hypervalent_iodine

That's alright, it's probably more my fault for not having stated a disclaimer of some sort before I posted.

That's a fair point. Still, I think you can glean just as much through experience in reading threads and watching where the rep points go as you can in being notified where yours are received and lost. Ophiolite, I didn't approach this thread from my position as staff, I approached it as a member; I'd be grateful if you could address my posts as such. I will also say that it's not my place to comment on what can and cannot be altered within the software the site uses. For that, you'd have to speak to Cap'n.

I don't see how not being explicitly notified as to which of your posts gained rep points really negates what I've said. To my mind, the types of posts that lead to positive and negative rep points are made fairly obvious by reading threads and observing where membership has doled them out. I don't think you don't need exact knowledge of where you've gained or lost points to have that sort of understanding. Regardless, I think you've taken what I've said for something else. You seem to be suggesting that the point of the reputation system is so you can engineer posts to tell people what they want to hear rather than what you actually want to say. I have no doubt that some people use it to that end and that it works for that purpose. In my opinion, however, I think that the intention was and is to motivate members to make posts that are thoughtful, well researched and well written.

You can't. Giving members the ability to do that runs the risk of creating targetted animosity and vengeful posting. That's not what we want. The purpose of the reputation points is to encourage members to post quality material, not to pit them against one another.

! Moderator Note Since rajaksrna is no longer with us, this thread is closed.

! Moderator Note Enthalpy, two things. Firstly, you can discuss your rocket stuff here instead of trying to usher people off-site. Secondly, the last post you made (removed by staff) was completely off topic. Please stick to the subject matter.

! Moderator Note Slapgravel, please observe our rules regarding civility and courteousness when posting. Calling someone a 'tool' is not an advisable course of action, nor does it add to your argument.

Says who?

! Moderator Note zorro, this stops now. This is a science forum, not an 'in my own opinion' forum. This particular forum is also not a place to peddle your own hypotheses about creation. Stick to discussing mainstream science rather than speculation based on your own opinions (as opposed to evidence) and stop hijacking threads or you will find your self suspended.

paul, your institution should have access to a number of journals or at the very least, be able to foot the bill for you to get the articles you need. Unfortunately, copyright law means that no one here will be allowed to download articles that are not freely available and send them to you. I would suggest speaking to your supervisor or taking a trip to your library and speaking to someone there.

That's quite alright, it's not really a rule or anything, it's more of a friendly suggestion. Part of the point of having a forum like this is so that people can go back through old threads and use them as a learning tool. It saves a lot of confusion if the whole OP is there to read as well.

! Moderator Note examorph, in future could you please not edit out your OP entirely? If you've fixed the issue, a simple note at the end will suffice.

Ignore my last post, my mistake. You need to look at the reacting carbon centre - do you think a carbocation would be stable there? As for you second question, try and draw the products for both an elimination and a substitution. The answer should become fairly obvious.

! Moderator Note NikFish, there already exists a current thread on this. Please share your thoughts there.

Remember that the m/z at 149, is the mass of your compound +1. You should get C10H14O, which then gives you a much more reasonable DBE. Alright, so you can start to look at what fragments you can make and try to put them together. If you have a phenyl ring, what kind of substitution pattern do you think you have? Have a look at the splitting of your CH group and see what that tells you about adjacent carbon centres. You might also want to look at your carbon spectra to see what that's telling you.

The mass spec should be a big help to you. Have you ever heard of the rule of 13? It's certainly not a fail safe, but it can be very helpful in determining your molecular formula. In this case you should be able to determine what it is fairly easily. You know you have at least one oxygen in your compound and figuring out if there is more than that should come to you quite quickly given the other information you have about the structure. Have a look at the integration of your 1H NMRand work out your ratios. From there it should become obvious what your groups are and how many of them you have and from there it's simply a matter of figuring out how they're connected. The way it fragments in the MS should give you some clue as to which isomer is more likely.

Firstly, can you identify what type of reaction this is? As a side note, you've drawn the cyano group as being bound through the nitrogen - are you sure that's correct? (Hint: it's not)

! Moderator Note I think everybody needs to take a small step back and a few deep breaths. Xitten, you've been here long enough to know how the forum works. If you have a problem with something someone says, you report it, you don't derail threads. That goes for all of you.

In fact, because the atomic radii of iodine is so large, iodide - carbon bonds are more labile and therefore tend to be much more reactive than corresponding chlorides or bromides; substitution not only occurs but occurs at a much faster rates where X = I. I will tell you that it isn't to do with the halide. Have another look at your substrates and draw the reaction product (and the mechanism). Look at the reacting carbon centres and see if you can you pick any substrate in there that looks out of place.

I'm assuming this is a homework question. What do you think the answer is? It will help you to have a look at the substrates in that list and try to work out a product for each one.

! Moderator Note Villain, please stick to the topic of the OP.

! Moderator Note Sure, except for these bits: And That extends to your own threads. Aman shah, please familiarise yourself with our forum rules. If you are unsure of something, you are welcome to contact staff for clarification. The trial and error method of figuring out what's allowed and what is not will get you suspended.

! Moderator Note pengkuan, you already have a thread addressing this issue, so please post all related material there instead of making new threads. Additionally, please do not use posts to advertise your other threads. Thread closed.