TY - JOUR
T1 - Lewis-base adducts of main Group 1 metal compounds. Part 2. Syntheses and structures of [Li4Cl4(pmdien)3] and [LiI(pmdien)]
AU - Raston, Colin L.
AU - Skelton, Brian W.
AU - Whitaker, Claire R.
AU - White, Allan H.
PY - 1988/4
Y1 - 1988/4
N2 - Crystallization of lithium chloride from its solution in excess NNN′N′N″-pentamethyldiethylene-triamine (pmdien) in hydrocarbon yilds a 4:3 adduct, characterised crystallographically as [Li4Cl4(pmdien)3], crystals of which are monoclinic, space group P21/n, with a = 9.318(7), b = 34.91(2), c = 13.578(7) Å, β = 97.08(5)°, Z = 4 oligomers; R = 0.077 for 2 286 observed reflections. Lithium iodide yields a 1:1 mononuclear species, [LiI(pmdien)], crystals of which are orthorhombic, space group Pbam, with a = 14.895(8), b = 14.815(8), c = 13.550(8) Å, Z = 8; R = 0.063 for 913 observed reflections. In the iodide, there are two independent molecules, each with m symmetry and four-co-ordinate lithium [Li-I 2.75(3), 2.67(3) Å], whereas the chloride contains both four- and five-co-ordinate lithium atoms.
AB - Crystallization of lithium chloride from its solution in excess NNN′N′N″-pentamethyldiethylene-triamine (pmdien) in hydrocarbon yilds a 4:3 adduct, characterised crystallographically as [Li4Cl4(pmdien)3], crystals of which are monoclinic, space group P21/n, with a = 9.318(7), b = 34.91(2), c = 13.578(7) Å, β = 97.08(5)°, Z = 4 oligomers; R = 0.077 for 2 286 observed reflections. Lithium iodide yields a 1:1 mononuclear species, [LiI(pmdien)], crystals of which are orthorhombic, space group Pbam, with a = 14.895(8), b = 14.815(8), c = 13.550(8) Å, Z = 8; R = 0.063 for 913 observed reflections. In the iodide, there are two independent molecules, each with m symmetry and four-co-ordinate lithium [Li-I 2.75(3), 2.67(3) Å], whereas the chloride contains both four- and five-co-ordinate lithium atoms.
UR - http://www.scopus.com/inward/record.url?scp=37049075814&partnerID=8YFLogxK
U2 - 10.1039/DT9880000987
DO - 10.1039/DT9880000987
M3 - Article
SP - 987
EP - 990
JO - Journal of the Chemical Society, Dalton Transactions
JF - Journal of the Chemical Society, Dalton Transactions
SN - 1470-479X
IS - 4
ER -