Synthesis and structure of an anionic aluminium–nitrogen compound containing a ladder-shaped core

A tetranuclear aluminium hydrazide derivative with a ladder-type structure

“…The geometries at Al(2) and N(1) are distorted tetrahedral and pyramidal, respectively. Overall, the geometry of the Al 4 N 4 core of 1 is somewhat similar to that reported 11 for a lithium salt of composition C 52 H 78 Al 4 Li 2 N 4 .…”

Halocarbon and arene coordination of lithium(I) in (1-anilino-3-phenyliminopropenyl)chloro(methyl)aluminium bis{[tetrakis(pentafluorophenyl)borato]lithium} benzene solvate

“…The Li2ÐC distances [average 2.53 (4) A Ê ] are appreciably longer than the corresponding distances in other compounds with 6 -coordinated Li + cations, e.g. 2.38 (5) A Ê in [Li{Al( i Bu) 2 (NMes)}-{Al(N[C 6 H 2 (CH 3 ) 2 CH 2 ])}] 2 (Mes = 2,4,6-Me 3 C 6 H 2 ; Horchler et al, 1997), 2.32 (4) A Ê in [Li(2,4,6-i Pr 3 C 6 H 2 )] 4 (Ruhklandt-Senge et al, 1993), 2.34 (3) and 2.35 (7) A Ê in [Li( n Bu)] 2 -…”

Synthesis and Structure of a Monomeric Chiral Lithium Dialkylaluminium Amide Derived from Schöllkopf’s Bis‐lactim Ether and α‐(Methylbenzyl)benzylamine

“…[3aϪ3e] The lithium dialkylaluminium amide complexes that have been structurally characterised to date are comprised primarily of (N 2 MMЈ) rings, [4aϪ4d] the two metals not surprisingly being bridged by the N amido atoms, for example [Me 2 Al(Bn 2 N) 2 ]Li· (THF)], [5] although further association into a ladder-type structure [6] and bridging through Me groups has also been observed. [7] Recently, we have been interested in two related areas dealing with the structural chemistry of chiral lithium amide bases which are important in the synthesis of biologically active compounds.…”