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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-268.232790
Energy at 298.15K 
HF Energy-267.930502
Nuclear repulsion energy177.609571
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' 3142 3142 23.91      
2 A' 3083 3083 11.00      
3 A' 3071 3071 70.16      
4 A' 3066 3066 17.14      
5 A' 1795 1795 285.06      
6 A' 1537 1537 7.90      
7 A' 1516 1516 2.76      
8 A' 1444 1444 18.39      
9 A' 1410 1410 0.43      
10 A' 1407 1407 3.33      
11 A' 1216 1216 410.18      
12 A' 1146 1146 11.25      
13 A' 1044 1044 17.67      
14 A' 868 868 13.98      
15 A' 793 793 1.86      
16 A' 384 384 5.87      
17 A' 230 230 6.70      
18 A" 3153 3153 39.24      
19 A" 3124 3124 5.06      
20 A" 1501 1501 6.89      
21 A" 1313 1313 1.50      
22 A" 1195 1195 4.49      
23 A" 1047 1047 0.05      
24 A" 821 821 0.50      
25 A" 350 350 21.39      
26 A" 243 243 2.34      
27 A" 63 63 0.60      

Unscaled Zero Point Vibrational Energy (zpe) 19981.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 19981.4 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/6-311G**
ABC
0.59691 0.09654 0.08576

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 -0.268 0.000
C2 -0.696 -0.569 0.000
O3 0.000 0.701 0.000
C4 1.338 0.624 0.000
O5 1.987 -0.389 0.000
H6 -2.745 -1.201 0.000
H7 -2.455 0.306 0.885
H8 -2.455 0.306 -0.885
H9 -0.390 -1.135 -0.882
H10 -0.390 -1.135 0.882
H11 1.752 1.640 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51242.38363.62764.16681.09201.09091.09092.17382.17384.3686
C21.51241.44832.35842.68912.14442.15542.15541.09131.09133.2975
O32.38361.44831.34072.26643.33952.63982.63982.07372.07371.9879
C43.62762.35841.34071.20274.47273.90873.90872.61902.61901.0972
O54.16682.68912.26641.20274.80144.58284.58282.64312.64312.0426
H61.09202.14443.33954.47274.80141.77161.77162.51552.51555.3194
H71.09092.15542.63983.90874.58281.77161.77093.07632.51804.5018
H81.09092.15542.63983.90874.58281.77161.77092.51803.07634.5018
H92.17381.09132.07372.61902.64312.51553.07632.51801.76373.6150
H102.17381.09132.07372.61902.64312.51552.51803.07631.76373.6150
H114.36863.29751.98791.09722.04265.31944.50184.50183.61503.6150

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 107.213 C1 C2 H9 112.195
C1 C2 H10 112.195 C2 C1 H6 109.794
C2 C1 H7 110.734 C2 C1 H8 110.734
C2 O3 C4 115.417 O3 C2 H9 108.665
O3 C2 H10 108.665 O3 C4 O5 125.937
O3 C4 H11 108.850 O5 C4 H11 125.213
H6 C1 H7 108.498 H6 C1 H8 108.498
H7 C1 H8 108.519 H9 C2 H10 107.811
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability