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

using model chemistry: LSDA/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/6-31G**
 hartrees
Energy at 0K-306.105321
Energy at 298.15K 
HF Energy-306.105321
Nuclear repulsion energy244.984692
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 LSDA/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' 3140 3082 1.20      
2 A' 3095 3038 9.60      
3 A' 3011 2955 0.30      
4 A' 3002 2946 10.54      
5 A' 2986 2930 13.10      
6 A' 1828 1794 197.79      
7 A' 1463 1436 10.77      
8 A' 1441 1414 1.14      
9 A' 1411 1385 18.65      
10 A' 1384 1358 35.23      
11 A' 1352 1327 171.51      
12 A' 1317 1292 16.26      
13 A' 1272 1248 244.77      
14 A' 1120 1099 11.65      
15 A' 1099 1078 64.19      
16 A' 976 958 6.92      
17 A' 963 945 2.45      
18 A' 854 838 3.68      
19 A' 641 629 6.17      
20 A' 418 410 0.97      
21 A' 368 361 11.55      
22 A' 194 190 5.15      
23 A" 3093 3035 13.93      
24 A" 3091 3033 0.58      
25 A" 3026 2970 11.47      
26 A" 1428 1402 8.57      
27 A" 1415 1388 12.14      
28 A" 1242 1218 0.71      
29 A" 1138 1116 4.76      
30 A" 1015 996 9.07      
31 A" 773 758 2.77      
32 A" 587 576 2.30      
33 A" 266 261 1.00      
34 A" 159 156 3.53      
35 A" 34 34 0.07      
36 A" 22 21 1.33      

Unscaled Zero Point Vibrational Energy (zpe) 25311.9 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 24838.5 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 LSDA/6-31G**
ABC
0.28338 0.07128 0.05885

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.295 0.052 0.000
C2 -0.907 -0.492 0.000
O3 0.000 0.499 0.000
O4 -0.600 -1.666 0.000
C5 1.353 0.049 0.000
C6 2.233 1.260 0.000
H7 -3.012 -0.779 0.000
H8 -2.455 0.688 0.885
H9 -2.455 0.688 -0.885
H10 1.516 -0.595 0.884
H11 1.516 -0.595 -0.884
H12 3.293 0.962 0.000
H13 2.050 1.881 -0.892
H14 2.050 1.881 0.892

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.49042.33802.41293.64804.68621.09711.10181.10183.96473.96475.66164.79754.7975
C21.49041.34371.21332.32443.59622.12422.13852.13852.58112.58114.44513.89493.8949
O32.33801.34372.24671.42592.35913.27172.61692.61692.06762.06763.32552.62802.6280
O42.41291.21332.24672.59984.07342.56993.12523.12522.53102.53104.69774.51654.5165
C53.64802.32441.42592.59981.49704.44303.96203.96201.10571.10572.14412.15292.1529
C64.68623.59622.35914.07341.49705.62724.80524.80522.17692.17691.10141.10161.1016
H71.09712.12423.27172.56994.44305.62721.80101.80104.61684.61686.54105.78695.7869
H81.10182.13852.61693.12523.96204.80521.80101.77004.17324.53265.82274.98764.6603
H91.10182.13852.61693.12523.96204.80521.80101.77004.53264.17325.82274.66034.9876
H103.96472.58112.06762.53101.10572.17694.61684.17324.53261.76772.52313.09332.5328
H113.96472.58112.06762.53101.10572.17694.61684.53264.17321.76772.52312.53283.0933
H125.66164.44513.32554.69772.14411.10146.54105.82275.82272.52312.52311.78461.7846
H134.79753.89492.62804.51652.15291.10165.78694.98764.66033.09332.53281.78461.7837
H144.79753.89492.62804.51652.15291.10165.78694.66034.98762.53283.09331.78461.7837

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 111.062 C1 C2 O4 126.059
C2 C1 H7 109.421 C2 C1 H8 110.276
C2 C1 H9 110.276 C2 O3 C5 114.089
O3 C2 O4 122.878 O3 C5 C6 107.603
O3 C5 H10 108.853 O3 C5 H11 108.853
C5 C6 H12 110.277 C5 C6 H13 110.973
C5 C6 H14 110.973 C6 C5 H10 112.655
C6 C5 H11 112.655 H7 C1 H8 109.982
H7 C1 H9 109.982 H8 C1 H9 106.875
H10 C5 H11 106.130 H12 C6 H13 108.205
H12 C6 H14 108.205 H13 C6 H14 108.105
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.505      
2 C 0.491      
3 O -0.369      
4 O -0.413      
5 C -0.056      
6 C -0.455      
7 H 0.177      
8 H 0.179      
9 H 0.179      
10 H 0.154      
11 H 0.154      
12 H 0.149      
13 H 0.157      
14 H 0.157      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.197 1.924 0.000 1.934
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.171 -1.023 0.000
y -1.023 -41.598 0.000
z 0.000 0.000 -35.234
Traceless
 xyz
x 8.245 -1.023 0.000
y -1.023 -8.895 0.000
z 0.000 0.000 0.650
Polar
3z2-r21.300
x2-y211.427
xy-1.023
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.026 0.492 0.000
y 0.492 7.527 0.000
z 0.000 0.000 5.831


<r2> (average value of r2) Å2
<r2> 197.767
(<r2>)1/2 14.063