Uranium at heart of rare hydrogen cyanide complex
![Structure of [UCl4(HCN)4]](https://d2cbg94ubxgsnp.cloudfront.net/Pictures/100x67/4/5/2/135452_The-structure-of-the--UCl4-HCN-4--molecule-in-its-solid-state-compound.jpg)
Turquoise powder is only second example of a hydrogen cyanide complex of a uranium compound
Chemists in Germany have synthesised tetrachloridotetraformonitrileuranium(IV), [UCl4(HCN)4] – one of very few examples of a complex with hydrogen cyanide as a ligand, let alone one containing uranium.