Incorporation of Thorium in the Zircon Structure Type through the Th1–xErx(SiO4)1–x(PO4)x Thorite–Xenotime Solid Solution

International audienc

Tris(tetrabutylammonium) tris(nitrato-κ2O,O′)tetrakis(thiocyanato-κN)thorium(IV)

The title compound, (C16H36N)3[Th(NCS)4(NO3)3], was obtained from the reaction of Th(NO3)4·5H2O with (Bu4N)(NCS). The ThIV atom is in a ten-coordinate environment of irregular geometry, being bound to the N atoms of the four thiocyanate ions and to three bidentate nitrate ions. The average Th—N and Th—O bond lengths are 2.481 (10) and 2.57 (3) Å, respectively