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

using model chemistry: B2PLYP=FULL/cc-pVDZ

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=FULL/cc-pVDZ
 hartrees
Energy at 0K-268.136267
Energy at 298.15K-268.143463
HF Energy-267.873044
Nuclear repulsion energy177.219150
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=FULL/cc-pVDZ
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' 3159 3028 19.14      
2 A' 3084 2956 10.37      
3 A' 3073 2945 15.38      
4 A' 3069 2942 75.83      
5 A' 1805 1731 274.05      
6 A' 1511 1448 6.63      
7 A' 1490 1429 1.99      
8 A' 1427 1368 16.38      
9 A' 1394 1336 0.91      
10 A' 1385 1328 3.55      
11 A' 1221 1170 400.93      
12 A' 1140 1092 10.49      
13 A' 1049 1005 19.19      
14 A' 866 830 12.62      
15 A' 790 757 2.43      
16 A' 382 366 6.03      
17 A' 230 221 6.21      
18 A" 3167 3035 30.85      
19 A" 3132 3002 10.28      
20 A" 1475 1414 5.86      
21 A" 1295 1241 1.18      
22 A" 1181 1132 4.63      
23 A" 1039 996 0.15      
24 A" 813 780 0.69      
25 A" 350 336 18.69      
26 A" 243 233 2.15      
27 A" 61 59 0.52      

Unscaled Zero Point Vibrational Energy (zpe) 19915.4 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 19088.9 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 B2PLYP=FULL/cc-pVDZ
ABC
0.58980 0.09659 0.08569

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.178 -0.262 0.000
C2 -0.695 -0.564 0.000
O3 0.000 0.706 0.000
C4 1.341 0.620 0.000
O5 1.984 -0.402 0.000
H6 -2.751 -1.201 0.000
H7 -2.459 0.317 0.892
H8 -2.459 0.317 -0.892
H9 -0.387 -1.137 -0.888
H10 -0.387 -1.137 0.888
H11 1.763 1.643 0.000

Atom - Atom Distances (Å)
  C1 C2 O3 C4 O5 H6 H7 H8 H9 H10 H11
C11.51332.38363.62784.16471.10011.09961.09962.18222.18224.3774
C21.51331.44852.35562.68452.15162.16362.16361.10041.10043.3041
O32.38361.44851.34382.27303.34732.64422.64422.08212.08211.9965
C43.62782.35561.34381.20774.47853.91463.91462.61902.61901.1071
O54.16472.68452.27301.20774.80174.58834.58832.63632.63632.0576
H61.10012.15163.34734.47854.80171.78481.78482.52562.52565.3351
H71.09962.16362.64423.91464.58831.78481.78373.09392.53094.5141
H81.09962.16362.64423.91464.58831.78481.78372.53093.09394.5141
H92.18221.10042.08212.61902.63632.52563.09392.53091.77533.6248
H102.18221.10042.08212.61902.63632.52562.53093.09391.77533.6248
H114.37743.30411.99651.10712.05765.33514.51414.51413.62483.6248

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 107.156 C1 C2 H9 112.250
C1 C2 H10 112.250 C2 C1 H6 109.824
C2 C1 H7 110.806 C2 C1 H8 110.806
C2 O3 C4 114.992 O3 C2 H9 108.776
O3 C2 H10 108.776 O3 C4 O5 125.879
O3 C4 H11 108.711 O5 C4 H11 125.410
H6 C1 H7 108.463 H6 C1 H8 108.463
H7 C1 H8 108.407 H9 C2 H10 107.545
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability