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

using model chemistry: HSEh1PBE/aug-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 HSEh1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-268.205238
Energy at 298.15K-268.212424
HF Energy-268.205238
Nuclear repulsion energy178.352526
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 HSEh1PBE/aug-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' 3136 3016 16.55      
2 A' 3068 2951 10.89      
3 A' 3058 2941 12.41      
4 A' 3047 2931 57.49      
5 A' 1820 1750 344.35      
6 A' 1511 1454 9.27      
7 A' 1491 1434 2.44      
8 A' 1422 1368 13.08      
9 A' 1398 1344 1.39      
10 A' 1388 1335 0.31      
11 A' 1238 1191 402.82      
12 A' 1139 1096 8.87      
13 A' 1049 1009 23.37      
14 A' 868 835 10.36      
15 A' 798 767 2.13      
16 A' 382 368 5.64      
17 A' 226 217 7.47      
18 A" 3141 3021 27.14      
19 A" 3107 2988 4.36      
20 A" 1479 1423 7.14      
21 A" 1298 1248 1.39      
22 A" 1177 1133 4.02      
23 A" 1049 1009 0.00      
24 A" 807 776 1.09      
25 A" 351 338 20.60      
26 A" 231 222 2.00      
27 A" 59 57 0.77      

Unscaled Zero Point Vibrational Energy (zpe) 19868.8 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 19109.8 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 HSEh1PBE/aug-cc-pVTZ
ABC
0.60402 0.09717 0.08640

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.169 -0.283 0.000
C2 -0.692 -0.566 0.000
O3 0.000 0.696 0.000
C4 1.328 0.630 0.000
O5 1.982 -0.373 0.000
H6 -2.722 -1.223 0.000
H7 -2.459 0.285 0.885
H8 -2.459 0.285 -0.885
H9 -0.381 -1.131 -0.880
H10 -0.381 -1.131 0.880
H11 1.743 1.647 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.50432.37993.61404.15171.09091.09041.09042.16602.16604.3622
C21.50431.43952.34702.68032.13432.15192.15191.09141.09143.2902
O32.37991.43951.32962.25213.33102.64562.64562.06422.06421.9854
C43.61402.34701.32961.19754.45393.90433.90432.60712.60711.0987
O54.15172.68032.25211.19754.78014.57574.57572.63302.63302.0345
H61.09092.13433.33104.45394.78011.76781.76782.50292.50295.3082
H71.09042.15192.64563.90434.57571.76781.76923.07222.51464.5052
H81.09042.15192.64563.90434.57571.76781.76922.51463.07224.5052
H92.16601.09142.06422.60712.63302.50293.07222.51461.76103.6064
H102.16601.09142.06422.60712.63302.50292.51463.07221.76103.6064
H114.36223.29021.98541.09872.03455.30824.50524.50523.60643.6064

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 107.866 C1 C2 H9 112.140
C1 C2 H10 112.140 C2 C1 H6 109.626
C2 C1 H7 111.058 C2 C1 H8 111.058
C2 O3 C4 115.841 O3 C2 H9 108.511
O3 C2 H10 108.511 O3 C4 O5 125.968
O3 C4 H11 109.328 O5 C4 H11 124.704
H6 C1 H7 108.283 H6 C1 H8 108.283
H7 C1 H8 108.446 H9 C2 H10 107.565
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.689      
2 C -0.000      
3 O -0.258      
4 C -0.066      
5 O -0.551      
6 H 0.229      
7 H 0.212      
8 H 0.212      
9 H 0.222      
10 H 0.222      
11 H 0.469      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.137 0.577 0.000 2.213
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.364 4.881 0.000
y 4.881 -29.500 0.000
z 0.000 0.000 -29.432
Traceless
 xyz
x -3.899 4.881 0.000
y 4.881 1.898 0.000
z 0.000 0.000 2.000
Polar
3z2-r24.001
x2-y2-3.865
xy4.881
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.432 0.223 0.000
y 0.223 6.789 0.000
z 0.000 0.000 5.455


<r2> (average value of r2) Å2
<r2> 134.970
(<r2>)1/2 11.618