Phosphoryl Iodide Is Used in the Preparation of Organophosphorus Derivatives

question 72

Multiple Choice

Phosphoryl iodide is used in the preparation of organophosphorus derivatives and phosphate esters. Select the Lewis structure for POI₃ which minimizes formal charges.

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Definitions:

ΔH°

Denotes the standard enthalpy change of a reaction, measured under standard conditions (1 atm, 298.15 K).

Initiation Step

The first step in a chain reaction, where reactive intermediates are produced that propagate the reaction.

Free Radical Chlorination

A chemical reaction where chlorine atoms generated from molecular chlorine initiate a radical chain reaction leading to the chlorination of hydrocarbons.

ΔH°

The standard enthalpy change, indicating the heat absorbed or released in a reaction at standard conditions (1 atm, 298 K).