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Hi, I was just wondering if you could help me with a problem i have. I'm a 3rd year chemist and i'm trying to do a project that involves the mechanism of nitrosation of secondary amines by the nitrosonium cation. Don't suppose you know the mechanism for the reaction do you (arrow pushing organic mechanism, not the kinetic mechanism). Thanks Sameyley 15:01, 11 February 2007 (UTC)
Hi Ben,
MAO is a poorly-defined substance, it is believed to adopt a number of structures in solution - look out for papers by Tom Ziegler. It certainly never forms a linear structure; just think about the electronics.
Yeah. sorry, my mistake. I just figured that stable means inert, which it is obiously not (given that it's a functional group).. Thanks!! Koryeh 21:50, 10 January 2007 (UTC)
Ben, i came across several articles, Heroin being the most recent one, where the 3D images you have added to the unfoboxes are a bit "off" when it comes to their spacial position in relation to the main image - some of them need to be rotated "clock" or "counter-clock", some are even mirror images. It's not a big deal if you decide to leave them the way they are, though. -- Boris 22:17, 10 January 2007 (UTC)
Thanks for adding the 3D image to cannabidiol but please make sure that it is not just some picture from ACDLabs or ChemDraw. They do not necessarily reflect the real structure. It is better to calculate them with appropriate programs or use the crystal structure data from publications. -- Panoramix303 21:16, 3 December 2007 (UTC)
Hello, on your talk page you have indicated that you have a interest in chemestiry. Could you help me answer the following question?
Is the following proposed article on a real or made up subject?
Contact me at User talk:Natl1.--Natl1 (Talk Page) (Contribs) 22:27, 14 January 2007 (UTC)
Thanks very much for the space-filling image on the methylmercury page. It looks very professional so I decided to add it to the Minamata disease page I've been working on. Cheers! Bobo12345 06:37, 17 January 2007 (UTC)
Hi. If you correct skeletal formulas (ex. in Fluoxetine), you should rewrite their to SVG. BrokenglaSS 14:35, 22 January 2007 (UTC)
Hi Ben,
I just wanted to thank you for all of your fantastic work drawing 3D structures and crystal structures for so many compounds on Wikipedia. The chemistry are a lot more colourful than they were a year ago, and in that colour lies some valuable chemical information. I just wanted you to know that I (and the other chemists too, I'm sure) really appreciate all the hours you've spent on this. We don't traditionally give barnstars at WP:CHEMS, but free beer is something we have offered - much more tangible! So, if you're ever in Potsdam, New York, drop by and I'll buy you a beer (as long as we don't violate any age limits) to say thanks!
By the way, I did my BSc at Bristol, I graduated in 1981. Hope things work well for you there. Thanks, Walkerma 20:48, 22 January 2007 (UTC)
How accurate are your molecular images? Are bond angles accurate and atoms drawn to relative scale, etc? Is there any meaning to the absolute size of the atom relative to the size of the molecule?
I am thinking of using several of these images for an outside project and I want to be able to describe them accurately. Dragons flight 05:01, 29 January 2007 (UTC)
Yes, I'd prefer to be attributed as Ben Mills, but you don't have to attribute me at all - I put all my images in the public domain. All the articles you link to have accurate images. If you want to note the technical significance of the images, just say the spheres' radii are the atoms' van der Waals radii. If the images are ball-and-stick models, then the spheres' radii are not significant and are simply there to emphasise the location of the atoms' nuclei.
Here is a gallery of the images:
Enjoy!
Ben 11:05, 29 January 2007 (UTC)
The Hard Working Graphic Designer's Barnstars | |||
I've now copied 2 dozen models and structural formulae to help support my work, and remarkably all but two were created by you. Good job. Dragons flight 05:45, 31 January 2007 (UTC) |
Ben, I've created an SVG "facsimile" (well, I suppose not actually a facsimile since the font is a bit different) of Image:Chloroform-2D.png and added it to the chloroform article. Hopefully this one is more accurate than Image:Chloroform2.svg which was previously used to replace yours. Best, Fvasconcellos 13:07, 29 January 2007 (UTC)
Well, that is a bit exagerated, but still, now I have you attention. I have question/problem .. I have been working the last couple of days on ((chembox new)). This morning Ed asked me to add more images to that template. Easy .. done. Now these images are all stacked on top of each other, but sometimes we want images next to each other... Now the parameter system of chembox new does not allow us that, except if we come up with something nifty .. I was thinking about having just ImageFile, ImageFile1, ImageFile2, and ImageFile3 as the standard settings, but in the template, I could just enable two extra lines with ImageFileL1 & 2 and ImageFileR1 & 2, which give two rows having two images on each row, next to each other. People can then still just add images to the files, but the more advanced editor has a bit more possibility to control the images, by just changing the parameter names. Any ideas? --Dirk Beetstra T C 16:58, 3 February 2007 (UTC)
Furfural looks good. Excellent work, Mr Chembox! I disagree with Wim that combined images are good. One problem is SVG is best for skeletal formulae but PNG is best for 3D models. A combined image would be a compromise in that respect. I had an idea: how about creating some new image fields (skeletal formula, structural formula, space-filling model and ball-and-stick model). With labels like that, having images one on top of the other would be fine. What do you think?
I'll do some testing of chembox new for you, Dirk. Watch this space.
Cheers
Ben 18:30, 3 February 2007 (UTC)
Excellent automagic! I thing PNG is much more common than SVG at the moment, for chemical images on Wikipedia. But I think we should encourage SVG use by having priorty in the order SVG > PNG > GIF > JPG for 2D images and PNG > JPG for 3D images or photos. Some contributors have made SVGs for 3D images of molecules (e.g. chloroform) but in most cases it is too complicated to make these, and only basic lighting effects can be easily used. Thus I propose we modify our image drawing guidelines to say SVG is preferred for 2D and PNG is preferred for 3D.
How does that sound?
Ben 13:40, 4 February 2007 (UTC)
Hi Ben
Would you care to tell me how you export your structures to SVG? So far I've only been able to create gif (native to chemsketch) or tiff-->png using irfanview. I can create emf or wmf vectors, but inkscape seems to choke on them. --Rifleman 82 11:44, 6 February 2007 (UTC)
I've considered those, but they all have varying degrees of problems. Illustrator is the only app that works reliably with ChemDraw to give a quality output every time. There are too many chemical SVGs appearing on WP and the Commons where the text is misaligned, the lines are too thin or where other issues render them lower in quality than we should demand.
Ben 08:31, 24 February 2007 (UTC)
Hey Ben: Here's the quote: "The Re-0-Re angle is practically 180" - a rare situation. ...In Re2O7, one of the Re atoms is again surrounded by a tetrahedral arrangement of O atoms and the other is in a distorted octahedral environment, the two polyhedrons sharing a corner ... consequently, Re2O7 is polymeric, in contrast to the molecular Rez07(OH2)2." So yes, 180°. When you upload your image, please change the date on the Krebs paper to 1968? --Smokefoot 20:00, 14 February 2007 (UTC)
Hello Ben-
Thank you for submitting the 3D images for hexamethyl tungsten. Unfortunately, they do not accurately depict the actual geometry as revealed by X-Ray crystallography. Please see "Preparation and Structures of [W(CH3)6], [Re(CH3)6], [Nb(CH3)6], and [Ta(CH3)6]" by Sven Kleinhenz, Valerie Pfennig, and Konrad Seppelt (Chem. Eur. J. 1998, 4, No. 9, 1687-1691) for the correct structure. It should have C3v symmetry, with careful alignment of methyl protons. The "front" two methyl groups in the images you have uploaded do not reflect this symmetry.
Thanks-
Tyler Matthews 06:22, 2 March 2007 (UTC)
Hi, I wondered if you could give me a bit of help - I am confused in the difference/ similarity of IUPAC naming, to Systematic naming. From the article IUPAC nomenclature of organic chemistry, it sounds as though the systematic name is the one which is constructed from the prefixes and suffixes with chain lengths. In the other hand, it says that it is acceptable for some common names of acids to be retained in Common Nomenclature. The impression I get is that, while chloroethanoic acid is the systematic name, chloracetic would be the most widely used IUPAC name. Am I misreading the article, or misunderstanding the terms?
Also, does the trichloroacetic acid page need its systematic name changed from trichloro ethanoic?
Thank you for your help Conrad.Irwin 23:32, 18 March 2007 (UTC)
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Hi Ben! I wonder if you could help draw an image for molecular vibration? Could you do a stick figure of BF3 but with extra labels? We're looking for an image with the plane, angles, and arms labeled. For the angles, say α12, α23, α13? And somewhere outside the molecule, just π to indicate the mirror plane. And 3 arrows labeled r1, r2, and r3 sitting parallel (but not on top of) the three B-F bonds? Maybe highlight the labels or something with a different color. Let me know if you'd be able to do this - it would really help with what we are planning for the page. Take care! --HappyCamper 15:30, 5 April 2007 (UTC)
Sure, no problem. I enjoyed making those!
All the best.
Hi Ben. I just noticed this, and was wondering, may I use it as my default when making models? I've been "eyeballing" the colors to match those on your models for consistency, but this would be considerably easier :) If you have a problem with my shamelessly ripping off your style, please let me know. Best, Fvasconcellos 15:50, 5 April 2007 (UTC)
I will make some more. It's just a bit disheartening when you spend time on a PNG skeletal structure and two days later someone supersedes it with an SVG. If, by making a PNG, I encourage an SVG version to be created then that's great.
Hi Ben, I was just reviewing the skeletal formula page, and noticed this "blooper". Can you fix C-2? Thanks, Walkerma 04:36, 12 April 2007 (UTC)
Only 3 Carbons should be in the imidazole ring. I took it down temporarily from Clotrimazole, you can put it back after you redraw it. -- Boris 01:52, 28 April 2007 (UTC)
Don't worry, I guessed that you didn't quite realise that you could do many (but not all) of these renames by yourself—as I said on WT:CHEMS, no harm done! Best of luck at Bristol, and thanks for your continued contirbutions. Physchim62 (talk) 11:38, 30 April 2007 (UTC)
Thank you for pointing this out to me, Mr. Ben. Your epithet should be "The Nice Guy" or something like that. I changed "ions" to "oxidation states", which (correct me if I am wrong) is more accurate. Thanks again for your help! —The preceding unsigned comment was added by Awesome Truck Ramp (talk • contribs) 00:40, 4 May 2007 (UTC).
Holleman and Wiberg indicates that this stuff is 2-d in solid and dimeric in gas phase. I'll look for some ref or review on M-O-X cmpds to confirm. I fixed the imidazoline thing.--Smokefoot 00:49, 6 May 2007 (UTC)
William J. Evans, Tammy S. Gummersheimer, and Joseph W. Ziller J. Am. Chem. Soc.; 1995; 117(35) pp 8999 - 9002; DOI: 10.1021/ja00140a016. I think that most of the SmI2 chem uses the stuff in ethers. I glimpsed at the structures - trans iodides and a belt of five ethers on the equator. A quote "SmI2(THF)2 is likely to be oligomeric in the solid state, since it is improbable that this compound exists as a simple four-coordinate structure. Smz+ is a large ion" which can support coordination numbers as large as ten, and X-ray crystallographic studies have shown that eight-coordinate structures are quite common for Sm2+."--Smokefoot 21:48, 6 May 2007 (UTC)
Wicked, thanks Smoke.
Thanks! I think I'm starting to get the hang of it now, your advice has really helped. And you're right, the unified color scheme looks a lot better. Sbrools (talk . contribs) 15:42, 6 May 2007 (UTC)
Thanks for them! One improvement would be to try to put the 3D images in the same orientation as the stick structures. For example, consider the cyclopentadiene images in terms of rotation of the ring (look at where the CH2 carbon is). Even for a non-novice chemist, the more "chemically irrelevant" things that change from one representation to another, the harder it is to figure out what is important and how things correspond. DMacks 08:17, 7 May 2007 (UTC)
Hi Ben
Perhaps you can tweak this image... by replacing Cl- with X- for consistency? --Rifleman 82 07:07, 11 May 2007 (UTC)
Thanks for uploading Image:Ben's-molecular-model-palette.png. The image description page currently specifies that the image is non-free and may only be used on Wikipedia under a claim of fair use. However, the image is currently orphaned, meaning that it is not used in any articles on Wikipedia. If the image was previously in an article, please go to the article and see why it was removed. You may add it back if you think that that will be useful. However, please note that images for which a replacement could be created are not acceptable under fair use (see our fair use policy).
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I noticed that you created images such as Image:Cadmium-chloride-3D-polyhedra.png and this one Image:Lithium-iodide-3D-ionic.png, and if you don't mind me asking, I was wondering how you made them. I can make the organic molecules, but I can't figure out how to make these. Thanks! Sbrools (talk . contribs) 00:27, 12 May 2007 (UTC)
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I missed it too, all Sb's are octahedral, right? Hundreds of school reports around the world are incorrect!--Smokefoot 17:57, 23 May 2007 (UTC)
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Thanks for your contribution, Ben, to chemical equilibrium. We have a general problem in this and other articles of relating the size of text and maths characters. I see how you have ensured that the maths characters come out "large", but don't understand the sequence \,\!. What would be really good would be to get all the maths characters to the same size as the in the text, but no-one seems to know how to do this. At present it looks messy, particularly because the equilibrium constant, K, appears in both with different sizes. Any ideas?
BTW metavanadate (vanadyl ion) is better written as (VO3)n- as it is a long chain polymer of VO4 tetrahedra, sharing two corners each. The polyvanadate system is very complex. See the chapter on vanadium in Chemistry of the Elements by my old friends Norman and Alan. Petergans 10:15, 4 June 2007 (UTC)
Hi Ben. You might want to check out a recent comment at Talk:Camphor. An editor has noticed that the bridgehead methyl group in your 3D model is missing. Should be a quick fix. Thanks. --Ed (Edgar181) 19:29, 5 July 2007 (UTC)
IMO the structure is made clear with the text representation, with the proper stereochemistry, while the space filling one is more for looks. But, if you wish to keep the b&s model of chloroform, fine with me. --Russoc4 15:12, 8 July 2007 (UTC)
Hi, since you seem to love making pictures of molecule (and I don't ;-), perhaps you can help with this one. The structure of dimethoxymethane is "wrong" in the sense that it is not showing the lowest energy conformer. As the article says, due to the anomeric effect, the gauche,gauche conformation is more stable than the anti,anti. See for example [1] and [2]. Cheers, Itub 08:02, 10 July 2007 (UTC).
Not a problem! Thanks for introducing me to (MeO)2CH2.
Thanks for the response. I have downloaded visualizer and I am trying it out. If I get stuck I shall get back to you if thats OK. Axiosaurus 18:15, 28 July 2007 (UTC).
Cheers Axiosaurus 16:47, 29 July 2007 (UTC) Just noticed you're from Odell- know it a bit- btother-in-laws family lived there some years back so were there quite often at one stage--nice place--but I am a village fan.Axiosaurus 16:50, 29 July 2007 (UTC)
Oh really? Small world! Are you still in the UK?
To save image, go File > Save As... > select Image Files (*.png, *.jpeg, *.jpg, *.bmp) from the Files of type: drop down menu and click Save. Then set Height to 2000 px and click Keep Aspect Ratio. You can then edit the image you've created in Photoshop or similar.
Then upload to Wikimedia Commons, filling in the required fields and adding to Category:Molybdenum compounds
If you don't have appropriate software, you can email the raw image to me for processing.
Cheers
Just getting to grips with a new to me photoeditor - if I fail I might just take you up on your offer. In answer to your question -yes still in the UK up in Northumberland--its north of Hadrians wall but is in England! Just a thought-can I e-mail you via wiki or would I need your e-mail address? Cheers Axiosaurus 19:59, 29 July 2007 (UTC)
thanks. By the way we have had lovely dry warm weather up here recently! Axiosaurus 08:33, 30 July 2007 (UTC)
There are a lot of crystallographic structures where the CIf file is released. Having used Visualizer on some polyoxos I was surprised to see it lost atoms! EnCyfer (free from cambridge uni) works a lot better but unfortunately you can't do much with the image apart from edit the CIF,but vizualizer doesn't like some CIFs that enCifer reads OK, so bodging CIFS is more difficult than I had hoped. Have you any idea whether taking a CIF file and producing an image from it is allowed in principle on Wiki? Axiosaurus 16:17, 31 July 2007 (UTC)
We (Nick Day and I) have created | crystalEye which is collecting all public CIFs. It also has a checker. You can take any images from that as it is Open Data Petermr 21:08, 23 September 2007 (UTC)
Hi Ben, purely because the lead comment says that UK spelling is used in the article. Thanks for changing those back, I will fix the comment. Rich Farmbrough, 13:50 15 August 2007 (GMT).
Hello. Please check my talk as you said "but it is certainly from the nitrogen atoms." do you mean not from nitrogen atoms? —The preceding unsigned comment was added by Phgao (talk • contribs) 13:58:39, August 19, 2007 (UTC).
Hey, nice diagrams!
If you would, please double check your second (Cis-[Cu(CO3)2(OH)2]4−) coordination environment image. There is a strong proximity asymmetry perpendicular to the plane, with a carbonate ion close on one side of the plane and a vacancy on the other. In the JavaMage reconstructions referenced in the article, this upper carbonate is shown as participating in the copper environment to give a 4-sided pyramidal geometry, rather than a planar-only enviroment. Cheers, Terry Bollinger 01:36, 21 August 2007 (UTC)
Hi Ben. Thanks for posting a new image of borazine on the borazine page. I am wondering if you may have left out the double bonds unintentionally? My inorganic textbook shows [[Image:Borazine-2D.png]] as the correct one. Thanks, Jeff Dahl 20:32, 5 September 2007 (UTC)
What was the reason to revert back to the previous version?
WriterHound 00:17, 9 September 2007 (UTC)
I believe it stands for radical. See side chain.
Ben 00:40, 9 September 2007 (UTC)
Yours is right, after a little Google searching. I actually just copied the image I had already made to a better format, I don't know why no one told me it was wrong all this time. I'd better start double-checking these things better. Thanks for the heads-up. shoy 22:54, 26 September 2007 (UTC)
Hi Ben, I thought you'd like to know that I gave Image:Glutathione-skeletal.svg a once-over (a couple of font fixes, some margins to match your usual style), as it wasn't displaying properly, and re-uploaded it at Commons. I hope you won't mind; if you do, feel free to revert back. Best, Fvasconcellos (t·c) 23:58, 1 October 2007 (UTC)
Great image! --Ed (Edgar181) 17:38, 22 October 2007 (UTC)
Thanks for uploading Image:Lys-stick.png. I noticed that the file's description page currently doesn't specify who created the content, so the copyright status is unclear. If you did not create this file yourself, then you will need to specify the owner of the copyright. If you obtained it from a website, then a link to the website from which it was taken, together with a restatement of that website's terms of use of its content, is usually sufficient information. However, if the copyright holder is different from the website's publisher, then their copyright should also be acknowledged.
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Before you re-rev up your machine on Co2(CO)8, I am not quite finished redrawing this thing. The unbridged isomer is, I think, staggered. Keep up nice work.--Smokefoot (talk) 01:02, 18 November 2007 (UTC)
Hi Ben, I left a comment above at User talk:Benjah-bmm27#Hexamethyltungsten structure. Since you haven't replied, which is uncharacteristic of you, I was wondering if perhaps you didn't see it since it was not at the bottom of the page (I chose to append my comment to an existing thread rather than starting a new one). In any case, this is not to pressure you, you only have to update the figure if you are interested. I just wanted to make sure that you saw the message. :-) Cheers, Itub (talk) 15:22, 28 November 2007 (UTC)
Thanks for alerting me to this error! I hope I have sufficiently fixed it.
-Benrr101 01:09, 1 December 2007 (UTC)
Nice! Axiosaurus 12:11, 1 December 2007 (UTC)
Hi Ben,
It's actually your images that got me interested (hooked?). I've made hundreds of these types of images using Accelrys of drugs, dyes, and various other organics which I intend to upload to Commons. I joined WikiProject Chemistry.
Your Making Molecules walkthrough was extremely helpful, but I am wondering whether or not some of the biologically important metals (such as Fe, Cu) should be coloured according to Jmol specification. The only noticable departures from that list and your palette save those metals are carbon and silicon, which I think are justified since Jmol's colours for those elements are not especially attractive.
Regards,
Ben —Preceding unsigned comment added by Ben Webber (talk • contribs) 19:56, 2 December 2007 (UTC)
Someone posted a note saying that the stereochemistry of the figure is wrong. I'm just letting you know in case you don't keep squalene on your watchlist. Have happy holidays and keep up the good work! :-) --Itub (talk) 16:20, 19 December 2007 (UTC)
This structure looks weird to me. Can you draw a nicer one? Thanks. -- 217.11.34.119 (talk) 11:54, 20 December 2007 (UTC)
This is an archive of past discussions. Do not edit the contents of this page. If you wish to start a new discussion or revive an old one, please do so on the current talk page. |