Synthese und Kristallstruktur der Benzyltriphenylphosphonium-bromide: [C6H5-CH2P(C6H5)3]+Br-CH2Cl2 und [C6H5-CH2P(C6H5)3]+Br3 - / Synthesis and Crystal Structures of (Benzyl)triphenylphosphonium Bromides, [C6H5-CH2P(C6H5)3]+Br-CH2Cl2 and [C6H5-CH2P(C6H5)3]+Br3

Autor:	Manfred Meisel, Dirk Wulff-Molder, J. Hubner, H. Vogt
Rok vydání:	1997
Předmět:	Bromine Stereochemistry chemistry.chemical_element General Chemistry Crystal structure Triclinic crystal system Chloride Medicinal chemistry chemistry.chemical_compound chemistry Bromide medicine Triphenylphosphine Methylene medicine.drug Monoclinic crystal system
Zdroj:	Zeitschrift für Naturforschung B. 52:1321-1324
ISSN:	1865-7117 0932-0776
DOI:	10.1515/znb-1997-1107
Popis:	(Benzyl)triphenylphosphonium bromide, [C6H5-CH2P(C6H5)3]+Br- (CH2Cl2) (1) has been prepared by the reaction of triphenylphosphine with benzylbromide and its structure determined. The colorless crystals are triclinic, space group P1̄, Z = 2, a = 976.0(3), b = 1069.0(3), c = 1226.1(4) pm, α = 94.13(3), β = 104.70(3), γ = 100.14(3)°. The lattice contains Br- anions and [C6H5-CH2P(C6H5)3]+ cations. [C6H5-CH2P(C6H5)3]Br3 (2) has been obtained by treating compound 1 with equimolar quantities of elemental bromine in methylene chloride solution. The red crystals of 2 are monoclinic, space group P21/c, Z = 4, a = 917.9(2), b = 1022.6(2), c = 2573.6(5) pm, β = 99.11(2)°, and comprise[C6H5-CH2P(C6H5)3]+ cations and linear, slightly asymmetrical Br3 - anions with bromine-bromine distances of 246.19(11) and 263.69(11) pm.
Databáze:	OpenAIRE
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