Structure, electrochemistry, spectroscopy, and magnetic resonance, including high-field EPR, of (μ-abpy)Re(CO)3X2o/·-, where abpy = 2,2'-azobispyridine and X = F, Cl, Br, I. Journal of Organometallic Chemistry, (694)7-8:1122--1133, 2009. [PUMA: azobispyridine carbonyl complex complex;EPR complex;cyclic complex;magnetic complex;rhenium crystal halo prepn property rhenium spectra structure voltammetry]