LnCl(CN2) with Ln: La, Ce, and Pr: Synthesis and Structure of a New Lanthanide Chloride Cyanamide...
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2005 Lanthanoids I 2800 LnCl(CN 2 ) with Ln: La, Ce, and Pr: Synthesis and Structure of a New Lanthanide Chloride Cyanamide Related to the PbFCl-Type Structure. — LaCl(CN2) is prepared by solid state metathesis reactions between LaCl3 and Li 2(CN2) (silica tube, 600 °C, 2 d). Single crystals are obtained as colorless transparent plates using a LiCl/KCl flux. LaCl(CN2) crystallizes in space group P21/m with Z = 2. The structure is closely related to that of tetragonal LaOCl (PbFCl type) and contains a [La 2 Cl 2 ] 4+ block layer and two layers of ions in an alternating sequence. Cerium and praseodymium analogues were identified from indexed powder patterns with analo- gous unit cells, indicating that they form isostructural compounds. — (SRINIVASAN, R.; GLASER, J.; TRAGL, S.; MEYER*, H.-J.; Z. Anorg. Allg. Chem. 631 (2005) 2-3, 479-483; Inst. Anorg. Chem., Eberhard-Karls-Univ., D-72076 Tuebingen, Germany; Eng.) — Schramke 20- 020 C N 2- 2
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Transcript of LnCl(CN2) with Ln: La, Ce, and Pr: Synthesis and Structure of a New Lanthanide Chloride Cyanamide...
2005
LanthanoidsI 2800 LnCl(CN2) with Ln: La, Ce, and Pr: Synthesis and Structure of a New Lanthanide
Chloride Cyanamide Related to the PbFCl-Type Structure. — LaCl(CN2) is prepared by solid state metathesis reactions between LaCl3 and Li2(CN2) (silica tube, 600 °C, 2 d). Single crystals are obtained as colorless transparent plates using a LiCl/KCl flux. LaCl(CN2) crystallizes in space group P21/m with Z = 2. The structure is closely related to that of tetragonal LaOCl (PbFCl type) and contains a [La2Cl2]
4+ block layer and two layers of ions in an alternating sequence. Cerium and praseodymium analogues were identified from indexed powder patterns with analo-gous unit cells, indicating that they form isostructural compounds. — (SRINIVASAN, R.; GLASER, J.; TRAGL, S.; MEYER*, H.-J.; Z. Anorg. Allg. Chem. 631 (2005) 2-3, 479-483; Inst. Anorg. Chem., Eberhard-Karls-Univ., D-72076 Tuebingen, Germany; Eng.) — Schramke
20- 020
CN2-2
