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

using model chemistry: M06-2X/3-21G

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/3-21G
 hartrees
Energy at 0K-266.773167
Energy at 298.15K-266.780443
HF Energy-266.773167
Nuclear repulsion energy175.991219
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/3-21G
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' 3195 3063 11.02      
2 A' 3134 3004 7.40      
3 A' 3121 2992 6.87      
4 A' 3093 2965 43.29      
5 A' 1785 1712 207.17      
6 A' 1589 1524 9.58      
7 A' 1573 1508 6.02      
8 A' 1480 1419 14.15      
9 A' 1426 1367 6.23      
10 A' 1424 1365 4.17      
11 A' 1219 1169 385.65      
12 A' 1161 1113 9.53      
13 A' 1047 1004 9.08      
14 A' 871 835 7.90      
15 A' 801 768 5.84      
16 A' 376 361 9.40      
17 A' 223 214 8.02      
18 A" 3205 3073 18.92      
19 A" 3172 3041 5.90      
20 A" 1564 1499 8.13      
21 A" 1323 1268 0.04      
22 A" 1210 1160 7.79      
23 A" 1060 1017 0.03      
24 A" 861 826 2.19      
25 A" 342 328 26.17      
26 A" 275 263 7.16      
27 A" 77 74 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 20303.4 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 19464.8 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/3-21G
ABC
0.57602 0.09569 0.08467

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.190 -0.246 0.000
C2 -0.706 -0.588 0.000
O3 0.000 0.710 0.000
C4 1.360 0.631 0.000
O5 1.988 -0.414 0.000
H6 -2.789 -1.161 0.000
H7 -2.435 0.342 0.887
H8 -2.435 0.342 -0.887
H9 -0.407 -1.155 -0.885
H10 -0.407 -1.155 0.885
H11 1.781 1.639 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.52312.38983.65724.18121.09321.09241.09242.18852.18854.3956
C21.52311.47732.39872.69902.16092.15462.15461.09311.09313.3376
O32.38981.47731.36282.28393.35862.61752.61752.10402.10402.0084
C43.65722.39871.36281.21924.52003.90843.90842.66372.66371.0919
O54.18122.69902.28391.21924.83504.57394.57392.65812.65812.0636
H61.09322.16093.35864.52004.83501.78081.78082.54182.54185.3594
H71.09242.15462.61753.90844.57391.78081.77423.08162.52084.4990
H81.09242.15462.61753.90844.57391.78081.77422.52083.08164.4990
H92.18851.09312.10402.66372.65812.54183.08162.52081.77083.6568
H102.18851.09312.10402.66372.65812.54182.52083.08161.77083.6568
H114.39563.33762.00841.09192.06365.35944.49904.49903.65683.6568

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 105.580 C1 C2 H9 112.509
C1 C2 H10 112.509 C2 C1 H6 110.287
C2 C1 H7 109.833 C2 C1 H8 109.833
C2 O3 C4 115.200 O3 C2 H9 108.968
O3 C2 H10 108.968 O3 C4 O5 124.300
O3 C4 H11 109.313 O5 C4 H11 126.387
H6 C1 H7 109.130 H6 C1 H8 109.130
H7 C1 H8 108.596 H9 C2 H10 108.197
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.594      
2 C -0.168      
3 O -0.535      
4 C 0.470      
5 O -0.480      
6 H 0.204      
7 H 0.219      
8 H 0.219      
9 H 0.225      
10 H 0.225      
11 H 0.218      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.712 0.455 0.000 1.772
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.392 5.307 0.000
y 5.307 -29.418 0.000
z 0.000 0.000 -29.263
Traceless
 xyz
x -3.052 5.307 0.000
y 5.307 1.409 0.000
z 0.000 0.000 1.643
Polar
3z2-r23.285
x2-y2-2.974
xy5.307
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.300 0.234 0.000
y 0.234 5.057 0.000
z 0.000 0.000 3.637


<r2> (average value of r2) Å2
<r2> 136.890
(<r2>)1/2 11.700