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 C5H12O (2-Pentanol)

using model chemistry: mPW1PW91/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/6-31G**
 hartrees
Energy at 0K-272.931063
Energy at 298.15K-272.944533
Nuclear repulsion energy255.061541
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 mPW1PW91/6-31G**
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 3886 3697 12.00      
2 A 3162 3009 25.58      
3 A 3151 2998 33.59      
4 A 3146 2994 55.19      
5 A 3140 2988 30.13      
6 A 3118 2967 31.30      
7 A 3091 2941 3.21      
8 A 3067 2919 46.67      
9 A 3064 2915 21.54      
10 A 3063 2914 28.12      
11 A 3054 2905 8.24      
12 A 2986 2841 56.59      
13 A 1526 1452 5.88      
14 A 1517 1444 1.56      
15 A 1516 1443 5.14      
16 A 1514 1440 7.42      
17 A 1509 1436 1.22      
18 A 1498 1426 0.38      
19 A 1446 1376 18.60      
20 A 1431 1361 3.49      
21 A 1428 1359 24.79      
22 A 1404 1336 6.72      
23 A 1390 1322 3.28      
24 A 1337 1272 0.87      
25 A 1320 1256 24.65      
26 A 1294 1231 5.70      
27 A 1255 1194 15.61      
28 A 1196 1138 17.02      
29 A 1169 1112 36.88      
30 A 1113 1059 49.96      
31 A 1110 1057 1.81      
32 A 1064 1012 2.38      
33 A 1015 965 4.67      
34 A 979 931 7.48      
35 A 928 883 19.10      
36 A 884 841 0.85      
37 A 850 809 0.33      
38 A 753 716 3.58      
39 A 493 469 8.52      
40 A 452 430 1.23      
41 A 415 395 9.14      
42 A 322 307 0.68      
43 A 307 292 118.97      
44 A 267 254 1.20      
45 A 249 237 0.60      
46 A 184 175 1.59      
47 A 116 110 0.01      
48 A 83 79 0.51      

Unscaled Zero Point Vibrational Energy (zpe) 36630.4 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 34853.8 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 mPW1PW91/6-31G**
ABC
0.23433 0.05787 0.04990

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.526 1.287 0.206
H2 -0.862 2.091 -0.121
H3 -2.532 1.532 -0.153
H4 -1.550 1.274 1.299
O5 -1.974 -1.091 0.083
H6 -2.855 -0.845 -0.212
C7 -1.078 -0.068 -0.326
H8 -1.042 -0.020 -1.428
C9 0.295 -0.493 0.176
H10 0.269 -0.518 1.273
C11 2.808 -0.149 0.143
H12 3.622 0.491 -0.207
H13 2.872 -0.201 1.234
H14 2.985 -1.156 -0.245
C15 1.449 0.381 -0.303
H16 1.425 0.448 -1.398
H17 1.324 1.405 0.067
H18 0.455 -1.526 -0.152

Atom - Atom Distances (Å)
  C1 H2 H3 H4 O5 H6 C7 H8 C9 H10 C11 H12 H13 H14 C15 H16 H17 H18
C11.09281.09521.09352.42292.54711.52292.14762.54712.76084.56625.22574.75585.15033.15213.46262.85613.4594
H21.09281.76121.77633.37703.55022.17962.48992.84723.16734.30764.76184.58635.03612.88143.09292.29903.8499
H31.09521.76121.77152.69212.39992.16852.50153.49303.75245.60576.24145.84196.13774.14724.28813.86424.2747
H41.09351.77631.77152.69242.91192.15923.06062.78992.55334.72705.44264.66135.37123.51514.09933.12893.7364
O52.42293.37702.69212.69240.96161.42002.07372.34812.60234.87385.82215.05914.97013.74634.01474.13562.4784
H62.54713.55022.39992.91190.96161.94282.33413.19363.47455.71656.61335.94175.84844.47684.62624.75453.3798
C71.52292.17962.16852.15921.42001.94281.10351.52302.13883.91504.73474.24914.20732.56742.77202.84492.1232
H82.14762.48992.50153.06062.07372.33411.10352.14103.04294.15934.84744.73624.34762.76252.51123.14012.4771
C92.54712.84723.49302.78992.34813.19361.52302.14101.09692.53633.49042.80052.80241.52522.15452.16161.0957
H102.76083.16733.75242.55332.60233.47452.13883.04291.09692.80333.80152.62243.17622.16463.06662.50311.7547
C114.56624.30765.60574.72704.87385.71653.91504.15932.53632.80331.09301.09411.09401.52452.15422.14972.7423
H125.22574.76186.24145.44265.82216.61334.73474.84743.49043.80151.09301.76601.76652.17722.49862.48813.7553
H134.75584.58635.84194.66135.05915.94174.24914.73622.80052.62241.09411.76601.76402.17343.07242.51753.0848
H145.15035.03616.13775.37124.97015.84844.20734.34762.80243.17621.09401.76651.76402.17342.51673.06852.5588
C153.15212.88144.14723.51513.74634.47682.56742.76251.52522.16461.52452.17722.17342.17341.09731.09592.1562
H163.46263.09294.28814.09934.01474.62622.77202.51122.15453.06662.15422.49863.07242.51671.09731.75282.5283
H172.85612.29903.86423.12894.13564.75452.84493.14012.16162.50312.14972.48812.51753.06851.09591.75283.0649
H183.45943.84994.27473.73642.47843.37982.12322.47711.09571.75472.74233.75533.08482.55882.15622.52833.0649

picture of 2-Pentanol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C7 O5 110.782 C1 C7 H8 108.666
C1 C7 C9 113.488 H2 C1 H3 107.213
H2 C1 H4 108.668 H2 C1 C7 111.821
H3 C1 H4 108.073 H3 C1 C7 110.791
H4 C1 C7 110.146 O5 C7 H8 109.887
O5 C7 C9 105.797 H6 O5 C7 107.768
C7 C9 H10 108.347 C7 C9 C15 114.758
C7 C9 H18 107.216 H8 C7 C9 108.144
C9 C15 C11 112.539 C9 C15 H16 109.394
C9 C15 H17 110.029 H10 C9 C15 110.208
H10 C9 H18 106.315 C11 C15 H16 109.420
C11 C15 H17 109.149 H12 C11 H13 107.695
H12 C11 H14 107.740 H12 C11 C15 111.499
H13 C11 H14 107.450 H13 C11 C15 111.134
H14 C11 C15 111.136 C15 C9 H18 109.624
H16 C15 H17 106.104
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.406      
2 H 0.132      
3 H 0.118      
4 H 0.142      
5 O -0.560      
6 H 0.314      
7 C 0.128      
8 H 0.101      
9 C -0.228      
10 H 0.128      
11 C -0.395      
12 H 0.128      
13 H 0.132      
14 H 0.132      
15 C -0.252      
16 H 0.124      
17 H 0.126      
18 H 0.137      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.402 1.273 -0.718 1.515
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.151 -1.701 1.794
y -1.701 -41.668 0.762
z 1.794 0.762 -39.208
Traceless
 xyz
x 5.286 -1.701 1.794
y -1.701 -4.488 0.762
z 1.794 0.762 -0.798
Polar
3z2-r2-1.596
x2-y26.517
xy-1.701
xz1.794
yz0.762


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


<r2> (average value of r2) Å2
<r2> 238.077
(<r2>)1/2 15.430