| 摘要 |
This disclosure provides a process for preparing an anhydrous chromium(III) halide complex, comprising contacting a chromium(III) halide hydrate, a water absorption agent, and a coordinating solvent, L, and forming a chromium(III) halide complex having the formula CrX3.mL, wherein X is a halide and m is the number of moles of L per mole of chromium. This process is exemplified in the preparation of the substantially anhydrous or anhydrous CrCl3(THF)3, the process comprising contacting CrCl3.6H2O, tetrahydrofuran, and 3 Å, 4 Å, 5 Å, 10×, or 13× molecular sieves; forming CrCl3(THF)3; and isolating the CrCl3(THF)3 having a water content of less than or equal to 100 ppm.
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