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

using model chemistry: CID/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CID/6-31G
 hartrees
Energy at 0K-267.185032
Energy at 298.15K-267.192313
HF Energy-266.719186
Nuclear repulsion energy176.614685
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 CID/6-31G
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' 3785 3539 50.26      
2 A' 3200 2993 23.98      
3 A' 3129 2926 2.61      
4 A' 3123 2921 26.31      
5 A' 1832 1713 234.84      
6 A' 1595 1492 11.25      
7 A' 1573 1471 17.03      
8 A' 1527 1428 6.90      
9 A' 1491 1394 52.69      
10 A' 1382 1293 10.90      
11 A' 1205 1127 213.24      
12 A' 1140 1066 119.64      
13 A' 1067 998 13.76      
14 A' 849 794 3.48      
15 A' 633 592 24.77      
16 A' 479 448 29.37      
17 A' 263 246 2.53      
18 A" 3210 3002 25.55      
19 A" 3162 2957 3.25      
20 A" 1591 1488 6.82      
21 A" 1354 1266 0.05      
22 A" 1196 1118 0.66      
23 A" 865 809 15.95      
24 A" 659 616 176.87      
25 A" 543 508 33.78      
26 A" 210 197 0.01      
27 A" 61 58 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 20561.9 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 19229.5 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 CID/6-31G
ABC
0.33168 0.12520 0.09405

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.564 0.000
C2 -0.602 -0.818 0.000
C3 0.457 -1.929 0.000
O4 -0.972 1.542 0.000
O5 1.196 0.842 0.000
H6 -1.257 -0.893 0.875
H7 -1.257 -0.893 -0.875
H8 -0.027 -2.909 0.000
H9 1.098 -1.858 -0.882
H10 1.098 -1.858 0.882
H11 -0.582 2.431 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50772.53431.37881.22832.11372.11373.47302.80172.80171.9557
C21.50771.53442.38912.44771.09551.09552.16812.17902.17903.2497
C32.53431.53443.75332.86772.18562.18561.09331.09241.09244.4820
O41.37882.38913.75332.27852.60272.60274.55004.07704.07700.9713
O51.22832.44772.86772.27853.12963.12963.94552.84222.84222.3847
H62.11371.09552.18562.60273.12961.74962.51853.09262.54513.5029
H72.11371.09552.18562.60273.12961.74962.51852.54513.09263.5029
H83.47302.16811.09334.55003.94552.51852.51851.77421.77425.3689
H92.80172.17901.09244.07702.84223.09262.54511.77421.76404.6901
H102.80172.17901.09244.07702.84222.54513.09261.77421.76404.6901
H111.95573.24974.48200.97132.38473.50293.50295.36894.69014.6901

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 112.826 C1 C2 H6 107.518
C1 C2 H7 107.518 C1 O4 H11 111.477
C2 C1 O4 111.647 C2 C1 O5 126.614
C2 C3 H8 110.059 C2 C3 H9 110.978
C2 C3 H10 110.978 C3 C2 H6 111.326
C3 C2 H7 111.326 O4 C1 O5 121.739
H6 C2 H7 105.984 H8 C3 H9 108.530
H8 C3 H10 108.530 H9 C3 H10 107.677
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability