The compound adopts a piano stool structure: the cyclopentadienyl ligand is the seat and three other ligands are legs.
Such species are occasionally referred to as piano stool compounds, at least when there are three diatomic ligands in addition to the hydrocarbon seat of the piano stool.
The luxury of two pianos (and even two piano stools) being beyond their means.
Tom then plays a chord where the mouse is standing repeatedly, receiving increasingly rude gestures in return, and eventually catches the mouse and stows him into the piano stool.
