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

using model chemistry: MP2=FULL/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 MP2=FULL/6-311G**
 hartrees
Energy at 0K-267.822151
Energy at 298.15K-267.829434
HF Energy-266.897447
Nuclear repulsion energy177.956966
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 MP2=FULL/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' 3188 3024 17.68      
2 A' 3112 2952 6.47      
3 A' 3107 2947 73.82      
4 A' 3095 2936 13.29      
5 A' 1808 1715 264.52      
6 A' 1543 1464 8.72      
7 A' 1521 1443 2.53      
8 A' 1453 1378 22.07      
9 A' 1421 1348 1.03      
10 A' 1411 1339 0.89      
11 A' 1239 1175 419.53      
12 A' 1157 1098 7.81      
13 A' 1069 1014 14.35      
14 A' 886 840 11.28      
15 A' 800 759 3.63      
16 A' 390 370 5.75      
17 A' 237 225 6.13      
18 A" 3198 3034 27.84      
19 A" 3163 3001 9.73      
20 A" 1505 1428 6.57      
21 A" 1327 1258 1.78      
22 A" 1205 1143 4.39      
23 A" 1056 1002 0.01      
24 A" 828 785 0.30      
25 A" 352 334 19.95      
26 A" 249 236 2.55      
27 A" 75 71 0.42      

Unscaled Zero Point Vibrational Energy (zpe) 20195.8 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 19157.7 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 MP2=FULL/6-311G**
ABC
0.59175 0.09759 0.08649

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.171 -0.254 0.000
C2 -0.690 -0.557 0.000
O3 0.000 0.710 0.000
C4 1.338 0.611 0.000
O5 1.971 -0.413 0.000
H6 -2.739 -1.188 0.000
H7 -2.444 0.321 0.887
H8 -2.444 0.321 -0.887
H9 -0.387 -1.125 -0.883
H10 -0.387 -1.125 0.883
H11 1.766 1.623 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51132.37503.61354.14501.09301.09171.09172.17202.17204.3608
C21.51131.44192.33982.66502.14422.15232.15231.09281.09283.2830
O32.37501.44191.34132.26883.33212.62862.62862.07252.07251.9878
C43.61352.33981.34131.20484.45613.89493.89492.60192.60191.0981
O54.14502.66502.26881.20484.77364.56274.56272.61712.61712.0463
H61.09302.14423.33214.45614.77361.77461.77462.51282.51285.3095
H71.09172.15232.62863.89494.56271.77461.77383.07432.51364.4946
H81.09172.15232.62863.89494.56271.77461.77382.51363.07434.4946
H92.17201.09282.07252.60192.61712.51283.07432.51361.76613.6005
H102.17201.09282.07252.60192.61712.51282.51363.07431.76613.6005
H114.36083.28301.98781.09812.04635.30954.49464.49463.60053.6005

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 107.043 C1 C2 H9 112.036
C1 C2 H10 112.036 C2 C1 H6 109.801
C2 C1 H7 110.519 C2 C1 H8 110.519
C2 O3 C4 114.374 O3 C2 H9 108.922
O3 C2 H10 108.922 O3 C4 O5 125.938
O3 C4 H11 108.738 O5 C4 H11 125.325
H6 C1 H7 108.644 H6 C1 H8 108.644
H7 C1 H8 108.664 H9 C2 H10 107.812
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability