Dinitrogen activation by titanium sandwich complexes

Tamara E. Hanna; Emil Lobkovsky; Paul J. Chirik

doi:10.1021/ja045884r

Dinitrogen activation by titanium sandwich complexes

Tamara E. Hanna, Emil Lobkovsky, Paul J. Chirik

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Abstract

The activation of dinitrogen by titanium sandwich complexes of the general form (η⁵-C₅Me₄R)₂Ti (R = CHMe₂, CMe₃, SiMe₃) has been systematically investigated. Low-temperature, in situ, solution infrared spectroscopy has allowed detection of monomeric bis-dinitrogen complexes of titanium that are isostructural with more familiar dicarbonyl derivatives. One example, (η⁵-C₅Me₄CHMe₂)₂Ti(N₂)₂, has alsobeen characterized by X-ray diffraction and reveals weakly activated dinitrogen ligands. From the solution IR data, the relative azophilicity of the titanium sandwich complexes has been established and increases with smaller cyclopentadienyl substituents.

Original language	English (US)
Pages (from-to)	14688-14689
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	126
Issue number	45
DOIs	https://doi.org/10.1021/ja045884r
State	Published - Nov 17 2004
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Chemistry
Biochemistry
Catalysis
Colloid and Surface Chemistry

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title = "Dinitrogen activation by titanium sandwich complexes",

abstract = "The activation of dinitrogen by titanium sandwich complexes of the general form (η5-C5Me4R)2Ti (R = CHMe2, CMe3, SiMe3) has been systematically investigated. Low-temperature, in situ, solution infrared spectroscopy has allowed detection of monomeric bis-dinitrogen complexes of titanium that are isostructural with more familiar dicarbonyl derivatives. One example, (η5-C5Me4CHMe2)2Ti(N2)2, has alsobeen characterized by X-ray diffraction and reveals weakly activated dinitrogen ligands. From the solution IR data, the relative azophilicity of the titanium sandwich complexes has been established and increases with smaller cyclopentadienyl substituents.",

author = "Hanna, {Tamara E.} and Emil Lobkovsky and Chirik, {Paul J.}",

year = "2004",

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doi = "10.1021/ja045884r",

language = "English (US)",

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journal = "Journal of the American Chemical Society",

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T1 - Dinitrogen activation by titanium sandwich complexes

AU - Hanna, Tamara E.

AU - Lobkovsky, Emil

AU - Chirik, Paul J.

PY - 2004/11/17

Y1 - 2004/11/17

N2 - The activation of dinitrogen by titanium sandwich complexes of the general form (η5-C5Me4R)2Ti (R = CHMe2, CMe3, SiMe3) has been systematically investigated. Low-temperature, in situ, solution infrared spectroscopy has allowed detection of monomeric bis-dinitrogen complexes of titanium that are isostructural with more familiar dicarbonyl derivatives. One example, (η5-C5Me4CHMe2)2Ti(N2)2, has alsobeen characterized by X-ray diffraction and reveals weakly activated dinitrogen ligands. From the solution IR data, the relative azophilicity of the titanium sandwich complexes has been established and increases with smaller cyclopentadienyl substituents.

AB - The activation of dinitrogen by titanium sandwich complexes of the general form (η5-C5Me4R)2Ti (R = CHMe2, CMe3, SiMe3) has been systematically investigated. Low-temperature, in situ, solution infrared spectroscopy has allowed detection of monomeric bis-dinitrogen complexes of titanium that are isostructural with more familiar dicarbonyl derivatives. One example, (η5-C5Me4CHMe2)2Ti(N2)2, has alsobeen characterized by X-ray diffraction and reveals weakly activated dinitrogen ligands. From the solution IR data, the relative azophilicity of the titanium sandwich complexes has been established and increases with smaller cyclopentadienyl substituents.

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JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 45

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Dinitrogen activation by titanium sandwich complexes

Abstract

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