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

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/6-311G*
 hartrees
Energy at 0K-268.213290
Energy at 298.15K 
HF Energy-267.922118
Nuclear repulsion energy177.611241
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=FULLultrafine/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' 3147 3147 27.64      
2 A' 3093 3093 11.52      
3 A' 3081 3081 76.32      
4 A' 3073 3073 18.40      
5 A' 1799 1799 288.98      
6 A' 1553 1553 8.59      
7 A' 1532 1532 3.18      
8 A' 1456 1456 20.20      
9 A' 1421 1421 1.60      
10 A' 1416 1416 2.94      
11 A' 1218 1218 409.08      
12 A' 1153 1153 12.36      
13 A' 1046 1046 17.98      
14 A' 870 870 14.16      
15 A' 795 795 1.63      
16 A' 385 385 5.95      
17 A' 230 230 6.85      
18 A" 3159 3159 46.49      
19 A" 3133 3133 3.25      
20 A" 1521 1521 7.97      
21 A" 1325 1325 1.20      
22 A" 1203 1203 4.54      
23 A" 1039 1039 0.04      
24 A" 824 824 0.52      
25 A" 351 351 21.77      
26 A" 244 244 2.43      
27 A" 67 67 0.57      

Unscaled Zero Point Vibrational Energy (zpe) 20065.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20065.7 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 B2PLYP=FULLultrafine/6-311G*
ABC
0.59815 0.09645 0.08571

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.178 -0.266 0.000
C2 -0.697 -0.569 0.000
O3 0.000 0.700 0.000
C4 1.338 0.623 0.000
O5 1.989 -0.388 0.000
H6 -2.749 -1.197 0.000
H7 -2.457 0.307 0.884
H8 -2.457 0.307 -0.884
H9 -0.390 -1.135 -0.881
H10 -0.390 -1.135 0.881
H11 1.754 1.638 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51172.38293.62684.16901.09171.09051.09052.17402.17404.3688
C21.51171.44812.35852.69232.14542.15602.15601.09091.09093.2984
O32.38291.44811.34022.26743.33972.64072.64072.07242.07241.9889
C43.62682.35851.34021.20274.47353.90943.90942.61782.61781.0971
O54.16902.69232.26741.20274.80624.58634.58632.64492.64492.0402
H61.09172.14543.33974.47354.80621.76941.76942.51822.51825.3207
H71.09052.15602.64073.90944.58631.76941.76883.07692.52004.5037
H81.09052.15602.64073.90944.58631.76941.76882.52003.07694.5037
H92.17401.09092.07242.61782.64492.51823.07692.52001.76223.6142
H102.17401.09092.07242.61782.64492.51822.52003.07691.76223.6142
H114.36883.29841.98891.09712.04025.32074.50374.50373.61423.6142

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 107.215 C1 C2 H9 112.288
C1 C2 H10 112.288 C2 C1 H6 109.944
C2 C1 H7 110.853 C2 C1 H8 110.853
C2 O3 C4 115.477 O3 C2 H9 108.600
O3 C2 H10 108.600 O3 C4 O5 126.077
O3 C4 H11 108.967 O5 C4 H11 124.956
H6 C1 H7 108.360 H6 C1 H8 108.360
H7 C1 H8 108.390 H9 C2 H10 107.743
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability