Fully Chlorinated N-Silyl Amides of Titanium and Tungsten

Schwarze, Bernd; Milius, Wolfgang and Schnick, Wolfgang (1997): Fully Chlorinated N-Silyl Amides of Titanium and Tungsten. Crystal Structure of Cl3SiNW(Cl3)N(SiCl3)2. In: Chemische Berichte, Vol. 130, No. 6: pp. 701-704

Abstract

The reaction of hexachlorodisilazanyllithium (Cl3Si)2NLi (1), with TiCl4 leads selectively to the novel fully chlorinated amides (Cl3Si)2NTiCl3 (2) or [(Cl3Si)2N]2 TiCl2 (3), respectively, depending on the molar ratio of the starting materials. The analogous reaction of 1 with WCl6 yielded the amide imide Cl3SiNW(Cl3)N(SiCl3)2 (5) by elimination of SiCl4. The relative amounts of the starting materials had no effect on the formation of 5. 14/15N- and 29Si-NMR data on the starting materials and products show significantly different effects, when compared with those of analogous N-trimethylsilyl derivatives, due to the lower energy of the electrons in the NSi and NM ß bonds. The crystal structure of 5 (triclinic, space group P1) was determined by X-ray structure analysis.

• Item Type: Journal article
• Form of publication: Publisher's Version
• Keywords: N-Silyl amides; Precursor; 14N-NMR; Titanium; Tungsten
• Faculties: Chemistry and Pharmacy
• Subjects: 500 Science > 540 Chemistry
• ISSN: 0009-2940
• Language: English