15933-59-2Relevant articles and documents
Group 2 metal (Mg, Ca, Sr) silylamides supported by a cyclen-derived macrocyclic polyamine
Mukherjee, Debabrata,Shirase, Satoru,Beckerle, Klaus,Spaniol, Thomas P.,Mashima, Kazushi,Okuda, Jun
, p. 8451 - 8457 (2017)
Heteroleptic bis(silyl)amides of magnesium and calcium [(L)M{N(SiMe3)2}] [M = Mg, Ca; LH = 1,4,7-trimethyl-1,4,7,10-tetraazacyclododecane; (Me3TACD)H] were previously synthesized from LH and [M{N(SiMe3)2}2]. Strontium bis(silyl)amides [Sr{N(SiMe3)2}2(thf)2] and [Sr{N(SiHMe2)2}2(thf)2/3] reacted with LH to give different types of products, depending on the presence of the β-SiH function. While the former underwent protonolysis to give the amido-bridged dimer [(L)Sr{N(SiMe3)2}]2 (1), the latter gave the adduct [(LH)Sr{N(SiHMe2)2}2] (2) as a stable solid. 2 slowly underwent an intramolecular Si-H/H-N dehydrocoupling in solution to give [{(L)SiMe2N(SiHMe2)}Sr{N(SiHMe2)2}] (3) by liberating H2. The results of transamination of 1 with HN(SiHMe2)2 depended on the relative stoichiometric ratio. A 1 : 1 mixture in n-pentane gave [{(L)SiMe2N(SiHMe2)}Sr{N(SiMe3)2}] (4) and H2, while excess HN(SiHMe2)2 gave the adduct 2 under similar conditions. Compounds 2 and 3 exhibit Sr? H-Si interactions according to X-ray crystallography, NMR, and IR spectroscopy. Lighter congeners of elusive [(L)Sr{N(SiHMe2)2}] were isolable for Mg (5) and Ca (6).
Yttrium and aluminium complexes bearing dithiodiolate ligands: Synthesis and application in cyclic ester polymerization
Meduri,Cozzolino,Milione,Press,Sergeeva,Tedesco,Mazzeo,Lamberti
, p. 17990 - 18000 (2015)
Yttrium and aluminium complexes of two dithiodiolate ligands that feature different bridges (CF3)2C(OH)CH2SRSCH2C(OH)(CF3)2 (L1-H2, R = CH2CH2 and L2-H2, R = C6H4) were synthesized in good yields by reacting tris(silylamide)yttrium or trimethylaluminium with one equivalent of the proligand. All complexes were characterized by NMR and elemental analysis, and single-crystal X-ray structural analysis was also performed for one of the yttrium complexes. The catalytic activities of the four complexes in the ring-opening polymerization of ε-caprolactone and rac-lactide have been investigated. Furthermore, DOSY experiment and DFT calculations have been carried out to determine the structure of the isopropoxo derivative of the complex L2Y amide.
NOVEL TRISILYL AMINE DERIVATIVE, METHOD FOR PREPARING THE SAME AND SILICON-CONTAINING THIN FILM USING THE SAME
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Paragraph 71; 72; 73, (2015/07/23)
Provided are a novel trisilyl amine derivative, a method for preparing the same, and a siliconcontaining thin film using the same, wherein the trisilyl amine derivative, which is a compound having thermal stability, high volatility, and high reactivity and being present in a liquid state at room temperature and under pressure where handling is possible, may form a high purity siliconcontaining thin film having excellent physical and electrical properties by various deposition methods.