Help Chemistry Test Tomorrow!!

[nabilesmail]

Hey guys, I'm having trouble drawing all the trans isomers of dichlorohexane (in chair form) can someone please tell me how many there are and possibly draw them for me.

Thanks!!

[hypervalent_iodine]

Nabilesmail,

 

As this is a homework question, I will not give you the answers. I can assist in understanding the concepts, so if you could perhaps tell me what it is you aren't getting specifically, I (or the others on the site) could assist?

[nabilesmail]

Nabilesmail,

 

As this is a homework question, I will not give you the answers. I can assist in understanding the concepts, so if you could perhaps tell me what it is you aren't getting specifically, I (or the others on the site) could assist?

 

Well, I drew 10 different chair models of dichlorocyclohexane of equatorial trans isomers, and I don't think thats the right answer. What I was doing was putting a chlorine in each equatorial "up" position, and then pairing them with an equatorial down position to get a trans isomer. Is this correct? Should I be getting 9-10 different isomerds?

[adianadiadi]

Hint: Adjacent axial or equatorial positions are trans to each other. Alternate axial & equatorials are also trans to each. Remaining you have to work out.

 

You have to visualize the cyclohexane first.