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-Butanol, 3-methyl-)

using model chemistry: M06-2X/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 M06-2X/6-31G*
 hartrees
Energy at 0K-272.839191
Energy at 298.15K-272.852729
HF Energy-272.839191
Nuclear repulsion energy264.944964
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 M06-2X/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 3834 3631 18.98      
2 A 3181 3012 12.47      
3 A 3175 3007 18.11      
4 A 3157 2990 27.48      
5 A 3146 2979 50.99      
6 A 3143 2977 31.51      
7 A 3139 2972 6.15      
8 A 3075 2912 13.08      
9 A 3072 2910 48.06      
10 A 3068 2905 16.82      
11 A 3063 2900 6.14      
12 A 3008 2849 46.20      
13 A 1551 1469 5.69      
14 A 1537 1456 3.10      
15 A 1530 1449 13.23      
16 A 1526 1445 4.22      
17 A 1520 1439 3.49      
18 A 1517 1437 1.59      
19 A 1457 1380 10.83      
20 A 1445 1368 5.67      
21 A 1438 1362 10.40      
22 A 1429 1353 5.44      
23 A 1395 1322 9.59      
24 A 1363 1290 0.56      
25 A 1352 1281 20.64      
26 A 1287 1219 31.38      
27 A 1211 1147 9.45      
28 A 1203 1139 22.84      
29 A 1180 1118 7.16      
30 A 1134 1074 65.75      
31 A 1105 1046 14.78      
32 A 1004 950 4.27      
33 A 985 933 6.17      
34 A 976 924 7.21      
35 A 940 890 0.78      
36 A 921 872 4.99      
37 A 805 763 2.22      
38 A 536 508 3.95      
39 A 472 447 8.41      
40 A 418 396 0.94      
41 A 379 359 2.24      
42 A 373 354 12.26      
43 A 316 300 111.32      
44 A 296 280 4.59      
45 A 242 229 0.37      
46 A 227 215 0.26      
47 A 205 194 0.32      
48 A 88 83 1.57      

Unscaled Zero Point Vibrational Energy (zpe) 36711.2 cm-1
Scaled (by 0.947) Zero Point Vibrational Energy (zpe) 34765.5 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 M06-2X/6-31G*
ABC
0.14641 0.10066 0.06500

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.522 -1.171 0.042
H2 -2.504 -1.134 -0.438
H3 -1.013 -2.087 -0.267
H4 -1.668 -1.202 1.126
C5 1.682 1.062 -0.079
H6 1.341 2.041 0.258
H7 2.661 0.879 0.373
H8 1.800 1.076 -1.166
O9 1.228 -1.310 -0.107
H10 2.091 -1.415 0.325
C11 0.701 -0.056 0.307
H12 0.569 -0.060 1.400
C13 -0.688 0.061 -0.336
H14 -0.551 0.063 -1.423
C15 -1.442 1.333 0.083
H16 -1.570 1.353 1.170
H17 -0.928 2.244 -0.225
H18 -2.434 1.341 -0.376

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 H8 O9 H10 C11 H12 C13 H14 C15 H16 H17 H18
C11.09381.09131.09433.90694.30794.67004.18882.75683.63192.50092.72901.53522.14772.50622.76573.47662.7052
H21.09381.77731.77424.74015.03425.60244.89303.75044.66623.46233.73752.17612.49362.73573.10513.73312.4763
H31.09131.77731.77504.14884.78044.76514.32772.37733.23072.71903.06372.17332.48473.46423.76924.33143.7117
H41.09431.77421.77504.21884.50804.86194.74053.14913.84952.75592.52612.16623.05712.75042.55753.77423.0507
C53.90694.74014.14884.21881.08961.09471.09322.41502.54351.53652.16462.58512.79073.13973.49552.86834.1356
H64.30795.03424.78044.50801.08961.76261.78003.37213.53722.19242.51272.89623.21172.87693.12692.32863.8911
H74.67005.60244.76514.86191.09471.76261.77462.65992.36452.17282.51273.51983.76984.13874.33173.88645.1706
H84.18884.89304.32774.74051.09321.78001.77462.67242.91792.15893.06442.81282.57323.48434.11013.11344.3155
O92.75683.75042.37733.14912.41503.37212.65992.67240.97101.42202.06532.36672.60423.76154.06814.15784.5282
H103.63194.66623.23073.84952.54353.53722.36452.91790.97101.94482.30443.21553.49604.48294.66734.77565.3444
C112.50093.46232.71902.75591.53652.19242.17282.15891.42201.94481.10031.53492.13912.56332.80812.86763.4989
H122.72903.73753.06372.52612.16462.51272.51273.06442.06532.30441.10032.14623.03922.77802.57393.19173.7590
C131.53522.17612.17332.16622.58512.89623.51982.81282.36673.21551.53492.14621.09581.53702.17142.19852.1650
H142.14772.49362.48473.05712.79073.21173.76982.57322.60423.49602.13913.03921.09582.16223.07012.51622.5047
C152.50622.73573.46422.75043.13972.87694.13873.48433.76154.48292.56332.77801.53702.16221.09431.09011.0929
H162.76573.10513.76922.55753.49553.12694.33174.11014.06814.66732.80812.57392.17143.07011.09431.77481.7707
H173.47663.73314.33143.77422.86832.32863.88643.11344.15784.77562.86763.19172.19852.51621.09011.77481.7623
H182.70522.47633.71173.05074.13563.89115.17064.31554.52825.34443.49893.75902.16502.50471.09291.77071.7623

picture of 2-Butanol, 3-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C13 C11 109.094 C1 C13 H14 108.280
C1 C13 C15 109.328 H2 C1 H3 108.855
H2 C1 H4 108.360 H2 C1 C13 110.619
H3 C1 H4 108.608 H3 C1 C13 110.540
H4 C1 C13 109.802 C5 C11 O9 109.370
C5 C11 H12 109.236 C5 C11 C13 114.633
H6 C5 H7 107.599 H6 C5 H8 109.273
H6 C5 C11 112.076 H7 C5 H8 108.414
H7 C5 C11 110.202 H8 C5 C11 109.198
O9 C11 H12 109.273 O9 C11 C13 106.276
H10 O9 C11 107.221 C11 C13 H14 107.631
C11 C13 C15 113.115 H12 C11 C13 107.922
C13 C15 H16 110.084 C13 C15 H17 112.511
C13 C15 H18 109.666 H14 C13 C15 109.274
H16 C15 H17 108.681 H16 C15 H18 108.110
H17 C15 H18 107.663
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.477      
2 H 0.151      
3 H 0.188      
4 H 0.143      
5 C -0.497      
6 H 0.162      
7 H 0.146      
8 H 0.168      
9 O -0.658      
10 H 0.407      
11 C 0.134      
12 H 0.119      
13 C -0.123      
14 H 0.150      
15 C -0.486      
16 H 0.151      
17 H 0.159      
18 H 0.162      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.876 0.893 0.841 1.507
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.003 -0.989 2.025
y -0.989 -41.561 -1.309
z 2.025 -1.309 -39.754
Traceless
 xyz
x 4.655 -0.989 2.025
y -0.989 -3.682 -1.309
z 2.025 -1.309 -0.972
Polar
3z2-r2-1.944
x2-y25.558
xy-0.989
xz2.025
yz-1.309


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.266 -0.018 0.115
y -0.018 8.486 0.025
z 0.115 0.025 7.589


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000