The volume of a monoclinic unit cell is abc sin (see Problem 18A.2). Naphthalene has a

The volume of a monoclinic unit cell is abc sin β (see Problem 18A.2). Naphthalene has a monoclinic unit cell with two molecules per cell and sides in the ratio 1.377:1:1.436. The angle β is 122.82° and the mass density of the solid is 1.152 g cm⁻³. Calculate the dimensions of the cell.

Data in Problem 18A.2

Show that the volume of a monoclinic unit cell is V=abc sin β.