Facile Dinitrogen Reduction via Organometallic Tm(II) Chemistry

Evans, William J.; Allen, Nathan T.; Ziller, Joseph W.

doi:10.1021/ja011282l

Cited by 128 publications

(128 citation statements)

References 20 publications

(20 reference statements)

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“…In contrast, [SmI 2 (hmpa)], a lanthanide(II) reagent of choice for this type of cross-coupling, [8] proved to be ineffective under the conditions examined. Evans also reported that complexes of thulium(II) reduce dinitrogen, [77] which might explain why preparation of this reagent failed during previous attempts.…”

Section: Thulium(ii) Iodidementioning

confidence: 97%

Beyond Samarium Diiodide: Vistas in Reductive Chemistry Mediated by Lanthanides(II)

2012

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Reactions proceeding through open-shell, single-electron pathways offer attractive alternative outcomes to those proceeding through closed-shell, two-electron mechanisms. In this context, samarium diiodide (SmI(2)) has emerged as one of the most important and convenient-to-use electron-transfer reagents available in the laboratory. Recently, significant progress has been made in the reductive chemistry of other divalent lanthanides which for many years had been considered too reactive to be of value to synthetic chemists. Herein, we illustrate how new samarium(II) complexes and nonclassical lanthanide(II) reagents are changing the landscape of modern reductive chemistry.

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Section: Thulium(ii) Iodidementioning

confidence: 97%

Beyond Samarium Diiodide: Vistas in Reductive Chemistry Mediated by Lanthanides(II)

2012

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“…The addition of KC 5 Me 5 to TmI 2 resulted in the reduction of the dinitrogen atmosphere that had been assumed to be inert, Eq. (4) [63]. As described later, (4) the reduction of dinitrogen by addition of ligands to TmI 2 is quite general.…”

Section: Methodsmentioning

confidence: 91%

“…Eq. (5) shows that Tm 2+ can cleave diethyl ether to make ethoxide and oxide ligands [63]. (5) Once it was established that Tm 2+ could be accessed in solution, the assumptions that Dy and Nd were too unstable to be isolated as molecular species were suspect.…”

Section: Methodsmentioning

confidence: 99%

Twenty-Fifth Rare Earth Research Conference

Rogers

2009

Journal of Alloys and Compounds

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Several activities were designed to encourage participation of students and young scientists, including registration fee waivers, assistance with travel and hotel costs, poster prize and best presentation awards, and a career roundtable.Except for the $500 administration fee, all funds were used to support the participation of students and young scientists. These funds allowed students and young scientists to attend the premier US meeting in the field and network with the top international scientists in the field. They had the opportunity not only to learn about the state-of-the-art in the field, but also interact with motivational scientists from around the World. It is anticipated that new contacts and collaborations were generated and many left with an increased interest in the field of f-element chemistry. The program of the 25 th Rare Earth Research Conference (RERC08) integrated basic and applied multidisciplinary research centered on the f-elements. Leading science was featured in the form of invited oral presentations and contributed posters on topics in f-element chemistry, physics, and material, earth, environmental, and biological sciences. The conference was held in Shelby Hall, located on The University of Alabama's Tuscaloosa, AL campus. The final program and list of attendees is available at URL http://bama.ua.edu/~rdrogers/RERC08/. Conference Information Spedding AwardA highlight of the meeting was the recognition of the accomplishments of an internationallyrecognized scientist, Professor William Evans, with the presentation of the Spedding Award. This prestigious award is given in recognition of excellence and achievement in research centered on the science and technology of rare earths. The awardee is selected by a committee from submitted nominations. The award consists of a medal mounted on a plaque and a monetary sum of $1,000, sponsored by Bracco Research USA Inc. The Spedding Award winner was asked to present a lecture on the highlights of his or her work at the meeting. Plenary Lectures Journal of Alloys and Compounds 488 (2009) 491Contents lists available at ScienceDirect Every conference also needs strong financial supporters and RERC08 was no different. We are grateful for the financial and personal participation of the RERC08 sponsors, Bracco Research USA Inc., the U.S. Department of Energy Office of Basic Energy Sciences; Ames Laboratory, Argonne National Laboratory, and The University of Alabama. Journal of Alloys and CompoundsFinally, I need to thank all of my staff and students that contributed to the local arrangements and the smooth operation of the meeting. The Conference Coordinator, Ms. Mihaela Rogers, also sends her thanks to all of the participants and their good humor which all led to a pleasant conference experience from both participants and organizers. Journal of Alloys and Compounds 488 (2009) [493][494][495][496][497][498][499][500][501][502][503][504][505][506][507][508][509][510] Contents lists available at ScienceDirect Although f element chemistry has progress...

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“…Wenngleich gezeigt werden konnte, dass alle drei LnI 2 -Verbindungen stabil und lçslich in den gängigen Lçsungsmitteln wie THF und DME sind, [71] handelt es sich bei NdI 2 wohl um das vielversprechendste Reagens, da es ein sehr hohes Redoxpotential aufweist, [3f] geringe Kosten verursacht [72] und gut verfügbar aus Neodym(II)-Vorstufen ist. [73] [77] was eine Erklärung dafür sein kçnnte, dass die Herstellung dieses Reagens zuvor fehlgeschlagen war.…”

Section: Reduktionen Mit Neuen Lanthanoid(ii)-reagentienunclassified

Jenseits von Samariumdiiodid: Perspektiven für Lanthanoid(II)‐vermittelte Reduktionen

Szostak

Procter

2012

Angewandte Chemie

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Reaktionen, die über offenschalige Einelektronenmechanismen ablaufen, führen zu interessanten alternativen Resultaten gegenüber solchen Reaktionen, die Zweielektronenmechanismen mit geschlossenen Schalen gehorchen. In diesem Zusammenhang entwickelte sich Samariumdiiodid zu einem der wichtigsten Elektronentransferreagentien. In letzter Zeit wurde ein signifikanter Fortschritt auf dem Gebiet der reduktiven Chemie anderer zweiwertiger Lanthanoide erzielt, die viele Jahre lang als zu reaktiv erachtet worden waren, um von Nutzen für Synthesechemiker zu sein. Wir beschreiben hier, wie neue Samarium(II)‐Komplexe und nichtklassische Lanthanoid(II)‐Reagentien die moderne reduktive Chemie verändern.

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Facile Dinitrogen Reduction via Organometallic Tm(II) Chemistry

Cited by 128 publications

References 20 publications

Beyond Samarium Diiodide: Vistas in Reductive Chemistry Mediated by Lanthanides(II)

Beyond Samarium Diiodide: Vistas in Reductive Chemistry Mediated by Lanthanides(II)

Twenty-Fifth Rare Earth Research Conference

Jenseits von Samariumdiiodid: Perspektiven für Lanthanoid(II)‐vermittelte Reduktionen

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