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

using model chemistry: B2PLYP=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 B2PLYP=FULL/6-311G*
 hartrees
Energy at 0K-268.213287
Energy at 298.15K-268.220495
HF Energy-267.922116
Nuclear repulsion energy177.609615
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/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3147 3147 27.64      
2 A' 3093 3093 11.35      
3 A' 3082 3082 76.59      
4 A' 3073 3073 18.32      
5 A' 1799 1799 289.04      
6 A' 1553 1553 8.59      
7 A' 1532 1532 3.19      
8 A' 1455 1455 20.16      
9 A' 1420 1420 1.50      
10 A' 1415 1415 3.06      
11 A' 1218 1218 409.13      
12 A' 1152 1152 12.34      
13 A' 1046 1046 18.05      
14 A' 869 869 14.13      
15 A' 795 795 1.62      
16 A' 385 385 5.96      
17 A' 230 230 6.84      
18 A" 3159 3159 46.51      
19 A" 3133 3133 3.26      
20 A" 1520 1520 7.96      
21 A" 1325 1325 1.19      
22 A" 1203 1203 4.54      
23 A" 1039 1039 0.04      
24 A" 824 824 0.52      
25 A" 350 350 21.91      
26 A" 240 240 2.29      
27 A" 65 65 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 20061.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20061.1 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 B2PLYP=FULL/6-311G*
ABC
0.59817 0.09644 0.08571

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.178 -0.267 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 -2.748 -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
C11.51172.38293.62684.16911.09171.09051.09052.17402.17404.3688
C21.51171.44812.35862.69242.14532.15602.15601.09091.09093.2984
O32.38291.44811.34022.26743.33972.64082.64082.07242.07241.9889
C43.62682.35861.34021.20274.47343.90953.90952.61792.61791.0971
O54.16912.69242.26741.20274.80624.58644.58642.64512.64512.0402
H61.09172.14533.33974.47344.80621.76941.76942.51802.51805.3206
H71.09052.15602.64083.90954.58641.76941.76883.07692.52004.5037
H81.09052.15602.64083.90954.58641.76941.76882.52003.07694.5037
H92.17401.09092.07242.61792.64512.51803.07692.52001.76223.6143
H102.17401.09092.07242.61792.64512.51802.52003.07691.76223.6143
H114.36883.29841.98891.09712.04025.32064.50374.50373.61433.6143

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 107.217 C1 C2 H9 112.285
C1 C2 H10 112.285 C2 C1 H6 109.935
C2 C1 H7 110.857 C2 C1 H8 110.857
C2 O3 C4 115.481 O3 C2 H9 108.603
O3 C2 H10 108.603 O3 C4 O5 126.079
O3 C4 H11 108.966 O5 C4 H11 124.955
H6 C1 H7 108.361 H6 C1 H8 108.361
H7 C1 H8 108.392 H9 C2 H10 107.741
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability