Tin Trihydride as a Ligand in Osmium Complexes

Albertin, Gabriele; Antoniutti, Stefano; Bacchi, Alessia; Bortoluzzi, Marco; Pelizzi, Giancarlo; Zanardo, Gianluigi

doi:10.1021/om0606441

Cited by 27 publications

(37 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…31 The IR spectrum of OsHCl(CO)(PPh 3 ) 3 (1) shows a strong band at 1910 cm −1 attributed to the ν CO of the carbonyl ligand. The spectrum also shows a weak band at 2090 cm −1 , attributed to the ν OsH of the hydride ligand.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Azo Complexes of Osmium(II): Preparation and Reactivity of Organic Azide and Hydrazine Derivatives

et al. 2013

Self Cite

View full text Add to dashboard Cite

show abstract

Section: ■ Results and Discussionmentioning

confidence: 99%

Azo Complexes of Osmium(II): Preparation and Reactivity of Organic Azide and Hydrazine Derivatives

et al. 2013

Self Cite

View full text Add to dashboard Cite

show abstract

“…17 Recently Girolami has described the synthesis of OsHTp(COD) (COD ) 1,5-cycloctadiene), which has also shown to be useful to prepare an array of compounds. 18 19 The OsTp-hydride complexes are particularly rare. They have been stabilized with phosphine co-ligands and formed via κ 2 -TpOs intermediates.…”

Section: Introductionmentioning

confidence: 99%

Preparation, Spectroscopic Characterization, X-ray Structure, and Theoretical Investigation of Hydride−, Dihydrogen−, and Acetone−OsTp Complexes: A Hydridotris(pyrazolyl)borate−Cyclopentadienyl Comparison

et al. 2007

View full text Add to dashboard Cite

Complex OsH 3 Cl(P i Pr 3 ) 2 (1) reacts with KTp (Tp ) hydridotris(pyrazolyl)borate) in tetrahydrofuran at room temperature to give OsH 3 (κ 2 -Tp)(P i Pr 3 ) 2 (2). In toluene at 80 °C, the κ 2 -Tp complex 2 is transformed to the κ 3 -Tp derivative OsH 3 Tp(P i Pr 3 ) (3) in quantitative yield after 7 h. Protonation of 3 with HBF 4 affords the bis(dihydrogen) compound [OsTp(η 2 -H 2 ) 2 (P i Pr 3 )]BF 4 (4). In acetone complex 4 releases the coordinated hydrogen molecules in a sequential manner. At room temperature, the dihydrogensolvate complex [OsTp(η 2 -H 2 )(κ 1 -OCMe 2 )(P i Pr 3 )]BF 4 (5) is formed, while at 56 °C the loss of both hydrogen molecules gives rise to the bis-solvento derivative [OsTp(κ 1 -OCMe 2 ) 2 (P i Pr 3 )]BF 4 (6). Complexes 2-6 have been characterized by X-ray diffraction analysis, and DFT calculations support their formulation. The structures of 3-5 have been compared with those of their Cp counterparts OsH 3 Cp(P i Pr 3 ), [OsH 2 -Cp(η 2 -H 2 )(P i Pr 3 )]BF 4 , and [OsH 2 Cp(κ 1 -OCMe 2 )(P i Pr 3 )]BF 4 . The results show that the Tp ligand avoids piano stool geometries, while it enforces dispositions allowing N-Os-N angles close to 90°such as octahedron and pentagonal bipyramid.

show abstract

“…1 H and 13 C spectra are referred to internal tetramethylsilane; 31 P{ 1 H} chemical shifts are reported with respect to 85% H 3 PO 4 and those of 119 Sn with respect to Sn(CH 3 ) 4 , and in both cases downfield shifts are considered positive. COSY, HMQC, and HMBC NMR experiments were performed with standard programs.…”

Section: Introductionmentioning

confidence: 99%

“…2001, 40, 5465-5467. (g) Albertin, G.;Antoniutti, S.;Bacchi, A.;Bordignon, E.;Giorgi, M. T.;Pelizzi, G. Angew. Chem., Int.…”

Section: Introductionunclassified

See 1 more Smart Citation

Preparation and Reactivity of Stannyl Complexes of Manganese and Rhenium

et al. 2007

Self Cite

View full text Add to dashboard Cite

The trichlorostannyl complexes M(SnCl3)(CO)nP5-n (1−3: M = Mn, Re; P = PPh(OEt)2 (a), P(OEt)3 (b); n = 2, 3) were prepared by allowing chloro MCl(CO)nP5-n compounds to react with an excess of SnCl2·2H2O. Treatment of compounds 1−3 with NaBH4 in ethanol yielded the tin polyhydride derivatives M(SnH3)(CO)nP5-n (4−6). Treatment of 1−3 with MgBrMe gave the trimethylstannyl complexes M(SnMe3)(CO)nP5-n (7−9), and the reaction of 1−3 with MgBr(C≡CH) yielded the trialkynylstannyl derivatives M[Sn(C≡CH)3](CO)nP5-n (10, 11). The alkynylstannyl complexes M[Sn(C≡CR)3](CO)nP5-n (12−14: R = p-tolyl) were also prepared by allowing M(SnCl3)(CO)nP5-n compounds to react with Li+[C≡CR]- in thf. The complexes were characterized by spectroscopy and by X-ray crystal structure determinations of 4a, 6b, and 9b. Reaction of the tin trihydride complexes Re(SnH3)(CO)2P3 (6) with CO2 (1 atm) led to the binuclear OH-bridging bis(formate) derivatives [Re{Sn[OC(H)=O]2(μ-OH)}(CO)2P3]2 (15). A reaction path for the formation of 15, involving the tin hydride bis(formate) intermediate Re[SnH{OC(H)=O}2](CO)2P3, is discussed. The X-ray crystal structure of 15b is reported

show abstract

Tin Trihydride as a Ligand in Osmium Complexes

Cited by 27 publications

References 14 publications

Azo Complexes of Osmium(II): Preparation and Reactivity of Organic Azide and Hydrazine Derivatives

Azo Complexes of Osmium(II): Preparation and Reactivity of Organic Azide and Hydrazine Derivatives

Preparation, Spectroscopic Characterization, X-ray Structure, and Theoretical Investigation of Hydride−, Dihydrogen−, and Acetone−OsTp Complexes: A Hydridotris(pyrazolyl)borate−Cyclopentadienyl Comparison

Preparation and Reactivity of Stannyl Complexes of Manganese and Rhenium

Contact Info

Product

Resources

About