Group 2/titanium heterometallic alkoxides; their reproducible syntheses and characterization. Crystal structures of the compounds [SrTi4(OEt)18] and [Sr2Ti(OPri)8(PriOH)3] · 2PriOH

Ian Baxter; Simon R. Drake; Michael B. Hursthouse; K. M.Abdul Malik; D. Michael P. Mingos; John C. Plakatouras; David J. Otway

doi:10.1016/S0277-5387(97)00469-5

Group 2/titanium heterometallic alkoxides; their reproducible syntheses and characterization. Crystal structures of the compounds [SrTi₄(OEt)₁₈] and [Sr₂Ti(OPrⁱ)₈(PrⁱOH)₃] · 2PrⁱOH

Ian Baxter
, Simon R. Drake
, Michael B. Hursthouse
, K. M.Abdul Malik
, D. Michael P. Mingos
, John C. Plakatouras
, David J. Otway

Research output: Contribution to journal › Article › peer-review

Abstract

The reactions of either (i) bulk metal in alcohol (EtOH or PrⁱOH); or (ii) the preformed metal alkoxides, [M(OR)₂(ROH)_x]_n with a stoichiometric amount of Ti(OPr1), at reflux yielded the novel hydrocarbon soluble molecular aggregates [MTi₂(OEt)₁₀(EtOH)₅]_n [M = Sr (1) and Ba (2)] ; [MTi₄(OEt)₁₈] [M = Sr (3) and Ba (4)]; [M₂Ti(OEt)₈(EtOH)₅]_n [M = Sr (5) and Ba (6)] ; and [Sr₂Ti(OPrⁱ)₈(PrⁱOH)₃] · 2PrⁱOH (7). All complexes have been characterized by elemental analyses and spectroscopic methods ; (3) and (7) have also been characterized by X-ray crystallography. The structure of (3) is based on a "bow-tie" Ti₂SrTi₂ unit where the strontium is coordinated to two face sharing bioctahedral Ti₂(OEt)^-₉ units, via two "terminal" and two "bridging" ethoxo ligands from each Ti₂(OEt)^-₉ unit. In (7) the Sr₂Ti unit forms a triangle, bridged by three μ₂-PrⁱO ligands and capped by two μ₃-PrⁱO ligands, and further supported by six terminal PrⁱO/PrⁱOH ligands.

Original language	English
Pages (from-to)	625-639
Number of pages	15
Journal	Polyhedron
Volume	17
Issue number	5-6
DOIs	https://doi.org/10.1016/S0277-5387(97)00469-5
Publication status	Published - 1998
Externally published	Yes

Keywords

Crystal structure
Ethoxide
Isopropoxide
Strontium
Titanium

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Baxter, I., Drake, S. R., Hursthouse, M. B., Malik, K. M. A., Mingos, D. M. P., Plakatouras, J. C., & Otway, D. J. (1998). Group 2/titanium heterometallic alkoxides; their reproducible syntheses and characterization. Crystal structures of the compounds [SrTi₄(OEt)₁₈] and [Sr₂Ti(OPrⁱ)₈(PrⁱOH)₃] · 2PrⁱOH. Polyhedron, 17(5-6), 625-639. https://doi.org/10.1016/S0277-5387(97)00469-5

@article{38771d19569a4a5e9174d9bd3b4c8973,

title = "Group 2/titanium heterometallic alkoxides; their reproducible syntheses and characterization. Crystal structures of the compounds [SrTi4(OEt)18] and [Sr2Ti(OPri)8(PriOH)3] · 2PriOH",

abstract = "The reactions of either (i) bulk metal in alcohol (EtOH or PriOH); or (ii) the preformed metal alkoxides, [M(OR)2(ROH)x]n with a stoichiometric amount of Ti(OPr1), at reflux yielded the novel hydrocarbon soluble molecular aggregates [MTi2(OEt)10(EtOH)5]n [M = Sr (1) and Ba (2)] ; [MTi4(OEt)18] [M = Sr (3) and Ba (4)]; [M2Ti(OEt)8(EtOH)5]n [M = Sr (5) and Ba (6)] ; and [Sr2Ti(OPri)8(PriOH)3] · 2PriOH (7). All complexes have been characterized by elemental analyses and spectroscopic methods ; (3) and (7) have also been characterized by X-ray crystallography. The structure of (3) is based on a {"}bow-tie{"} Ti2SrTi2 unit where the strontium is coordinated to two face sharing bioctahedral Ti2(OEt)-9 units, via two {"}terminal{"} and two {"}bridging{"} ethoxo ligands from each Ti2(OEt)-9 unit. In (7) the Sr2Ti unit forms a triangle, bridged by three μ2-PriO ligands and capped by two μ3-PriO ligands, and further supported by six terminal PriO/PriOH ligands.",

keywords = "Crystal structure, Ethoxide, Isopropoxide, Strontium, Titanium",

author = "Ian Baxter and Drake, \{Simon R.\} and Hursthouse, \{Michael B.\} and Malik, \{K. M.Abdul\} and Mingos, \{D. Michael P.\} and Plakatouras, \{John C.\} and Otway, \{David J.\}",

year = "1998",

doi = "10.1016/S0277-5387(97)00469-5",

language = "English",

volume = "17",

pages = "625--639",

journal = "Polyhedron",

issn = "0277-5387",

publisher = "Elsevier Ltd",

number = "5-6",

}

Baxter, I, Drake, SR, Hursthouse, MB, Malik, KMA, Mingos, DMP, Plakatouras, JC & Otway, DJ 1998, 'Group 2/titanium heterometallic alkoxides; their reproducible syntheses and characterization. Crystal structures of the compounds [SrTi₄(OEt)₁₈] and [Sr₂Ti(OPrⁱ)₈(PrⁱOH)₃] · 2PrⁱOH', Polyhedron, vol. 17, no. 5-6, pp. 625-639. https://doi.org/10.1016/S0277-5387(97)00469-5

TY - JOUR

T1 - Group 2/titanium heterometallic alkoxides; their reproducible syntheses and characterization. Crystal structures of the compounds [SrTi4(OEt)18] and [Sr2Ti(OPri)8(PriOH)3] · 2PriOH

AU - Baxter, Ian

AU - Drake, Simon R.

AU - Hursthouse, Michael B.

AU - Malik, K. M.Abdul

AU - Mingos, D. Michael P.

AU - Plakatouras, John C.

AU - Otway, David J.

PY - 1998

Y1 - 1998

N2 - The reactions of either (i) bulk metal in alcohol (EtOH or PriOH); or (ii) the preformed metal alkoxides, [M(OR)2(ROH)x]n with a stoichiometric amount of Ti(OPr1), at reflux yielded the novel hydrocarbon soluble molecular aggregates [MTi2(OEt)10(EtOH)5]n [M = Sr (1) and Ba (2)] ; [MTi4(OEt)18] [M = Sr (3) and Ba (4)]; [M2Ti(OEt)8(EtOH)5]n [M = Sr (5) and Ba (6)] ; and [Sr2Ti(OPri)8(PriOH)3] · 2PriOH (7). All complexes have been characterized by elemental analyses and spectroscopic methods ; (3) and (7) have also been characterized by X-ray crystallography. The structure of (3) is based on a "bow-tie" Ti2SrTi2 unit where the strontium is coordinated to two face sharing bioctahedral Ti2(OEt)-9 units, via two "terminal" and two "bridging" ethoxo ligands from each Ti2(OEt)-9 unit. In (7) the Sr2Ti unit forms a triangle, bridged by three μ2-PriO ligands and capped by two μ3-PriO ligands, and further supported by six terminal PriO/PriOH ligands.

AB - The reactions of either (i) bulk metal in alcohol (EtOH or PriOH); or (ii) the preformed metal alkoxides, [M(OR)2(ROH)x]n with a stoichiometric amount of Ti(OPr1), at reflux yielded the novel hydrocarbon soluble molecular aggregates [MTi2(OEt)10(EtOH)5]n [M = Sr (1) and Ba (2)] ; [MTi4(OEt)18] [M = Sr (3) and Ba (4)]; [M2Ti(OEt)8(EtOH)5]n [M = Sr (5) and Ba (6)] ; and [Sr2Ti(OPri)8(PriOH)3] · 2PriOH (7). All complexes have been characterized by elemental analyses and spectroscopic methods ; (3) and (7) have also been characterized by X-ray crystallography. The structure of (3) is based on a "bow-tie" Ti2SrTi2 unit where the strontium is coordinated to two face sharing bioctahedral Ti2(OEt)-9 units, via two "terminal" and two "bridging" ethoxo ligands from each Ti2(OEt)-9 unit. In (7) the Sr2Ti unit forms a triangle, bridged by three μ2-PriO ligands and capped by two μ3-PriO ligands, and further supported by six terminal PriO/PriOH ligands.

KW - Crystal structure

KW - Ethoxide

KW - Isopropoxide

KW - Strontium

KW - Titanium

UR - https://www.scopus.com/pages/publications/0039572406

U2 - 10.1016/S0277-5387(97)00469-5

DO - 10.1016/S0277-5387(97)00469-5

M3 - Article

AN - SCOPUS:0039572406

SN - 0277-5387

VL - 17

SP - 625

EP - 639

JO - Polyhedron

JF - Polyhedron

IS - 5-6

ER -

Group 2/titanium heterometallic alkoxides; their reproducible syntheses and characterization. Crystal structures of the compounds [SrTi₄(OEt)₁₈] and [Sr₂Ti(OPrⁱ)₈(PrⁱOH)₃] · 2PrⁱOH

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Keywords

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