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

using model chemistry: B2PLYP=FULL/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 B2PLYP=FULL/cc-pVDZ
 hartrees
Energy at 0K-268.157996
Energy at 298.15K-268.165188
HF Energy-267.895288
Nuclear repulsion energy177.918931
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 B2PLYP=FULL/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' 3738 3582 58.13      
2 A' 3161 3030 19.85      
3 A' 3078 2951 9.51      
4 A' 3074 2947 22.16      
5 A' 1835 1759 241.16      
6 A' 1493 1431 13.53      
7 A' 1453 1393 12.07      
8 A' 1429 1370 33.16      
9 A' 1411 1352 25.36      
10 A' 1315 1260 0.77      
11 A' 1184 1135 236.23      
12 A' 1098 1053 51.61      
13 A' 1021 978 2.43      
14 A' 828 794 9.07      
15 A' 614 589 21.30      
16 A' 469 449 19.68      
17 A' 253 243 2.61      
18 A" 3167 3036 19.27      
19 A" 3113 2984 4.91      
20 A" 1484 1423 6.16      
21 A" 1281 1228 0.03      
22 A" 1110 1064 0.25      
23 A" 815 782 17.14      
24 A" 671 644 84.60      
25 A" 527 505 21.05      
26 A" 220 211 0.00      
27 A" 52 50 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 19947.4 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 19119.6 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 B2PLYP=FULL/cc-pVDZ
ABC
0.33667 0.12722 0.09561

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.571 0.000
C2 -0.606 -0.813 0.000
C3 0.448 -1.914 0.000
O4 -0.958 1.532 0.000
O5 1.184 0.831 0.000
H6 -1.270 -0.882 0.877
H7 -1.270 -0.882 -0.877
H8 -0.029 -2.905 0.000
H9 1.094 -1.838 -0.886
H10 1.094 -1.838 0.886
H11 -0.476 2.377 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.51112.52581.35711.21172.12002.12003.47662.79042.79041.8675
C21.51111.52412.37162.42971.10241.10242.17012.17352.17353.1930
C32.52581.52413.72242.84222.18752.18751.09951.09901.09904.3900
O41.35712.37163.72242.25382.58752.58754.53354.04414.04410.9735
O51.21172.42972.84222.25383.11813.11813.92792.81342.81342.2680
H62.12001.10242.18752.58753.11811.75432.53013.09982.54983.4676
H72.12001.10242.18752.58753.11811.75432.53012.54983.09983.4676
H83.47662.17011.09954.53353.92792.53012.53011.78461.78465.3013
H92.79042.17351.09904.04412.81343.09982.54981.78461.77124.5844
H102.79042.17351.09904.04412.81342.54983.09981.78461.77124.5844
H111.86753.19304.39000.97352.26803.46763.46765.30134.58444.5844

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 112.647 C1 C2 H6 107.391
C1 C2 H7 107.391 C1 O4 H11 105.325
C2 C1 O4 111.443 C2 C1 O5 125.996
C2 C3 H8 110.566 C2 C3 H9 110.866
C2 C3 H10 110.866 C3 C2 H6 111.784
C3 C2 H7 111.784 O4 C1 O5 122.561
H6 C2 H7 105.442 H8 C3 H9 108.530
H8 C3 H10 108.530 H9 C3 H10 107.377
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability