η4-Bonding in (Arene)ruthenium Complexes of Octamethylnaphthalene

John W. Hull; Wayne L. Gladfelter

doi:10.1021/om00082a018

η⁴-Bonding in (Arene)ruthenium Complexes of Octamethylnaphthalene

John W. Hull
, Wayne L. Gladfelter

Chemistry (Twin Cities)

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

102 Scopus citations

Abstract

The reaction of [RuCl₂(arene)]₂ (arene = p-cymene, benzene, mesitylene, prehnitene, hexamethylbenzene, 1,3,5-triethylbenzene, and 1,3,5-triisopropylbenzene) with octamethylnaphthalene (OMN) under three sets of conditions leads to the bis(arene) complexes [Ru(OMN)(arene)]²⁺. These 18-electron cations containing two η⁶-rings can be easily reduced with sodium amalgam to complexes with the formula Ru(OMN)(arene). The neutral complexes contain a η⁶-arene and a η⁴-OMN ring as shown by a single-crystal X-ray crystallographic analysis of Ru(OMN)(C6Me6) [P2_l/n space group, Z = 8, a = 19.768 (6) Å, b = 14.524 (3) Å, c = 19.676 (6) Å, β = 117.13 (2)°]. Protonation of the complexed OMN ring in Ru(OMN)(C₆H₆) yields an isolable cyclohexadienyl species, [Ru(C₁₀Me₈H)(C₆H₆)]⁺, while reaction of Ru(OMN)(C₆H₆) with Cr-(CO)₃(CH₃CN)₃ produces the binuclear compound (C₆H₆)Ru(μ-OMN)Cr(CO)₃. The reactivity of the neutral complexes with hydrogen is discussed.

Original language	English (US)
Pages (from-to)	605-613
Number of pages	9
Journal	Organometallics
Volume	3
Issue number	4
DOIs	https://doi.org/10.1021/om00082a018
State	Published - Jan 1984

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@article{891e6834e99c4cc9af246f350939ec06,

title = "η4-Bonding in (Arene)ruthenium Complexes of Octamethylnaphthalene",

abstract = "The reaction of [RuCl2(arene)]2 (arene = p-cymene, benzene, mesitylene, prehnitene, hexamethylbenzene, 1,3,5-triethylbenzene, and 1,3,5-triisopropylbenzene) with octamethylnaphthalene (OMN) under three sets of conditions leads to the bis(arene) complexes [Ru(OMN)(arene)]2+. These 18-electron cations containing two η6-rings can be easily reduced with sodium amalgam to complexes with the formula Ru(OMN)(arene). The neutral complexes contain a η6-arene and a η4-OMN ring as shown by a single-crystal X-ray crystallographic analysis of Ru(OMN)(C6Me6) [P2l/n space group, Z = 8, a = 19.768 (6) {\AA}, b = 14.524 (3) {\AA}, c = 19.676 (6) {\AA}, β = 117.13 (2)°]. Protonation of the complexed OMN ring in Ru(OMN)(C6H6) yields an isolable cyclohexadienyl species, [Ru(C10Me8H)(C6H6)]+, while reaction of Ru(OMN)(C6H6) with Cr-(CO)3(CH3CN)3 produces the binuclear compound (C6H6)Ru(μ-OMN)Cr(CO)3. The reactivity of the neutral complexes with hydrogen is discussed.",

author = "Hull, \{John W.\} and Gladfelter, \{Wayne L.\}",

year = "1984",

month = jan,

doi = "10.1021/om00082a018",

language = "English (US)",

volume = "3",

pages = "605--613",

journal = "Organometallics",

issn = "0276-7333",

publisher = "American Chemical Society",

number = "4",

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T1 - η4-Bonding in (Arene)ruthenium Complexes of Octamethylnaphthalene

AU - Hull, John W.

AU - Gladfelter, Wayne L.

PY - 1984/1

Y1 - 1984/1

N2 - The reaction of [RuCl2(arene)]2 (arene = p-cymene, benzene, mesitylene, prehnitene, hexamethylbenzene, 1,3,5-triethylbenzene, and 1,3,5-triisopropylbenzene) with octamethylnaphthalene (OMN) under three sets of conditions leads to the bis(arene) complexes [Ru(OMN)(arene)]2+. These 18-electron cations containing two η6-rings can be easily reduced with sodium amalgam to complexes with the formula Ru(OMN)(arene). The neutral complexes contain a η6-arene and a η4-OMN ring as shown by a single-crystal X-ray crystallographic analysis of Ru(OMN)(C6Me6) [P2l/n space group, Z = 8, a = 19.768 (6) Å, b = 14.524 (3) Å, c = 19.676 (6) Å, β = 117.13 (2)°]. Protonation of the complexed OMN ring in Ru(OMN)(C6H6) yields an isolable cyclohexadienyl species, [Ru(C10Me8H)(C6H6)]+, while reaction of Ru(OMN)(C6H6) with Cr-(CO)3(CH3CN)3 produces the binuclear compound (C6H6)Ru(μ-OMN)Cr(CO)3. The reactivity of the neutral complexes with hydrogen is discussed.

AB - The reaction of [RuCl2(arene)]2 (arene = p-cymene, benzene, mesitylene, prehnitene, hexamethylbenzene, 1,3,5-triethylbenzene, and 1,3,5-triisopropylbenzene) with octamethylnaphthalene (OMN) under three sets of conditions leads to the bis(arene) complexes [Ru(OMN)(arene)]2+. These 18-electron cations containing two η6-rings can be easily reduced with sodium amalgam to complexes with the formula Ru(OMN)(arene). The neutral complexes contain a η6-arene and a η4-OMN ring as shown by a single-crystal X-ray crystallographic analysis of Ru(OMN)(C6Me6) [P2l/n space group, Z = 8, a = 19.768 (6) Å, b = 14.524 (3) Å, c = 19.676 (6) Å, β = 117.13 (2)°]. Protonation of the complexed OMN ring in Ru(OMN)(C6H6) yields an isolable cyclohexadienyl species, [Ru(C10Me8H)(C6H6)]+, while reaction of Ru(OMN)(C6H6) with Cr-(CO)3(CH3CN)3 produces the binuclear compound (C6H6)Ru(μ-OMN)Cr(CO)3. The reactivity of the neutral complexes with hydrogen is discussed.

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U2 - 10.1021/om00082a018

DO - 10.1021/om00082a018

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SN - 0276-7333

VL - 3

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EP - 613

JO - Organometallics

JF - Organometallics

IS - 4

ER -

η⁴-Bonding in (Arene)ruthenium Complexes of Octamethylnaphthalene

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