INOR 183 |
| The novel 9-borabicyclo[3.3.1]nonane organohydroborate bis(cyclopentadienyl) zirconium dimer complex [ZrCp2(OBBN)]2 was prepared in the reaction of oxygen bridged zirconium dimer [ZrCp2Cl]2O with potassium 9-borabicyclo[3.3.1]nonane. The complex was characterized by proton and boron NMR and IR spectroscopies and the molecular structure by single-crystal X-ray analysis. 9-BBN organohydroborate lgand is attached to a Zr atom through Zr-H-B and Zr-O-B bridge atoms. Two ZrCp2 fragments are linked by two bridging groups through a hydrogen and oxygen atoms which are bonded to 9-BBN. The proton NMR spectrum shows a broad peak at -3.33 ppm which is assigned to a bridge hydrogen and the boron NMR spectrum shows a peak at 55.46 ppm which is assigned to a boron atom of 9-BBN. The crystal system is a monoclinic. R1 and wR2 are 0.0222 and 0.0520, respectively.
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Organometallic General and Catalysis
7:00 PM-9:00 PM, Sunday, 13 March 2005 Convention Center -- Hall D, Poster
Division of Inorganic Chemistry |