Synthesis and characterization of low valent vanadium thiolate complexes

Andrew D. Sutton; James C. Fettinger; Brian D. Rekken; Philip P. Power

doi:10.1016/j.poly.2008.04.039

Synthesis and characterization of low valent vanadium thiolate complexes

Andrew D. Sutton, James C. Fettinger, Brian D. Rekken, Philip P. Power

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

11 Scopus citations

Abstract

The reaction of the bulky lithium terphenyl thiolate LiSAr′ (Ar^′ = C₆ H₃ - 2, 6 - (C₆ H₃ - 2, 6 -Pr₂ⁱ)₂) with VI₂(THF)₂ in THF resulted in the formation of two new V(II) and V(III) thiolate complexes. The addition of one equivalent of LiSAr′ to VI₂(THF)₄ led to the isolation of the dimeric V(II) species {V(μ-SAr′)I}₂ (2); a rare example of a structurally characterized V(II) thiolate. The thiolate ligands bridge the two vanadium centers, which are also bonded to a terminal iodide. In addition, there is an η⁶-interaction between a flanking aryl ring from a terphenyl substituent with each metal. The attempted preparation of the vanadium dithiolate V(SAr′)₂ by reaction of VI₂(THF)₂ with two equivalents of LiSAr′ led to disproportionation which resulted in the isolation of the V(III) product V(SAr′)₂I (3) in which the vanadium center is coordinated by two sulfurs, an iodine, and a weaker interaction to a flanking aryl ring of the terphenyl group.

Original language	English
Pages (from-to)	2337-2340
Number of pages	4
Journal	Polyhedron
Volume	27
Issue number	11
DOIs	https://doi.org/10.1016/j.poly.2008.04.039
State	Published - Aug 4 2008
Externally published	Yes

Funding

We would like to thank Dr. Eric Rivard for assistance in the magnetic measurements and useful discussions, and the Petroleum Research Fund administered by the American Chemical Society and the National Science Foundation.

Funders	Funder number
National Science Foundation
American Chemical Society
American Chemical Society Petroleum Research Fund

Keywords

Terphenyl
Thiolate
Vanadium

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10.1016/j.poly.2008.04.039

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title = "Synthesis and characterization of low valent vanadium thiolate complexes",

abstract = "The reaction of the bulky lithium terphenyl thiolate LiSAr′ (Ar′ = C6 H3 - 2, 6 - (C6 H3 - 2, 6 -Pr2i)2) with VI2(THF)2 in THF resulted in the formation of two new V(II) and V(III) thiolate complexes. The addition of one equivalent of LiSAr′ to VI2(THF)4 led to the isolation of the dimeric V(II) species {V(μ-SAr′)I}2 (2); a rare example of a structurally characterized V(II) thiolate. The thiolate ligands bridge the two vanadium centers, which are also bonded to a terminal iodide. In addition, there is an η6-interaction between a flanking aryl ring from a terphenyl substituent with each metal. The attempted preparation of the vanadium dithiolate V(SAr′)2 by reaction of VI2(THF)2 with two equivalents of LiSAr′ led to disproportionation which resulted in the isolation of the V(III) product V(SAr′)2I (3) in which the vanadium center is coordinated by two sulfurs, an iodine, and a weaker interaction to a flanking aryl ring of the terphenyl group.",

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author = "Sutton, {Andrew D.} and Fettinger, {James C.} and Rekken, {Brian D.} and Power, {Philip P.}",

year = "2008",

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doi = "10.1016/j.poly.2008.04.039",

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T1 - Synthesis and characterization of low valent vanadium thiolate complexes

AU - Sutton, Andrew D.

AU - Fettinger, James C.

AU - Rekken, Brian D.

AU - Power, Philip P.

PY - 2008/8/4

Y1 - 2008/8/4

N2 - The reaction of the bulky lithium terphenyl thiolate LiSAr′ (Ar′ = C6 H3 - 2, 6 - (C6 H3 - 2, 6 -Pr2i)2) with VI2(THF)2 in THF resulted in the formation of two new V(II) and V(III) thiolate complexes. The addition of one equivalent of LiSAr′ to VI2(THF)4 led to the isolation of the dimeric V(II) species {V(μ-SAr′)I}2 (2); a rare example of a structurally characterized V(II) thiolate. The thiolate ligands bridge the two vanadium centers, which are also bonded to a terminal iodide. In addition, there is an η6-interaction between a flanking aryl ring from a terphenyl substituent with each metal. The attempted preparation of the vanadium dithiolate V(SAr′)2 by reaction of VI2(THF)2 with two equivalents of LiSAr′ led to disproportionation which resulted in the isolation of the V(III) product V(SAr′)2I (3) in which the vanadium center is coordinated by two sulfurs, an iodine, and a weaker interaction to a flanking aryl ring of the terphenyl group.

AB - The reaction of the bulky lithium terphenyl thiolate LiSAr′ (Ar′ = C6 H3 - 2, 6 - (C6 H3 - 2, 6 -Pr2i)2) with VI2(THF)2 in THF resulted in the formation of two new V(II) and V(III) thiolate complexes. The addition of one equivalent of LiSAr′ to VI2(THF)4 led to the isolation of the dimeric V(II) species {V(μ-SAr′)I}2 (2); a rare example of a structurally characterized V(II) thiolate. The thiolate ligands bridge the two vanadium centers, which are also bonded to a terminal iodide. In addition, there is an η6-interaction between a flanking aryl ring from a terphenyl substituent with each metal. The attempted preparation of the vanadium dithiolate V(SAr′)2 by reaction of VI2(THF)2 with two equivalents of LiSAr′ led to disproportionation which resulted in the isolation of the V(III) product V(SAr′)2I (3) in which the vanadium center is coordinated by two sulfurs, an iodine, and a weaker interaction to a flanking aryl ring of the terphenyl group.

KW - Terphenyl

KW - Thiolate

KW - Vanadium

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DO - 10.1016/j.poly.2008.04.039

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SP - 2337

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JO - Polyhedron

JF - Polyhedron

IS - 11

ER -

Synthesis and characterization of low valent vanadium thiolate complexes

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