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Die Kristallstrukturen von [Et 3 PNAsPh 3 ] 2 [Ag 2 Br 4 ] und [Et 3 PNAsPh 3 ] 2 [Pd 2 Br 6 ]
Author(s) -
Neumüller Bernhard,
Chitsaz Soheila,
Dehnicke Kurt
Publication year - 2002
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/1521-3749(200203)628:3<523::aid-zaac523>3.0.co;2-c
Subject(s) - crystallography , crystal structure , chemistry , lattice (music) , materials science , stereochemistry , physics , acoustics
Crystal Structures of [Et 3 PNAsPh 3 ] 2 [Ag 2 Br 4 ] and [Et 3 PNAsPh 3 ] 2 [Pd 2 Br 6 ] Colourless single crystals of [Et 3 PNAsPh 3 ] 2 [Ag 2 Br 4 ]( 1 ) and red single crystals of [Et 3 PNAsPh 3 ] 2 [Pd 2 Br 6 ]( 2 ) have been isolated from saturated solutions in acetonitrile of equivalent mixtures of [Et 3 PNAsPh 3 ]Br with AgBr and PdBr 2 , respectively. Both complexes were characterized by IR spectroscopy and by crystal structure determinations. 1 : Space group P1¯, Z = 1, lattice dimensions at ‐70°C: a = 985.0(2), b = 1042.2(5), c = 1345.8(5) pm, α = 102.88(2)°, β = 105.73(2)°, γ = 94.94(2)°, R 1 = 0.0577. 2 : Space group P2 1 /c, Z = 2, lattice dimension at ‐70°C: a = 1003.0(1), b = 1371.8(2), c = 1974.0(1) pm, β = 93.30(1)°, R 1 = 0.0458. The dimeric anions of 1 and 2 form planar, centrosymmetric complex units.