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All results from a given calculation for C4H8O2 (Ethyl acetate)

using model chemistry: CCD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/cc-pVTZ
 hartrees
Energy at 0K-307.162925
Energy at 298.15K 
HF Energy-305.990819
Nuclear repulsion energy244.776478
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 CCD/cc-pVTZ
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' 3202 2990 5.86      
2 A' 3154 2945 21.32      
3 A' 3093 2888 15.47      
4 A' 3088 2884 1.53      
5 A' 3073 2869 14.34      
6 A' 1876 1751 255.50      
7 A' 1549 1446 4.86      
8 A' 1522 1421 2.67      
9 A' 1496 1397 12.94      
10 A' 1462 1365 10.71      
11 A' 1432 1337 92.75      
12 A' 1414 1320 19.07      
13 A' 1324 1236 411.42      
14 A' 1166 1089 23.25      
15 A' 1126 1051 66.73      
16 A' 1035 966 7.11      
17 A' 977 912 5.22      
18 A' 891 832 9.69      
19 A' 657 614 9.11      
20 A' 435 406 0.84      
21 A' 379 354 9.21      
22 A' 199 186 5.05      
23 A" 3162 2952 7.65      
24 A" 3161 2951 31.49      
25 A" 3133 2926 3.93      
26 A" 1509 1409 5.91      
27 A" 1503 1403 7.02      
28 A" 1323 1236 1.53      
29 A" 1206 1126 3.73      
30 A" 1091 1018 5.31      
31 A" 823 769 0.30      
32 A" 623 582 5.77      
33 A" 268 250 1.05      
34 A" 154 144 4.49      
35 A" 79 73 0.08      
36 A" 65 61 0.57      

Unscaled Zero Point Vibrational Energy (zpe) 26323.8 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 24578.5 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 CCD/cc-pVTZ
ABC
0.28432 0.07046 0.05830

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.303 0.029 0.000
C2 -0.901 -0.515 0.000
O3 0.000 0.479 0.000
O4 -0.607 -1.678 0.000
C5 1.371 0.062 0.000
C6 2.223 1.311 0.000
H7 -3.010 -0.793 0.000
H8 -2.453 0.654 0.878
H9 -2.453 0.654 -0.878
H10 1.555 -0.554 0.879
H11 1.555 -0.554 -0.879
H12 3.277 1.038 0.000
H13 2.021 1.914 -0.883
H14 2.021 1.914 0.883

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50332.34622.40663.67374.70311.08451.08851.08853.99943.99945.67054.79924.7992
C21.50331.34151.20022.34413.61802.12702.13232.13232.60922.60924.45783.90173.9017
O32.34621.34152.24081.43302.37303.26762.61162.61162.06362.06363.32482.63202.6320
O42.40661.20022.24082.63394.11542.56123.10193.10192.59022.59024.73964.53814.5381
C53.67372.34411.43302.63391.51174.46343.96823.96821.08911.08912.14202.15322.1532
C64.70313.61802.37304.11541.51175.63954.80264.80262.16702.16701.08951.08881.0888
H71.08452.12703.26762.56124.46345.63951.78211.78214.65504.65506.54855.78145.7814
H81.08852.13232.61163.10193.96824.80261.78211.75694.18654.54055.81034.97144.6488
H91.08852.13232.61163.10193.96824.80261.78211.75694.54054.18655.81034.64884.9714
H103.99942.60922.06362.59021.08912.16704.65504.18654.54051.75832.50503.06892.5123
H113.99942.60922.06362.59021.08912.16704.65504.54054.18651.75832.50502.51233.0689
H125.67054.45783.32484.73962.14201.08956.54855.81035.81032.50502.50501.76791.7679
H134.79923.90172.63204.53812.15321.08885.78144.97144.64883.06892.51231.76791.7669
H144.79923.90172.63204.53812.15321.08885.78144.64884.97142.51233.06891.76791.7669

picture of Ethyl acetate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 110.991 C1 C2 O4 125.423
C2 C1 H7 109.489 C2 C1 H8 109.676
C2 C1 H9 109.676 C2 O3 C5 115.273
O3 C2 O4 123.585 O3 C5 C6 107.358
O3 C5 H10 109.053 O3 C5 H11 109.053
C5 C6 H12 109.812 C5 C6 H13 110.741
C5 C6 H14 110.741 C6 C5 H10 111.834
C6 C5 H11 111.834 H7 C1 H8 110.185
H7 C1 H9 110.185 H8 C1 H9 107.607
H10 C5 H11 107.657 H12 C6 H13 108.510
H12 C6 H14 108.510 H13 C6 H14 108.462
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability