SEARCH Articles Figures Tables Complexes cyclobutadiene complex Cyclobutadien Cyclobutadiene Cyclobutadiene Metal Complexes Cyclobutadiene complex Cyclobutadiene complexes with metals Cyclobutadiene-metal Cyclobutadienes Cyclobutadienes complexes Metal complexes, of cyclobutadiene Subject index Cyclobutadiene)metal complexes, Transition metal complexes cyclobutadienes