cyclopenta-1,3-diene; cyclopentane; $l^{1}-rhenane;1271-32-5;Rhenium, bis(eta5-2,4-cyclopentadien-1-yl)hydro-;Rhenium, bis(.eta.5-2,4-cyclopentadien-1-yl)hydro-
cyclopenta-1,3-diene; cyclopentane; $l^{1}-rhenane