What Are the 7 Isomers of Dichloropropene, C3H4Cl2?

AI Thread Summary
The discussion centers on the number of structural and cis-trans isomers for dichloropropene (C3H4Cl2). The initial claim identifies four isomers: 1,1-dichloropropene, 1,3-dichloropropene (counted as two due to cis-trans forms), and 1,2-dichloropropene (also counted as two for its cis-trans variations). However, the answer sheet states there are seven isomers in total. Participants are encouraged to identify all isomers, including those where neither chlorine atom is in the first position, suggesting that additional configurations may exist beyond the initial five identified. The conversation highlights the complexity of isomer formation in organic chemistry, particularly with compounds that can exhibit both structural and geometric isomerism.
mutineer
Messages
13
Reaction score
0
20 How many structural and cis-trans isomers are there for dichloropropene,
C3H4Cl2. I could find a total of 4, with 2 structural and 2 cis trans. But the answer sheet says 7! can someone tell me all the isomers it can form?
 
Chemistry news on Phys.org
7 there are.

List those you have (or draw them).
 
I found five
the first is 1,1 dichloropropene
the second is 1,3 dichloropropene(since this has cis-trans I count it as two)
the fourth is 1,2 dichlropropene (again this shows cis-trans so I count it as two)
Thats it, i can't find anymore!
 
What if neither Cl atom is in the 1 position?
 

Thread 'Why does having 8 valence electrons make an element inert?'

I was introduced to the Octet Rule recently and make me wonder, why does 8 valence electrons or a full p orbital always make an element inert? What is so special with a full p orbital? Like take Calcium for an example, its outer orbital is filled but its only the s orbital thats filled so its still reactive not so much as the Alkaline metals but still pretty reactive. Can someone explain it to me? Thanks!!
View full post »

Thread 'Humidity of a saturated NaCl solution with anticaking additive'

I want to test a humidity sensor with one or more saturated salt solutions. The table salt that I have on hand contains one of two anticaking agents, calcium silicate or sodium aluminosilicate. Will the presence of either of these additives (or iodine for that matter) significantly affect the equilibrium humidity? I searched and all the how-to-do-it guides did not address this question. One research paper I found reported that at 1.5% w/w calcium silicate increased the deliquescent point by...
View full post »

Thread 'Resists for etching Aluminium with NaOH'

I'm trying to find a cheap DIY method to etch holes of various shapes through 0.3mm Aluminium sheet using 5-10% Sodium Hydroxide. The idea is to apply a resist to the Aluminium then selectively ablate it off using a diode laser cutter and then dissolve away the Aluminium using Sodium Hydroxide. By cheap I mean resists costing say £20 in small quantities. The Internet has suggested various resists to try including... Enamel paint (only survived seconds in the NaOH!) Acrylic paint (only...
View full post »

Similar threads

Exploring the Packing Efficiency of Trans and Cis Isomers in Crystal Structures
Replies
2
Views
3K
Solving CycloHexane Isomerism: Find Total # Possible Isomers
Replies
4
Views
5K
Which Cyclohexane-1,2- or 1,3-Diol Isomer is Most Stable?
Replies
8
Views
2K
Which is the more stable structure?
Replies
3
Views
6K
Identifying Possible Structural Isomers
Replies
9
Views
19K
A very simple qn on geometrical isomers
Replies
2
Views
3K
Glucose structure and insulin resistance
Replies
3
Views
3K
[Ma4b2] Isomerism in coordinate complexes cofusion
Replies
2
Views
13K
Isomers of [Fe(SCN)2(H2O)4]: How Many Possibilities?
Replies
2
Views
3K
Aromaticity of Conjugated Ring - Counting Pi Electrons
Replies
6
Views
3K

Hot Threads

Recent Insights

Back
Top