New rhenium-tin cluster adds palladium phosphine groups across Re-Sn bonds

Richard D. Adams; Burjor Captain; Mikael Johansson; Jack L. Smith

doi:10.1021/ja0443169

New rhenium-tin cluster adds palladium phosphine groups across Re-Sn bonds

Richard D. Adams, Burjor Captain, Mikael Johansson, Jack L. Smith

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

39 Scopus citations

Abstract

The new rhenium-tin complex Re₂(CO)₈(μ-SnPh₂)₂, 1 was obtained in 52% yield from the reaction of Re₂(CO)₈(μ-H)[μ-C(H)C(H)Bu] with Ph₃SnH. Compound 1 contains two SnPh₂ groups bridging a long Re-Re single bond, Re-Re = 3.1971(4) Å [3.1902(4) Å], Re-Sn = 2.7429(4) Å [2.7445(4) Å], and 2.7675(4) [2.7682(5) Å]. A bis-Pd(PBu^t₃) adduct of 1, Pd₂Re₂(CO)₈(μ-SnPh₂)₂(PBu^t₃)₂, 2 was obtained from the reaction of 1 with Pd(PBu^t₃)₂. Compound 2 contains Pd(PBu^t₃) groups bridging two of its four Re-Sn bonds. The Re-Re bond and the unbridged Re-Sn bonds in 2 are significantly longer than those in 1, 3.245(1) Å and 2.8167(14) Å, respectively. Fenske-Hall molecular orbital calculations on 1 and 2 have been performed to explain the metal-metal bonding in these unusual mixed-metal polynuclear metal complexes.

Original language	English (US)
Pages (from-to)	488-489
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	127
Issue number	2
DOIs	https://doi.org/10.1021/ja0443169
State	Published - Jan 19 2005
Externally published	Yes

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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title = "New rhenium-tin cluster adds palladium phosphine groups across Re-Sn bonds",

abstract = "The new rhenium-tin complex Re2(CO)8(μ-SnPh2)2, 1 was obtained in 52% yield from the reaction of Re2(CO)8(μ-H)[μ-C(H)C(H)Bu] with Ph3SnH. Compound 1 contains two SnPh2 groups bridging a long Re-Re single bond, Re-Re = 3.1971(4) {\AA} [3.1902(4) {\AA}], Re-Sn = 2.7429(4) {\AA} [2.7445(4) {\AA}], and 2.7675(4) [2.7682(5) {\AA}]. A bis-Pd(PBut3) adduct of 1, Pd2Re2(CO)8(μ-SnPh2)2(PBut3)2, 2 was obtained from the reaction of 1 with Pd(PBut3)2. Compound 2 contains Pd(PBut3) groups bridging two of its four Re-Sn bonds. The Re-Re bond and the unbridged Re-Sn bonds in 2 are significantly longer than those in 1, 3.245(1) {\AA} and 2.8167(14) {\AA}, respectively. Fenske-Hall molecular orbital calculations on 1 and 2 have been performed to explain the metal-metal bonding in these unusual mixed-metal polynuclear metal complexes.",

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doi = "10.1021/ja0443169",

language = "English (US)",

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AU - Adams, Richard D.

AU - Captain, Burjor

AU - Johansson, Mikael

AU - Smith, Jack L.

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Y1 - 2005/1/19

N2 - The new rhenium-tin complex Re2(CO)8(μ-SnPh2)2, 1 was obtained in 52% yield from the reaction of Re2(CO)8(μ-H)[μ-C(H)C(H)Bu] with Ph3SnH. Compound 1 contains two SnPh2 groups bridging a long Re-Re single bond, Re-Re = 3.1971(4) Å [3.1902(4) Å], Re-Sn = 2.7429(4) Å [2.7445(4) Å], and 2.7675(4) [2.7682(5) Å]. A bis-Pd(PBut3) adduct of 1, Pd2Re2(CO)8(μ-SnPh2)2(PBut3)2, 2 was obtained from the reaction of 1 with Pd(PBut3)2. Compound 2 contains Pd(PBut3) groups bridging two of its four Re-Sn bonds. The Re-Re bond and the unbridged Re-Sn bonds in 2 are significantly longer than those in 1, 3.245(1) Å and 2.8167(14) Å, respectively. Fenske-Hall molecular orbital calculations on 1 and 2 have been performed to explain the metal-metal bonding in these unusual mixed-metal polynuclear metal complexes.

AB - The new rhenium-tin complex Re2(CO)8(μ-SnPh2)2, 1 was obtained in 52% yield from the reaction of Re2(CO)8(μ-H)[μ-C(H)C(H)Bu] with Ph3SnH. Compound 1 contains two SnPh2 groups bridging a long Re-Re single bond, Re-Re = 3.1971(4) Å [3.1902(4) Å], Re-Sn = 2.7429(4) Å [2.7445(4) Å], and 2.7675(4) [2.7682(5) Å]. A bis-Pd(PBut3) adduct of 1, Pd2Re2(CO)8(μ-SnPh2)2(PBut3)2, 2 was obtained from the reaction of 1 with Pd(PBut3)2. Compound 2 contains Pd(PBut3) groups bridging two of its four Re-Sn bonds. The Re-Re bond and the unbridged Re-Sn bonds in 2 are significantly longer than those in 1, 3.245(1) Å and 2.8167(14) Å, respectively. Fenske-Hall molecular orbital calculations on 1 and 2 have been performed to explain the metal-metal bonding in these unusual mixed-metal polynuclear metal complexes.

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New rhenium-tin cluster adds palladium phosphine groups across Re-Sn bonds

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