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

using model chemistry: MP3=FULL/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 MP3=FULL/6-31G**
 hartrees
Energy at 0K-267.657477
Energy at 298.15K-267.664782
HF Energy-266.837302
Nuclear repulsion energy178.202646
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/6-31G**
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' 3241 3241 20.50      
2 A' 3182 3182 55.62      
3 A' 3165 3165 17.84      
4 A' 3152 3152 13.40      
5 A' 1902 1902 292.41      
6 A' 1589 1589 5.55      
7 A' 1566 1566 2.09      
8 A' 1496 1496 17.21      
9 A' 1467 1467 3.62      
10 A' 1449 1449 4.14      
11 A' 1289 1289 431.17      
12 A' 1181 1181 8.75      
13 A' 1088 1088 13.70      
14 A' 905 905 11.95      
15 A' 815 815 5.00      
16 A' 395 395 6.47      
17 A' 239 239 7.50      
18 A" 3250 3250 31.23      
19 A" 3215 3215 11.71      
20 A" 1555 1555 4.30      
21 A" 1344 1344 1.01      
22 A" 1230 1230 5.16      
23 A" 1081 1081 0.78      
24 A" 839 839 0.11      
25 A" 350 350 23.27      
26 A" 250 250 3.17      
27 A" 74 74 0.43      

Unscaled Zero Point Vibrational Energy (zpe) 20653.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20653.8 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 MP3=FULL/6-31G**
ABC
0.59684 0.09753 0.08652

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.170 -0.261 0.000
C2 -0.690 -0.562 0.000
O3 0.000 0.704 0.000
C4 1.335 0.618 0.000
O5 1.973 -0.401 0.000
H6 -2.735 -1.190 0.000
H7 -2.444 0.312 0.882
H8 -2.444 0.312 -0.882
H9 -0.388 -1.127 -0.879
H10 -0.388 -1.127 0.879
H11 1.766 1.621 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51092.37503.61354.14601.08721.08631.08632.16802.16804.3627
C21.51091.44152.34332.66792.13952.14862.14861.08761.08763.2855
O32.37501.44151.33732.26173.32662.62752.62752.06772.06771.9897
C43.61352.34331.33731.20324.45333.89203.89202.60492.60491.0915
O54.14602.66792.26171.20324.77394.56024.56022.62172.62172.0331
H61.08722.13953.32664.45334.77391.76531.76532.50712.50715.3063
H71.08632.14862.62753.89204.56021.76531.76423.06532.50934.4958
H81.08632.14862.62753.89204.56021.76531.76422.50933.06534.4958
H92.16801.08762.06772.60492.62172.50713.06532.50931.75713.6003
H102.16801.08762.06772.60492.62172.50712.50933.06531.75713.6003
H114.36273.28551.98971.09152.03315.30634.49584.49583.60033.6003

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 107.093 C1 C2 H9 112.071
C1 C2 H10 112.071 C2 C1 H6 109.798
C2 C1 H7 110.582 C2 C1 H8 110.582
C2 O3 C4 114.924 O3 C2 H9 108.881
O3 C2 H10 108.881 O3 C4 O5 125.727
O3 C4 H11 109.595 O5 C4 H11 124.678
H6 C1 H7 108.619 H6 C1 H8 108.619
H7 C1 H8 108.587 H9 C2 H10 107.769
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability