Sterically encumbered charge-compensated carbaboranes: Synthesis and reactivity molecular structures of 7-Ph-11-SMe2-7,8-nido-C2B9H10 and 1-Ph-3,3-(CO) 2-7-SMe2-3,1,2-closo-RhC2B9H8

Georgina M. Rosair, Alan J. Welch, Andrew S. Weller, Stephan K. Zahn

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Reaction between K[7-Ph-7,8-nido-C2B9H11] and dmso in H2SO4 affords a mixture of the isomers 7-Ph-9-SMe2-7,8-nido-C2B9H10 (1a) and 7-Ph-11-SMe2-7,8-nido-C2B9H10 (1b). Similarly, starting from K[7,8-Ph2-7,8-nido-C2B9H10], the diphenyl analogue 7,8-Ph2-9-SMe2-7,8-nido-C2B9H9 (2) was produced. These three new nido carbaboranes have been characterised spectroscopically, including 11B-11B COSY and 1H-1H NOESY experiments, and by a single crystal diffraction study on 1b. Deprotonation of 1a followed by addition of [RhCl(CO)2]2 affords the carbametallaborane 1-Ph-33-(CO)2-7-SMe2-3,1,2-closo-RhC2B9H9 (3), characterised by IR and 1H and 11B NMR spectroscopies and by a crystallographic study. © 1997 Elsevier Science S.A.

Original languageEnglish
Pages (from-to)299-308
Number of pages10
JournalJournal of Organometallic Chemistry
Volume536-537
Publication statusPublished - 30 May 1997

Keywords

  • Boron
  • Carbaboranes
  • Crystal structure
  • Rhodium
  • Steric effects

Fingerprint Dive into the research topics of 'Sterically encumbered charge-compensated carbaboranes: Synthesis and reactivity molecular structures of 7-Ph-11-SMe<sub>2</sub>-7,8-nido-C<sub>2</sub>B<sub>9</sub>H<sub>10</sub> and 1-Ph-3,3-(CO) <sub>2</sub>-7-SMe<sub>2</sub>-3,1,2-closo-RhC<sub>2</sub>B<sub>9</sub>H<sub>8</sub>'. Together they form a unique fingerprint.

  • Cite this