What are the 3 geometric isomers of dibenzalacetone?

The three isomers of dibenzalacetone are cis-cis, cis-trans, and trans-trans.

What is the structure of dibenzalacetone?


What does dibenzalacetone look like?

Dibenzylideneacetone or dibenzalacetone, often abbreviated dba, is an organic compound with the formula C17H14O. It is a pale-yellow solid insoluble in water, but soluble in ethanol. Dibenzylideneacetone is used as a component in sunscreens and as a ligand in organometallic chemistry.

What is the possible stable isomer of dibenzalacetone?

The possible isomeric structures are cis-trans, cis-cis, trans-trans, and trans-cis as shown below. Out of all these, the cis-trans and trans-cis isomers are identical and thus they are considered as only one geometrical isomer of dibenzalacetone.

What is the density of dibenzalacetone?

Predicted data is generated using the ACD/Labs Percepta Platform – PhysChem Module

Density: 1.1±0.1 g/cm3
Enthalpy of Vaporization: 65.2±3.0 kJ/mol
Flash Point: 176.1±20.6 °C
Index of Refraction: 1.650
Molar Refractivity: 77.6±0.3 cm3

What is the density of Dibenzalacetone?

How do you make Dibenzalacetone?

There are stepwise method given below to prepare a sample of dibenzalacetone.

  1. Add 10ml of freshly distilled benzaldehyde and 20ml of acetone to a conical flask.
  2. Place the flask in a cold bath of water and then, with regular stirring, add 2.5ml sodium hydroxide dropwise.
  3. Keep the temperature at 30 oC.

How is Dibenzalacetone used in everyday life?

Dibenzalacetone is a yellow solid, which has found use in commercial sunscreen ointments. Benzaldehyde is used in a slight excess (2.2 equiv) in the recommended procedure. This allows the reaction to reach completion in a reasonable amount of time.

Is dibenzalacetone polar?

It is a pale-yellow solid that does not dissolve in water but dissolves in ethanol. It’s a non-polar, symmetrical molecule. In this article, we will study how to prepare a pure sample of dibenzalacetone in detail.

Which geometric isomer of dibenzalacetone is most stable?

Trans-trans is most stable bc less sterics. so yeah.