The compound adopts apianostoolstructure: the cyclopentadienyl ligand is the seat and three other ligands are legs.
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Such species are occasionally referred to aspianostoolcompounds, at least when there are three diatomic ligands in addition to the hydrocarbon seat of thepianostool.
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The luxury of two pianos (and even two piano stools) being beyond their means.
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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 thepianostool.
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