TY - JOUR
T1 - Lewis-base adducts of main group 1 metal compounds
T2 - X. Lithium bromide and iodide complexes with acetonitrile (1:2, 1:4 respectively)
AU - Raston, Colin L.
AU - Whitaker, Claire R.
AU - White, Allan H.
PY - 1989
Y1 - 1989
N2 - Although only sparingly soluble in acetonitrile, lithium(I) bromide and iodide crystallize as acetonitrile adducts, structurally characterized as LiX/MeCN 1:2 and 1:4 respectively by single-crystal structure determinations. The bromide is a μ, μ′-dibromo-bridged dimer, [(MeCN)2LiBr2Li(NCMe)2)] (monoclinic, P21n, a 7·624(2), b 12·612(2), c 8·047(3) Å, ß 98·94(3)°, Z 2 dimers; R 0·038 for No 1081 ‘observed’ reflections); Li-Br, N 2·534(7), 2·492(8); 2·031(9), 2·047(8) Å respectively, with Li ⋯ Li, 3·17(1); Br⋯Br, 3·8989(9) Å respectively. The iodide is ionic, [Li(NCMe)4]+I- (orthorhombic, P21221, a 20·66(1), b 12·208(6), c 8·429(5) Å, Z 6; R 0·062 for No 866).
AB - Although only sparingly soluble in acetonitrile, lithium(I) bromide and iodide crystallize as acetonitrile adducts, structurally characterized as LiX/MeCN 1:2 and 1:4 respectively by single-crystal structure determinations. The bromide is a μ, μ′-dibromo-bridged dimer, [(MeCN)2LiBr2Li(NCMe)2)] (monoclinic, P21n, a 7·624(2), b 12·612(2), c 8·047(3) Å, ß 98·94(3)°, Z 2 dimers; R 0·038 for No 1081 ‘observed’ reflections); Li-Br, N 2·534(7), 2·492(8); 2·031(9), 2·047(8) Å respectively, with Li ⋯ Li, 3·17(1); Br⋯Br, 3·8989(9) Å respectively. The iodide is ionic, [Li(NCMe)4]+I- (orthorhombic, P21221, a 20·66(1), b 12·208(6), c 8·429(5) Å, Z 6; R 0·062 for No 866).
UR - http://www.scopus.com/inward/record.url?scp=84970568676&partnerID=8YFLogxK
U2 - 10.1071/CH9890201
DO - 10.1071/CH9890201
M3 - Article
AN - SCOPUS:84970568676
SN - 0004-9425
VL - 42
SP - 201
EP - 207
JO - Australian Journal of Chemistry
JF - Australian Journal of Chemistry
IS - 1
ER -