Cluster fragmentation and facile cleavage of phenyl groups from the SnPh 3 ligand in reactions of Os 3(CO) 11(SnPh 3)(μ-H) with CO and HSnPh 3

Richard D. Adams; Burjor Captain; Lei Zhu

doi:10.1021/om0603262

Cluster fragmentation and facile cleavage of phenyl groups from the SnPh ₃ ligand in reactions of Os ₃(CO) ₁₁(SnPh ₃)(μ-H) with CO and HSnPh ₃

Richard D. Adams, Burjor Captain, Lei Zhu

Research output: Contribution to journal › Article

23 Scopus citations

Abstract

Two new cluster complexes, Os ₃(CO) ₁₂(Ph)(μ ₃-SnPh), 8 (35% yield), and Os ₄(CO) ₁₆(μ ₄-Sn), 9 (10% yield), were formed when the complex Os ₃(CO) ₁₁(SnPh ₃)(μ-H), 6, was heated to reflux in toluene solvent under a CO atmosphere. Compound 8 was transformed to 9 in 28% yield when a solution in octane solvent was heated to reflux under a CO atmosphere. Biphenyl was a coproduct in this reaction. Compound 8 contains three osmium atoms with a triply bridging SnPh group. The triosmium cluster has opened and there is only one Os-Os bond between the three osmium atoms. Compound 9 contains two Os ₂(CO) ₈ groups held together by a central quadruply bridging tin atom, giving an overall bow-tie structure for the five metal atoms. Two other new compounds, Os ₂(CO) ₆(μ-SnPh ₂) ₂(SnPh ₃) ₂, 10, and HOs(CO) ₄(SnPh ₃), 11, were formed in 51% and 20% yields, respectively, from the reaction of 6 with HSnPh ₃. Compound 10 contains only two osmium atoms linked by an Os-Os bond and two bridging SnPh ₂ ligands. Each osmium atom also contains one terminal SnPh ₃ ligand. Compound 11 contains only one osmium atom. It has one SnPh ₃ ligartd and a hydrido ligand in cis position in the six-coordinate pseudo-octahedral complex. All four new compounds were characterized by single-crystal X-ray diffraction analysis.

Original language	English (US)
Pages (from-to)	4183-4187
Number of pages	5
Journal	Organometallics
Volume	25
Issue number	17
DOIs	https://doi.org/10.1021/om0603262
State	Published - Aug 14 2006
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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Adams, R. D., Captain, B., & Zhu, L. (2006). Cluster fragmentation and facile cleavage of phenyl groups from the SnPh ₃ ligand in reactions of Os ₃(CO) ₁₁(SnPh ₃)(μ-H) with CO and HSnPh ₃ Organometallics, 25(17), 4183-4187. https://doi.org/10.1021/om0603262

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title = "Cluster fragmentation and facile cleavage of phenyl groups from the SnPh 3 ligand in reactions of Os 3(CO) 11(SnPh 3)(μ-H) with CO and HSnPh 3 ",

abstract = "Two new cluster complexes, Os 3(CO) 12(Ph)(μ 3-SnPh), 8 (35% yield), and Os 4(CO) 16(μ 4-Sn), 9 (10% yield), were formed when the complex Os 3(CO) 11(SnPh 3)(μ-H), 6, was heated to reflux in toluene solvent under a CO atmosphere. Compound 8 was transformed to 9 in 28% yield when a solution in octane solvent was heated to reflux under a CO atmosphere. Biphenyl was a coproduct in this reaction. Compound 8 contains three osmium atoms with a triply bridging SnPh group. The triosmium cluster has opened and there is only one Os-Os bond between the three osmium atoms. Compound 9 contains two Os 2(CO) 8 groups held together by a central quadruply bridging tin atom, giving an overall bow-tie structure for the five metal atoms. Two other new compounds, Os 2(CO) 6(μ-SnPh 2) 2(SnPh 3) 2, 10, and HOs(CO) 4(SnPh 3), 11, were formed in 51% and 20% yields, respectively, from the reaction of 6 with HSnPh 3. Compound 10 contains only two osmium atoms linked by an Os-Os bond and two bridging SnPh 2 ligands. Each osmium atom also contains one terminal SnPh 3 ligand. Compound 11 contains only one osmium atom. It has one SnPh 3 ligartd and a hydrido ligand in cis position in the six-coordinate pseudo-octahedral complex. All four new compounds were characterized by single-crystal X-ray diffraction analysis.",

author = "Adams, {Richard D.} and Burjor Captain and Lei Zhu",

year = "2006",

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doi = "10.1021/om0603262",

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T1 - Cluster fragmentation and facile cleavage of phenyl groups from the SnPh 3 ligand in reactions of Os 3(CO) 11(SnPh 3)(μ-H) with CO and HSnPh 3

AU - Adams, Richard D.

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AU - Zhu, Lei

PY - 2006/8/14

Y1 - 2006/8/14

N2 - Two new cluster complexes, Os 3(CO) 12(Ph)(μ 3-SnPh), 8 (35% yield), and Os 4(CO) 16(μ 4-Sn), 9 (10% yield), were formed when the complex Os 3(CO) 11(SnPh 3)(μ-H), 6, was heated to reflux in toluene solvent under a CO atmosphere. Compound 8 was transformed to 9 in 28% yield when a solution in octane solvent was heated to reflux under a CO atmosphere. Biphenyl was a coproduct in this reaction. Compound 8 contains three osmium atoms with a triply bridging SnPh group. The triosmium cluster has opened and there is only one Os-Os bond between the three osmium atoms. Compound 9 contains two Os 2(CO) 8 groups held together by a central quadruply bridging tin atom, giving an overall bow-tie structure for the five metal atoms. Two other new compounds, Os 2(CO) 6(μ-SnPh 2) 2(SnPh 3) 2, 10, and HOs(CO) 4(SnPh 3), 11, were formed in 51% and 20% yields, respectively, from the reaction of 6 with HSnPh 3. Compound 10 contains only two osmium atoms linked by an Os-Os bond and two bridging SnPh 2 ligands. Each osmium atom also contains one terminal SnPh 3 ligand. Compound 11 contains only one osmium atom. It has one SnPh 3 ligartd and a hydrido ligand in cis position in the six-coordinate pseudo-octahedral complex. All four new compounds were characterized by single-crystal X-ray diffraction analysis.

AB - Two new cluster complexes, Os 3(CO) 12(Ph)(μ 3-SnPh), 8 (35% yield), and Os 4(CO) 16(μ 4-Sn), 9 (10% yield), were formed when the complex Os 3(CO) 11(SnPh 3)(μ-H), 6, was heated to reflux in toluene solvent under a CO atmosphere. Compound 8 was transformed to 9 in 28% yield when a solution in octane solvent was heated to reflux under a CO atmosphere. Biphenyl was a coproduct in this reaction. Compound 8 contains three osmium atoms with a triply bridging SnPh group. The triosmium cluster has opened and there is only one Os-Os bond between the three osmium atoms. Compound 9 contains two Os 2(CO) 8 groups held together by a central quadruply bridging tin atom, giving an overall bow-tie structure for the five metal atoms. Two other new compounds, Os 2(CO) 6(μ-SnPh 2) 2(SnPh 3) 2, 10, and HOs(CO) 4(SnPh 3), 11, were formed in 51% and 20% yields, respectively, from the reaction of 6 with HSnPh 3. Compound 10 contains only two osmium atoms linked by an Os-Os bond and two bridging SnPh 2 ligands. Each osmium atom also contains one terminal SnPh 3 ligand. Compound 11 contains only one osmium atom. It has one SnPh 3 ligartd and a hydrido ligand in cis position in the six-coordinate pseudo-octahedral complex. All four new compounds were characterized by single-crystal X-ray diffraction analysis.

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