Input interpretation
tetrahydrofuran
Chemical names and formulas
formula | C_4H_8O name | tetrahydrofuran alternate names | cyclotetramethylene oxide | diethylene oxide | furanidine | furan, tetrahydro- | hydrofuran | oxacyclopentane | oxolane | tetramethylene oxide mass fractions | C (carbon) 66.6% | H (hydrogen) 11.2% | O (oxygen) 22.2%
Lewis structure
Draw the Lewis structure of tetrahydrofuran. Start by drawing the overall structure of the molecule: Count the total valence electrons of the carbon (n_C, val = 4), hydrogen (n_H, val = 1), and oxygen (n_O, val = 6) atoms: 4 n_C, val + 8 n_H, val + n_O, val = 30 Calculate the number of electrons needed to completely fill the valence shells for carbon (n_C, full = 8), hydrogen (n_H, full = 2), and oxygen (n_O, full = 8): 4 n_C, full + 8 n_H, full + n_O, full = 56 Subtracting these two numbers shows that 56 - 30 = 26 bonding electrons are needed. Each bond has two electrons, so the above diagram has all the necessary bonds. There are 13 bonds and hence 26 bonding electrons in the diagram. Lastly, fill in the remaining unbonded electrons on each atom. In total, there remain 30 - 26 = 4 electrons left to draw: Answer: | |
3D structure
3D structure
Basic properties
molar mass | 72.11 g/mol phase | liquid (at STP) melting point | -108 °C boiling point | 66 °C density | 0.889 g/cm^3 solubility in water | miscible dielectric constant | 7.58
Hydrophobicity and permeability properties
experimental LogP hydrophobicity | -2.7 predicted LogP hydrophobicity | -0.96 predicted LogS | -3.22
Basic drug properties
approval status | approved | nutraceutical | small molecule drug categories | dietary supplement | micronutrient
Liquid properties (at STP)
density | 0.889 g/cm^3 vapor pressure | 114 mmHg dynamic viscosity | 4.56×10^-4 Pa s (at 25 °C) surface tension | 0.028 N/m refractive index | 1.407 UV cutoff wavelength | 220 nm
Units
Thermodynamic properties
specific heat capacity c_p | gas | 1.058 J/(g K) specific heat of formation Δ_fH° | gas | -2.553 kJ/g specific heat of vaporization | 0.444 kJ/g | specific heat of combustion | 34.77 kJ/g | specific heat of fusion | 0.11844 kJ/g | critical temperature | 540.1 K | critical pressure | 5.19 MPa | (at STP)
Units
Chemical identifiers
CAS number | 109-99-9 Beilstein number | 102391 PubChem CID number | 8028 PubChem SID number | 8146989 SMILES identifier | C1CCOC1