return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: M06-2X/TZVP

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 M06-2X/TZVP
 hartrees
Energy at 0K-268.362103
Energy at 298.15K-268.369417
HF Energy-268.362103
Nuclear repulsion energy178.399804
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 M06-2X/TZVP
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' 3155 2985 13.86      
2 A' 3119 2951 42.95      
3 A' 3097 2930 13.19      
4 A' 3079 2913 9.82      
5 A' 1854 1754 361.26      
6 A' 1532 1449 9.04      
7 A' 1509 1428 3.30      
8 A' 1445 1367 16.27      
9 A' 1430 1353 2.02      
10 A' 1405 1329 0.05      
11 A' 1261 1193 449.72      
12 A' 1152 1090 10.56      
13 A' 1063 1006 19.55      
14 A' 889 841 12.24      
15 A' 810 767 3.14      
16 A' 392 371 6.15      
17 A' 237 224 7.87      
18 A" 3171 3000 23.00      
19 A" 3139 2970 4.81      
20 A" 1497 1416 7.52      
21 A" 1312 1241 1.57      
22 A" 1193 1129 4.88      
23 A" 1060 1003 0.14      
24 A" 827 783 0.55      
25 A" 351 333 25.02      
26 A" 259 245 3.38      
27 A" 82 77 0.64      

Unscaled Zero Point Vibrational Energy (zpe) 20159.1 cm-1
Scaled (by 0.9462) Zero Point Vibrational Energy (zpe) 19074.5 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 M06-2X/TZVP
ABC
0.60294 0.09740 0.08656

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.169 -0.279 0.000
C2 -0.688 -0.570 0.000
O3 0.000 0.695 0.000
C4 1.330 0.631 0.000
O5 1.976 -0.376 0.000
H6 -2.729 -1.214 0.000
H7 -2.449 0.293 0.885
H8 -2.449 0.293 -0.885
H9 -0.381 -1.134 -0.881
H10 -0.381 -1.134 0.881
H11 1.751 1.644 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.50932.37783.61554.14631.09021.08971.08972.16992.16994.3663
C21.50931.43982.34842.67132.14022.15082.15081.09101.09103.2938
O32.37781.43981.33132.24713.33062.63472.63472.06572.06571.9915
C43.61552.34841.33131.19624.45883.89563.89562.61142.61141.0965
O54.14632.67132.24711.19624.77934.56164.56162.62782.62782.0316
H61.09022.14023.33064.45884.77931.76971.76972.50992.50995.3141
H71.08972.15082.63473.89564.56161.76971.76963.07142.51274.4997
H81.08972.15082.63473.89564.56161.76971.76962.51273.07144.4997
H92.16991.09102.06572.61142.62782.50993.07142.51271.76303.6107
H102.16991.09102.06572.61142.62782.50992.51273.07141.76303.6107
H114.36633.29381.99151.09652.03165.31414.49974.49973.61073.6107

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 107.445 C1 C2 H9 112.119
C1 C2 H10 112.119 C2 C1 H6 109.784
C2 C1 H7 110.661 C2 C1 H8 110.661
C2 O3 C4 115.823 O3 C2 H9 108.638
O3 C2 H10 108.638 O3 C4 O5 125.429
O3 C4 H11 109.854 O5 C4 H11 124.717
H6 C1 H7 108.549 H6 C1 H8 108.549
H7 C1 H8 108.578 H9 C2 H10 107.787
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.385      
2 C -0.126      
3 O -0.244      
4 C 0.289      
5 O -0.368      
6 H 0.136      
7 H 0.144      
8 H 0.144      
9 H 0.154      
10 H 0.154      
11 H 0.103      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.018 0.598 0.000 2.105
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.445 5.296 0.000
y 5.296 -29.634 0.000
z 0.000 0.000 -29.544
Traceless
 xyz
x -3.856 5.296 0.000
y 5.296 1.860 0.000
z 0.000 0.000 1.996
Polar
3z2-r23.992
x2-y2-3.811
xy5.296
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.433 0.085 0.000
y 0.085 6.118 0.000
z 0.000 0.000 4.839


<r2> (average value of r2) Å2
<r2> 134.838
(<r2>)1/2 11.612