6-Benzyl-2-methyl-1,3-bis(pentafluorophenyl)-1,3,6,2-triazaalumocane

Abstract

In the title compound, [Al(CH3)(C23H15F10N3)], the AlIII atom is coordinated in a distorted tetra­hedral geometry by three N atoms from the tridentate amine and by one C atom of the methyl substituent. Further, there is a short intra­molecular Al⋯F contact [2.5717 (11) Å], leading to an overall distorted trigonal–bipyramidal coordination environment around AlIII.

Diamidoamine Aluminum Complexes: Synthesis, Structure, L–Lactide and ϵ‐Caprolactone Polymerization

“…The molecular structures of 1 b , 3 b, 4 b , 5 b and 5 a as well as representative bond lengths and angles are shown in Figures 1–5, respectively. We also previously reported X‐ray structure for 2 b [32] . The common feature of all these compounds is that they are all monomeric.…”

“…The common feature of all these compounds is that they are all monomeric. Coordination number of aluminum atom in monomethyl complexes 1 b and 3 b (as well as in 2 b [32] ), which have at least one “two carbon arm” in the solid state is five due to three covalent bonds of aluminum with two nitrogen atoms and carbon atom (methyl group) and two coordination bonds (expectedly longer than covalent) – strong Al←N bond and intramolecular contact Al←F, short enough (2.536–2.572 Å). It should be noted that no such coordination (M←F) is observed in Mo‐ and Re complexes as well as germylenes or stannylenes based on the ligands of this type [3,10,33] .…”

Crystal structure of a mixed-valence μ-oxide Sn12cluster

“…For general background to the chemistry of stannylene complexes with transition metals, see: Baumgartner & Marschner (2014); Lee & Sekiguchi (2010). For our previous work on heavy carbene analogs, see: Kireenko et al (2012Kireenko et al ( , 2013; Huang et al (2012Huang et al ( , 2013 2= 95.014 (2) = 110.605 (2) V = 4403.5 (8) Å 3 Z = 1 Mo K radiation = 1.88 mm À1 T = 173 K 0.25 Â 0.10 Â 0.08 mm Table 1 Hydrogen-bond geometry (Å , ). Data collection: APEX2 (Bruker, 2008); cell refinement: SAINT (Bruker, 2008); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.…”

“…containing ligands (Kireenko et al, 2012(Kireenko et al, , 2013Huang et al, 2012Huang et al, , 2013.…”