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

using model chemistry: B3LYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/TZVP
 hartrees
Energy at 0K-307.824111
Energy at 298.15K 
HF Energy-307.824111
Nuclear repulsion energy243.176272
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 B3LYP/TZVP
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' 3162 3052 6.93 63.18 0.66 0.80
2 A' 3109 3001 25.27 73.08 0.69 0.82
3 A' 3055 2949 5.94 93.03 0.00 0.00
4 A' 3053 2948 12.07 152.20 0.06 0.10
5 A' 3042 2937 16.38 157.72 0.00 0.01
6 A' 1793 1731 272.73 4.44 0.30 0.46
7 A' 1524 1471 6.47 1.62 0.75 0.86
8 A' 1502 1450 3.36 13.82 0.74 0.85
9 A' 1476 1425 14.58 8.60 0.68 0.81
10 A' 1433 1383 5.84 2.79 0.75 0.86
11 A' 1410 1361 34.21 0.34 0.73 0.85
12 A' 1397 1349 18.67 2.84 0.71 0.83
13 A' 1261 1218 422.62 0.32 0.27 0.43
14 A' 1139 1099 11.19 7.38 0.13 0.23
15 A' 1065 1028 133.39 2.61 0.74 0.85
16 A' 1014 979 4.36 1.81 0.24 0.39
17 A' 945 912 9.29 1.99 0.16 0.28
18 A' 859 830 11.07 7.76 0.30 0.47
19 A' 639 617 4.80 8.47 0.31 0.47
20 A' 433 418 0.90 0.43 0.65 0.79
21 A' 369 356 8.51 3.34 0.29 0.45
22 A' 193 186 5.53 0.33 0.61 0.76
23 A" 3119 3011 39.63 15.53 0.75 0.86
24 A" 3114 3006 5.08 54.87 0.75 0.86
25 A" 3088 2982 4.06 90.75 0.75 0.86
26 A" 1490 1438 7.13 10.47 0.75 0.86
27 A" 1481 1430 9.65 8.74 0.75 0.86
28 A" 1301 1256 0.90 9.40 0.75 0.86
29 A" 1181 1141 3.93 0.87 0.75 0.86
30 A" 1070 1033 5.80 0.23 0.75 0.86
31 A" 817 789 0.54 0.17 0.75 0.86
32 A" 607 586 5.65 1.41 0.75 0.86
33 A" 264 255 1.12 0.07 0.75 0.86
34 A" 152 147 5.12 0.02 0.75 0.86
35 A" 65 62 0.36 0.37 0.75 0.86
36 A" 36 34 0.53 0.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25828.8 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 24935.2 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 B3LYP/TZVP
ABC
0.28120 0.06926 0.05735

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.313 0.017 0.000
C2 -0.910 -0.530 0.000
O3 0.000 0.470 0.000
O4 -0.613 -1.699 0.000
C5 1.394 0.078 0.000
C6 2.225 1.342 0.000
H7 -3.023 -0.806 0.000
H8 -2.470 0.644 0.879
H9 -2.470 0.644 -0.879
H10 1.586 -0.537 0.881
H11 1.586 -0.537 -0.881
H12 3.286 1.085 0.000
H13 2.019 1.946 -0.885
H14 2.019 1.946 0.885

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50622.35702.41573.70764.72751.08661.09121.09124.03534.03535.69994.82414.8241
C21.50621.35171.20642.38263.65122.13062.14122.14122.64642.64644.49573.93613.9361
O32.35701.35172.25421.44802.38983.28072.62752.62752.07472.07473.34292.65322.6532
O42.41571.20642.25422.68114.16022.56943.11613.11612.63872.63874.79124.58294.5829
C53.70762.38261.44802.68111.51304.50404.00284.00281.09151.09152.14322.15982.1598
C64.72753.65122.38984.16021.51305.67014.82714.82712.17192.17191.09181.09111.0911
H71.08662.13063.28072.56944.50405.67011.78351.78354.69934.69936.58565.81165.8116
H81.09122.14122.62753.11614.00284.82711.78351.75894.22384.57605.83914.99594.6739
H91.09122.14122.62753.11614.00284.82711.78351.75894.57604.22385.83914.67394.9959
H104.03532.64642.07472.63871.09152.17194.69934.22384.57601.76232.50953.07802.5208
H114.03532.64642.07472.63871.09152.17194.69934.57604.22381.76232.50952.52083.0780
H125.69994.49573.34294.79122.14321.09186.58565.83915.83912.50952.50951.76931.7693
H134.82413.93612.65324.58292.15981.09115.81164.99594.67393.07802.52081.76931.7702
H144.82413.93612.65324.58292.15981.09115.81164.67394.99592.52083.07801.76931.7702

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 111.007 C1 C2 O4 125.522
C2 C1 H7 109.457 C2 C1 H8 110.021
C2 C1 H9 110.021 C2 O3 C5 116.603
O3 C2 O4 123.471 O3 C5 C6 107.607
O3 C5 H10 108.753 O3 C5 H11 108.753
C5 C6 H12 109.666 C5 C6 H13 111.036
C5 C6 H14 111.036 C6 C5 H10 111.991
C6 C5 H11 111.991 H7 C1 H8 109.957
H7 C1 H9 109.957 H8 C1 H9 107.405
H10 C5 H11 107.665 H12 C6 H13 108.294
H12 C6 H14 108.294 H13 C6 H14 108.428
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.386      
2 C 0.280      
3 O -0.212      
4 O -0.328      
5 C -0.074      
6 C -0.317      
7 H 0.149      
8 H 0.139      
9 H 0.139      
10 H 0.128      
11 H 0.128      
12 H 0.115      
13 H 0.121      
14 H 0.121      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.338 2.032 0.000 2.060
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.741 -1.029 0.000
y -1.029 -43.667 0.000
z 0.000 0.000 -35.928
Traceless
 xyz
x 9.057 -1.029 0.000
y -1.029 -10.333 0.000
z 0.000 0.000 1.276
Polar
3z2-r22.553
x2-y212.927
xy-1.029
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.489 0.519 0.000
y 0.519 8.369 0.000
z 0.000 0.000 6.526


<r2> (average value of r2) Å2
<r2> 202.598
(<r2>)1/2 14.234