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Wikipedia:WikiProject Chemistry/Image Request/Archive02

< Wikipedia:WikiProject Chemistry‎ | Image Request

Fulfilled/expired requests

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I've made a new image, which seems to look ok. I've replaced the .png image on the Bupropion page, I take it this is what it was intended for?  David-i98 (talk) 00:46, 3 January 2008 (UTC)[reply]
Got an image of a couple types. I don't have anything to pack them with right now, but I'll try to grab another picture of one when I do.   Bfesser 03:49, 25 February 2007 (UTC)[reply]
That's great! Thanks! --Rifleman 82 06:03, 25 February 2007 (UTC)[reply]
Done.   --Ed (Edgar181) 19:03, 1 February 2007 (UTC)[reply]

Images for these please (with numbering):

-- Quantockgoblin 11:51, 26 January 2007 (UTC)[reply]

Done:     --Ed (Edgar181) 16:41, 2 February 2007 (UTC)[reply]
Voilà:  . Ben 10:44, 6 February 2007 (UTC)[reply]
  • I believe these need some sterochemisty:
Methadone

-- Quantockgoblin 18:25, 29 January 2007 (UTC) thanks[reply]

Methadone seems to be used as a racemate - the CAS number in the article is for (+/-)-methadone. --Ed (Edgar181) 19:03, 1 February 2007 (UTC)[reply]
  • For alkane article please can I have the all possible C4-alkane isomers (i.e. n-butane, isobutane, cyclobutane and methylcyclopropane as a composite image. Also do anyone think it is reasonable to include the cyclobutane with a bridging carbon-carbon bond (i.e. like two triangles back to back) - does it even exist as an intermediate? Currently there is an incomplete list of all possible C5-isomers on the alkane page. I'd like to replace that image with the one requested. Also, we are typing to make alkane a featured article, it would be great if you can make the iamge nice on the eye. -- Quantockgoblin 00:40, 6 February 2007 (UTC)[reply]
  • - done (at low-ish resolution) - I'm sure someone can do it at higher and with svg?
Do you mean SVG for the skeletal formulae or the ball-and-stick models? The latter usually look better as hi-res PNG. Fvasconcellos 17:21, 11 February 2007 (UTC)[reply]
  • Actually before you kindly do anything, I've just thought, are cyclic alkanes strictly isomer of straight chain alkanes e.g. hexane C6H14 and cyclohexane C6H12 have different chemical formula! If they are not isomers (which now I suspect) then maybe I don't need the image as it is factually incorrect. The 'isomers' I have drawn are just C4-analogs!?! --Quantockgoblin 21:45, 11 February 2007 (UTC)[reply]
Cycloalkanes are isomeric with alkenes - they have the general formula CnH2n. What you want are all the possible isomers with formula C4H10.Ben 21:48, 11 February 2007 (UTC)[reply]
 
Well that's only butane and isobutane unless I'm very mistaken. Fvasconcellos 22:08, 11 February 2007 (UTC)[reply]
Correct! -- Ben 22:10, 11 February 2007 (UTC)[reply]
LOL. Thank you for validating—do we need a reference for that? :D Fvasconcellos 22:13, 11 February 2007 (UTC)[reply]
Will do. Done—how's this to the left? Is the file too big, and is the filename OK? I couldn't think of what to call it :) Fvasconcellos 12:27, 12 February 2007 (UTC)[reply]
Done by User:Jrockley
-- thanks Quantockgoblin 11:54, 26 January 2007 (UTC)[reply]
Here we go:        File:1,2,3-triazole numbering.pngFile:1,2,3,4-tetrazine numbering.png--Ed (Edgar181) 15:53, 21 February 2007 (UTC)[reply]
Well done! -- Quantockgoblin 20:43, 27 February 2007 (UTC)[reply]


Done - thanks David.Throop 15:27, 4 March 2007 (UTC)[reply]
  • Uracil seems to have a problem, a user left the note "This scheme and the sentence are wrong : a tautomeric equilibrium is between two different molecular forms (as shown, with proton(s) transfered from one site to another), but a double arrow must be used. Resonance structures show the electrons (usually pi electrons), for an unique molecular structure, localized in different parts of the molecule. This is symbolized by the arrow with two heads as on this drawing. The resonance theory helps understanding the stability and reactivity of molecules. The two molecules shown have each their own resonance structures.". --Dirk Beetstra T C 17:08, 20 February 2008 (UTC)[reply]
  • Photo of a stable carbene. This is a bit of a wild request, but if people are still in the habit of subliming stable carbenes, perhaps they could take a photo and upload it. A nice way to sublime these carbenes (when free from metals) is to place a tight fitting rubber filtration cone (the sort used for getting a good seal when using a Buchner funnel) half way up the outside of a schlenk tube and fill it with dry-ice acetone and gently heat the crude solid carbene in the bottom of the schlenk tube with warm water whilst applying a vacuum. The carbene sublimes as a nice white band, perfect for a photo. I would do it myself, but I'm no longer in the lab. Quantockgoblin 18:00, 14 November 2006 (UTC)[reply]
  • A nice picture for {{chemical drawing needed}} (I would like to use this template outside the infoboxes to request images on chemistry pages where a picture would e.g. improve the explanation or replace wrong images with this template). Feel free to make something beautiful! --Dirk Beetstra T C 15:23, 4 March 2007 (UTC)[reply]
I have seen it, let's discuss it there. --Dirk Beetstra T C 17:08, 4 March 2007 (UTC)[reply]

Emulsion

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The image at that page when resized looks not very nice. Maybe our diagram/svg experts - User:Quantockgoblin or User:Fvasconcellos or anyone else would be interested? --Rifleman 82 16:37, 16 April 2007 (UTC)[reply]

I can take this on, if you'll wait until tomorrow :) Fvasconcellos (t·c) 16:45, 16 April 2007 (UTC)[reply]
That's great! No hurry! --Rifleman 82 17:18, 16 April 2007 (UTC)[reply]
How's this? I adapted the one we have right now; unfortunately the file came out quite large (520 KB). Fvasconcellos (t·c) 14:30, 17 April 2007 (UTC)[reply]
  • Copper aspirinate - space filling model of crystalline state, maybe? I'll take care of the reaction mechanisms Bfesser 03:28, 25 February 2007 (UTC)[reply]
    • Xray structure is reported in doi:10.1107/S0567740873006060 but I don't have access to that one or know where to find its coords online. Could probably fake it from the DMSO adduct Xray in doi:10.1007/s00775-005-0031-3? Probably better to have just (ball-and-)stick instead of real VdW space-filling since it's such a clustery thing. DMacks 08:26, 17 April 2007 (UTC)[reply]
  • Resonance structures for thiophene, pyrrole and furan -- Quantockgoblin 14:56, 4 March 2007 (UTC)[reply]
  • A picture of ethylene with internal coordinates marked. --HappyCamper 01:38, 2 April 2007 (UTC)[reply]
  • Potassium hydroxide and Rubidium oxide. Badagnani (talk) requested images for these articles on my talk page. I think it would be best to have crystal structure images such as the one already in sodium hydroxide (Image:Sodium-hydroxide-crystal-3D-vdW.png. I don't think I could created those images easily myself, so I've brought the request here. -- Ed (Edgar181) 13:43, 13 March 2008 (UTC)[reply]
Both done.
Ben (talk) 18:02, 18 July 2008 (UTC)[reply]

--Leyo 16:42, 20 August 2008 (UTC)[reply]

Thanks a lot. The images all look good to me. --Leyo 23:43, 20 August 2008 (UTC)[reply]
  • A graphic and/or a photograph of a (e.g. THF) still, used for distilling off solvents from a pot containing a desiccant/oxygen scavenger. The still I have in mind, from the bottom:
    • pot with a second neck for adding sodium and more solvent
    • pressure-equalizing dropping funnel modified with a neck (replace stopper with septum against N2 flow to draw off purified solvent)
    • Graham condenser to cool pure solvent vapors, with mouth of stopper connected to a N2 line connected to a bubbler. --Rifleman 82 (talk) 06:09, 18 July 2008 (UTC)[reply]
- or -
, the text can be changed - what dimensions do you need? --Quantockgoblin 18:46, 28 November 2006 (UTC)[reply]
      • Another option might be to use chemical hazards in some way e.g.
Quantockgoblin 21:48, 28 November 2006 (UTC)[reply]
I prefer the periodic table. Emphasizing the hazards of chemistry sends a bad message, in my opinion. --Ed (Edgar181) 13:25, 29 November 2006 (UTC)[reply]
Ed, I think you are right - I was looking for something with a bit more colour/oomph - (more arrrghh than oomph it would seem!!) --Quantockgoblin 13:54, 29 November 2006 (UTC)[reply]
What if we made a collage of materials? --HappyCamper 14:46, 8 December 2006 (UTC)[reply]
  • or maybe a bit chemistry apparatus "as seen on TV" e.g. (although I would need all the bits to be in the wrong order and some dry ice in there somewhere too!!):
or  
or  
or   - just as a sort of idea, can be fancied up a bit?
  - I don't have the skills to do this well but it's an idea that could be used?!

Not sure this thread is still "alive" but here are a few more sketched ideas (too physics-y?):

I think the Wiki-water molecule is great!

Ben (talk) 23:16, 14 April 2008 (UTC)[reply]


I'm editing Leukotriene. [1] says

The triene designation refers to the signature ultraviolet spectrum due to three conjugated double bonds. The subscript denotes the total number of double bonds - four when derived from arachidonate.

Could anybody supply that UV spectra?
David.Throop 17:03, 15 January 2007 (UTC)[reply]



I took a hand at drawing the various crystal field splittings using Dia but they look ugly. I was wondering if anyone would be willing to draw the diagrams for

They can be uploaded on commons and reused in crystal field theory. Just the simple ones. A useful link is here. --Rifleman 82 16:37, 16 April 2007 (UTC)[reply]


  • I think DMSO is often misrepresented as planner (i.e. sp2 at S). The S is tetrahedral like oxygen (SP3). The nice images on the DMSO pretty much give this impression, as does the image on the D-DMSO page. I would like someone to fix the images so they are more representative of the real sp3 S-center -- thanks Quantockgoblin 12:55, 18 April 2007 (UTC)[reply]
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