translate English to French: Crystals of tricyclohexylphosphine sulphide, C18H33PS, are orthorhombic, a = 10.906(2), b = 15.836(2), c = 10.362(2) Å, Z = 4, space group Pn21a.
Les cristaux du sulfure de tricyclohexylphosphine, C18H33PS, sont orthorhombiques, a = 10.906(2), b = 15.836(2), c = 10.362(2) Å, Z = 4, groupe d'espace Pn21a.