Citation: Roy, Suprakash; Javed, Saleem; Olmstead, Marilyn M.; Patra, Apurba K. (2011). First structural example of a metal uncoordinated mesoionic imidazo[1,5-a]pyridine and its precursor intermediate copper complex: an insight to the catalytic cycle.. Dalton transactions (Cambridge, England : 2003), 40, pp. 12866-12876.