Ventura Dominic L, Brennessel William W, Durfee William S
Department of Chemistry, D'Youville College, 320 Porter Avenue, Buffalo, NY 14201, USA.
Department of Chemistry, University of Rochester, 120 Trustee Road, Rochester, NY 14627, USA.
Acta Crystallogr E Crystallogr Commun. 2020 Apr 3;76(Pt 5):615-620. doi: 10.1107/S2056989020004375. eCollection 2020 May 1.
The sexa-dentate ligand 1,1,1-tris-[(salicyl-idene-amino)-meth-yl]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-oxido-benzyl-idene)amino-κ ,]meth-yl}prop-yl)imino]-meth-yl}phenololato-κ ,)gallium(III) pyridine monosolvate, [Ga(CHNO3)]·CHN, the aceto-nitrile 0.75-solvate, [Ga(CHNO)]·0.75CHN, and ({[(2,2-bis-{[(2-oxido-benzyl-idene)amino-κ ,]meth-yl}prop-yl)imino]-meth-yl}phenololato-κ ,)indium(III) di-chloro-methane monosolvate, [In(CHNO)]·CHCl. All three metal complexes are pseudo-octa-hedral and each structure contains multiple weak C-H⋯O and/or C-H⋯N inter-molecular hydrogen-bonding inter-actions. The syntheses and additional characterization in the forms of melting points, high-resolution mass spectra, infra-red (IR) spectra, and H and C NMR spectra are also reported.
六齿配体1,1,1-三[(水杨醛亚胺基)甲基]乙烷以其三质子化形式与过渡金属和镧系元素配位的情况已被多次报道,但它很少用于主族元素,包括取代形式。据报道,它与镓和铟形成的结构为溶剂化物,即({[(2,2-双-{[(2-氧化苯基亚甲基)亚氨基-κN]甲基}丙基)亚氨基]甲基}苯酚根-κO)镓(III)吡啶单溶剂化物,[Ga(C18H17NO3)]·C5H5N,乙腈0.75溶剂化物,[Ga(C18H17NO3)]·0.75C2H3N,以及({[(2,2-双-{[(2-氧化苯基亚甲基)亚氨基-κN]甲基}丙基)亚氨基]甲基}苯酚根-κO)铟(III)二氯甲烷单溶剂化物,[In(C18H17NO3)]·CH2Cl2。所有三种金属配合物均为假八面体结构,且每个结构都包含多个弱C-H⋯O和/或C-H⋯N分子间氢键相互作用。还报道了这些配合物的合成方法以及熔点、高分辨率质谱、红外(IR)光谱和1H及13C NMR光谱等额外的表征结果。