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

using model chemistry: mPW1PW91/daug-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 mPW1PW91/daug-cc-pVDZ
 hartrees
Energy at 0K-307.671977
Energy at 298.15K 
HF Energy-307.671977
Nuclear repulsion energy243.900557
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 mPW1PW91/daug-cc-pVDZ
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' 3203 3203 5.76 55.59 0.68 0.81
2 A' 3151 3151 21.77 67.94 0.69 0.81
3 A' 3082 3082 17.47 82.84 0.05 0.10
4 A' 3077 3077 1.25 200.37 0.00 0.01
5 A' 3064 3064 17.02 180.44 0.00 0.01
6 A' 1821 1821 278.10 7.61 0.23 0.37
7 A' 1499 1499 7.18 1.00 0.75 0.85
8 A' 1476 1476 2.57 6.82 0.75 0.86
9 A' 1449 1449 14.71 5.53 0.60 0.75
10 A' 1420 1420 10.57 1.43 0.75 0.86
11 A' 1389 1389 102.38 0.36 0.62 0.77
12 A' 1368 1368 11.37 0.86 0.30 0.46
13 A' 1285 1285 366.14 1.16 0.62 0.77
14 A' 1140 1140 9.61 7.97 0.10 0.19
15 A' 1096 1096 96.65 1.86 0.75 0.86
16 A' 1010 1010 9.05 1.09 0.16 0.27
17 A' 966 966 5.98 2.59 0.12 0.21
18 A' 869 869 7.07 6.19 0.21 0.35
19 A' 646 646 6.60 7.47 0.20 0.33
20 A' 429 429 0.97 0.28 0.64 0.78
21 A' 369 369 9.23 3.21 0.21 0.34
22 A' 194 194 5.81 0.38 0.53 0.69
23 A" 3158 3158 35.08 16.36 0.75 0.86
24 A" 3155 3155 4.16 51.70 0.75 0.86
25 A" 3128 3128 4.03 79.83 0.75 0.86
26 A" 1465 1465 6.96 5.05 0.75 0.86
27 A" 1457 1457 8.30 4.21 0.75 0.86
28 A" 1287 1287 1.16 3.68 0.75 0.86
29 A" 1170 1170 3.47 0.30 0.75 0.86
30 A" 1055 1055 5.92 0.06 0.75 0.86
31 A" 802 802 0.95 0.21 0.75 0.86
32 A" 610 610 4.44 0.34 0.75 0.86
33 A" 258 258 1.01 0.01 0.75 0.86
34 A" 156 156 4.57 0.03 0.75 0.86
35 A" 65 65 0.42 0.20 0.75 0.86
36 A" 36 36 0.36 0.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 25902.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25902.5 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 mPW1PW91/daug-cc-pVDZ
ABC
0.28287 0.06994 0.05790

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/daug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.308 0.032 0.000
C2 -0.909 -0.512 0.000
O3 0.000 0.480 0.000
O4 -0.613 -1.684 0.000
C5 1.377 0.064 0.000
C6 2.233 1.307 0.000
H7 -3.019 -0.795 0.000
H8 -2.463 0.663 0.883
H9 -2.463 0.663 -0.883
H10 1.556 -0.558 0.885
H11 1.556 -0.558 -0.885
H12 3.292 1.023 0.000
H13 2.041 1.918 -0.890
H14 2.041 1.918 0.890

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.50112.35092.41173.68534.71661.09101.09591.09594.00724.00725.68674.82274.8227
C21.50111.34541.20842.35763.63072.12902.13862.13862.61882.61884.47233.92373.9237
O32.35091.34542.24901.43872.38153.27722.62252.62252.06902.06903.33642.65022.6502
O42.41171.20842.24902.64894.12882.56463.11533.11532.59852.59854.75124.56124.5612
C53.68532.35761.43872.64891.50924.47943.98533.98531.09641.09642.14112.16032.1603
C64.71663.63072.38154.12881.50925.65734.82144.82142.17312.17311.09641.09591.0959
H71.09102.12903.27722.56464.47945.65731.79291.79294.66524.66526.56755.80975.8097
H81.09592.13862.62253.11533.98534.82141.79291.76614.19964.55655.83304.99994.6751
H91.09592.13862.62253.11533.98534.82141.79291.76614.55654.19965.83304.67514.9999
H104.00722.61882.06902.59851.09642.17314.66524.19964.55651.76942.50943.08462.5232
H114.00722.61882.06902.59851.09642.17314.66524.55654.19961.76942.50942.52323.0846
H125.68674.47233.33644.75122.14111.09646.56755.83305.83302.50942.50941.77701.7770
H134.82273.92372.65024.56122.16031.09595.80974.99994.67513.08462.52321.77701.7792
H144.82273.92372.65024.56122.16031.09595.80974.67514.99992.52323.08461.77701.7792

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 111.236 C1 C2 O4 125.422
C2 C1 H7 109.415 C2 C1 H8 109.884
C2 C1 H9 109.884 C2 O3 C5 115.691
O3 C2 O4 123.342 O3 C5 C6 107.749
O3 C5 H10 108.650 O3 C5 H11 108.650
C5 C6 H12 109.503 C5 C6 H13 111.056
C5 C6 H14 111.056 C6 C5 H10 112.055
C6 C5 H11 112.055 H7 C1 H8 110.135
H7 C1 H9 110.135 H8 C1 H9 107.364
H10 C5 H11 107.591 H12 C6 H13 108.302
H12 C6 H14 108.302 H13 C6 H14 108.537
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.775      
2 C 0.477      
3 O -0.608      
4 O -0.888      
5 C 1.857      
6 C 0.070      
7 H -0.249      
8 H -0.009      
9 H -0.009      
10 H -0.491      
11 H -0.491      
12 H -0.260      
13 H -0.086      
14 H -0.086      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.282 2.075 0.000 2.094
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.453 -1.089 0.000
y -1.089 -43.066 0.000
z 0.000 0.000 -35.668
Traceless
 xyz
x 8.914 -1.089 0.000
y -1.089 -10.006 0.000
z 0.000 0.000 1.092
Polar
3z2-r22.183
x2-y212.613
xy-1.089
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.312 0.582 0.000
y 0.582 8.884 0.000
z 0.000 0.000 6.978


<r2> (average value of r2) Å2
<r2> 200.828
(<r2>)1/2 14.171