719307-35-4

Basic information

• Product Name: [Ce((N(SiMe₃)C(C₆H₄Bu(t)-4))2CH)(N(Si(CH₃)3)2)2]
• CAS NO: 719307-35-4
• Molecular Weight: 938.754
• Mol File: 719307-35-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: [Ce((N(SiMe₃)C(C₆H₄Bu(t)-4))2CH)(N(Si(CH₃)3)2)2](CAS DataBase Reference)
• NIST Chemistry Reference: [Ce((N(SiMe₃)C(C₆H₄Bu(t)-4))2CH)(N(Si(CH₃)3)2)2](719307-35-4)
• EPA Substance Registry System: [Ce((N(SiMe₃)C(C₆H₄Bu(t)-4))2CH)(N(Si(CH₃)3)2)2](719307-35-4)

Safety Data

• Hazardous Substances Data: 719307-35-4(Hazardous Substances Data)

Upstream product

• 41836-21-9 tris(bis(trimethylsilylamido))cerium(III) 
• 719307-37-6 H[(N(SiMe₃)C(C₆H₄Bu(t)-4))2CH] 

Relevant articles and documents

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

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(μ-Br){CH(SiMe3)2}(OEt2)]2 (D) formed the crystalline nitrile adducts [l(NCBut)2] (5), [2(NCPh)] (6), [C(NCR)2] [R = But (8), Ph (9), C 6H3Me2-2,6 (10)] and [Mg(μ-Br){CH(SiMe 3)2}(NCR)]2 [R = But (11), Ph (12), C6H3Me2-2,6 (13)], rather than β-diketiminato-metal insertion products. The β-diketiminato-cerium complex [Ce{(N(SiMe3)C(C6H4Bu t-4))2CH}{N(SiMe3)2}2] (16) was obtained from [Ce{N(SiMe3)2}3] and the β-diketimine H[{N(SiMe3)C(C6H4Bu t-4)}2CH]]. The cerium alkyl 2 and [Ln{CH(SiMe 3)(SiMe2OMe)}3] [Ln = Y (3), Ce (4)] were obtained from the appropriate lithium alkyl precursor and [Ce(OC 6H2But2-2,6-Me-4)3] or LnCl 3, 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 1-7, D, [Mg{CH(SiMe3)2} 2(OEt2)2], the known [Ce(Cl){(N(SiMe 3)C(Ph))2CH}2] (E) and 16 are reported. The cerium alkyl 2 (like 1) has one close Ce ... C contact for each ligand, attributed to a γ-C-Ce agostic interaction. The Ln alkyls 3 and 4 have a trigonal prismatic arrangement of the chelating ligands (each of the same chirality at Cα) around the metal. In an arene solution at 313 K 3 exists as two isomers, as evident from detailed NMR spectroscopic experiments.