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

using model chemistry: PBE1PBE/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 PBE1PBE/6-311G*
 hartrees
Energy at 0K-268.141776
Energy at 298.15K-268.148975
HF Energy-268.141776
Nuclear repulsion energy178.336882
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 PBE1PBE/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' 3146 3016 24.76      
2 A' 3083 2955 13.06      
3 A' 3067 2940 15.37      
4 A' 3064 2937 80.18      
5 A' 1852 1775 322.25      
6 A' 1533 1469 9.54      
7 A' 1512 1449 2.93      
8 A' 1440 1380 19.91      
9 A' 1413 1355 1.34      
10 A' 1401 1343 0.07      
11 A' 1247 1195 408.12      
12 A' 1149 1101 12.36      
13 A' 1059 1015 21.71      
14 A' 878 841 10.72      
15 A' 806 772 2.79      
16 A' 385 369 6.60      
17 A' 228 219 7.01      
18 A" 3154 3023 41.33      
19 A" 3122 2993 5.83      
20 A" 1500 1438 8.95      
21 A" 1317 1262 1.30      
22 A" 1189 1140 4.83      
23 A" 1043 1000 0.13      
24 A" 812 779 0.96      
25 A" 356 341 21.73      
26 A" 237 227 2.14      
27 A" 61 58 0.64      

Unscaled Zero Point Vibrational Energy (zpe) 20026.1 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 19195.0 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 PBE1PBE/6-311G*
ABC
0.60334 0.09727 0.08647

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.168 -0.275 0.000
C2 -0.691 -0.565 0.000
O3 0.000 0.696 0.000
C4 1.329 0.624 0.000
O5 1.980 -0.380 0.000
H6 -2.734 -1.210 0.000
H7 -2.455 0.298 0.885
H8 -2.455 0.298 -0.885
H9 -0.381 -1.134 -0.881
H10 -0.381 -1.134 0.881
H11 1.744 1.643 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.50592.37583.61134.15011.09301.09241.09242.17012.17014.3576
C21.50591.43822.34442.67762.14272.15412.15411.09331.09333.2877
O32.37581.43821.33122.25373.33302.63972.63972.06622.06621.9849
C43.61132.34441.33121.19664.45833.89983.89982.60602.60601.1004
O54.15012.67762.25371.19664.78724.57304.57302.63062.63062.0368
H61.09302.14273.33304.45834.78721.77051.77052.51422.51425.3103
H71.09242.15412.63973.89984.57301.77051.77033.07732.51994.4973
H81.09242.15412.63973.89984.57301.77051.77032.51993.07734.4973
H92.17011.09332.06622.60602.63062.51423.07732.51991.76223.6062
H102.17011.09332.06622.60602.63062.51422.51993.07731.76223.6062
H114.35763.28771.98491.10042.03685.31034.49734.49733.60623.6062

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 107.576 C1 C2 H9 112.241
C1 C2 H10 112.241 C2 C1 H6 110.053
C2 C1 H7 111.000 C2 C1 H8 111.000
C2 O3 C4 115.616 O3 C2 H9 108.644
O3 C2 H10 108.644 O3 C4 O5 126.056
O3 C4 H11 109.068 O5 C4 H11 124.876
H6 C1 H7 108.219 H6 C1 H8 108.219
H7 C1 H8 108.254 H9 C2 H10 107.398
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.682      
2 C -0.267      
3 O -0.277      
4 C 0.187      
5 O -0.336      
6 H 0.231      
7 H 0.236      
8 H 0.236      
9 H 0.237      
10 H 0.237      
11 H 0.198      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.964 0.536 0.000 2.036
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.037 4.825 0.000
y 4.825 -29.254 0.000
z 0.000 0.000 -29.228
Traceless
 xyz
x -3.796 4.825 0.000
y 4.825 1.878 0.000
z 0.000 0.000 1.918
Polar
3z2-r23.835
x2-y2-3.783
xy4.825
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.125 0.198 0.000
y 0.198 5.825 0.000
z 0.000 0.000 4.465


<r2> (average value of r2) Å2
<r2> 134.736
(<r2>)1/2 11.608