The formation and molecular structure of (η5-C5H5)Rh(CO)[C(NMe)CH2CH2(NMe)]

David W. Macomber, Robin D. Rogers

Research output: Contribution to journalArticle

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Abstract

A reaction between (η5-C5H5)Rh(CO)2 and bis(1,3-dimethylimidazolindin-2-ylidene) in methylcyclohexane produces (η5-C5H5)Rh(CO)[C(NMe)CH2CH2(NMe)] in 53% yield. This mononuclear cyclopentadienylrhodium carbene complex was characterized by elemental analysis, 1H NMR, 13C{1H} NMR, IR, mass spectral, and single-crystal X-ray diffraction methods. The compound (η5-C5H5)Rh(CO)-[C(NMe)CH2CH2(NMe)] crystallizes in the monoclinic space group P21/n with a 9.053(3), b 10.256(4), c 12.696(5) Å, β 91.18(3)° and Dcalc 1.66 g cm-3 for Z = 4. The structure was refined by least-squares techniques to a final conventional R value of 0.045 using 1739 independent observed (I ≥ 3σ(I)) reflections. The overall structure is that of a two-legged piano stool. The RhC(η5) separations average 2.29(3) Å. The RhC and RhCO bond lengths are 1.994(7) and 1.795(9) Å, respectively.

Original languageEnglish (US)
Pages (from-to)353-360
Number of pages8
JournalJournal of Organometallic Chemistry
Volume308
Issue number3
DOIs
StatePublished - Jul 15 1986

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Carbon Monoxide
Molecular Structure
Molecular structure
molecular structure
Nuclear magnetic resonance
nuclear magnetic resonance
Bond length
carbenes
Single crystals
Least-Squares Analysis
X-Ray Diffraction
X ray diffraction
single crystals
Chemical analysis
diffraction
x rays
Proton Magnetic Resonance Spectroscopy

Cite this

The formation and molecular structure of (η5-C5H5)Rh(CO)[C(NMe)CH2CH2(NMe)]. / Macomber, David W.; Rogers, Robin D.

In: Journal of Organometallic Chemistry, Vol. 308, No. 3, 15.07.1986, p. 353-360.

Research output: Contribution to journalArticle

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abstract = "A reaction between (η5-C5H5)Rh(CO)2 and bis(1,3-dimethylimidazolindin-2-ylidene) in methylcyclohexane produces (η5-C5H5)Rh(CO)[C(NMe)CH2CH2(NMe)] in 53{\%} yield. This mononuclear cyclopentadienylrhodium carbene complex was characterized by elemental analysis, 1H NMR, 13C{1H} NMR, IR, mass spectral, and single-crystal X-ray diffraction methods. The compound (η5-C5H5)Rh(CO)-[C(NMe)CH2CH2(NMe)] crystallizes in the monoclinic space group P21/n with a 9.053(3), b 10.256(4), c 12.696(5) {\AA}, β 91.18(3)° and Dcalc 1.66 g cm-3 for Z = 4. The structure was refined by least-squares techniques to a final conventional R value of 0.045 using 1739 independent observed (I ≥ 3σ(I)) reflections. The overall structure is that of a two-legged piano stool. The RhC(η5) separations average 2.29(3) {\AA}. The RhC and RhCO bond lengths are 1.994(7) and 1.795(9) {\AA}, respectively.",
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