Loveall wrote:Ruffles wrote:I have so many questions regarding the polymer model, like, where the additions occur? At both ends? Which atoms would be the ends by the way? What about oxides, they add better or worse than NN-DMT?
One possibility is indole ring
pi stacking. Color under UV changes for DMT xtal vs DMT oil as
benzyme observed, consistent with this.
I believe the literature mentions this aggregation can occur when the molecules come in close proximity in solution. Hence why the DMT FB concentration in water is could be very important. To break this aggregation up hot low boiling point solves seem good when in FB. Also, time as a salt in an acidic environment helps break up the aggregation.
DMT in the plants may come aggregated already. Perhaps more so in acacias vs MHRB. Acacias Amy benefit more from a longer acid step and light hydrocarbon solvents. This is just speculation though.
As we were discussing earlier, pi-stacking interactions (8-12 kJ/mol) are still only very weak interactions in this context, they are only slightly stronger than the weakest of intermolecular forces, induced dipole-induced dipole or van der waals (0.4-4 kJ/mol) and are dwarfed when compared to the stronger non-covalent interactions, such as dipole-dipole and ion-dipole interactions, like hydrogen bonds, these forces are ranging from 20-50 kJ/mol.
To suggest that pi-stacking or other kinds intermolecular forces are going to cause aggregation , in spite of , or in resistance to the intermolecular forces of solvation, especially in the ion-dipole conditions (aqeuous with acid) but even in the non-polar phase (van der waals) is to misappropriate the effect in the thermodynamic context of the system. It is like saying, water boils at 100C, and expecting to see the same thing on Neptune, forgetting the fact that water only boils at 100C at sea level on earth. Similarly, pi-stacking being a dominant force causing aggregation in gas-phase under vacuum, or in crystalline structures, is a different thermodynamic environment compared to aqueous ion solvation.
The only time it is really appropriate to talk about aggregation of DMT at all due to intermolecular forces, is at the very instance of precipitation, whether by crystallization in a non-polar solvent, or precipitation by addition of base into aqueous. In this case, the aggregation is driven more from the pressure of the surrounding liquid and gas pushing the molecules together, than it is from the intermolecular forces of dmt holding onto each other. This is why oils have a very low surface tension in general, compared to water (hydrogen bonds).
The confusion here comes from the general difficulty in obtaining crystals as opposed to goo, but the variables to consider are always concentration and temperature. Using aliphatics like heptane (or naptha) impurities like mysterious dimers, trimers, or other oligomers are insoluble, while pure dmt can be extracted in the hot solvent. It doesn't matter if you are started with red goo, or pure crystalline DMT. Sometimes recrystallization fails, and an oil falls out before the nice crystals do. This is just the nature of the material, and this inconsistency can be attributed to polymorphic properties of the molecule. The higher alkyl tryptamines are even worse in this regard, MIPT for example, has an even harder time to crystallize, likely due to the inhibited rotation of the carbon chain due to the steric blocking of the isopropyl, in DMT these effects are lessened, but still apparent. But it has nothing to do with the extraction or the method, it is a quality of the molecule itself. The only variables you should be concerning yourself with are the typical ones concerning crystallization. Concentration, temperature, the rate of cooling, etc.. even a minor change in these can drastically affect the process for some molecules. Redissolving and heating and using lots of solvent vs less is typically better when dealing with molecules that are dropping out as oil and failing to crystallize. Especially molecules with slow rotating bonds prone to polymorphism, heating helps break the energy barriers for bond rotation. Slow cooling to room temp before putting in the fridge or freezer, addition of a co-solvent like ethyl acetate, these are things that I do to get consistent crystallization.
IridiumAndLace wrote:Loveall wrote:I don't think we encounter DMT oxide. There is no hard evidence for that as far as I can see.
I disagree. In 2018
Brennendes Wasser demonstrated that FB DMT can undergo photooxidation to DMT-n-oxide, and in
2021 presented a reliable method for synthesizing it from an EtOH solution using HโOโ. Despite being a relatively stable molecule on its own, it is clearly capable of oxidizing in the presence of oxygen radicals.
Oxygen radicals are
everywhere. They form in the presence of UV light, they occur in aqueous solutions, and they're a natural by-product of plant metabolism. It stands to reason that there is at least
some DMT-n-Oxide present in our extractions.
Further, it's
been shown that
DMT behaves strangely in the presence of its oxide. The oxide seems to inhibit the DMT from crystallizing, even in very trace amounts. The resulting homogeneous mixture presents as a sticky goo, tinted anywhere from pale yellow to dark reddish-orange by the oxide present.
Goo is not evidence for oxide, goo is a result that can happen with dmt of ANY purity. Crystallization is not always a given with molecules that have properties that say otherwise (i.e. polymorphism). It has never been argued that oxide is not a side product, particularly with sunlight, all amines react with oxygen and light, that is what gives aliphatic amines their characteristic yellow discolouration. Try distilling any amine, it will be colourless at first and then eventually discolor despite your best efforts. The reason why you don't see any DMT n-oxide as a product of extractions, is because it is not soluble in the non-polar phase, especially if you are extracting from basified aqueous water, which it is extremely soluble in and forms powerful ion-dipole hydrogen bonds (50 kJ/mol) many times more powerful than the solvation forces.
IridiumAndLace wrote:I would further postulate that DMT is capable of forming a complex with the oxide, such that the FB facilitates the oxide dissolving into NPS where it would otherwise be insoluble. This may be particularly pronounced at temperatures above ~60°C, where DMT melts into a liquid that as far as I can tell, is more or less fully miscible in hot heptane.
This is not possible. See thermodynamic argument above.
IridiumAndLace wrote:This could explain why my pulls get redder and dirtier the hotter they are. Using ascorbic acid I pull at 60°C to avoid decomposing the ascorbate, and compared to pulling at 90°C using citric acid, my yields with ascorbic acid are both cleaner and smaller.
This is unscientific, you are fitting your theory to your observations, without any physical rational.
IridiumAndLace wrote:Loveall wrote:The only thing I've seen was an assumption that the oil was an oxide because (1) the orange color matched literature descriptions and (2) a "zinc reduction" turned it into xtals. BUT polymerized DMT can also be orange, and the 'zinc reduction' result is also compatible with simpler de-polymerization in acid of DMT, where zinc is not helping reduce anything.
I think you're begging the question. How does this explain what happened in the vial I was holding? I had to agitate it to dissolve the DMT into the citric acid. To reduce incidental oxygen I also replaced the air in the bottle (as much as was practical) with
relatively inert gas. It sat there for 20 minutes before I added the zinc, re-replaced the air, and shook it once. The color change was immediate.
Something got reduced in that jar, and the amount of trace impurities and free oxygen were not enough to explain the significant amount of zinc oxide that crashed out upon basing.
Zinc has a negative standard reduction potential. Meaning that it spontaneously is reduced in the presence of H+ (H2O). Simple proton is your oxidant, in this case. This is basic redox, the presence of Zn(OH)2 means nothing. A simple control experiment would have told you that too.
IridiumAndLace wrote:Loveall wrote:In fact, regarding (2), one can turn the oil into xtals with an acid treatment alone, no zinc is needed as later experiments showed.
If this were strictly true, it should work with acetic acid and it would be common knowledge that you can turn orange goo into white xtals by simply cooking it in vinegar. All your experiments demonstrating "acid depolymerization" that I could find included citric acid, ascorbic acid, or both; they're both reducing agents, whereas acetic acid is not.
Loveall wrote:Further, benzyme analyzed oil from a synthesis and found no oxides, instead he found mass peaks in multiples of DMT (compatible with aggregation/oligomers/polymerization).
I can't seem to find this post? Can you link it? If they were dealing with a large amount of DMT FB complexed with a small (or trace) amount of DMT-n-oxide, the presence of the oxide could have been obscured by a large amount of FB polymerized with it.
Loveall wrote:Therefore, it seems that calling the oil an oxide was a mistake. This highlights that it is important to confirm hypothesis with an analytical result (even if a couple observations match a particular hypothesis there can still be other explanations).
There is yet more evidence against the DMT oxide claim. Brennendes Wasser made DMT oxide with peroxide (confirmed analytically) and found that it is an orange wax that with a cherry flavor that is not active. That is not what we encounter in extractions where the orange oil does not smell like cherries (it smells like xtal DMT) and is active. Before these analytical results, people assumed that DMT oxide converted to DMT with heat, but that seems to be false based on Brennendes Wasser's results. Instead of a DMT oxide conversion with heat, they simply never had DMT oxide to begin with and made another false assumption to hold their previous false assumptions together.
I think completely discounting the possibility of the presence of DMT-n-Oxide in an oxidizing atmosphere is likewise a mistake. It's also a fallacy to assume my hypothesis is wrong just because others observed the same phenomenon and reached a similar conclusion but an incorrect mechanism.
Again, this is wrong. Not because that DMT oxide is not there, and not because that people don't falsely assume their 'red goo' is DMT N-oxide, when it is infact mostly DMT, you are absolutely right about that, and I really appreciated Brennendes Wasser's post on the photochemical DMT N-oxide with the NMR-data, although to confirm it would need to be cleaned up a bit, but its good enough for me to bet on based on what I've done as well with it.
But this is not about that, this is wrong because your proposal is thermodynamically incongruent.
You can test this yourself very easily, take a mixture of freebase DMT, and DMT N-oxide. I actually tried this synthesis the first time when I was just a highschool student, and posted it on this forum back in 2010. I also advised Brennendes Wasser on this method with h2o2 when he was working on it recently. If you prepare DMT-N-oxide successfully with h2o2, you will find it has very different properties compared to DMT. If you then mix it with freebase DMT, and attempt extraction with boiling naptha, you will find that the freebase DMT dissolves, while the DMT N-oxide separates and collects at the bottom as an oil. The hot naptha can be decanted, and allowed to cool, with pure dmt crystals forming. I always kind of thought maybe the separation might be difficult, because DMT-n-oxide is something of a surfactant (hydrophobic tryptamine tail, hydrophilic O- tail, but clearly, its not enough to have a real effect.
You should in theory be able to separate this from photochemical DMT N-oxide, but the only way your going to end up with a significant amount of DMT N-Oxide to test this is if you intentionally try to make it, most people don't let their naptha evap in direct sunlight, in this case you will want to.
In 2019 when I was working with different tryptamines, I did make some 5meo-DMT N-oxide as a curiosity and to get a NMR spectrum, I was able to reduce it back to DMT using NaBH4/MeOH quantitatively. I can't find the electronic data, i might have saved the print out somewhere.. I don't remember it smelling like cherries, however..
And also, before I forget... you will definitely 100% see N-oxide in LCMS electrospray mass spec... its an extremely sensitive mass spec that catches ions... and DMT N-oxide is permanently ionized, you would detect the M+1 (pka ~ 4) ion without a doubt.. its not going to be obscured. What I want to ask benzyme is if he has mass spec according to each of the peaks hes seeing in in chromatograph...
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IridiumAndLace wrote:I have a sneaky suspicion that we're both correct. I propose that even small amounts of DMT-n-Oxide can trigger the polymerization of DMT, which causes them to stubbornly move in tandem through aqueous and nonpolar phases where the oxide would not go if it was pure. The resulting mixture:
- Is active
- Because it's still largely n,n-DMT
- Is yellow to orange to red
- Tinted by the dark red oxide
- Fails to crystallize, remains oily/gooey
- Either due to polymerization, or because the amorphous oxide interferes with the formation of a DMT crystal structure, or both. Probably both, considering DMT is persnickety about crystallizing and doesn't mind spending a few days as a supercooled liquid anyway
- Is difficult to separate
- It persists until the oxide is reduced to DMT by zinc or a reducing acid, is incrementally removed through repeated A/B workups, or the polymer is degraded by a prolonged boil in NPS
This could even explain the vaping issue you pointed out; the oxide or oxide-FB-polymer could raise the boiling point of the mixture, to the point that it won't boil until the last of the oxide has decomposed.
That being said..... Again, there is a lot of misappropriating organic chemistry concepts here, that is where the confusion is coming here.
First off, you can't be using polymerization interchangeably with non-covalent complexation or aggregates. Polymerization means a molecule that is forming new covalent bonds with units of itself. Complexation or aggregation involves non-covalent intermolecular interactions. DMT N-oxide does not trigger either of these things.
IridiumAndLace wrote:I'm not making any hard assumptions here, I'm proposing a hypothesis and laying out my evidence for it. I assume you're doing the same, so, let's work together! I have an analytical balance with a 10ฮผg resolution and some **very** pure DMT to work with. In a few weeks I'll have all the apparatus I need to easily extract virtually all of the NPS-soluble substances from an aqueous solution. I'm willing to produce some DMT-n-oxide for the cause, if you'll help me devise an experimental protocol to help us settle the question of whether our polymerish goo contains DMT-n-oxide or not.
I respect that. I made a lot of errors when I was first learning and diving into organic chemistry, and I did it all here on this forum too. So I don't want to put a damper on anything, I know you're not making any hard assumptions but I think you have the cart before the horse on a few things, while overlooking some of the fundamental bedrock that theory is built on. You've made some good points here, I am trying to reel so it back in.
for example:
Quote:Probably both, considering DMT is persnickety about crystallizing and doesn't mind spending a few days as a supercooled liquid anyway
This is arguably the most accurate thing you could say, DMT is persnickety about crystallizing. And that is the source of this confusion, but none of it is related to polymerization or the extraction conditions or dmt n-oxide, that is all jut adding to the confusion. And it is not because it is a supercooled liquid. Thermodynamically it is different. A supercooled liquid would be liquid because of an activation barrier, but not because of melting point depressing or crystallization inhibiting polymorphs. A supercooled solution doesn't possess these properties, and so would crystallize instantaneously given a small push. DMT does not do this so easily, because it is not simply supercooled. Trace solvent, other factors can contribute as well to the lack of crystallization.
Expect nothing, Receive everything.
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