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

using model chemistry: wB97X-D/cc-pVTZ

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 wB97X-D/cc-pVTZ
 hartrees
Energy at 0K-268.396852
Energy at 298.15K-268.404032
HF Energy-268.396852
Nuclear repulsion energy178.338574
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 wB97X-D/cc-pVTZ
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' 3145 3006 19.58      
2 A' 3074 2939 11.22      
3 A' 3063 2928 13.50      
4 A' 3061 2926 63.59      
5 A' 1840 1759 328.82      
6 A' 1521 1454 8.48      
7 A' 1501 1435 2.59      
8 A' 1438 1374 14.39      
9 A' 1410 1348 1.32      
10 A' 1403 1341 0.32      
11 A' 1252 1197 421.00      
12 A' 1145 1095 10.35      
13 A' 1052 1005 20.83      
14 A' 877 838 11.89      
15 A' 803 768 2.50      
16 A' 388 371 5.85      
17 A' 231 220 7.28      
18 A" 3146 3008 32.34      
19 A" 3115 2978 4.80      
20 A" 1492 1427 6.87      
21 A" 1309 1251 1.53      
22 A" 1185 1133 4.22      
23 A" 1045 999 0.04      
24 A" 814 778 0.87      
25 A" 340 325 20.43      
26 A" 228 218 2.48      
27 A" 53 51 0.82      

Unscaled Zero Point Vibrational Energy (zpe) 19964.6 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 19086.1 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 wB97X-D/cc-pVTZ
ABC
0.60611 0.09697 0.08628

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.172 -0.284 0.000
C2 -0.691 -0.568 0.000
O3 0.000 0.693 0.000
C4 1.328 0.631 0.000
O5 1.985 -0.369 0.000
H6 -2.723 -1.224 0.000
H7 -2.459 0.284 0.884
H8 -2.459 0.284 -0.884
H9 -0.385 -1.134 -0.880
H10 -0.385 -1.134 0.880
H11 1.740 1.648 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.50842.38153.61754.15731.08971.08921.08922.16572.16574.3631
C21.50841.43832.34812.68262.13572.15292.15291.09011.09013.2895
O32.38151.43831.32952.25093.33032.64512.64512.06452.06451.9849
C43.61752.34811.32951.19624.45573.90443.90442.61262.61261.0971
O54.15732.68262.25091.19624.78494.57744.57742.64132.64132.0314
H61.08972.13573.33034.45574.78491.76731.76732.50002.50005.3075
H71.08922.15292.64513.90444.57741.76731.76883.06992.51194.5031
H81.08922.15292.64513.90444.57741.76731.76882.51193.06994.5031
H92.16571.09012.06452.61262.64132.50003.06992.51191.76083.6098
H102.16571.09012.06452.61262.64132.50002.51193.06991.76083.6098
H114.36313.28951.98491.09712.03145.30754.50314.50313.60983.6098

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 107.820 C1 C2 H9 111.906
C1 C2 H10 111.906 C2 C1 H6 109.526
C2 C1 H7 110.923 C2 C1 H8 110.923
C2 O3 C4 116.018 O3 C2 H9 108.697
O3 C2 H10 108.697 O3 C4 O5 125.967
O3 C4 H11 109.397 O5 C4 H11 124.636
H6 C1 H7 108.408 H6 C1 H8 108.408
H7 C1 H8 108.578 H9 C2 H10 107.732
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.243      
2 C 0.034      
3 O -0.216      
4 C 0.236      
5 O -0.316      
6 H 0.084      
7 H 0.090      
8 H 0.090      
9 H 0.086      
10 H 0.086      
11 H 0.068      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.066 0.595 0.000 2.150
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.057 4.838 0.000
y 4.838 -29.087 0.000
z 0.000 0.000 -29.158
Traceless
 xyz
x -3.934 4.838 0.000
y 4.838 2.020 0.000
z 0.000 0.000 1.914
Polar
3z2-r23.828
x2-y2-3.969
xy4.838
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.721 0.227 0.000
y 0.227 6.269 0.000
z 0.000 0.000 4.963


<r2> (average value of r2) Å2
<r2> 134.903
(<r2>)1/2 11.615