Synthetic and structural experiments on yttrium, cerium and magnesium trimethylsilylmethyls and their reaction products with nitriles; with a note on two cerium beta-diketiminates

Dalton Transactions : an International Journal of Inorganic Chemistry
Anthony G AventXue-Hong Wei

Abstract

The yttrium, cerium and magnesium bis(trimethylsilyl)methyls [Ln[CH(SiMe3)2]3][Ln = Y (1), Ce (2)], and the known compound Mg[[CH(SiMe3)2]2 (C) and [Mg(mu-Br)[CH(SiMe3)2](OEt2)]2 (D) formed the crystalline nitrile adducts [1(NCBut)2] (5), [2(NCPh)] (6), [C(NCR)2][R = But (8), Ph (9), C6H3Me2-2,6 (10)] and [Mg(mu-Br)[CH(SiMe3)2](NCR)]2 [R = But (11), Ph (12), C6H3Me2-2,6 (13)], rather than beta-diketiminato-metal insertion products. The beta-diketiminato-cerium complex [Ce[(N(SiMe3)C(C6H4But-4))2CH][N(SiMe3)2]2] (16) was obtained from [Ce[N(SiMe3)2]3] and the beta-diketimine H[[N(SiMe3)C(C6H4But-4)]2CH]]. The cerium alkyl 2 and [Ln[CH(SiMe3)(SiMe2OMe)]3][Ln = Y (3), Ce (4)] were obtained from the appropriate lithium alkyl precursor and [Ce(OC6H2But2-2,6-Me-4)3] or LnCl3, respectively. Heating complex 3 with benzonitrile in toluene afforded 2,2-dimethyl-4,6-diphenyl-5-trimethylsilyl-1,3-diaza-2-silahexa-1,3-diene (7), a member of a new class of heterocycles. The X-ray structures of the crystalline compounds, D, [Mg[CH(SiMe3)2]2(OEt2)2], the known [Ce(Cl)[(N(SiMe3)C(Ph))2CH]2] (E) and 16 are reported. The cerium alkyl (like 1) has one close Ce...C contact for each ligand, attributed to a gamma-C-Ce agostic interaction. The Ln alky...Continue Reading

Citations

Dec 1, 2007·Chemical Communications : Chem Comm·Ian J CaselyPolly L Arnold
Dec 19, 2016·Chemical Communications : Chem Comm·Kasuni C BotejuAaron D Sadow
Dec 3, 2016·Angewandte Chemie·Aradhana PindwalAaron D Sadow
Jun 28, 2018·Chemical Communications : Chem Comm·Jürgen PahlSjoerd Harder
Feb 16, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Wenshan RenXuebing Ma
Mar 18, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Peter B HitchcockAndrey V Protchenko
Aug 25, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Alan R KennedyStuart D Robertson
Aug 30, 2005·Dalton Transactions : an International Journal of Inorganic Chemistry·Peter B HitchcockMeisu Zhou
May 29, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Alexandros MortisReiner Anwander
Sep 25, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Xuehong WeiMichael F Lappert
Dec 22, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Ashley J WoolesStephen T Liddle
Mar 27, 2009·Chemical Communications : Chem Comm·Kaking YanAaron D Sadow
Feb 22, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Alan R CrozierReiner Anwander
Jan 25, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Erli LuYaofeng Chen
Oct 13, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Allan G BlackmanLawrence R Gahan
Apr 11, 2006·Inorganic Chemistry·Anthony G M BarrettAndrew J P White
Apr 28, 2021·Angewandte Chemie·Tassilo BergerReiner Anwander
Oct 1, 2010·Chemical Reviews·Melanie Zimmermann, Reiner Anwander
Feb 8, 2011·Journal of Chemical Theory and Computation·Matthias Lein, John A Harrison
Oct 11, 2017·Journal of the American Chemical Society·Aradhana PindwalAaron D Sadow

❮ Previous
Next ❯

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.