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

using model chemistry: B2PLYP=FULLultrafine/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=FULLultrafine/6-31G
 hartrees
Energy at 0K-267.933355
Energy at 298.15K 
HF Energy-267.750159
Nuclear repulsion energy174.284438
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/6-31G
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' 3158 3158 14.58      
2 A' 3158 3158 55.05      
3 A' 3101 3101 10.54      
4 A' 3079 3079 15.34      
5 A' 1670 1670 216.18      
6 A' 1574 1574 11.38      
7 A' 1562 1562 4.56      
8 A' 1484 1484 10.15      
9 A' 1431 1431 14.44      
10 A' 1405 1405 12.67      
11 A' 1165 1165 372.89      
12 A' 1163 1163 17.19      
13 A' 1045 1045 14.88      
14 A' 815 815 15.08      
15 A' 764 764 1.16      
16 A' 372 372 6.65      
17 A' 214 214 7.85      
18 A" 3178 3178 38.38      
19 A" 3151 3151 3.82      
20 A" 1550 1550 7.02      
21 A" 1320 1320 0.07      
22 A" 1205 1205 7.04      
23 A" 1018 1018 0.03      
24 A" 847 847 0.97      
25 A" 338 338 30.68      
26 A" 233 233 2.94      
27 A" 49 49 0.50      

Unscaled Zero Point Vibrational Energy (zpe) 20023.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20023.4 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/6-31G
ABC
0.57874 0.09253 0.08224

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.213 -0.251 0.000
C2 -0.735 -0.596 0.000
O3 0.000 0.702 0.000
C4 1.370 0.640 0.000
O5 2.039 -0.401 0.000
H6 -2.809 -1.170 0.000
H7 -2.474 0.332 0.887
H8 -2.474 0.332 -0.887
H9 -0.431 -1.158 -0.886
H10 -0.431 -1.158 0.886
H11 1.779 1.652 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51752.40983.69244.25521.09511.09311.09312.18772.18774.4225
C21.51751.49172.44132.78162.15172.16132.16131.09311.09313.3725
O32.40981.49171.37142.31833.37562.65422.65422.10532.10532.0166
C43.69242.44131.37141.23754.55423.95713.95712.69502.69501.0912
O54.25522.78162.31831.23754.90904.65784.65782.73152.73152.0689
H61.09512.15173.37564.55424.90901.77621.77622.53812.53815.3863
H71.09312.16132.65423.95714.65781.77621.77383.08892.52934.5406
H81.09312.16132.65423.95714.65781.77621.77382.52933.08894.5406
H92.18771.09312.10532.69502.73152.53813.08892.52931.77263.6831
H102.18771.09312.10532.69502.73152.53812.52933.08891.77263.6831
H114.42253.37252.01661.09122.06895.38634.54064.54063.68313.6831

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 106.406 C1 C2 H9 112.849
C1 C2 H10 112.849 C2 C1 H6 109.830
C2 C1 H7 110.712 C2 C1 H8 110.712
C2 O3 C4 116.950 O3 C2 H9 108.082
O3 C2 H10 108.082 O3 C4 O5 125.331
O3 C4 H11 109.426 O5 C4 H11 125.242
H6 C1 H7 108.531 H6 C1 H8 108.531
H7 C1 H8 108.461 H9 C2 H10 108.359
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability