Some bis(azacycle)isoindolines and mono-, di- and trinuclear complexes of nickel(II) derived from them

INOR 369

Evan M. Beard1, Anthony W Addison, addisona@drexel.edu1, Matthias Zeller, mzeller@cc.ysu.edu2, Andrew J. Milewski1, Samuel Lofland3, Lindsay E. Crist1, Lawrence M. Wolf1, and Allen D. Hunter, adhunter@ysu.edu2. (1) Department of Chemistry, Drexel University, Philadelphia, PA 19104-2875, (2) Department of Chemistry, Youngstown State University and STaRBURSTT CyberDiffraction Consortium, 1 University Plaza, Youngstown, OH 44555-3663, (3) Department of Chemistry and Physics, Rowan University, Glassboro, NJ 08028
Alkylated bis(2'-pyridyl)isoindolines (HL) and bis(3'-pyrazolyl)isoindolines may be prepared conveniently in good yield by microwave synthesis. Strong (N-donor) or anionic ligands can steer the nickel(II) systems away from forming [NiL2]. [NiL(Me2phen)]+ entails low-spin pentacoordinate nickel(II), while the nickels in oxalate-bridged [(NiL)2(C2O4)] bind DMF solvent to become hexacoordinate, high-spin and antiferromagnetically coupled. Addition of N-methylimidazole as an auxiliary (sixth) ligand was found to be associated with binding of CO2, leading to formation of an antiferromagnetic, C3v-symmetric µ3-carbonato trimer.
 

Transition Metals
7:00 PM-10:00 PM, Sunday, 10 September 2006 Moscone Center -- Hall D, Poster

Sci-Mix
8:00 PM-10:00 PM, Monday, 11 September 2006 Moscone Center -- Hall D, Sci-Mix

Division of Inorganic Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006