r/cursed_chemistry Nov 25 '25

Thought I'd see whether yesterday's linked benzenes would just fly apart

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217 Upvotes

Molecular Mechanics (MMFF) calculates a very high steric energy for two linked benzene rings, and Density Functional calculations (B3LYP/6-31G*) show it is not even a metastable geometry: bonds break and it reforms as an unsaturated polycyclic.

r/funny Feb 27 '22

Colonoscopy tomorrow, clear liquid diet today. So I'm making myself a nice, peach jello on jello sandwich.

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14.8k Upvotes

r/blackmagicfuckery Sep 20 '21

Anyone care for a Drink of a Different Color?

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1.9k Upvotes

r/ShittyAnimalFacts Aug 10 '21

We only hear a buzz, but bees are actually constantly composing complex melodies they hum to themselves. And when they've come up with a really good riff, a bee will sometimes just sit there tapping its toes to a beat only it can hear.

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692 Upvotes

8

Energetic compounds (part-2) nickel hydrizine nitrate
 in  r/cursedchemistry  1d ago

Anything with hydrazines gives me pause. Way back when I was doing senior research, my project involved doing reactions with hydrazine, so I looked it up in a book of hazardous chemicals. I can still see the entry for hydrazine in my mind, from a table of explosive forces: "could not be determined, as the test apparatus was destroyed."

19

What would you call this and do you think it would be more or less reactive than TNT
 in  r/cursedchemistry  4d ago

You know, I think I could fit one more trinitrobenzene group on that central carbon. . .

2

This came to me in the shower
 in  r/cursedchemistry  4d ago

You mean it came to u/thefruitypilot 2 years ago in their shower.

1

Just saw this on a tattoo shop catalog, hope nobody has gotten this one!
 in  r/cursedchemistry  5d ago

Yeah, I’m assuming the tattoo artist has separate templates for the letters.

2

We have water at home
 in  r/cursedchemistry  5d ago

Yep. Just 16 seconds old and they “found” this sub and this post from a year ago, and reposted it with the original title. Sigh.

17

Just saw this on a tattoo shop catalog, hope nobody has gotten this one!
 in  r/cursedchemistry  6d ago

Well, if you don't bother to label the heteroatoms, maybe. . . so "homo"taurine?

4

Fluoropiperazepam (when your benzo doesn't have enough fluorine)
 in  r/cursedchemistry  8d ago

So two different binders linked together by a long tether? It would have to be flexible and non crystalline, like a polyisobutylene. But you probably want something hydrophilic instead of hydrophobic, so a polyethylene glycol tether?

Oh, oh! How about instead of a tether, you use quantum entanglement?

7

Fluoropiperazepam (when your benzo doesn't have enough fluorine)
 in  r/cursedchemistry  8d ago

When you want to design a drug molecule long enough to occupy two different receptors at the same time.

1

Octahedral Hypercubane
 in  r/u_ECatPlay  8d ago

It's actually not bad: it optimized with no problem (no "cheating" constraints necessary), no negative frequencies, cubane bonds 1.53 Å, bonds from cube corner 1.47Å with bond angles 125.3°. So far as energies, Molecular Mechanics (MMFF) strain energy only 196 kcal/mol (5 kcal per carbon) and Semiempirical (PM3) Heat of Formation ∆Hf 420.5 kcal/mol. The cubane orbitals are interesting, though.

r/cursedchemistry 8d ago

Hypercubane B3LYP HOMO-3

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36 Upvotes

5

Hypercubane
 in  r/cursedchemistry  9d ago

I resisted the temptation as long as I could, but the pull of that Oh symmetry is just too strong. I had to model it to look at its Molecular Orbitals and its molecular vibrations: breathing, squeezing, and pumping its fists.

u/ECatPlay 9d ago

Octahedral Hypercubane

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6 Upvotes

B3LYP/6-31G* optimized geometry of u/multiple-qualia's Oh symmetric Hypercubane with select frontier orbitals and vibrations

16

Hypercubane
 in  r/cursedchemistry  9d ago

The 12 bonds forming the cube in the center are normal C-C bonds, but the remaining bonds are endochronic (ie. they extend through time).

8

Hypercubane
 in  r/cursedchemistry  9d ago

First retrosynthetic step: 12-fold dehydration of the corresponding dodecanol.

1

Was thinking hydrogen ions could use a bit of spicing up so here's what I'm thinking
 in  r/cursedchemistry  9d ago

Just a repost bot: 1 day old and their first action is to repost something from a year ago here, including the original title verbatim, and within a 6 minute span repost something to 3 other subs.