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

using model chemistry: MP3=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 MP3=FULL/6-311G**
 hartrees
Energy at 0K-267.844424
Energy at 298.15K-267.851743
HF Energy-266.899045
Nuclear repulsion energy178.545655
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 MP3=FULL/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' 3181 3181 22.71      
2 A' 3125 3125 53.54      
3 A' 3116 3116 23.16      
4 A' 3098 3098 14.46      
5 A' 1898 1898 315.11      
6 A' 1555 1555 8.45      
7 A' 1526 1526 2.31      
8 A' 1471 1471 19.51      
9 A' 1451 1451 2.08      
10 A' 1426 1426 0.20      
11 A' 1282 1282 450.54      
12 A' 1168 1168 9.66      
13 A' 1085 1085 13.40      
14 A' 905 905 11.05      
15 A' 819 819 5.24      
16 A' 395 395 6.31      
17 A' 242 242 6.65      
18 A" 3188 3188 37.10      
19 A" 3158 3158 8.12      
20 A" 1511 1511 5.68      
21 A" 1339 1339 2.23      
22 A" 1214 1214 4.54      
23 A" 1086 1086 0.35      
24 A" 830 830 0.11      
25 A" 345 345 22.16      
26 A" 246 246 2.86      
27 A" 79 79 0.43      

Unscaled Zero Point Vibrational Energy (zpe) 20368.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20368.9 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 MP3=FULL/6-311G**
ABC
0.60069 0.09782 0.08686

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.169 -0.273 0.000
C2 -0.681 -0.561 0.000
O3 0.000 0.701 0.000
C4 1.330 0.621 0.000
O5 1.968 -0.387 0.000
H6 -2.728 -1.212 0.000
H7 -2.448 0.301 0.887
H8 -2.448 0.301 -0.887
H9 -0.379 -1.130 -0.883
H10 -0.379 -1.130 0.883
H11 1.755 1.633 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51572.37763.61184.13901.09321.09231.09232.17262.17264.3620
C21.51571.43432.33332.65512.14812.15652.15651.09291.09293.2783
O32.37761.43431.33282.24903.33212.63422.63422.06802.06801.9867
C43.61182.33331.33281.19314.45343.89413.89412.60152.60151.0972
O54.13902.65512.24901.19314.76854.55654.55652.61542.61542.0314
H61.09322.14813.33214.45344.76851.77561.77562.51122.51125.3094
H71.09232.15652.63423.89414.55651.77561.77433.07582.51564.4970
H81.09232.15652.63423.89414.55651.77561.77432.51563.07584.4970
H92.17261.09292.06802.60152.61542.51123.07582.51561.76523.6009
H102.17261.09292.06802.60152.61542.51122.51563.07581.76523.6009
H114.36203.27831.98671.09722.03145.30944.49704.49703.60093.6009

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 107.375 C1 C2 H9 111.765
C1 C2 H10 111.765 C2 C1 H6 109.791
C2 C1 H7 110.510 C2 C1 H8 110.510
C2 O3 C4 114.915 O3 C2 H9 109.082
O3 C2 H10 109.082 O3 C4 O5 125.759
O3 C4 H11 109.309 O5 C4 H11 124.931
H6 C1 H7 108.680 H6 C1 H8 108.680
H7 C1 H8 108.621 H9 C2 H10 107.724
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability