Copper hydride

• Kupfermonohydrid
• Copper (I) hydride

Red-brown solid

Fixed

6.38 g · cm -3

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Copper hydride is an inorganic chemical compound of the copper from the group of the hydrides.

Production and representation

Copper hydride can be obtained by reaction of copper iodide in pyridine with lithium aluminum hydride.

Also possible is the preparation of pure copper hydride by reaction of copper (I ) bromide with diisobutylaluminum hydride in pyridine. Copper sulfate is reduced by hypophosphorous acid to copper hydride.

Properties

Copper hydride is a hellrotbraunes, flammable in air powder. It is resistant to about 60 ° C, decomposes above this temperature ( from 110 ° C explosive ) in the elements. In pyridine is soluble with dark red color. It crystallizes in a crystal structure of wurtzite - type with the space group P63mc (a = 2.89 Å, c = 4.63 Å). The enthalpy of formation is 21.3 kJ / mol. The compound may also form a polymer in addition to a dimer of relatively strong hydrogen bonding.

Use

Copper hydride is used as a reagent for the stereoselective synthesis of exocyclic tetrasubstituted enol ethers and olefins.