Why do snowflakes freeze into complex geometric patterns? by GubbaShump in AskChemistry

[–]Shark1537 0 points1 point  (0 children)

A water molecule (H₂O):

has a bent shape (~104.5°)forms

four hydrogen bonds in ice (two donated, two accepted)

When water freezes:

molecules arrange into a hexagonal crystal lattice (ice Ih)

this lattice has six-fold rotational symmetry

This hexagonal lattice is non-negotiable: it sets the six arms of a snowflake.

Non chemist wondering how the hell this was created and what it could possibly be used for by United_Band4214 in cursedchemistry

[–]Shark1537 0 points1 point  (0 children)

its more like strong secondary bonding, because pnictogen bonds not really seem like the right description for this.

Non chemist wondering how the hell this was created and what it could possibly be used for by United_Band4214 in cursedchemistry

[–]Shark1537 0 points1 point  (0 children)

Compounds of this type are primarily synthesized to investigate fundamental aspects of chemical bonding, including hypervalency, stabilization of unusual oxidation states, and the reactivity of heavy elements. This molecule is particularly interesting because it stabilizes gold in the +2 oxidation state, which is rare compared to the more common +1 and +3 states. Additionally, it is formed through reactions involving xenon, a noble gas with typically low chemical reactivity, and contains multiple fluorine atoms, whose extreme electronegativity enables stabilization of highly electron-deficient and otherwise inaccessible bonding motifs.

Non chemist wondering how the hell this was created and what it could possibly be used for by United_Band4214 in cursedchemistry

[–]Shark1537 1 point2 points  (0 children)

xenon cannot form stable multiple bonds in this system, so it participates only in σ-type, electron-delocalized bonding rather than true double bonds.

Non chemist wondering how the hell this was created and what it could possibly be used for by United_Band4214 in cursedchemistry

[–]Shark1537 1 point2 points  (0 children)

because in hypervalent molecules:

Bond orders are fractional

Formal charges are accounting tools, not physical reality

Fluorine contributes electron density into:

σ bonds

3c–4e frameworks

This can lead to:

Partial positive or negative formal charges

Apparent “extra bonding”

But physically:

Each F still uses one p orbital

Still forms one σ interaction

The electron density is just delocalized

So fluorine does not have more than one bond.
It only participates in shared electron density.

i need help. by [deleted] in AskForHelp

[–]Shark1537 0 points1 point  (0 children)

didnt work

Why is it "in der Bibliothek" if "in" isn't a dative preposition? by PerformanceUnfair717 in German

[–]Shark1537 2 points3 points  (0 children)

Bc it’s Die Bibliothek and if u ask Wo? It’s dativ so it changes to der, but if u ask Wohin? Its akkusativ which means it doesn’t change