Synthesis, characterization and molecular structures of allenylidene, vinylidene-alkylidene complexes containing [CpOs(PPh3)2]+ fragment

R. Lalrempuia; Hemant Yennawar; Yurij A. Mozharivskyj; Mohan Rao Kollipara

doi:10.1016/j.jorganchem.2003.11.004

Synthesis, characterization and molecular structures of allenylidene, vinylidene-alkylidene complexes containing [CpOs(PPh₃)₂]⁺ fragment

R. Lalrempuia, Hemant Yennawar, Yurij A. Mozharivskyj, Mohan Rao Kollipara

Biochemistry & Molecular Biology

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

19 Scopus citations

Abstract

The reaction of [CpOs(PPh₃)₂Br] with diphenylpropargylic alcohol HC≡CCPh₂(OH) in the presence of ammonium hexafluorophosphate leads to the formation of cationic osmiumallenylidene complex [CpOs(=C=C=CPh₂) (PPh₃)₂][PF₆] (1), but when the dimethylpropargylic alcohol HC≡CCMe₂(OH) was used as a substrate, a dicationic diosmium vinylidene-alkylidene complex of the formula [(CpOs)₂(μ-C₁₀H₁₂) (PPh₃)₄][PF₆]₂ (2) was obtained. The structures of these complexes have been determined by X-ray diffraction. Complex 1 crystallizes in monoclinic space group P21/c with a=13.4083(6) Å, b=19.5700(9) Å, c=20.3806(9) Å and β=100.3620(10)°. Complex 2 crystallizes in triclinic space group P1̄ with a=13.0396(11) Å, b=15.2420(13) Å, c=21.6406(19) Å and α=72.5290(10)°, β=75.1960(10)°, γ=85.6360(10)°.

Original language	English (US)
Pages (from-to)	539-543
Number of pages	5
Journal	Journal of Organometallic Chemistry
Volume	689
Issue number	3
DOIs	https://doi.org/10.1016/j.jorganchem.2003.11.004
State	Published - Feb 9 2004

All Science Journal Classification (ASJC) codes

Biochemistry
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/j.jorganchem.2003.11.004

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@article{4e25de59eb8a46d7af50e34cea0f93e3,

title = "Synthesis, characterization and molecular structures of allenylidene, vinylidene-alkylidene complexes containing [CpOs(PPh3)2]+ fragment",

abstract = "The reaction of [CpOs(PPh3)2Br] with diphenylpropargylic alcohol HC≡CCPh2(OH) in the presence of ammonium hexafluorophosphate leads to the formation of cationic osmiumallenylidene complex [CpOs(=C=C=CPh2) (PPh3)2][PF6] (1), but when the dimethylpropargylic alcohol HC≡CCMe2(OH) was used as a substrate, a dicationic diosmium vinylidene-alkylidene complex of the formula [(CpOs)2(μ-C10H12) (PPh3)4][PF6]2 (2) was obtained. The structures of these complexes have been determined by X-ray diffraction. Complex 1 crystallizes in monoclinic space group P21/c with a=13.4083(6) {\AA}, b=19.5700(9) {\AA}, c=20.3806(9) {\AA} and β=100.3620(10)°. Complex 2 crystallizes in triclinic space group P{\=1} with a=13.0396(11) {\AA}, b=15.2420(13) {\AA}, c=21.6406(19) {\AA} and α=72.5290(10)°, β=75.1960(10)°, γ=85.6360(10)°.",

author = "R. Lalrempuia and Hemant Yennawar and Mozharivskyj, {Yurij A.} and Kollipara, {Mohan Rao}",

note = "Funding Information: KMR thanks the DST (DST SERC: SP/S1/F-22/98), New Delhi for financial support. RL thanks the UGC for financial support in the form of DRS program.",

year = "2004",

month = feb,

day = "9",

doi = "10.1016/j.jorganchem.2003.11.004",

language = "English (US)",

volume = "689",

pages = "539--543",

journal = "Journal of Organometallic Chemistry",

issn = "0022-328X",

publisher = "Elsevier B.V.",

number = "3",

}

TY - JOUR

T1 - Synthesis, characterization and molecular structures of allenylidene, vinylidene-alkylidene complexes containing [CpOs(PPh3)2]+ fragment

AU - Lalrempuia, R.

AU - Yennawar, Hemant

AU - Mozharivskyj, Yurij A.

AU - Kollipara, Mohan Rao

N1 - Funding Information: KMR thanks the DST (DST SERC: SP/S1/F-22/98), New Delhi for financial support. RL thanks the UGC for financial support in the form of DRS program.

PY - 2004/2/9

Y1 - 2004/2/9

N2 - The reaction of [CpOs(PPh3)2Br] with diphenylpropargylic alcohol HC≡CCPh2(OH) in the presence of ammonium hexafluorophosphate leads to the formation of cationic osmiumallenylidene complex [CpOs(=C=C=CPh2) (PPh3)2][PF6] (1), but when the dimethylpropargylic alcohol HC≡CCMe2(OH) was used as a substrate, a dicationic diosmium vinylidene-alkylidene complex of the formula [(CpOs)2(μ-C10H12) (PPh3)4][PF6]2 (2) was obtained. The structures of these complexes have been determined by X-ray diffraction. Complex 1 crystallizes in monoclinic space group P21/c with a=13.4083(6) Å, b=19.5700(9) Å, c=20.3806(9) Å and β=100.3620(10)°. Complex 2 crystallizes in triclinic space group P1̄ with a=13.0396(11) Å, b=15.2420(13) Å, c=21.6406(19) Å and α=72.5290(10)°, β=75.1960(10)°, γ=85.6360(10)°.

AB - The reaction of [CpOs(PPh3)2Br] with diphenylpropargylic alcohol HC≡CCPh2(OH) in the presence of ammonium hexafluorophosphate leads to the formation of cationic osmiumallenylidene complex [CpOs(=C=C=CPh2) (PPh3)2][PF6] (1), but when the dimethylpropargylic alcohol HC≡CCMe2(OH) was used as a substrate, a dicationic diosmium vinylidene-alkylidene complex of the formula [(CpOs)2(μ-C10H12) (PPh3)4][PF6]2 (2) was obtained. The structures of these complexes have been determined by X-ray diffraction. Complex 1 crystallizes in monoclinic space group P21/c with a=13.4083(6) Å, b=19.5700(9) Å, c=20.3806(9) Å and β=100.3620(10)°. Complex 2 crystallizes in triclinic space group P1̄ with a=13.0396(11) Å, b=15.2420(13) Å, c=21.6406(19) Å and α=72.5290(10)°, β=75.1960(10)°, γ=85.6360(10)°.

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U2 - 10.1016/j.jorganchem.2003.11.004

DO - 10.1016/j.jorganchem.2003.11.004

M3 - Article

AN - SCOPUS:0742288796

SN - 0022-328X

VL - 689

SP - 539

EP - 543

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

IS - 3

ER -

Synthesis, characterization and molecular structures of allenylidene, vinylidene-alkylidene complexes containing [CpOs(PPh₃)₂]⁺ fragment

Abstract

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