The Synthesis of New 60° Organometallic Subunits and Self-Assembly of Three-Dimensional M<sub>3</sub>L<sub>2</sub> Trigonal-Bipyramidal Cages
作者:Hai-Bo Yang、Koushik Ghosh、Atta M. Arif、Peter J. Stang
DOI:10.1021/jo061779j
日期:2006.12.1
By employing the coupling reaction of trans-PtI2(Et-3)(2) with C-H bonds in alkynes as the key step, two new 60 organometallic subunits with different size from 3,6-dibromophenanthrene were prepared in reasonable yields. The X-ray structures of both di-Pt(II) diiodide complexes showed that they were indeed suitable candidates for 60 building units. By utilizing these novel linkers as ditopic acceptor subunits, three M3L2 trigonal-bipyramidal (TBP) cages were formed. All three TBP cages were characterized with multinuclear NMR and electrospray ionization mass spectrometry (ESI-MS) along with element analysis.