In chemistry, how do you covalently bond C2Cl2?

Question

I took a test and we were asked to give the lewis electron dot formula for C2Cl2 and to determine whether you covalently or ionically bind it. I put:
.. .. .. ..
:Cl = C - C = Cl:

and got it wrong. If anyone could help me out, I'd appreciate it because as you might see, I'm horrible with chemistry!

I'm sorry, it ended up looking differently when I posted it... there are supposed to be two dots over each element's symbol.

Answer 1

Are you referring to dichloro ethyne?

A rare molecule indeed. I will search for you.

Maybe you can find a synthesis in one of these journal articles

[1] N.Heineking, M.Andolfatto, U.Keussen, A.Mues, and H.Dreizler, Z.Naturforsch. 44a,735(1989).
[2] L.M.Tack and S.G.Kukolich, J.Mol.Spectrosc. 94,95(1982).
[3] M.Horn, P.Botschwina, and J.Flügge, J.Chem.Soc. Faraday Trans. 89,3669(1993).
[4] M.LeGuennec, G.Wlodarczak, J.Demaison, H.Bürger, and O.Polanz, J.Mol.Spectrosc. 158,357(1993)]

Answer 2

Tetrachloroethylene Cl2C=CCl2