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 |
|---|---|
| Pages (from-to) | 4183-4187 |
| Number of pages | 5 |
| Journal | Organometallics |
| Volume | 25 |
| Issue number | 17 |
| DOIs | |
| State | Published - Aug 14 2006 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Inorganic Chemistry
- Organic Chemistry
Cite this
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 . / Adams, Richard D.; Captain, Burjor; Zhu, Lei.
In: Organometallics, Vol. 25, No. 17, 14.08.2006, p. 4183-4187.Research output: Contribution to journal › Article
}
TY - JOUR
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.
AU - Captain, Burjor
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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U2 - 10.1021/om0603262
DO - 10.1021/om0603262
M3 - Article
AN - SCOPUS:33748300954
VL - 25
SP - 4183
EP - 4187
JO - Organometallics
JF - Organometallics
SN - 0276-7333
IS - 17
ER -