budullewraagh

but that rotational motion doesnt necessarily affect the position of the doubly bonded carbon

oh, just a note about phosphine; it's absolutely lethal. of course, it causes pulmonary edema, but furthermore, it goes straight to the liver and burns holes. not pleasant at all

it's phosphine/diphosphine gas

"Sorrt, my mistake! I mean "chlorine(VII) oxide, Cl2O7, and water free perchloric acid (~100% HClO4)." These are not the same." yes they are. think of it. chlorine (VII) oxide. how can you do that? it's not ClO4 or ClO3. nope. must be Cl2O7. 7*2=14. 2*7=14. then there's Cl2O7. anhydrous perchloric acid. well, that's basically HClO4-H2O. only 1 hydrogen, so you have to say 2HClO4-H2O-->Cl2O7. Cl2O7+H2O-->2HClO4. Cl2O7 is perchloric anhydride

"Are you sure about that? I pretty sure that the single bond between the double bonds rotates so there isn't a fixxed cis or trans for that structure." could you substantiate that? http://www.organic-chemistry.org

well, you should have observed high yields

tin used to be used in foils. thanks for reminding me

sulfuric acid seems to only be a good oxidizer at high concentrations and high temperatures. also, theoretically, you may be right about the iodide salts, but experimentally i've found that significant amounts of HI are evolved, with a reasonable amount of I3- in solution. i also found that while SO2 was evolved, a significant amount of the acid reduced all the way to H2S.

thanks for reminding me of tungsten. cant believe i forgot that one as well. also, Np and Am can be found

as i mentioned. forgot the silicon though, thanks

well, consider the double bonds. first, the one on the right. see the horizontal plane made by the second and third carbon atoms from the right? both double bonds are on the same side of that plane

how conc was the H2SO4?

well, ones you can easily purify/isolate/find/buy OTC in pure form: H, He, Li, C, N, O, Ne, Mg, Al, P, S, Cl, Ar, Fe, Co, Cu, Zn, Br, Ag, I, Pt, Au, Hg, Pb, and from what i've heard, Rh is very rare, but can be found in old jewelry. other elements can be purchased online

chlorine (VII) oxide, Cl2O7 and anhydrous perchloric acid are exactly the same. and yeah, heat it or hit it with a hammer and it will decompose. but im talking about storage. if it's stored properly, it shouldnt be problematic.

sulfuric acid, when mixed with any inorganic salt, will form the mineral acid of the salt and the bisulfate or sulfate, depending on the proportions. ex: MCl+H2SO4-->HCl+MHSO4 2MCl+H2SO4-->2HCl+M2SO4 (with less of a yield) and so, KMnO4+H2SO4-->KHSO4+HMnO4 but sulfuric acid is quite a strong dehydrating agent, and if concentrated enough, it dehydrates the permanganic acid to form the anhydride of permanganic acid. permanganic acid is explosively unstable, yes, but it's not like TCAP. dont put it near a reducing agent and you'll be ok. the problem is that it readily decomposes slowly, yielding ozone.

so basically you esterfied the salicylic acid with ethanoic acid and you formed the amide of para-aminophenol with ethanoic acid. what catalysts did you use?

if you really want to do this, make sure your apparatus is absolutely perfect, as this is at least moderately dangerous

it is cis, as the double bonds come out on the same side

what was the base chemical you started with in your synthesis?

that would take waaaay too long. you can buy such software for a few thousand dollars.

out of curiosity, does anybody know if permanganic acid is reasonably stable?

out of curiosity, what precursor did you use, and what did you do to obtain your final product?

heh, i tried that. people gave me weird looks, i got nervous. then they said no and told me to leave

ah, just a note about the nitric anhydride; it is volatile and sublimes at around 32 celsius. however, it is only stable below -10 celsius, so it will rapidly decompose to yield NO2/N2O4 and O2. it is soluble in chloroform and moderately so in carbon tetrachloride. such solutions are reasonably stable for short amounts of time, so long as they are kept cold.

well, dilute solutions of permanganic anhydride would be permanganic acid, which is significantly less scary.