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All results from a given calculation for HCOOC2H5 (Ethyl formate)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS trans 1A'
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-266.900547
Energy at 298.15K-266.907980
HF Energy-266.900547
Nuclear repulsion energy179.502684
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 HF/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' 3242 2945 43.95 67.03 0.63 0.77
2 A' 3236 2940 74.17 113.99 0.23 0.38
3 A' 3215 2921 13.96 110.09 0.18 0.31
4 A' 3174 2884 22.41 117.48 0.01 0.02
5 A' 1987 1805 427.99 5.16 0.34 0.50
6 A' 1649 1498 7.05 2.86 0.67 0.80
7 A' 1617 1469 2.96 12.75 0.74 0.85
8 A' 1564 1421 18.89 3.63 0.45 0.62
9 A' 1535 1394 4.72 4.09 0.48 0.65
10 A' 1518 1379 0.15 0.13 0.69 0.82
11 A' 1361 1237 572.13 1.56 0.15 0.27
12 A' 1230 1118 18.02 5.71 0.18 0.30
13 A' 1110 1009 19.07 5.08 0.71 0.83
14 A' 944 858 21.03 7.24 0.32 0.48
15 A' 857 779 3.22 4.39 0.44 0.61
16 A' 410 372 6.85 1.67 0.36 0.53
17 A' 244 222 9.14 0.40 0.39 0.56
18 A" 3269 2970 65.29 5.39 0.75 0.86
19 A" 3239 2942 4.50 109.67 0.75 0.86
20 A" 1601 1454 5.51 10.85 0.75 0.86
21 A" 1417 1287 2.41 7.25 0.75 0.86
22 A" 1287 1169 5.58 0.30 0.75 0.86
23 A" 1188 1079 3.48 2.06 0.75 0.86
24 A" 874 794 0.04 0.12 0.75 0.86
25 A" 351 319 28.97 1.39 0.75 0.86
26 A" 256 232 4.99 0.70 0.75 0.86
27 A" 74 68 0.89 0.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 21224.5 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 19282.5 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 HF/6-311G**
ABC
0.62757 0.09725 0.08690

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.167 -0.297 0.000
C2 -0.683 -0.586 0.000
O3 0.000 0.667 0.000
C4 1.314 0.644 0.000
O5 1.987 -0.323 0.000
H6 -2.723 -1.230 0.000
H7 -2.447 0.271 0.880
H8 -2.447 0.271 -0.880
H9 -0.383 -1.147 -0.876
H10 -0.383 -1.147 0.876
H11 1.703 1.659 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51182.37193.60574.15391.08571.08451.08452.16112.16114.3361
C21.51181.42712.34512.68272.13912.14982.14981.08261.08263.2759
O32.37191.42711.31402.21993.31852.63062.63062.05102.05101.9706
C43.60572.34511.31401.17814.45033.88053.88052.61852.61851.0871
O54.15392.68272.21991.17814.79624.55944.55942.65812.65812.0022
H61.08572.13913.31854.45034.79621.76161.76162.49932.49935.2850
H71.08452.14982.63063.88054.55941.76161.76013.05852.50434.4635
H81.08452.14982.63063.88054.55941.76161.76012.50433.05854.4635
H92.16111.08262.05102.61852.65812.49933.05852.50431.75163.6049
H102.16111.08262.05102.61852.65812.49932.50433.05851.75163.6049
H114.33613.27591.97061.08712.00225.28504.46354.46353.60493.6049

picture of Ethyl formate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 107.584 C1 C2 H9 111.752
C1 C2 H10 111.752 C2 C1 H6 109.793
C2 C1 H7 110.717 C2 C1 H8 110.717
C2 O3 C4 117.580 O3 C2 H9 108.846
O3 C2 H10 108.846 O3 C4 O5 125.855
O3 C4 H11 109.954 O5 C4 H11 124.192
H6 C1 H7 108.533 H6 C1 H8 108.533
H7 C1 H8 108.484 H9 C2 H10 107.994
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.252      
2 C 0.070      
3 O -0.422      
4 C 0.446      
5 O -0.437      
6 H 0.094      
7 H 0.100      
8 H 0.100      
9 H 0.104      
10 H 0.104      
11 H 0.094      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.044 0.694 0.000 2.158
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.885 5.361 0.000
y 5.361 -28.936 0.000
z 0.000 0.000 -29.124
Traceless
 xyz
x -4.855 5.361 0.000
y 5.361 2.569 0.000
z 0.000 0.000 2.286
Polar
3z2-r24.573
x2-y2-4.949
xy5.361
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.431 0.101 0.000
y 0.101 5.477 0.000
z 0.000 0.000 4.301


<r2> (average value of r2) Å2
<r2> 134.238
(<r2>)1/2 11.586