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

using model chemistry: B2PLYP/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 B2PLYP/6-31G**
 hartrees
Energy at 0K-268.143058
Energy at 298.15K-268.150220
HF Energy-267.886072
Nuclear repulsion energy178.070580
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/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' 3787 3787 52.48      
2 A' 3182 3182 21.32      
3 A' 3101 3101 17.72      
4 A' 3095 3095 11.82      
5 A' 1841 1841 231.90      
6 A' 1539 1539 9.29      
7 A' 1499 1499 11.13      
8 A' 1456 1456 5.40      
9 A' 1438 1438 52.90      
10 A' 1328 1328 4.90      
11 A' 1188 1188 232.56      
12 A' 1105 1105 64.51      
13 A' 1027 1027 1.49      
14 A' 829 829 9.16      
15 A' 615 615 21.30      
16 A' 469 469 21.68      
17 A' 254 254 2.71      
18 A" 3188 3188 21.00      
19 A" 3132 3132 5.01      
20 A" 1533 1533 5.20      
21 A" 1304 1304 0.01      
22 A" 1129 1129 0.40      
23 A" 824 824 17.31      
24 A" 676 676 101.46      
25 A" 522 522 19.40      
26 A" 214 214 0.01      
27 A" 44 44 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 20159.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20159.3 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/6-31G**
ABC
0.33673 0.12737 0.09565

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.570 0.000
C2 -0.605 -0.813 0.000
C3 0.448 -1.914 0.000
O4 -0.960 1.531 0.000
O5 1.185 0.832 0.000
H6 -1.262 -0.884 0.871
H7 -1.262 -0.884 -0.871
H8 -0.028 -2.895 0.000
H9 1.088 -1.839 -0.879
H10 1.088 -1.839 0.879
H11 -0.485 2.377 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.50962.52401.35801.21392.11332.11333.46542.78562.78561.8712
C21.50961.52332.37072.43141.09371.09372.16072.16582.16583.1927
C32.52401.52333.72132.84332.17842.17841.09061.08981.08984.3914
O41.35802.37073.72132.25582.58482.58484.52324.04004.04000.9705
O51.21392.43142.84332.25583.11353.11353.91982.81372.81372.2752
H62.11331.09372.17842.58483.11351.74262.51593.08212.53703.4638
H72.11331.09372.17842.58483.11351.74262.51592.53703.08213.4638
H83.46542.16071.09064.52323.91982.51592.51591.77001.77005.2924
H92.78562.16581.08984.04002.81373.08212.53701.77001.75804.5852
H102.78562.16581.08984.04002.81372.53703.08211.77001.75804.5852
H111.87123.19274.39140.97052.27523.46383.46385.29244.58524.5852

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 112.649 C1 C2 H6 107.457
C1 C2 H7 107.457 C1 O4 H11 105.747
C2 C1 O4 111.414 C2 C1 O5 126.096
C2 C3 H8 110.410 C2 C3 H9 110.869
C2 C3 H10 110.869 C3 C2 H6 111.642
C3 C2 H7 111.642 O4 C1 O5 122.490
H6 C2 H7 105.616 H8 C3 H9 108.539
H8 C3 H10 108.539 H9 C3 H10 107.518
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.575      
2 C -0.273      
3 C -0.316      
4 O -0.501      
5 O -0.456      
6 H 0.142      
7 H 0.142      
8 H 0.106      
9 H 0.126      
10 H 0.126      
11 H 0.328      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.408 -0.224 0.000 1.426
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.518 -0.421 0.000
y -0.421 -25.168 0.000
z 0.000 0.000 -29.211
Traceless
 xyz
x -7.328 -0.421 0.000
y -0.421 6.696 0.000
z 0.000 0.000 0.632
Polar
3z2-r21.264
x2-y2-9.349
xy-0.421
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.843 -0.099 0.000
y -0.099 6.330 0.000
z 0.000 0.000 4.152


<r2> (average value of r2) Å2
<r2> 123.910
(<r2>)1/2 11.131