Crystal structures of {1,1,1-tris­[(salicylaldimino)­meth­yl]ethane}­gallium as both a pyridine solvate and an aceto­nitrile 0.75-solvate and {1,1,1-tris[(salicylaldimino)­meth­yl]ethane}­indium di­chloro­methane solvate

The sexa­dentate ligand 1,1,1-tris­[(salicyl­idene­amino)­meth­yl]ethane has been reported numerous times in its triply deprotonated form coordinated to transition metals and lanthanides, yet it has been rarely employed with main-group elements, including in substituted forms. Its structures with gallium and indium are reported as solvates, namely, ({[(2,2-bis­{[(2-oxido­benzyl­idene)amino-κ(2) N,O]meth­yl}prop­yl)imino]­meth­yl}phenololato-κ(2) N,O)gallium(III) pyridine monosolvate, [Ga(C(26)H(24)N(3)O3)]·C(5)H(5)N, the aceto­nitrile 0.75-solvate, [Ga(C(26)H(24)N(3)O(3))]·0.75C(2)H(3)N, and ({[(2,2-bis­{[(2-oxido­benzyl­idene)amino-κ(2) N,O]meth­yl}prop­yl)imino]­meth­yl}phenololato-κ(2) N,O)indium(III) di­chloro­methane monosolvate, [In(C(26)H(24)N(3)O(3))]·CH(2)Cl(2). All three metal complexes are pseudo-octa­hedral and each structure contains multiple weak C—H⋯O and/or C—H⋯N inter­molecular hydrogen-bonding inter­actions. The syntheses and additional characterization in the forms of melting points, high-resolution mass spectra, infra-red (IR) spectra, and (1)H and (13)C NMR spectra are also reported.