New crystal structural families of lanthanide chloride – Alcohol/water complexes

New Family of Cerium Halide Based Materials: CeX3·ROH Compounds Containing Planes, Chains, and Tetradecanuclear Rings

“…The general synthetic approach for forming the subject six compounds is based on the fact that dimeric adducts of lanthanide halides can be achieved through the coordination of small ligands such as methanol, THF, and isopropanol. It has also been shown in the literature that these materials can easily form 1-D chains upon the incorporation of water into the structure. − Loiseau et al have observed similar trends with NdCl 3 and EuCl 3 incorporating much larger ligands such as phenanthroline and terpyridine. , …”

“…Our exploration of cerium-halide-based compounds has led to the synthesis of several new cerium-halide-containing materials exhibiting unique structural motifs that form via halide bridging between CeX n centers that are further modified via coordinated 16 15 (19) 13.6787 (15) 13.5954 (10) 18.0529 (18) 5.7157 (5) b/Å 21.1043 (13) 23.760 (2) 20.156 (2) 20.7910 (15) 26.421 (3) 11.3696 (9) c/Å 22.7005 (14) 26.488 (2) 21.192 (2) 22.1835 (15) 28.507 (3) 13.3140 (11) α/deg 68.3360 (10) 81.209 (2) 104.428 (2) 104.9620 (10) 90.00…”

“…Connectivity of compound 5, with face-and edge-sharing μ 3 -bridged polyhedra shown in magenta, edge-sharing μ 3 -bridged polyhedra shown in green, bonds involved in edge-sharing shown in purple, bonds involved in face-sharing shown in blue, and bonds involved in corner-sharing shown in aquamarine. 18 ]·(1-PrOH) 2 (4), [(CeCl 3 ) 6 (iBuOH) 15 ]·(iBuOH) 2 (5), and CeCl 3 (sec-BuOH) 2 (H 2 O) (6), with promising scintillation behavior have been synthesized and structurally characterized. The formation of rings containing 14 Ce(III) cations as vertices has occurred in four different systems, 1−4, suggesting that this ring-structure arrangement is particularly stable under the synthesis conditions used here and indicating that additional members of this family of scintillator materials can likely be prepared using different alcohol adducts.…”

“…Here we report on the synthesis and structural characterization of the next generation of potential cerium-based metal− organic scintillators as represented by the following six compounds: (1) [(CeCl 3 ) 7 (BuOH) 16 (H 2 O) 2 ]·(BuOH) 2 , (2) (CeBr 3 ) 14 (BuOH) 36 , (3) [(CeCl 3 ) 7 (1-PrOH) 16 (H 2 O) 2 ]·(1-PrOH) 2 , (4) [(CeBr 3 ) 7 (1-PrOH) 18 ]·(1-PrOH) 2 , (5) [(CeCl 3 ) 6 (iBuOH) 15 ]·(iBuOH) 3 , (6) CeCl 3 (sec-BuOH) 2 (H 2 O).…”