The syntheses and reactions of thallium and dithallium dicarbollides

The vacuum pyrolysis of Tl₂R¹R²C₂B₉H₉(R¹=R²=H; R¹=H, R²=CH₃; R¹R²=CH₃) species yielded some interesting thallium-containing heterocarboranes. The major pyrolysis products are thallium metal and TlR¹R²C₂B₉H₁₀. Hydrogen and the corresponding closo-carboranes, R¹R²C₂B₉H₉, were produced as minor products. The reactions of Tl₂R¹R²C₂B₉H₁₀ compounds with weak organic acids yielded the identical Tl₂R¹R²C₂B₉H₁₀ products that were produced by vacuum pyrolysis. The action of strong protic acids on Tl₂R¹R²C₂B₉H₉ produced the nido-carboranes, R¹R²C₂B₉H₉. The mechanism of the pyrolysis reaction and the proposed structures of the Tl₂R¹R²C₂B₉H₁₀ compounds are discussed. The compounds were identified by ¹H and ¹⁹B NMR, IR, mass spectrometry, and elemental analysis.

Name thesis:degree_name

Master of Science

Level thesis:degree_level

masters

Discipline thesis:degree_discipline

Chemistry

Department dc:contributor.department

Chemistry

Grantor dc:publisher

Virginia Polytechnic Institute and State University

Year dc:date.issued

1982

Author dc:creator

• Smith, Johnny

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Language dc:language.iso

en_US

Handle dc:identifier.uri

http://hdl.handle.net/10919/76256

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/76256