β Scribed by D.B Mitzi
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Single crystals of the organic+inorganic perovskite (C 6 H 5 C 2 H 4 NH 3 ) 2 PbCl 4 have been grown at room temperature using a layered solution approach. The bottom solution layer, contained within a long straight tube, consists of PbCl 2 dissolved in concentrated aqueous HCl. A less dense layer of methanol is carefully placed on top of the HCl/PbCl 2 solution using a syringe. Finally, a stoichiometric quantity of C 6 H 5 C 2 H 4 NH 2 (relative to the PbCl 2 ) is added to the top of the column. As the layers slowly di4use together, well-formed crystals of (C 6 H 5 C 2 H 4 NH 3 ) 2 PbCl 4 appear near the interface between the HCl/PbCl 2 and C 6 H 5 C 2 H 4 NH 2 solutions. The thick, plate-like crystals are well suited for X-ray crystallography studies. Room temperature intensity data were re5ned using a triclinic (P1 ) cell (a
π SIMILAR VOLUMES
## CeH5CHzCsH4)2GdCl.THF]2 (1) and ( C ~H ~C H Z C ~H ~) ~E ~C I . T H F (2) were prepared by the reaction of LnC13 ( Ln=Gd, Er) with benzylcyclopentadienyl sodium in THF and characterized by elemental analysis, IR, 'H NMR, 13C NMR, MS and thermal gravimetry. The crystal structures of both compoun