Structural investigation of pyridinecarboxylato titanium(IV) complexes: An uncommon monomeric octacoordinated complex vs. a hexaprismatic architecture

Julie L. Fenton; Anasse Laaroussi; Pierre Mobian; Clément Chaumont; Georges Khalil; Clarisse Huguenard; Marc Henry

doi:10.1002/ejic.201301275

Structural investigation of pyridinecarboxylato titanium(IV) complexes: An uncommon monomeric octacoordinated complex vs. a hexaprismatic architecture

Julie L. Fenton, Anasse Laaroussi, Pierre Mobian, Clément Chaumont, Georges Khalil, Clarisse Huguenard, Marc Henry

Chemistry

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7 Scopus citations

Abstract

We report the synthesis and structural characterisation of two titanium(IV) complexes. A new titanium(IV) complex bearing four picolinato ligands, denoted as Ti(pic)₄, has been prepared under solvothermal conditions. This complex identified by single-crystal diffraction is a new example of an octacoordinated environment for titanium(IV) and is close to an ideal triangular dodecahedron. A second synthesis of a hexaprismatric carboxylato titanium complex formulated as [Ti₆(μ₃-O)₆(OiPr) ₆(μ-O₂CC₅H₃NCOOiPr)₆] starting from a dissymmetric anhydride pyridine carboxylic precursor is described. The solid-state analysis shows the presence of a single compound among 13 possible species. Calculations gave evidence of a highly selective mechanism leading to the formation of the final product. The structural characterisation of two titanium(IV) complexes bearing pyridinecarboxylato ligands is reported. An uncommon octacoordinated complex was obtained by treating picolinic acid with titanium isopropoxide. A second complex formulated as [Ti₆(μ₃-O)₆(OiPr)₆(μ-O ₂CC₅H₃NCOOiPr)₆] was prepared from titanium isopropoxide and a dissymmetric anhydride pyridine carboxylic precursor.

Original language	English (US)
Pages (from-to)	357-363
Number of pages	7
Journal	European Journal of Inorganic Chemistry
Issue number	2
DOIs	https://doi.org/10.1002/ejic.201301275
State	Published - Jan 2014

All Science Journal Classification (ASJC) codes

Inorganic Chemistry

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title = "Structural investigation of pyridinecarboxylato titanium(IV) complexes: An uncommon monomeric octacoordinated complex vs. a hexaprismatic architecture",

abstract = "We report the synthesis and structural characterisation of two titanium(IV) complexes. A new titanium(IV) complex bearing four picolinato ligands, denoted as Ti(pic)4, has been prepared under solvothermal conditions. This complex identified by single-crystal diffraction is a new example of an octacoordinated environment for titanium(IV) and is close to an ideal triangular dodecahedron. A second synthesis of a hexaprismatric carboxylato titanium complex formulated as [Ti6(μ3-O)6(OiPr) 6(μ-O2CC5H3NCOOiPr)6] starting from a dissymmetric anhydride pyridine carboxylic precursor is described. The solid-state analysis shows the presence of a single compound among 13 possible species. Calculations gave evidence of a highly selective mechanism leading to the formation of the final product. The structural characterisation of two titanium(IV) complexes bearing pyridinecarboxylato ligands is reported. An uncommon octacoordinated complex was obtained by treating picolinic acid with titanium isopropoxide. A second complex formulated as [Ti6(μ3-O)6(OiPr)6(μ-O 2CC5H3NCOOiPr)6] was prepared from titanium isopropoxide and a dissymmetric anhydride pyridine carboxylic precursor.",

author = "Fenton, {Julie L.} and Anasse Laaroussi and Pierre Mobian and Cl{\'e}ment Chaumont and Georges Khalil and Clarisse Huguenard and Marc Henry",

year = "2014",

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doi = "10.1002/ejic.201301275",

language = "English (US)",

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T1 - Structural investigation of pyridinecarboxylato titanium(IV) complexes

T2 - An uncommon monomeric octacoordinated complex vs. a hexaprismatic architecture

AU - Fenton, Julie L.

AU - Laaroussi, Anasse

AU - Mobian, Pierre

AU - Chaumont, Clément

AU - Khalil, Georges

AU - Huguenard, Clarisse

AU - Henry, Marc

PY - 2014/1

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N2 - We report the synthesis and structural characterisation of two titanium(IV) complexes. A new titanium(IV) complex bearing four picolinato ligands, denoted as Ti(pic)4, has been prepared under solvothermal conditions. This complex identified by single-crystal diffraction is a new example of an octacoordinated environment for titanium(IV) and is close to an ideal triangular dodecahedron. A second synthesis of a hexaprismatric carboxylato titanium complex formulated as [Ti6(μ3-O)6(OiPr) 6(μ-O2CC5H3NCOOiPr)6] starting from a dissymmetric anhydride pyridine carboxylic precursor is described. The solid-state analysis shows the presence of a single compound among 13 possible species. Calculations gave evidence of a highly selective mechanism leading to the formation of the final product. The structural characterisation of two titanium(IV) complexes bearing pyridinecarboxylato ligands is reported. An uncommon octacoordinated complex was obtained by treating picolinic acid with titanium isopropoxide. A second complex formulated as [Ti6(μ3-O)6(OiPr)6(μ-O 2CC5H3NCOOiPr)6] was prepared from titanium isopropoxide and a dissymmetric anhydride pyridine carboxylic precursor.

AB - We report the synthesis and structural characterisation of two titanium(IV) complexes. A new titanium(IV) complex bearing four picolinato ligands, denoted as Ti(pic)4, has been prepared under solvothermal conditions. This complex identified by single-crystal diffraction is a new example of an octacoordinated environment for titanium(IV) and is close to an ideal triangular dodecahedron. A second synthesis of a hexaprismatric carboxylato titanium complex formulated as [Ti6(μ3-O)6(OiPr) 6(μ-O2CC5H3NCOOiPr)6] starting from a dissymmetric anhydride pyridine carboxylic precursor is described. The solid-state analysis shows the presence of a single compound among 13 possible species. Calculations gave evidence of a highly selective mechanism leading to the formation of the final product. The structural characterisation of two titanium(IV) complexes bearing pyridinecarboxylato ligands is reported. An uncommon octacoordinated complex was obtained by treating picolinic acid with titanium isopropoxide. A second complex formulated as [Ti6(μ3-O)6(OiPr)6(μ-O 2CC5H3NCOOiPr)6] was prepared from titanium isopropoxide and a dissymmetric anhydride pyridine carboxylic precursor.

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Structural investigation of pyridinecarboxylato titanium(IV) complexes: An uncommon monomeric octacoordinated complex vs. a hexaprismatic architecture

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