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Experimental data for C5H12O (2-Butanol, 3-methyl-)

22 02 02 11 45
Other names
2-Butanol, 3-methyl-; (+)-3-Methyl-2-butanol; 3-Methyl-2-butanol; Butan-2-ol, 3-methyl-; Methylisopropylcarbinol; sec-Isoamyl Alcohol; 3-methylbutan-2-ol;
INChI INChIKey SMILES IUPAC name
InChI=1S/C5H12O/c1-4(2)5(3)6/h4-6H,1-3H3 MXLMTQWGSQIYOW-UHFFFAOYSA-N C[C@H](O)C(C)C 3-methylbutan-2-ol
State Conformation
1A C1
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Hfg(298.15K) enthalpy of formation -316.40 1.80 kJ mol-1 webbook
Hfg(0K) enthalpy of formation   1.80 kJ mol-1 webbook
Entropy (298.15K) entropy     J K-1 mol-1  
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity     kJ mol-1  
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference

Calculated vibrational frequencies for C5H12O (2-Butanol, 3-methyl-).
Gas-phase IR spectra can be found in the NIST Chemistry Webbook here.
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
       

Calculated rotational constants for C5H12O (2-Butanol, 3-methyl-).
Product of moments of inertia moments of inertia
amu3Å6   0gm3 cm6
Geometric Data
picture of 2-Butanol, 3-methyl-

Point Group C1


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4

Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for C5H12O (2-Butanol, 3-methyl-).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
H-C 11
H-O 1
C-C 4
C-O 1

Connectivity
Atom 1 Atom 2
C1 H2
C1 H3
C1 H4
C1 C13
C5 H6
C5 H7
C5 H8
C5 C11
O9 H10
O9 C11
C11 H12
C11 C13
C13 H14
C13 C15
C15 H16
C15 H17
C15 H18
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
9.750 0.050     webbook
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 1A C1 True           C1 3 5
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for C5H12O (2-Butanol, 3-methyl-).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 1A C1 True       C1 3 5

Calculated electric quadrupole moments for C5H12O (2-Butanol, 3-methyl-).

References
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squib reference DOI
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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