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All results from a given calculation for CH3COOCH3 (methyl acetate)

using model chemistry: B3LYP/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-268.500285
Energy at 298.15K-268.506992
HF Energy-268.500285
Nuclear repulsion energy181.471480
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/aug-cc-pVTZ
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' 3156 3054 6.12      
2 A' 3151 3048 13.03      
3 A' 3052 2953 7.93      
4 A' 3051 2951 23.66      
5 A' 1791 1733 270.44      
6 A' 1499 1450 9.45      
7 A' 1474 1426 20.46      
8 A' 1471 1423 10.30      
9 A' 1399 1353 38.67      
10 A' 1262 1221 335.61      
11 A' 1209 1170 0.96      
12 A' 1070 1035 82.26      
13 A' 984 952 1.45      
14 A' 853 826 21.43      
15 A' 642 621 5.05      
16 A' 424 410 5.69      
17 A' 282 272 12.54      
18 A" 3119 3018 18.67      
19 A" 3109 3008 4.67      
20 A" 1486 1437 9.83      
21 A" 1478 1430 6.52      
22 A" 1173 1135 1.23      
23 A" 1069 1034 6.17      
24 A" 611 591 5.53      
25 A" 178 173 6.54      
26 A" 130 126 0.54      
27 A" 40 39 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 19580.6 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 18944.2 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/aug-cc-pVTZ
ABC
0.34198 0.13830 0.10222

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.135 1.471 0.000
C2 0.000 0.500 0.000
O3 -1.174 0.782 0.000
O4 0.467 -0.774 0.000
C5 -0.521 -1.802 0.000
H6 0.747 2.486 0.000
H7 1.760 1.320 0.880
H8 1.760 1.320 -0.880
H9 0.014 -2.748 0.000
H10 -1.153 -1.729 0.884
H11 -1.153 -1.729 -0.884

Atom - Atom Distances (Å)
  C1 C2 O3 O4 C5 H6 H7 H8 H9 H10 H11
C11.49342.40912.34203.66801.08631.09021.09024.36564.03214.0321
C21.49341.20731.35692.36032.12152.13172.13173.24852.66122.6612
O32.40911.20732.26142.66532.56733.11003.11003.72522.66262.6626
O42.34201.35692.26141.42613.27162.61332.61332.02572.07862.0786
C53.66802.36032.66531.42614.47133.96533.96531.08751.08951.0895
H61.08632.12152.56733.27164.47131.77791.77795.28524.70734.7073
H71.09022.13173.11002.61333.96531.77791.75974.51344.21714.5713
H81.09022.13173.11002.61333.96531.77791.75974.51344.57134.2171
H94.36563.24853.72522.02571.08755.28524.51344.51341.78451.7845
H104.03212.66122.66262.07861.08954.70734.21714.57131.78451.7686
H114.03212.66122.66262.07861.08954.70734.57134.21711.78451.7686

picture of methyl acetate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 O3 125.930 C1 C2 O4 110.420
C2 C1 H6 109.641 C2 C1 H7 110.226
C2 C1 H8 110.226 C2 O4 C5 115.997
O3 C2 O4 123.650 O4 C5 H9 106.625
O4 C5 H10 110.729 O4 C5 H11 110.729
H6 C1 H7 109.548 H6 C1 H8 109.548
H7 C1 H8 107.622 H9 C5 H10 110.116
H9 C5 H11 110.116 H10 C5 H11 108.525
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability