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

using model chemistry: B2PLYP=FULLultrafine/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-268.307967
Energy at 298.15K 
HF Energy-267.957915
Nuclear repulsion energy177.893306
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/6-311+G(3df,2p)
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' 3138 3138 18.80      
2 A' 3080 3080 8.28      
3 A' 3072 3072 54.23      
4 A' 3064 3064 14.05      
5 A' 1779 1779 325.18      
6 A' 1534 1534 8.91      
7 A' 1516 1516 2.63      
8 A' 1438 1438 12.68      
9 A' 1409 1409 0.30      
10 A' 1405 1405 4.95      
11 A' 1218 1218 408.42      
12 A' 1143 1143 8.68      
13 A' 1040 1040 20.59      
14 A' 861 861 13.60      
15 A' 790 790 1.29      
16 A' 383 383 5.11      
17 A' 228 228 7.39      
18 A" 3149 3149 30.60      
19 A" 3121 3121 2.35      
20 A" 1504 1504 6.67      
21 A" 1310 1310 1.37      
22 A" 1190 1190 3.79      
23 A" 1048 1048 0.00      
24 A" 819 819 0.64      
25 A" 350 350 21.07      
26 A" 241 241 2.44      
27 A" 68 68 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 19947.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19947.8 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/6-311+G(3df,2p)
ABC
0.60170 0.09658 0.08587

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.176 -0.276 0.000
C2 -0.696 -0.571 0.000
O3 0.000 0.697 0.000
C4 1.334 0.629 0.000
O5 1.989 -0.378 0.000
H6 -2.735 -1.210 0.000
H7 -2.458 0.293 0.883
H8 -2.458 0.293 -0.883
H9 -0.388 -1.133 -0.880
H10 -0.388 -1.133 0.880
H11 1.747 1.643 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.50852.38313.62434.16571.08861.08771.08772.16852.16854.3670
C21.50851.44642.35852.69212.13632.15202.15201.08821.08823.2974
O32.38311.44641.33542.26053.33382.64312.64312.06682.06681.9871
C43.62432.35851.33541.20164.46513.90813.90812.61642.61641.0946
O54.16572.69212.26051.20164.79654.58344.58342.64492.64492.0351
H61.08862.13633.33384.46514.79651.76481.76482.50712.50715.3130
H71.08772.15202.64313.90814.58341.76481.76563.07002.51364.5043
H81.08772.15202.64313.90814.58341.76481.76562.51363.07004.5043
H92.16851.08822.06682.61642.64492.50713.07002.51361.75953.6111
H102.16851.08822.06682.61642.64492.50712.51363.07001.75953.6111
H114.36703.29741.98711.09462.03515.31304.50434.50433.61113.6111

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 107.489 C1 C2 H9 112.238
C1 C2 H10 112.238 C2 C1 H6 109.624
C2 C1 H7 110.937 C2 C1 H8 110.937
C2 O3 C4 115.893 O3 C2 H9 108.434
O3 C2 H10 108.434 O3 C4 O5 125.923
O3 C4 H11 109.313 O5 C4 H11 124.765
H6 C1 H7 108.376 H6 C1 H8 108.376
H7 C1 H8 108.515 H9 C2 H10 107.887
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability