Trans stilbene

An aromatic alkene, C14H12, 180.25 g/mol. Boiling point 306-307 °C @ 760 mm Hg, melting point 124 °C, as published.

verified recordOrganic — aromatic alkene7 measured properties

Identifiers

Molecular formula: C₁₄H₁₂
Molecular weight: 180.25 g/mol
Exact mass: 180.0939 g/mol
IUPAC name: (E)-stilbene
SMILES: C(=Cc1ccccc1)c1ccccc1
Isomeric SMILES: C(=C/c1ccccc1)\c1ccccc1
InChI: InChI=1S/C14H12/c1-3-7-13(8-4-1)11-12-14-9-5-2-6-10-14/h1-12H/b12-11+
InChIKey: PJANXHGTPQOBST-VAWYXSNFSA-N

Open in ReactionLens Use in reaction prediction

Measured properties

Published measurements, each with its source. Two readings of one property are both shown, in the units each used.

Boiling Point: 583 to 585 °F at 760 mmHg (NTP, 1992)measured · CAMEO Chemicals; 306-307 °C @ 760 mm Hgmeasured · Hazardous Substances Data Bank (HSDB)
Melting Point: 255 to 257 °F (NTP, 1992)measured · CAMEO Chemicals; 124 °Cmeasured · Hazardous Substances Data Bank (HSDB)
Density: 0.9707 at 68 °F (NTP, 1992) - Less dense than water; will floatmeasured · CAMEO Chemicals; 0.9707measured · Hazardous Substances Data Bank (HSDB)
Solubility: Insoluble (NTP, 1992)measured · CAMEO Chemicals; Freely sol in benzene, ether; practically insol in water; sol in 90 parts cold alc, 13 parts boiling alcmeasured · Hazardous Substances Data Bank (HSDB)
Vapor Pressure: 0.000881 [mmHg]measured · Haz-Map, Information on Hazardous Chemicals and Occupational Diseases; 8.81X10-4 mm Hg @ 25 °Cmeasured · Hazardous Substances Data Bank (HSDB)
LogP: log Kow = 4.81measured · Hazardous Substances Data Bank (HSDB); 4.59measured · SangsterLogP
Refractive Index: Index of refraction: 1.6264 @ 17 °Cmeasured · Lide, D.R. (ed.). CRC Handbook of Chemistry and Physics. 76th ed. Boca Raton, FL: CRC Press Inc., 1995-1996., p. 3-46

Calculated properties

Derived from the structure, not from a sample; kept apart from the measurements above.

Molecular weight: 180.24 g/molcalculated · reference compound database; Average mass of one molecule, from reference compound database.
Exact mass: 180.093900383 Dacalculated · reference compound database; Mass of the most common isotopic form.
XLogP3: 4.8calculated · reference compound database; Estimated oil/water partition, computed by reference compound database.
Polar surface area: 0 Å²calculated · reference compound database; Polar surface area as computed by reference compound database.
Complexity: 148calculated · reference compound database; A rough measure of how intricate the structure is.
H-bond donors: 0calculated · reference compound database
H-bond acceptors: 0calculated · reference compound database
logP: 3.857calculated · chemistry engine; Estimated preference for oil over water. Higher means more oil-like.
Topological polar surface area: 0 Å²calculated · chemistry engine; Surface area from polar atoms; relates to how easily a molecule crosses membranes.
H-bond donors: 0calculated · chemistry engine; Atoms that can donate a hydrogen bond.
H-bond acceptors: 0calculated · chemistry engine; Atoms that can accept a hydrogen bond.
Rotatable bonds: 2calculated · chemistry engine; Single bonds the molecule can freely twist around.
Molar refractivity: 61.812 cm³/molcalculated · chemistry engine; Relates to the molecule's polarisability.
Fraction sp³ carbons: 0calculated · chemistry engine; Share of carbon atoms with tetrahedral bonding.
QED drug-likeness: 0.6155calculated · chemistry engine; Quantitative estimate of drug-likeness (0–1).

What it is made of

Elements

C Carbon14 atoms · 93.3% by mass
H Hydrogen12 atoms · 6.7% by mass

Percentages are of the molecular weight above, worked out the same way the molar mass calculator does it.

Structure

Heavy atoms, hydrogen excluded: 14
Total atoms, hydrogen included: 26
Rings: 2
Aromatic rings: 2
Stereocentres: 0
Formal charge: 0

Functional groups

Alkene
A carbon–carbon double bond.
Aromatic ring
A flat six-membered ring with delocalised electrons.

Matched by structural pattern, not by a measurement.

The molecule in three dimensions

Rotate and inspect the atoms. Loaded only when you ask, so the page stays light.

The drawing above is a diagram of what is bonded to what. A molecule is not flat, and the model here is one low-energy shape generated from the connectivity — useful for seeing which groups can reach each other, and not a measured structure. A real sample is a population of conformations, interconverting.

Reactions it appears in

No documented reaction with a written procedure and a source involves Trans stilbene yet.

Other names for it

The systematic name on this record is (E)-stilbene.

The sources also call it trans-Stilbene, (E)-Stilbene, (E)-1,2-Diphenylethene, TRANS-1,2-DIPHENYLETHYLENE, (E)-1,2-Diphenylethylene, Toluylene, trans-Diphenylethene, trans-1,2-Diphenylethene, Benzene, 1,1'-(1E)-1,2-ethenediylbis-, trans-alpha,beta-Diphenylethylene, DTXSID4026050, Benzene, 1,1'-(1,2-ethenediyl)bis-, (E)-.

Structurally related

Nothing structurally close to Trans stilbene has a page here yet.

Seen alongside it in reaction records

Molecules that appear in the same recorded reactions as Trans stilbene. This says nothing about structure: most of them are the bases, solvents, ligands and catalysts the chemistry needed, and they are here because somebody put them in the same flask.

1,1'-diphenylethylene

formed as a product

C₁₄H₁₂, 180.25 g/mol.

1,3,5-Trimethoxybenzene

formed as a product

C₉H₁₂O₃, 168.192 g/mol.

1,3-Bis(diphenylphosphino)propane

C₂₇H₂₆P₂, 412.453 g/mol.

1,1'-Ferrocenediyl-bis(diphenylphosphine)

C₃₄H₂₈FeP₂, 554.391 g/mol.

1,3-Bis(2,4,6-trimethylphenyl)imidazolium chloride

C₂₁H₂₅ClN₂, 340.898 g/mol.

1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)

C₃₉H₃₂OP₂, 578.632 g/mol.

Where these values came from

reference compound database638088
compound record
chemistry engine
structure perception

compound record.

What this page does not claim

Identifiers are copied from the source record, measured values are reported as published, and calculated values are marked as calculated. Nothing here is a hazard, purity or handling assessment — how the library is checked.