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

using model chemistry: B97D3/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/3-21G
 hartrees
Energy at 0K-305.835399
Energy at 298.15K 
HF Energy-305.835399
Nuclear repulsion energy239.293812
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 B97D3/3-21G
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' 3135 3081 9.90 69.45 0.66 0.80
2 A' 3084 3032 25.89 72.90 0.72 0.84
3 A' 3023 2972 7.98 39.19 0.01 0.01
4 A' 3022 2971 8.76 164.09 0.05 0.09
5 A' 3013 2961 16.97 99.25 0.03 0.06
6 A' 1712 1683 128.41 1.34 0.42 0.59
7 A' 1547 1521 6.50 4.04 0.72 0.84
8 A' 1534 1508 4.63 27.65 0.75 0.86
9 A' 1502 1477 19.40 19.62 0.74 0.85
10 A' 1433 1408 9.15 6.84 0.62 0.76
11 A' 1406 1382 28.04 7.58 0.65 0.78
12 A' 1377 1353 3.75 5.03 0.75 0.86
13 A' 1191 1171 312.09 1.02 0.27 0.42
14 A' 1120 1101 9.33 5.58 0.18 0.31
15 A' 1012 994 174.60 1.81 0.48 0.65
16 A' 995 978 0.58 2.38 0.60 0.75
17 A' 894 879 8.07 1.27 0.53 0.69
18 A' 800 786 7.63 15.13 0.27 0.42
19 A' 605 595 3.15 10.57 0.33 0.50
20 A' 402 395 0.38 0.48 0.54 0.70
21 A' 349 343 11.21 3.43 0.36 0.53
22 A' 183 180 4.72 0.32 0.66 0.80
23 A" 3099 3047 39.84 16.59 0.75 0.86
24 A" 3085 3032 6.24 57.72 0.75 0.86
25 A" 3062 3010 8.14 87.17 0.75 0.86
26 A" 1526 1500 6.82 24.71 0.75 0.86
27 A" 1515 1490 10.19 21.63 0.75 0.86
28 A" 1285 1263 0.17 12.45 0.75 0.86
29 A" 1157 1137 4.08 5.57 0.75 0.86
30 A" 1072 1054 8.88 0.41 0.75 0.86
31 A" 828 814 2.31 0.08 0.75 0.86
32 A" 580 570 2.73 1.38 0.75 0.86
33 A" 256 252 1.51 0.01 0.75 0.86
34 A" 150 147 5.32 0.01 0.75 0.86
35 A" 59 58 1.21 0.13 0.75 0.86
36 A" 32 31 0.34 0.31 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25521.2 cm-1
Scaled (by 0.983) Zero Point Vibrational Energy (zpe) 25087.3 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 B97D3/3-21G
ABC
0.26574 0.06813 0.05595

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.335 0.082 0.000
C2 -0.943 -0.530 0.000
O3 0.000 0.500 0.000
O4 -0.639 -1.726 0.000
C5 1.425 0.035 0.000
C6 2.268 1.310 0.000
H7 -3.082 -0.718 0.000
H8 -2.456 0.719 0.888
H9 -2.456 0.719 -0.888
H10 1.598 -0.584 0.891
H11 1.598 -0.584 -0.891
H12 3.337 1.053 0.000
H13 2.042 1.909 -0.892
H14 2.042 1.909 0.892

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.52062.37212.47863.76024.76361.09411.09891.09894.08714.08715.75464.82644.8264
C21.52061.39601.23412.43393.70002.14732.15302.15302.69282.69284.56313.95633.9563
O32.37211.39602.31561.49902.40803.31362.62062.62062.12652.12653.38262.63662.6366
O42.47861.23412.31562.71284.20292.64243.17223.17222.66482.66484.85104.60394.6039
C53.76022.43391.49902.71281.52864.56904.03944.03941.09831.09832.16652.16562.1656
C64.76363.70002.40804.20291.52865.72084.84264.84262.19752.19751.09981.09811.0981
H71.09412.14733.31362.64244.56905.72081.80051.80054.76554.76556.65865.82665.8266
H81.09892.15302.62063.17224.03944.84261.80051.77524.25804.61445.87024.98194.6530
H91.09892.15302.62063.17224.03944.84261.80051.77524.61444.25805.87024.65304.9819
H104.08712.69282.12652.66481.09832.19754.76554.25804.61441.78152.54923.09702.5321
H114.08712.69282.12652.66481.09832.19754.76554.61444.25801.78152.54922.53213.0970
H125.75464.56313.38264.85102.16651.09986.65865.87025.87022.54922.54921.79031.7903
H134.82643.95632.63664.60392.16561.09815.82664.98194.65303.09702.53211.79031.7848
H144.82643.95632.63664.60392.16561.09815.82664.65304.98192.53213.09701.79031.7848

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 108.767 C1 C2 O4 127.953
C2 C1 H7 109.330 C2 C1 H8 109.496
C2 C1 H9 109.496 C2 O3 C5 114.394
O3 C2 O4 123.280 O3 C5 C6 105.373
O3 C5 H10 108.942 O3 C5 H11 108.942
C5 C6 H12 109.957 C5 C6 H13 109.986
C5 C6 H14 109.986 C6 C5 H10 112.529
C6 C5 H11 112.529 H7 C1 H8 110.377
H7 C1 H9 110.377 H8 C1 H9 107.740
H10 C5 H11 108.400 H12 C6 H13 109.084
H12 C6 H14 109.084 H13 C6 H14 108.715
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.650      
2 C 0.611      
3 O -0.482      
4 O -0.477      
5 C -0.177      
6 C -0.602      
7 H 0.230      
8 H 0.237      
9 H 0.237      
10 H 0.221      
11 H 0.221      
12 H 0.201      
13 H 0.215      
14 H 0.215      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.389 1.684 0.000 1.729
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.994 -1.156 0.000
y -1.156 -41.918 0.000
z 0.000 0.000 -35.287
Traceless
 xyz
x 8.609 -1.156 0.000
y -1.156 -9.278 0.000
z 0.000 0.000 0.669
Polar
3z2-r21.338
x2-y211.924
xy-1.156
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.649 0.566 0.000
y 0.566 6.972 0.000
z 0.000 0.000 5.159


<r2> (average value of r2) Å2
<r2> 206.043
(<r2>)1/2 14.354