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All results from a given calculation for CH3CH2COOH (Propanoic Acid)

using model chemistry: CCSD/aug-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 CCSD/aug-cc-pVDZ
 hartrees
Energy at 0K-267.748236
Energy at 298.15K-267.755412
HF Energy-266.887248
Nuclear repulsion energy177.255453
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 CCSD/aug-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' 3788 3649 62.69      
2 A' 3134 3019 22.78      
3 A' 3061 2949 6.30      
4 A' 3055 2943 24.93      
5 A' 1829 1762 276.79      
6 A' 1494 1440 11.41      
7 A' 1463 1409 9.10      
8 A' 1431 1379 32.33      
9 A' 1409 1358 27.62      
10 A' 1321 1273 0.28      
11 A' 1184 1140 249.31      
12 A' 1098 1058 57.64      
13 A' 1019 981 1.17      
14 A' 827 797 4.92      
15 A' 612 590 20.87      
16 A' 465 448 19.53      
17 A' 250 241 2.57      
18 A" 3141 3026 24.46      
19 A" 3099 2986 3.37      
20 A" 1487 1433 5.55      
21 A" 1282 1235 0.02      
22 A" 1112 1071 0.36      
23 A" 808 778 10.60      
24 A" 645 622 89.39      
25 A" 524 505 21.53      
26 A" 219 211 0.01      
27 A" 53 51 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19904.7 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 19176.2 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 CCSD/aug-cc-pVDZ
ABC
0.33481 0.12596 0.09479

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.573 0.000
C2 -0.605 -0.818 0.000
C3 0.456 -1.924 0.000
O4 -0.965 1.537 0.000
O5 1.185 0.839 0.000
H6 -1.266 -0.887 0.882
H7 -1.266 -0.887 -0.882
H8 -0.029 -2.914 0.000
H9 1.101 -1.848 -0.890
H10 1.101 -1.848 0.890
H11 -0.501 2.388 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.51652.53781.36431.21402.12412.12413.48692.80472.80471.8833
C21.51651.53222.38212.43821.10441.10442.17362.18252.18253.2078
C32.53781.53223.74112.85662.19442.19441.10261.10191.10194.4169
O41.36432.38213.74112.26072.59702.59704.54814.06474.06470.9700
O51.21402.43822.85662.26073.12403.12403.94382.83162.83162.2898
H62.12411.10442.19442.59703.12401.76432.53253.10882.55413.4774
H72.12411.10442.19442.59703.12401.76432.53252.55413.10883.4774
H83.48692.17361.10264.54813.94382.53252.53251.79031.79035.3231
H92.80472.18251.10194.06472.83163.10882.55411.79031.78034.6160
H102.80472.18251.10194.06472.83162.55413.10881.79031.78034.6160
H111.88333.20784.41690.97002.28983.47743.47745.32314.61604.6160

picture of Propanoic Acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.699 C1 C2 H6 107.236
C1 C2 H7 107.236 C1 O4 H11 106.338
C2 C1 O4 111.454 C2 C1 O5 126.135
C2 C3 H8 110.098 C2 C3 H9 110.842
C2 C3 H10 110.842 C3 C2 H6 111.638
C3 C2 H7 111.638 O4 C1 O5 122.411
H6 C2 H7 106.022 H8 C3 H9 108.601
H8 C3 H10 108.601 H9 C3 H10 107.778
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability