TY - JOUR
T1 - Structural diversity in Lewis-base complexes of lithium triflamide
AU - Davidson, M G
AU - Raithby, P R
AU - Johnson, A L
AU - Bolton, P D
N1 - ID number: ISI:000185733200023
PY - 2003
Y1 - 2003
N2 - Complexation of the salt lithium triflamide [LiNTf2; NTf2 = N(SO2CF3)(2)], with a range of nitrogen donor ligands results in the formation of a series of coordination complexes [(Tf2N)Li.N(H)PPh2Me] (1), [(Tf2N)Li.N(H)PPh3] (2), [(Tf2N)Li.TMEDA] (3), [(Tf2N)Li.PMDTEA] (4) and [(Bz-TAC)(2)-Li][NTf2] (5). The molecular structures of 1, 3, 4 and 5 have been determined by single-crystal X-ray diffraction. The resulting solvated structures are discussed in terms of solvent-separated ion pairs, contact ion pairs and higher aggregates, with the degree of aggregation and ion contact being dependent on the relative coordinating abilities and steric demands of the donor ligand and the anion, and provide an insight into the possible structures of lithium aggregates present in complex systems such as polymer electrolytes and synthetic reaction media. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003).
AB - Complexation of the salt lithium triflamide [LiNTf2; NTf2 = N(SO2CF3)(2)], with a range of nitrogen donor ligands results in the formation of a series of coordination complexes [(Tf2N)Li.N(H)PPh2Me] (1), [(Tf2N)Li.N(H)PPh3] (2), [(Tf2N)Li.TMEDA] (3), [(Tf2N)Li.PMDTEA] (4) and [(Bz-TAC)(2)-Li][NTf2] (5). The molecular structures of 1, 3, 4 and 5 have been determined by single-crystal X-ray diffraction. The resulting solvated structures are discussed in terms of solvent-separated ion pairs, contact ion pairs and higher aggregates, with the degree of aggregation and ion contact being dependent on the relative coordinating abilities and steric demands of the donor ligand and the anion, and provide an insight into the possible structures of lithium aggregates present in complex systems such as polymer electrolytes and synthetic reaction media. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003).
U2 - 10.1002/ejic.200300372
DO - 10.1002/ejic.200300372
M3 - Article
SN - 1434-1948
SP - 3445
EP - 3452
JO - European Journal of Inorganic Chemistry
JF - European Journal of Inorganic Chemistry
IS - 18
ER -