Polymorph of {2-[(2-hydroxyethyl)iminiomethyl]phenolato-κO}dioxido{2-[(2-oxidoethyl)iminomethyl]phenolato-κ3O,N,O′}molybdenum(VI) - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Acta Crystallographica Section C : Crystal Structure Communications [1968-2013] Année : 2008

Polymorph of {2-[(2-hydroxyethyl)iminiomethyl]phenolato-κO}dioxido{2-[(2-oxidoethyl)iminomethyl]phenolato-κ3O,N,O′}molybdenum(VI)

Dominique Agustin
Jean-Claude Daran
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Rinaldo Poli

Résumé

A second polymorphic form (form I) of the previously reported compound {2-[(2-hydroxy­ethyl)­iminio­methyl]­phen­olato-[kappa]O}dioxido{2-[(2-oxido­ethyl)­imino­methyl]­phenolato-[kappa]3O,N,O'}molybdenum(VI) (form II), [Mo(C9H9NO2)O2(C9­H11NO2)], is presented. The title structure differs from the previously reported polymorph [Glowiak, Jerzykiewicz, Sobczak & Ziólkowski (2003). Inorg. Chim. Acta, 356, 387-392] by the fact that the asymmetric unit contains three mol­ecules linked by O-H...O hydrogen bonds. These trimeric units are further linked through O-H...O hydrogen bonds to form a chain parallel to the [\overline{1}11] direction. As in the previous polymorph, each mol­ecule is built up from an MoO22+ cation surrounded by an O,N,O'-tridentate ligand (O-C6H4­CH=NCH2CH2O-) and weakly coordinated by a second zwitterionic ligand (O-C6H4CH=N+HC2H4OH). All com­plexes are chiral with the absolute configuration at Mo being C or A. The main difference between the two polymorphs results from the alternation of the chirality at Mo within the chain.
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hal-03192652 , version 1 (08-04-2021)

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Dominique Agustin, Jean-Claude Daran, Rinaldo Poli. Polymorph of {2-[(2-hydroxyethyl)iminiomethyl]phenolato-κO}dioxido{2-[(2-oxidoethyl)iminomethyl]phenolato-κ3O,N,O′}molybdenum(VI). Acta Crystallographica Section C : Crystal Structure Communications [1968-2013], 2008, 64 (2), pp.m101-m104. ⟨10.1107/S0108270108000127⟩. ⟨hal-03192652⟩
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