[no1]

uranium (III) chloride
• Formula as commonly written: UCl3
• Hill system formula: Cl3U1
• CAS registry number: [10025-93-1]
• Formula weight: 344.387
• Class: chloride
Synonyms
• uranium (III) chloride
• uranium chloride
• uranium trichloride
Physical properties
• Colour: green
• Appearance: crystalline solid
• Melting point: 837°C
• Boiling point: 1657
• Density: 5500 kg m-3
Element analysis and oxidation numbers
For each compound, and where possible, a formal oxidation number for each element is given, but the usefulness of this number is limited, especially so for p-block elements in particular. Based upon that oxidation number, an electronic configuration is also given but note that for more exotic compounds you should view this as a guide only.
Element % Formal oxidation state Formal electronic configuration
Cl 30.88 -1 [Ne].3s2.3p6
U 69.12 3 [Rn].5f3
Synthesis
Not available
Solid state structure
• Geometry of uranium: 9 coordinate: tricapped trigonal prismatic
• Prototypical structure:



Isotope pattern
What follows is the calculated isotope pattern for the UCl3 unit with the most intense ion set to 100%.
Formula: U1Cl3
mass %
339 0.0
340 0.7
341 0.0
342 0.7
343 100.0
344 0.2
345 95.9
346 0.0
347 30.7
348 0.0
349 3.3