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Dimethylsulfoxid‐Komplexe von Beryllium(II)‐chlorid. Kristallstrukturen von [Be(OSMe 2 ) 4 ]Cl 2 , [Be(OSMe 2 ) 3 (H 2 O)]Cl 2 und [Be(OSMe 2 ) 2 (H 2 O) 2 ]Cl 2
Author(s) -
Neumüller Bernhard,
Petz Wolfgang,
Dehnicke Kurt
Publication year - 2008
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/zaac.200700524
Subject(s) - crystal structure , crystallography , beryllium , x ray crystallography , materials science , chemistry , physics , diffraction , nuclear physics , optics
Dimethylsulfoxide Complexes of Beryllium(II) Chloride. Crystal Structures of [Be(OSMe 2 ) 4 ]Cl 2 , [Be(OSMe 2 ) 3 (H 2 O)]Cl 2 and [Be(OSMe 2 ) 2 (H 2 O) 2 ]Cl 2 Single crystals of the mixed ligand complexes [Be(OSMe 2 ) 3 (H 2 O)]Cl 2 ( 2 ) and [Be(OSMe 2 ) 2 (H 2 O) 2 ]Cl 2 ( 3 ) were obtained from saturated solutions of [Be(OSMe 2 ) 4 ]Cl 2 ( 1 ) in acetonitrile and dichloromethane, respectively, in the presence of traces of water, while single crystals of 1 were available by reaction of the carbodiphosphorane complex [BeCl 2 {C(PPh 3 ) 2 }] with DMSO/toluene solution. All complexes are characterized by X‐ray diffraction and IR spectroscopy. 1 : Space group Pbca , Z = 8, lattice dimensions at 193 K: a = 962.4(1), b = 1888.8(2), c = 2115.8(2) pm, R 1 = 0.0344. 1 consists of [Be(OSMe 2 ) 4 ] 2+ cations with distorted tetrahedral coordination of the oxygen atoms of the DMSO molecules with Be–O distances of 161.9 pm on average, and chloride ions. 2 : Space group $P{\bar 1}$ , Z = 2, lattice dimensions at 193 K: a = 903.9(2), b = 925.2(3), c = 1121.3(3) pm, α = 93.65(3)°, β = 108.03(3)°, γ = 115.20(3)°, R 1 = 0.0472. 3 : Space group $P{\bar 1}$ , Z = 2, lattice dimensions at 173 K: a = 788.2(2), b = 801.6(2), c = 1070.7(3) pm, α = 86.66(2)°, β = 83.80(2)°, γ = 71.00(2)°, R 1 = 0.0699. 2 and 3 also form dications with distorted tetrahedral coordination of the Be 2+ ions by the oxygen atoms of DMSO and water molecules, respectively. The chloride ions are associated by strong hydrogen bonds O–H···Cl to give three‐dimensional networks.