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

using model chemistry: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-307.347940
Energy at 298.15K 
HF Energy-307.347940
Nuclear repulsion energy241.718408
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 PBEPBE/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3120 3102 4.18 72.52 0.70 0.82
2 A' 3069 3052 17.05 91.52 0.70 0.82
3 A' 2993 2976 2.89 138.26 0.00 0.01
4 A' 2982 2965 16.24 170.46 0.00 0.01
5 A' 2976 2959 18.70 88.42 0.08 0.14
6 A' 1768 1758 208.77 3.15 0.29 0.45
7 A' 1441 1433 5.19 1.59 0.73 0.84
8 A' 1421 1412 2.04 20.51 0.74 0.85
9 A' 1390 1382 13.48 13.93 0.68 0.81
10 A' 1361 1353 5.43 6.57 0.69 0.82
11 A' 1330 1322 51.24 1.96 0.72 0.84
12 A' 1309 1301 28.60 3.78 0.64 0.78
13 A' 1217 1210 354.61 0.55 0.27 0.43
14 A' 1098 1092 6.06 5.48 0.15 0.26
15 A' 1042 1036 104.32 2.39 0.68 0.81
16 A' 964 958 16.74 0.81 0.16 0.27
17 A' 930 924 7.05 2.32 0.10 0.17
18 A' 830 826 6.73 7.69 0.33 0.49
19 A' 622 618 4.74 8.01 0.33 0.50
20 A' 412 409 0.62 0.44 0.59 0.74
21 A' 358 356 9.07 3.38 0.33 0.50
22 A' 188 187 4.11 0.43 0.66 0.79
23 A" 3071 3053 26.42 48.61 0.75 0.86
24 A" 3070 3053 1.75 57.98 0.75 0.86
25 A" 3019 3001 14.58 86.21 0.75 0.86
26 A" 1406 1398 6.28 16.10 0.75 0.86
27 A" 1395 1387 8.71 13.48 0.75 0.86
28 A" 1231 1224 0.67 7.40 0.75 0.86
29 A" 1123 1116 3.92 1.50 0.75 0.86
30 A" 1006 1000 5.94 0.00 0.75 0.86
31 A" 777 772 1.62 0.18 0.75 0.86
32 A" 579 576 2.33 0.87 0.75 0.86
33 A" 261 259 0.95 0.03 0.75 0.86
34 A" 152 151 3.37 0.05 0.75 0.86
35 A" 47 46 0.22 0.21 0.75 0.86
36 A" 5 5 0.98 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 24980.8 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 24835.9 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 PBEPBE/cc-pVDZ
ABC
0.27602 0.06908 0.05706

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.322 0.044 0.000
C2 -0.918 -0.517 0.000
O3 0.000 0.494 0.000
O4 -0.619 -1.700 0.000
C5 1.386 0.060 0.000
C6 2.252 1.304 0.000
H7 -3.049 -0.785 0.000
H8 -2.477 0.685 0.891
H9 -2.477 0.685 -0.891
H10 1.562 -0.577 0.892
H11 1.562 -0.577 -0.892
H12 3.323 1.019 0.000
H13 2.059 1.924 -0.898
H14 2.059 1.924 0.898

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.51222.36512.43763.70774.74451.10311.10801.10804.03344.03345.72894.85064.8506
C21.51221.36551.22022.37453.65572.14832.16082.16082.63612.63614.51073.95263.9526
O32.36511.36552.28001.45242.39343.30672.63912.63912.09412.09413.36462.66242.6624
O42.43761.22022.28002.66754.15562.59663.15173.15172.61032.61034.78944.59474.5947
C53.70772.37451.45242.66751.51644.51474.01314.01311.11041.11042.16232.17622.1762
C64.74453.65572.39344.15561.51645.69824.85204.85202.19372.19371.10831.10821.1082
H71.10312.14833.30672.59664.51475.69821.81151.81154.70144.70146.62315.85115.8511
H81.10802.16082.63913.15174.01314.85201.81151.78124.23184.59205.87795.03044.7018
H91.10802.16082.63913.15174.01314.85201.81151.78124.59204.23185.87794.70185.0304
H104.03342.63612.09412.61031.11042.19374.70144.23184.59201.78452.53933.11602.5507
H114.03342.63612.09412.61031.11042.19374.70144.59204.23181.78452.53932.55073.1160
H125.72894.51073.36464.78942.16231.10836.62315.87795.87792.53932.53931.79571.7957
H134.85063.95262.66244.59472.17621.10825.85115.03044.70183.11602.55071.79571.7952
H144.85063.95262.66244.59472.17621.10825.85114.70185.03042.55073.11601.79571.7952

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 110.441 C1 C2 O4 125.946
C2 C1 H7 109.466 C2 C1 H8 110.153
C2 C1 H9 110.153 C2 O3 C5 114.805
O3 C2 O4 123.614 O3 C5 C6 107.430
O3 C5 H10 108.860 O3 C5 H11 108.860
C5 C6 H12 109.967 C5 C6 H13 111.070
C5 C6 H14 111.070 C6 C5 H10 112.339
C6 C5 H11 112.339 H7 C1 H8 110.027
H7 C1 H9 110.027 H8 C1 H9 106.986
H10 C5 H11 106.934 H12 C6 H13 108.224
H12 C6 H14 108.224 H13 C6 H14 108.186
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.028      
2 C 0.097      
3 O -0.236      
4 O -0.224      
5 C 0.064      
6 C -0.064      
7 H 0.054      
8 H 0.063      
9 H 0.063      
10 H 0.041      
11 H 0.041      
12 H 0.038      
13 H 0.045      
14 H 0.045      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.276 1.806 0.000 1.826
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.887 -0.999 0.000
y -0.999 -41.751 0.000
z 0.000 0.000 -35.519
Traceless
 xyz
x 7.747 -0.999 0.000
y -0.999 -8.548 0.000
z 0.000 0.000 0.801
Polar
3z2-r21.601
x2-y210.864
xy-0.999
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.642 0.572 0.000
y 0.572 7.836 0.000
z 0.000 0.000 6.022


<r2> (average value of r2) Å2
<r2> 203.282
(<r2>)1/2 14.258