return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C6H12O2 (Hexanoic acid)

using model chemistry: BLYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A1
Energy calculated at BLYP/6-31G*
 hartrees
Energy at 0K-386.162243
Energy at 298.15K-386.175669
HF Energy-386.162243
Nuclear repulsion energy365.324788
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 BLYP/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' 3519 3490 18.14      
2 A' 3028 3004 45.84      
3 A' 2972 2948 48.09      
4 A' 2963 2939 37.70      
5 A' 2959 2935 5.34      
6 A' 2945 2921 32.36      
7 A' 2928 2904 13.32      
8 A' 1763 1749 209.83      
9 A' 1506 1494 2.97      
10 A' 1495 1483 1.48      
11 A' 1481 1469 0.86      
12 A' 1477 1465 0.54      
13 A' 1453 1441 11.72      
14 A' 1401 1390 0.37      
15 A' 1383 1372 14.96      
16 A' 1374 1363 7.57      
17 A' 1335 1324 34.19      
18 A' 1288 1277 0.14      
19 A' 1243 1233 3.67      
20 A' 1121 1112 123.89      
21 A' 1084 1075 144.87      
22 A' 1034 1026 1.37      
23 A' 1024 1016 16.74      
24 A' 984 976 18.02      
25 A' 891 884 2.69      
26 A' 834 828 2.47      
27 A' 606 601 22.00      
28 A' 489 485 22.14      
29 A' 391 388 0.93      
30 A' 294 291 1.64      
31 A' 219 218 1.90      
32 A' 95 95 0.83      
33 A" 3023 2998 83.84      
34 A" 3011 2987 40.24      
35 A" 2983 2959 0.86      
36 A" 2975 2951 22.60      
37 A" 2951 2927 4.48      
38 A" 1492 1480 5.13      
39 A" 1313 1302 0.44      
40 A" 1308 1298 0.16      
41 A" 1270 1260 0.02      
42 A" 1207 1197 0.01      
43 A" 1115 1106 0.74      
44 A" 959 951 0.21      
45 A" 839 833 4.85      
46 A" 752 746 2.44      
47 A" 723 717 9.89      
48 A" 666 660 86.00      
49 A" 506 502 16.05      
50 A" 240 239 0.01      
51 A" 132 131 0.01      
52 A" 109 108 0.19      
53 A" 55 54 0.09      
54 A" 23 22 0.14      

Unscaled Zero Point Vibrational Energy (zpe) 37613.6 cm-1
Scaled (by 0.9919) Zero Point Vibrational Energy (zpe) 37308.9 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 BLYP/6-31G*
ABC
0.24100 0.02112 0.01977

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 3.666 1.896 0.000
C2 2.121 1.854 0.000
C3 1.546 0.418 0.000
C4 0.000 0.375 0.000
C5 -0.560 -1.062 0.000
C6 -2.089 -1.121 0.000
O7 -2.527 -2.416 0.000
O8 -2.841 -0.160 0.000
H9 4.041 2.932 0.000
H10 4.079 1.391 0.890
H11 4.079 1.391 -0.890
H12 1.739 2.398 -0.883
H13 1.739 2.398 0.883
H14 1.929 -0.126 0.884
H15 1.929 -0.126 -0.884
H16 -0.390 0.913 -0.880
H17 -0.390 0.913 0.880
H18 -0.201 -1.629 0.878
H19 -0.201 -1.629 -0.878
H20 -3.508 -2.381 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 O7 O8 H9 H10 H11 H12 H13 H14 H15 H16 H17 H18 H19 H20
C11.54462.58383.96865.15786.49757.54626.82371.10251.10331.10332.17772.17772.80782.80784.26444.26445.30485.30488.3520
C21.54461.54692.58633.96155.15566.31245.35572.20172.19942.19941.10531.10532.17712.17712.82242.82244.27704.27707.0449
C32.58381.54691.54652.57403.94754.96234.42513.54222.85552.85552.17652.17651.10661.10662.18332.18332.83042.83045.7776
C43.96862.58631.54651.54202.56933.76522.89114.78254.29674.29672.81052.81052.18052.18051.10331.10332.19642.19644.4612
C55.15783.96152.57401.54201.53052.38842.45346.09305.32235.32234.24724.24722.80242.80242.16952.16951.10501.10503.2299
C66.49755.15563.94752.56931.53051.36761.22057.34916.71916.71915.27455.27454.23324.23322.79322.79322.14362.14361.8979
O77.54626.31244.96233.76522.38841.36762.27858.47067.67647.67646.49326.49325.08795.08794.05364.05362.60842.60840.9815
O86.82375.35574.42512.89112.45341.22052.27857.54507.14737.14735.32015.32014.85204.85202.81732.81733.14663.14662.3196
H91.10252.20173.54224.78256.09307.34918.47067.54501.78011.78012.52262.52263.82043.82044.94804.94806.29026.29029.2318
H101.10332.19942.85554.29675.32236.71917.67647.14731.78011.77953.10332.54712.63103.17294.83004.49395.23775.52808.5196
H111.10332.19942.85554.29675.32236.71917.67647.14731.78011.77952.54713.10333.17292.63104.49394.83005.52805.23778.5196
H122.17771.10532.17652.81054.24725.27456.49325.32012.52263.10332.54711.76613.08712.53162.59553.13804.80414.46977.1525
H132.17771.10532.17652.81054.24725.27456.49325.32012.52262.54713.10331.76612.53163.08713.13802.59554.46974.80417.1525
H142.80782.17711.10662.18052.80244.23325.08794.85203.82042.63103.17293.08712.53161.76733.09382.54162.60673.14625.9526
H152.80782.17711.10662.18052.80244.23325.08794.85203.82043.17292.63102.53163.08711.76732.54163.09383.14622.60675.9526
H164.26442.82242.18331.10332.16952.79324.05362.81734.94804.83004.49392.59553.13803.09382.54161.76093.09682.54904.6212
H174.26442.82242.18331.10332.16952.79324.05362.81734.94804.49394.83003.13802.59552.54163.09381.76092.54903.09684.6212
H185.30484.27702.83042.19641.10502.14362.60843.14666.29025.23775.52804.80414.46972.60673.14623.09682.54901.75623.5037
H195.30484.27702.83042.19641.10502.14362.60843.14666.29025.52805.23774.46974.80413.14622.60672.54903.09681.75623.5037
H208.35207.04495.77764.46123.22991.89790.98152.31969.23188.51968.51967.15257.15255.95265.95264.62124.62123.50373.5037

picture of Hexanoic acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.392 C1 C2 H12 109.407
C1 C2 H13 109.407 C2 C1 H9 111.466
C2 C1 H10 111.229 C2 C1 H11 111.229
C2 C3 C4 113.456 C2 C3 H14 109.135
C2 C3 H15 109.135 C3 C2 H12 109.159
C3 C2 H13 109.159 C3 C4 C5 112.905
C3 C4 H16 109.834 C3 C4 H17 109.834
C4 C3 H14 109.430 C4 C3 H15 109.430
C4 C5 C6 113.491 C4 C5 H18 111.082
C4 C5 H19 111.082 C5 C4 H16 109.071
C5 C4 H17 109.071 C5 C6 O7 110.879
C5 C6 O8 125.841 C6 C5 H18 107.762
C6 C5 H19 107.762 C6 O7 H20 106.637
O7 C6 O8 123.280 H9 C1 H10 107.612
H9 C1 H11 107.612 H10 C1 H11 107.497
H12 C2 H13 106.053 H14 C3 H15 105.985
H16 C4 H17 105.882 H18 C5 H19 105.251
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.403      
2 C -0.212      
3 C -0.217      
4 C -0.213      
5 C -0.314      
6 C 0.528      
7 O -0.530      
8 O -0.434      
9 H 0.128      
10 H 0.128      
11 H 0.128      
12 H 0.117      
13 H 0.117      
14 H 0.111      
15 H 0.111      
16 H 0.131      
17 H 0.131      
18 H 0.155      
19 H 0.155      
20 H 0.382      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.873 -0.975 0.000 1.308
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -50.240 5.081 0.000
y 5.081 -49.986 0.000
z 0.000 0.000 -48.813
Traceless
 xyz
x -0.841 5.081 0.000
y 5.081 -0.460 0.000
z 0.000 0.000 1.301
Polar
3z2-r22.601
x2-y2-0.254
xy5.081
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.646 1.570 0.000
y 1.570 11.093 0.000
z 0.000 0.000 8.302


<r2> (average value of r2) Å2
<r2> 521.923
(<r2>)1/2 22.846