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

using model chemistry: B2PLYP=FULL/6-31G**

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 B2PLYP=FULL/6-31G**
 hartrees
Energy at 0K-268.129593
Energy at 298.15K-268.136793
HF Energy-267.865325
Nuclear repulsion energy177.390362
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 B2PLYP=FULL/6-31G**
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' 3179 3179 20.43      
2 A' 3109 3109 6.68      
3 A' 3104 3104 71.99      
4 A' 3097 3097 14.56      
5 A' 1815 1815 262.59      
6 A' 1555 1555 6.41      
7 A' 1536 1536 2.23      
8 A' 1460 1460 15.01      
9 A' 1423 1423 1.30      
10 A' 1417 1417 6.87      
11 A' 1235 1235 394.05      
12 A' 1154 1154 9.62      
13 A' 1052 1052 17.29      
14 A' 871 871 12.71      
15 A' 794 794 2.67      
16 A' 384 384 6.00      
17 A' 229 229 7.17      
18 A" 3189 3189 32.26      
19 A" 3157 3157 8.90      
20 A" 1525 1525 4.91      
21 A" 1316 1316 0.77      
22 A" 1204 1204 4.85      
23 A" 1046 1046 0.36      
24 A" 824 824 0.49      
25 A" 353 353 20.92      
26 A" 243 243 2.21      
27 A" 60 60 0.53      

Unscaled Zero Point Vibrational Energy (zpe) 20165.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20165.2 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 B2PLYP=FULL/6-31G**
ABC
0.59306 0.09649 0.08564

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.179 -0.261 0.000
C2 -0.698 -0.565 0.000
O3 0.000 0.705 0.000
C4 1.340 0.621 0.000
O5 1.988 -0.401 0.000
H6 -2.746 -1.193 0.000
H7 -2.457 0.312 0.885
H8 -2.457 0.312 -0.885
H9 -0.392 -1.132 -0.881
H10 -0.392 -1.132 0.881
H11 1.762 1.634 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51212.38363.62804.16891.09101.09001.09002.17402.17404.3725
C21.51211.44912.35802.69032.14292.15542.15541.09101.09103.2990
O32.38361.44911.34272.27453.33852.64042.64042.07442.07441.9915
C43.62802.35801.34271.21004.47123.91063.91062.61722.61721.0967
O54.16892.69032.27451.21004.79994.58714.58712.64072.64072.0471
H61.09102.14293.33854.47124.79991.76961.76962.51452.51455.3211
H71.09002.15542.64043.91064.58711.76961.76923.07622.51924.5080
H81.09002.15542.64043.91064.58711.76961.76922.51923.07624.5080
H92.17401.09102.07442.61722.64072.51453.07622.51921.76183.6142
H102.17401.09102.07442.61722.64072.51452.51923.07621.76183.6142
H114.37253.29901.99151.09672.04715.32114.50804.50803.61423.6142

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 107.186 C1 C2 H9 112.253
C1 C2 H10 112.253 C2 C1 H6 109.754
C2 C1 H7 110.804 C2 C1 H8 110.804
C2 O3 C4 115.207 O3 C2 H9 108.684
O3 C2 H10 108.684 O3 C4 O5 125.928
O3 C4 H11 109.032 O5 C4 H11 125.040
H6 C1 H7 108.461 H6 C1 H8 108.461
H7 C1 H8 108.488 H9 C2 H10 107.686
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability