Early—Late Transition Metal Bonds: Ruthenium—Titanium Compounds with Aryloxide Ligands

William J. Sartain; John P. Selegue

doi:10.1021/om00111a010

Early—Late Transition Metal Bonds: Ruthenium—Titanium Compounds with Aryloxide Ligands

William J. Sartain, John P. Selegue

Chemistry

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Abstract

[RuH(CO)₂(Cp)] reacts with [Ti(2,6-Me₂C₆H₃O)(NMe₂)₃] (1) and [Ti(2,6-Me₂C₆H₃O)₂(NMe₂)₂] (2) to produce [(NMe₂)₂(2,6-Me₂C₆H₃O)TiRu(CO)₂(Cp)] (3) and [(NMe₂)(2,6-Me₂C₆H₃O)₂TiRu(CO)₂(Cp)] (4), respectively. Both products were characterized spectroscopically, and the structure of 4 was determined by an X-ray diffraction study. Compound 4 crystallizes in the space group P2₁/n with a = 8.201 (3) Å, b = 18.776 (4) Å, c = 16.739 (6) Å, β = 103.90 (3)°, and V = 2526.29 Å³. Full-matrix least-squares refinement converged at R = 5.6% and R_w= 6.5%. There is a direct, unbridged bond between titanium and ruthenium in 4, with a metal—metal bond length of 2.573 (1) A. Despite steric crowding in 4, this Ru—Ti distance is 0.09 A shorter than the Ru—Ti distance in [(NMe₂)₃TiRu(CO)₂(Cp)], attributed in part to the weaker electron-donor ability of aryloxides.

Original language	English
Pages (from-to)	2153-2158
Number of pages	6
Journal	Organometallics
Volume	8
Issue number	9
DOIs	https://doi.org/10.1021/om00111a010
State	Published - Sep 1 1989

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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@article{baaa361c7bef4de1b55d9c6eb1eaaeaf,

title = "Early—Late Transition Metal Bonds: Ruthenium—Titanium Compounds with Aryloxide Ligands",

abstract = "[RuH(CO)2(Cp)] reacts with [Ti(2,6-Me2C6H3O)(NMe2)3] (1) and [Ti(2,6-Me2C6H3O)2(NMe2)2] (2) to produce [(NMe2)2(2,6-Me2C6H3O)TiRu(CO)2(Cp)] (3) and [(NMe2)(2,6-Me2C6H3O)2TiRu(CO)2(Cp)] (4), respectively. Both products were characterized spectroscopically, and the structure of 4 was determined by an X-ray diffraction study. Compound 4 crystallizes in the space group P21/n with a = 8.201 (3) {\AA}, b = 18.776 (4) {\AA}, c = 16.739 (6) {\AA}, β = 103.90 (3)°, and V = 2526.29 {\AA}3. Full-matrix least-squares refinement converged at R = 5.6% and Rw= 6.5%. There is a direct, unbridged bond between titanium and ruthenium in 4, with a metal—metal bond length of 2.573 (1) A. Despite steric crowding in 4, this Ru—Ti distance is 0.09 A shorter than the Ru—Ti distance in [(NMe2)3TiRu(CO)2(Cp)], attributed in part to the weaker electron-donor ability of aryloxides.",

author = "Sartain, {William J.} and Selegue, {John P.}",

year = "1989",

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doi = "10.1021/om00111a010",

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number = "9",

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T1 - Early—Late Transition Metal Bonds

T2 - Ruthenium—Titanium Compounds with Aryloxide Ligands

AU - Sartain, William J.

AU - Selegue, John P.

PY - 1989/9/1

Y1 - 1989/9/1

N2 - [RuH(CO)2(Cp)] reacts with [Ti(2,6-Me2C6H3O)(NMe2)3] (1) and [Ti(2,6-Me2C6H3O)2(NMe2)2] (2) to produce [(NMe2)2(2,6-Me2C6H3O)TiRu(CO)2(Cp)] (3) and [(NMe2)(2,6-Me2C6H3O)2TiRu(CO)2(Cp)] (4), respectively. Both products were characterized spectroscopically, and the structure of 4 was determined by an X-ray diffraction study. Compound 4 crystallizes in the space group P21/n with a = 8.201 (3) Å, b = 18.776 (4) Å, c = 16.739 (6) Å, β = 103.90 (3)°, and V = 2526.29 Å3. Full-matrix least-squares refinement converged at R = 5.6% and Rw= 6.5%. There is a direct, unbridged bond between titanium and ruthenium in 4, with a metal—metal bond length of 2.573 (1) A. Despite steric crowding in 4, this Ru—Ti distance is 0.09 A shorter than the Ru—Ti distance in [(NMe2)3TiRu(CO)2(Cp)], attributed in part to the weaker electron-donor ability of aryloxides.

AB - [RuH(CO)2(Cp)] reacts with [Ti(2,6-Me2C6H3O)(NMe2)3] (1) and [Ti(2,6-Me2C6H3O)2(NMe2)2] (2) to produce [(NMe2)2(2,6-Me2C6H3O)TiRu(CO)2(Cp)] (3) and [(NMe2)(2,6-Me2C6H3O)2TiRu(CO)2(Cp)] (4), respectively. Both products were characterized spectroscopically, and the structure of 4 was determined by an X-ray diffraction study. Compound 4 crystallizes in the space group P21/n with a = 8.201 (3) Å, b = 18.776 (4) Å, c = 16.739 (6) Å, β = 103.90 (3)°, and V = 2526.29 Å3. Full-matrix least-squares refinement converged at R = 5.6% and Rw= 6.5%. There is a direct, unbridged bond between titanium and ruthenium in 4, with a metal—metal bond length of 2.573 (1) A. Despite steric crowding in 4, this Ru—Ti distance is 0.09 A shorter than the Ru—Ti distance in [(NMe2)3TiRu(CO)2(Cp)], attributed in part to the weaker electron-donor ability of aryloxides.

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Early—Late Transition Metal Bonds: Ruthenium—Titanium Compounds with Aryloxide Ligands

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