Single crystals of [(TMEDA)LiCl](2). toluene (1) and [(MeCN)(2)LiCl](n) (2)
can be obtained by dissolving LiCl in TMEDA or acetonitrile and crystalliz
ation (after addition of toluene for 1) at -30 degreesC. 1 is a dimer in th
e solid state while 2 is polymeric. 1 crystallizes in the space group I 2/a
, Z = 4, with lattice dimensions at -90 degreesC: a = 1475.3(1), b = 1112.7
(2), c = 1615.0(2) pm, beta = 103.44(1)degrees; R-1 = 0.0739 with a disorde
r of the TMEDA ligand in two twist-positions. Crystals of 2 possess the spa
ce group Pbcm, Z = 4, with lattice dimensions at -80 degreesC: a = 1256.8(2
), b = 775.2(1), c = 758.6(1) pm; R-1 = 0.0419.