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Description

Parcly Taxel: After seeing how the cutie map in Twilight’s castle is sweet enough to notify you of any problems in far-away places via your cutie mark I was wondering whether to have something similar in my house (which is a castle in a way). I don’t like having obvious magical artefacts in my house, though - I prefer plain and simple mechanical instruments for the doors and such - so I just made a new crown and saddlebag for myself.

safe2249198 artist:parclytaxel1539 oc987254 oc only721742 oc:parcly taxel503 alicorn331880 genie1848 genie pony501 pony1680418 albumin flask316 15-crown-51 accessory2224 alicorn oc37832 bag10480 blue diamond (diamond)31 chemistry443 crown32196 crown ether1 diamond1222 eyes closed146255 floating6124 gem11451 high res411949 horn231250 horn ring8118 key sync17 levitation16915 lineart24749 meditating342 meditation164 monochrome179278 new crown410 pun9113 ruby622 saddle bag8647 science1369 solo1490723 spirit610 third eye334 traditional art147983 visual pun2421

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Parcly Taxel
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Princess of Science
@FanOfMostEverything Parcly’s crown merely doubles as a molecular model of 15-crown-5; it does not contain the molecule per se but is instead made of platinum and gemstones.
 
The crown ethers are cyclic ethylene oxide polymers and their variants; because of their large ring size they can chelate various cations in their “holes” - they are most commonly used to characterise unstable anions as their alkali metal/crown ether salts. 12-Crown-4 (4 units) chelates lithium, 15-crown-5 (5×) chelates sodium and 18-crown-6 (6×) chelates potassium or hydronium.