Da. Atwood et D. Rutherford, SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF [(SALPANAL)LI(THF)(2)](2) AND [(SALOMPHANAL)-LI(THF)(2)](2) - A NEW CLASS OF ALUMINUM ANION, Inorganic chemistry, 34(15), 1995, pp. 4008-4010
[(SalpanAl)Li(THF)(2)](2) (1) and [(SalomphanAl)Li(THF)(2)](2) (2) are
two members of a new class of aluminum anion with metal-ligand stoich
iometries of 1:1. Both compounds were spectroscopically and structural
ly characterized. In 1 (shown) the dihedral angles for the two AlLiO2
planes with respect to the central Al2N2 plane are +50.0 degrees (for
Al(1) and -53.2 degrees (for Al(2)). This ''twist'' gives the molecule
helical chirality.