Np3ZrCl (Np = neopentyl) is found to form strictly linear symmetric chains with the -Cl-ZrNp3-Cl-ZrNp3-unit in the solid state. Each Zr atom adopts a trigonal bipyramidal geometry and forms a plane with three alpha-carbon atoms. The Zr-Cl bonds are perpendicular to this plane(C-Zr-Cl angles : 90.0-degrees). There are four polymeric chains occupying four edges of a unit cell in a direction parallel to the c axis. Three convenient syntheses for Np3ZrCl are also reported.