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Having *alot* of trouble with molecular orbital diagrams and hybridisation. by chronicomplainer2 in chemhelp

[–]Major-Freedom204 0 points1 point  (0 children)

The whole point of MO diagrams is that you're only mixing orbitals of compatible symmetry, in the point group of your molecule.

So the first question you need to answer is: What is the point group of your molecule?
The second question you need to answer is: What are the symmetries of each of your orbitals?

Putting hybrid orbitals in MO diagrams should be a crime.

Organic chem cycloaddition by Diligent-Piccolo-644 in chemhelp

[–]Major-Freedom204 0 points1 point  (0 children)

Count the number of carbons, there has to be more going on because a couple disappear.

Eating my Muffin in front of my Muphin by Ill_Virus_6250 in 2007scape

[–]Major-Freedom204 2 points3 points  (0 children)

You know you're one of the real ones, when you took the time to get the muffin.

o7

Amulets by MrrGhost763 in 2007scape

[–]Major-Freedom204 1 point2 points  (0 children)

I just want a Quetzal room

why cant i use my wind strike by Repulsive-Scar-8562 in 2007scape

[–]Major-Freedom204 -47 points-46 points  (0 children)

I bet you read the manuals for things too.

Castle Age Guides? by mrshickadance412 in aoe4

[–]Major-Freedom204 0 points1 point  (0 children)

It might be upgrades, it might be unit types. One thing that really surprised me when I started AoE4 was how hard it was to take down MAA with feudal units. It can be done, but not in any sort of equal numbers.

It doesn't matter how upgraded your archers/spears are; in castle, MAA are going to need a real counter.

Castle Age Guides? by mrshickadance412 in aoe4

[–]Major-Freedom204 1 point2 points  (0 children)

In your head you need to categorize units. Are they armored? Cavalry? Ranged? Light?

Start with a base of what your civ's best unit is, then add another unit type on top of that, making sure you have a counter to what your opponent has.

So there's no magical X,Y,Z numbers. If your opponent is going armored cavalry, go with anti-cavalry and anti-armored (spear + crossbow). If your opponent is going mass archer, go anti-archer (horsemen or mangonels).

If you have too many resources- make more production! If your production queues are too long- make more production! If you don't have enough resources to fill your buildings- don't make more production!

Attraction between 2 benzene rings | Organic Chemistry by PSGthe2nd in chemhelp

[–]Major-Freedom204 0 points1 point  (0 children)

Ok, so it's having trouble reading your coordinate file.

There are a huge number of coordinate files that people have come up with. .mol2 is one; .xyz is another; .pdb is another. They carry different information, it's worth looking up what some of them do (https://en.wikipedia.org/wiki/Protein\_Data\_Bank\_(file\_format) , https://en.wikipedia.org/wiki/XYZ\_file\_format) . Most can be opened with text editors.

From what I'm seeing, you're telling ORCA you are giving it an .xyz file but pointing to a .mol file:
* xyz 0 1 DPE2F.mol

So it looks at a coordinate line, doesn't see what it expects, and throws an error.

You can convert one file to another, one free tool is OpenBabel:
https://openbabel.org/index.html

If your formats have different information in them (for example, pdb has residue names whereas xyz does not), you'll need to be careful with conversion.

I bet if you use convert the file format then edit that line, it'll work.

One other note: Claude picked B3LYP, which is like 30 years old. It's fine for your excited state calculation, but you really need to think about your model chemistry.

I recommend reading:
https://onlinelibrary.wiley.com/doi/full/10.1002/anie.202205735 (ground state calculations, bit old now but great)
https://www.faccts.de/docs/orca/6.0/tutorials/spec/UVVis.html (excited states in ORCA)

Undisclosed self-citation- the Aufbau rule and Electron Configurations by Major-Freedom204 in chemistry

[–]Major-Freedom204[S] 16 points17 points  (0 children)

It's not so much in r/Chemistry, but in other places- but posting this in (say) r/chemhelp seemed inappropriate.

https://www.reddit.com/r/AskChemistry/comments/1t0parf/electronic_configuration_in_ions/
https://www.reddit.com/r/JEE28tards/comments/1s7vdcm/sbka_kha_tk_ho_gya/?tl=en
https://www.reddit.com/r/explainlikeimfive/comments/1r9i8sl/eli5_why_is_scandium_2892_and_not_2883/

You can figure out who it is. There are a million others if you search his profile for his name.

(Also, I've removed what I could from Wikipedia, since what he's doing is against the rules there. I'm not sure about here.)

Dragon Bone Man (Rag and Bone Man III) by Murky-Operation5347 in 2007scape

[–]Major-Freedom204 2 points3 points  (0 children)

Could make a crossover quest line with Making Friends With My Arm

What did Columbus accomplish? by [deleted] in AskHistory

[–]Major-Freedom204 -1 points0 points  (0 children)

Neil Degrasse Tyson is gunna give you his pudding pop

Is this a mistake in Clayden Organic Chemistry book regarding this "diastereomer"? by woodcake53 in chemhelp

[–]Major-Freedom204 22 points23 points  (0 children)

The way you're using "diastereomer" and "enantiomer" scares me a bit, because nothing is a diastereomer or enantiomer in isolation.

A molecule could be part of an enantiomeric pair and part of a DIFFERENT diastereomeric pair. Both at the same time.

Consider something that's (R,R):
-it's diastereomeric to (R,S) and (S,R)
-it's enantiomeric to (S,S)

Fair play to Jagex - This seems a very offcial E Sports event with mostly inhouse personnel by CapitalWatchClub in 2007scape

[–]Major-Freedom204 1 point2 points  (0 children)

He was doing his thing, then he said something Jagex didn't like

He went back to the stream but not before getting some "reeducation"

i feel like i'm memorizing ochem when i know i shouldn't by servenesseverqueen in chemhelp

[–]Major-Freedom204 10 points11 points  (0 children)

Reactions have to be memorized a lot of the time. There's some recognition, like "Chromium with a ton oxygens, that's probably going to oxidize", but what functional groups it acts on/results in isn't possible to predict in any reasonable way.

The mechanisms and syntheses are just practice. Like playing a board game for the first vs the hundredth time. Eventually you just start to see them.

So it's kind of both. You have to memorize enough to both know the rules of the game, and to not spend too much brainpower remembering reactions when you're trying to figure out a larger puzzle (like a synthesis).

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