -1.620 1.531 0.898
H7 -1.620 1.531 -0.898
H8 -0.510 -1.372 0.000

Atom - Atom Distances (Å)
  C1 O2 C3 O4 H5 H6 H7 H8
C11.43662.39033.51311.09961.09631.09632.4787
O21.43661.35012.23902.10102.06232.06232.0600
C32.39031.35011.20052.47523.09783.09781.1107
O43.51312.23901.20053.67564.14104.14102.0413
H51.09962.10102.47523.67561.79431.79432.0558
H61.09632.06233.09784.14101.79431.79513.2351
H71.09632.06233.09784.14101.79431.79513.2351
H82.47872.06001.11072.04132.05583.23513.2351

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 118.096 O2 C1 H5 111.174
O2 C1 H6 108.268 O2 C1 H7 108.268
O2 C3 O4 122.657 O2 C3 H8 113.317
O4 C3 H8 124.026 H5 C1 H6 109.597
H5 C1 H7 109.597 H6 C1 H7 109.912
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability