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

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

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/6-31+G**
 hartrees
Energy at 0K-268.143849
Energy at 298.15K 
HF Energy-267.875352
Nuclear repulsion energy177.022577
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/6-31+G**
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' 3168 3168 21.13      
2 A' 3119 3119 46.00      
3 A' 3109 3109 18.68      
4 A' 3088 3088 16.32      
5 A' 1778 1778 339.18      
6 A' 1542 1542 7.40      
7 A' 1526 1526 3.28      
8 A' 1453 1453 17.86      
9 A' 1413 1413 1.42      
10 A' 1408 1408 5.72      
11 A' 1224 1224 413.86      
12 A' 1149 1149 8.28      
13 A' 1043 1043 19.79      
14 A' 861 861 15.80      
15 A' 784 784 1.43      
16 A' 382 382 5.27      
17 A' 226 226 7.98      
18 A" 3183 3183 34.37      
19 A" 3157 3157 2.57      
20 A" 1514 1514 7.40      
21 A" 1311 1311 1.18      
22 A" 1195 1195 4.55      
23 A" 1038 1038 0.00      
24 A" 822 822 0.34      
25 A" 348 348 23.83      
26 A" 241 241 2.75      
27 A" 62 62 0.64      

Unscaled Zero Point Vibrational Energy (zpe) 20072.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20072.5 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/6-31+G**
ABC
0.59439 0.09576 0.08510

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.184 -0.267 0.000
C2 -0.703 -0.572 0.000
O3 0.000 0.700 0.000
C4 1.341 0.629 0.000
O5 1.999 -0.391 0.000
H6 -2.749 -1.201 0.000
H7 -2.464 0.305 0.886
H8 -2.464 0.305 -0.886
H9 -0.396 -1.134 -0.883
H10 -0.396 -1.134 0.883
H11 1.758 1.642 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51232.38893.63774.18471.09181.09061.09062.17462.17464.3806
C21.51231.45372.37122.70782.14072.15702.15701.09081.09083.3108
O32.38891.45371.34322.27683.34292.64772.64772.07402.07401.9947
C43.63772.37121.34321.21314.48143.92013.92012.62822.62821.0954
O54.18472.70782.27681.21314.81664.60214.60212.65852.65852.0466
H61.09182.14073.34294.48144.81661.77041.77042.51432.51435.3295
H71.09062.15702.64773.92014.60211.77041.77133.07782.51884.5164
H81.09062.15702.64773.92014.60211.77041.77132.51883.07784.5164
H92.17461.09082.07402.62822.65852.51433.07782.51881.76633.6233
H102.17461.09082.07402.62822.65852.51432.51883.07781.76633.6233
H114.38063.31081.99471.09542.04665.32954.51644.51643.62333.6233

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 107.290 C1 C2 H9 112.304
C1 C2 H10 112.304 C2 C1 H6 109.523
C2 C1 H7 110.892 C2 C1 H8 110.892
C2 O3 C4 115.889 O3 C2 H9 108.344
O3 C2 H10 108.344 O3 C4 O5 125.847
O3 C4 H11 109.346 O5 C4 H11 124.807
H6 C1 H7 108.432 H6 C1 H8 108.432
H7 C1 H8 108.600 H9 C2 H10 108.117
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability