Abstract
ABSTRACTThe crystal structure of ceruleite, CuAl4[AsO4]2(OH)8(H2O)4, has been solved to anR1of 0.0307, using the world's largest crystals from the Cap Garonne mine, France. Ceruleite crystallizes in space groupP21/n, with the unit cella= 7.2000(14),b= 11.345(2),c= 9.856(2) Å, β = 105.57(3)°,V= 775.6(3) Å3andZ= 1. Ceruleite has a unique structure that consists of Al(O,OH)6octahedra that are sharing edges to form rhombus-shaped tetramers. AsO4tetrahedra share two corners with one such rhombus and the other two corners with each of two other rhombi, linking them into a very open mesoporous framework. Cu(OH)2(H2O)2squares lie in the channels and link Al4rhombi along ||b. H2O molecules are also located in the channels.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
