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The Crystal Structures of the Trihalogenphosphonium Salts X 3 PH + As 2 F 11 − (X = Cl, Br)
Author(s) -
Minkwitz Rolf,
Dzyk Markus
Publication year - 2002
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/1099-0682(200203)2002:3<569::aid-ejic569>3.0.co;2-7
Subject(s) - chemistry , monoclinic crystal system , orthorhombic crystal system , anhydrous , crystallography , protonation , solvent , crystal structure , ion , group (periodic table) , stereochemistry , inorganic chemistry , organic chemistry
The X 3 PH + ions (X = Cl, Br) were prepared as their X 3 PH + As 2 F 11 − salts by protonation of PX 3 with HF/AsF 5 at low temperature in anhydrous HF. Single crystals were obtained directly from this solvent. Cl 3 PH + As 2 F 11 − crystallises in the orthorhombic space group Pnma (No. 53) with a = 2350.6(1) pm, b = 837.7(1) pm, c = 1179.9(1) pm and eight formula units per cell. Br 3 PH + As 2 F 11 − crystallises in the monoclinic space group P 2 1 / m (no. 14) with a = 617.7(1) pm, b = 872.4(2) pm, c = 1182.5(2) pm, β = 94.68(3)° and two formula units per cell.