Uranium triiodide

Orthorhombic

A = 432.8 pm b = 1401.1 pm c = 1000.5 pm

Urantriiodid

Black solid

Fixed

6.78 g · cm -3

766 ° C

Risk

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Uranium (III) iodide, is a chemical compound consisting of the elements uranium, and iodine. It has the formula UI3 and belongs to the class of the iodides.

Production and representation

Uranium (III ) iodide can be obtained by reaction of uranium and iodine.

Properties

Uranium (III ) iodide is a black solid which melts at 766 ° C. It crystallizes in the orthorhombic crystal system ( plutonium (III ) bromide - type) in the space group CCMM with the lattice parameters a = 432.8 pm, b = 1401.1 pm and c = 1000.5 pm and four formula units per unit cell. Urantriiodid suitable as Lewis -acid catalyst for various Diels-Alder reactions that are carried out under mild conditions.