Knowledge (XXG)

:Manual of Style/Chemistry/Structure drawing - Knowledge (XXG)

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35: 1201:. This enables images to be used in other Knowledge (XXG) languages and other Wikimedia projects and makes updating images much easier, it also saves someone else having to move the structure to Commons later. It is also simpler to find images in the Commons category structure compared to Knowledge (XXG). To upload images to the Commons, you must be a registered user there. Due to the 1333: 435:. Other previous versions were called Accelrys Draw and SymyxDraw. The program can read and write many file formats, other than its proprietary sketch file format (.skc) and can export PNG files. If SVG files are required, it is recommended that structure diagrams be exported as enhanced metafiles (.emf) which can be read by Inkscape and other image editors.. 1409: 1266:{{Information | Description= {{en|Chemical structure of ]}} | Source= {{Own}} | Date= 2024-09-19 | Author= ~~~ | Permission= {{PD-chem}} | other_versions= }} == Comments == High-resolution black/white .PNG made with ] and ] — see ] for detailed instructions. Please drop me a note if you need the source file. ] 925:
is an easy to handle 3D-model generator of molecules, with the objective to execute the structural determination within a particular low time investment. This advantage is bought by a divergence from the ideal geometry. For instance, the program works with presets. To which extent these divergences
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The configuration is extremely limited and post-processing is likely required. The only useful thing in "Format → Drawing settings..." is "Double bond spacing", which should be set to 18% of bond length, i.e. 5 pixels (integers only!) for the default 25-pixel bonds. Actual pixel sizes don't matter
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file (.eps) - many of the Apple print drivers (an Apple printer is not required) that print to a PostScript printer can be set to EPS in the print dialog options, thus printing to a file generates an suitable EPS file (HP printers with PS in the name e.g. "HP LaserJet 2300 Series PS" also work -
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is not advised as it can cause accessibility problems on a white background. Within a given article, diagrams should be consistent, which means in most cases they should use black and white except as highlighting to emphasize a particular point in specific diagrams. In all cases the advice at
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to search these large databases by structure or substructure. The program can read and write in many file formats including export of PNG files. If SVG files are required, it is recommended that structure diagrams be exported as enhanced metafiles (.emf) which can be read by
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are tolerable depends on the individual case and on quality demands. CORINA is not “foolproof”. Pseudochirality centers may turn out as pitfalls (e.g. amines that are chiral in protonated form). These specifics are to be considered in the
1274:{{Information | Description= {{en|Chemical structure of ]}} | Source= {{Own}} | Date= 2024-09-19 | Author= ~~~ | Permission= {{PD-chem}} | other_versions= }} == Comments == CD-SVG file made with ] — see ] for detailed instructions. ] 1525: 938:
Most molecule editors cannot produce .PNG images directly with the requirements outlined above. The image processing step also allows a canvas (margin) to be added (this is usually absent from the molecule editor output).
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There tends to be an unreasonably large margin left around the diagram's extents, so it is often a good idea to crop the image in a vector program such as Inkscape before uploading it. Leave a small margin of 1.6 pt.
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This image of a simple structural formula is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship
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SVG images are desirable because they are infinitely scalable, while remaining compact. However, support for SVG images among common molecule editors is limited, and may not be rendered correctly on Knowledge
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to make the background transparent. Another option is to open the file with Inkscape, right-click on the structure and select "Ungroup", then click anywhere on the white background and hit delete, then save
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Draw the structure in your molecule editor (ideally change the settings to give a molecule twice the size as the JACS standard or change the size to 200% before next step), and save it as an
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format. PNG images should be around 600–720 dpi. A transparent background should be used. Images should still be readable when scaled down to 450 pixels to prevent conflicts with the
150: 953:(2007) cannot save black and white TIFF images. Therefore, save as a 1200 dpi greyscale TIFF image and decrease the color depth to 2 bit (black and white) during image processing. 461:
If you drew the structure before applying any settings, then you need to select the object, open the “Object” menu and choose “Apply document settings from → ACS Document 1996”.
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Save as: TIFF black/white bitmap with a resolution of 720 dpi (small molecules) to 240 dpi (large molecules) (in ChemDraw under the Options button in the Save as TIFF dialog).
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files are preferred, because they are smaller in filesize, can generate high quality images for printing and are easier to translate if text is added to mechanism.
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For articles on racemates, the stereochemistry should be depicted as undefined (straight and not wavy nor wedged bonds attached to the stereogenic center).
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NB:SymyxDraw will usually add a full page rectangle to the drawing - ungroup, select rectangle and delete, then select all and re-group structure.
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Alternative (but little more complex) way to generate high quality and small size SVG files. One needs to download and install both Scribus and
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The use of explicit methyl groups in the following cases is a stylistic choice, and both forms are generally acceptable on Knowledge (XXG):
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Add canvas of about 5% to each side (test it, usually around 30 pixels) (Photoshop: Image:Canvas Size, relative, 10% width, 10% height)
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Open the PostScript file in Scribus. Note the image size and set the paper size to about 10px larger than the largest dimension.
1492:. A guide to drawing chemical structures. Covers topics such as the use of wedged and wavy bonds, bond angles, and perspective. 465: 43: 1341: 1294: 1240: 363:
Scanned images tend to be of poor quality. Scanned images of books or journals may violate copyright. Do not upload them.
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settings should be used for both structures and reaction schemes. These settings are normally available as templates in
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It is not necessary to color-code atoms according to element in structure drawings but if done the conventions of the
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This page provides additional information about concepts in the page(s) it supplements. This page is not one of
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These guidelines are necessarily quite technical, and are intended for editors with some experience of drawing
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Also recommended: For minus symbols on atoms, change the font for the minus symbol to “Symbol” for clarity.
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If labels for structures are desired, consider the use of bolded numerals, which are language-neutral.
1206: 428: 332: 285:). The use of “Et”, “Pr”, etc., is discouraged. By default, “Ph” denotes phenyl and “X” halogen. 155: 1486: 1306: 1194: 922: 1220: 1138:
Resize the picture about 400%, then click to File→Document Properties→Fit page to selection.
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Browse to your file and select it. Optionally, change the final image name in the box below
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Do not select a licensing from the upload form — the tags are already in the pasted text
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Replace the “...” with the Knowledge (XXG) article name and your username, respectively
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Do not include English text in images: this prevents their reuse in other languages.
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There is a free, open source program called WinDrawChem (the Windows version of
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From the “File” menu, choose “Apply document settings from → ACS Document 1996”.
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and reaction schemes. For a less technical overview of the issues involved, see
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Draw the structure in your molecule editor, and save it as a Windows Metafile (
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Save as a PNG black/white bitmap (color depth: 2) with transparent background.
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Change your structure to the most specific subcategory (or subcategories) of
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ChemDraw exports svgs with a white background. You may use the vbs script at
391:. It has comprehensive chemical drawing features and can directly connect to 281:”). This is to avoid confusion with “Me”, the German abbreviation for metal ( 638: 594: 586: 469: 424: 930:
code, i.e. the correct relative energy minimum is to be manually assured.
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Chemical structures and reaction schemes should conform to the following:
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From the "Options" menu, choose "Set Structure Drawing Style" → ACS Style
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methyl groups attached to a ring or as branches in a longer carbon chain;
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Knowledge (XXG) essays and information pages about the Manual of Style
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scheme should be used. Note, however, that the use of yellow () for
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is freeware available for personal, home, and educational use from
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Select the molecule and click Path→Object to path. (to workaround
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Then save it as a PNG file, to be read by an image editor such as
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Explanatory essay about Knowledge (XXG):Manual of Style/Chemistry
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Change the filename extension to “.svg” or choose the file type
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Export the file as PNG or EMF for further processing (see below)
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and freely available for academic and non-commercial users from
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Export the file as PNG or EMF for further processing (see below)
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The following two changes in font may be performed by going to
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Choose Scalable Vector Graphics (*.svg) as the save as format.
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From the "Options" menu, choose "Load Settings" → ACS document
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should be included if available (e.g. by using wedged bonds).
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C:\Documents and Settings\{username}\application data\bkchem
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The following templates can be used on Knowledge (XXG) and
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ideal for Windows 7 where Apple drivers are hard to find)
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Graphical Representation of Stereochemical Configuration
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converter and you should end up with a very light SVG.
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Indexes used for labelling must be superscripted: R-CH
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Carbon labels: Never (which may be done by going to
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The quality of this chemical structure is disputed.
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supports this, as does ChemSketch and BIOVIA Draw (
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Draw the structure, and save it as a ChemDraw file.
423:BIOVIA Draw is the current version of the original 1214:uploaded images must have a correct copyright tag: 544:The following three may be performed by going to 1205:, you might already have an account on Commons ( 597:users should follow the XDrawChem article link. 573:Stereocenter display may be enabled by choosing 569:Down wedge orientation: Points Upward (Daylight) 507:Bond angles and length: “fixed” is recommended 1148:Click File→Save as to save file as Plain SVG. 1060:Scalable Vector Graphics / SVG (*.svg *.svgz) 668:"http://www.freesoftware.fsf.org/bkchem/cdml" 8: 958:Image processing (Photoshop or Irfan view): 609:There is a free, open source program called 601:considering we will be doing an SVG report. 1521:Knowledge (XXG) Manual of Style (chemistry) 1470:Knowledge (XXG):Preparing images for upload 1431:Please discuss the issue on this diagram's 1360:Please discuss the issue on this diagram's 1309:to mark wrong or poor chemical structures: 1281:The date is already set to the current date 631:C:\Users\{username}\application data\bkchem 294:methyl groups at the end of a carbon chain. 216:Knowledge (XXG):Molecular structure diagram 1451:Category:Chemical structure quality issues 1030:Upload the resulting PDF to the Texterity 1021:Draw the structure in ChemDraw 12 or later 991:Draw the structure in ChemDraw 12 or later 113: 48:Knowledge (XXG):Manual of Style/Chemistry 1257:Paste this text to the summary template: 273:Methyl groups should be denoted with “CH 56:Knowledge (XXG)'s policies or guidelines 1440:Knowledge (XXG) structure drawing guide 1369:Knowledge (XXG) structure drawing guide 1184:Go to File → Export → Save page as SVG. 185: 125: 442:Draw the structure or reaction diagram 411:Draw the structure or reaction diagram 1338:This chemical structure or diagram's 7: 1004:User:Smallman12q/Scripts/Transperify 372:ACS templates are available in most 1380:Category:Disputed chemical diagrams 1164:to archieve EPS to SVG conversion. 1511:Knowledge (XXG) supplemental pages 1199:not to the English Knowledge (XXG) 581:Drawing with WinDrawChem/XDrawChem 368:Suggested molecule editor settings 60:thoroughly vetted by the community 28: 1516:Chemical structure quality issues 1475:User:Benjah-bmm27/MakingMolecules 558:Circled charge labels font: Arial 476:The ACS settings are as follows: 1407: 1331: 1135:Open the saved file in Inkscape. 1037:Alternative free SVG converter: 1027:Choose PDF as the save as format 33: 1254:(you may want to bookmark this) 1128:), or Encapsulated Postscript ( 1116:is preferable for the latter). 1100:This method works only if your 575:View → Stereo → R/S Labels: All 498:Hash spacing: 0.088 cm (2.5 pt) 495:Margin width: 0.056 cm (1.6 pt) 486:Bond length: 0.508 cm (14.4 pt) 18:Knowledge (XXG):Manual of Style 555:Wireframe bond thickness: 0.06 535:Edit → Preferences → Structure 230:Images should be drawn with a 1: 1311: 811:<?xml version="1.0" ?: --> 653:<?xml version="1.0" ?: --> 589:) that appears to work well. 492:Line width: 0.021 cm (0.6 pt) 344:Images should be uploaded in 546:Edit → Preferences → Display 1398:{{Low quality chem|reason}} 1393:{{Low quality chem|reason}} 1295:Category:Chemical compounds 1241:Category:Chemical compounds 1236:this pre-filled upload form 1104:is able to export files in 489:Bold width: 0.071 cm (2 pt) 483:Bond spacing: 18% of length 212:chemical structure diagrams 1542: 1490:IUPAC Recommendations 2006 1233:The easiest way is to use 564:Edit → Preferences → Bonds 67: 1447:Template:Low quality chem 1226:- this will add the text 951:ChemDraw / ChemBioDraw 11 552:Double bond spacing: 0.18 540:View → Colors: Monochrome 404:and other image editors. 380:Drawing in ACD/Chemsketch 374:chemical drawing programs 242:chemical drawing programs 1322:{{Disputed chem|reason}} 1317:{{Disputed chem|reason}} 1193:Please upload images to 1080:box and, finally, click 888:</use_real_minus: --> 808: 690:</author_program: --> 650: 504:Atom labels: Arial 10 pt 480:Chain angle: 120 degrees 472:(see below for details). 339:Technical considerations 1189:Uploading and copyright 1170:Encapsulated PostScript 515:Drawing in MarvinSketch 1124:), Enhanced Metafile ( 1053:File → Export to Image 907:</bkchem-prefs: --> 872:</recent-file2: --> 859:</recent-file1: --> 427:program, now owned by 419:Drawing in Biovia Draw 1108:format. For example, 904:</default-dir: --> 814:<bkchem-prefs: --> 521:File → Document Style 501:Captions: Arial 10 pt 99:MOS:Structure drawing 1340:factual accuracy is 1246:Alternative method: 1143:commons:librsvg bugs 1039:Online SVG converter 1024:Go to File → Save As 994:Go to File → Save As 971:Generating SVG files 934:Generating PNG files 335:should be followed. 450:Drawing in ChemDraw 58:as it has not been 1046:Using MarvinSketch 875:<use_real_minus 846:</geometry: --> 798:</standard: --> 741:paper_orientation= 729:paper_crop_margin= 677:<author_program 302:Information about 92:WP:Chem/Structures 85:MOS:CHEM/Structure 1461: 1460: 1457: 1456: 1391:Knowledge (XXG): 1386: 1385: 1315:Knowledge (XXG): 1203:single user login 1195:Wikimedia Commons 1078:Use Alpha Channel 1008: 605:Drawing in BKChem 429:Dassault Systèmes 395:, eMolecules and 248:fonts like Arial. 208: 207: 166:Structure drawing 109: 108: 44:explanatory essay 1533: 1419:Page last edited 1411: 1410: 1404: 1348:Page last edited 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1207:check here 1076:Check the 1016:12 for Mac 744:"portrait" 711:font_size= 397:Chemspider 246:sans-serif 186:Categories 1445:Usage: {{ 1433:talk page 1396:Commons: 1374:Usage: {{ 1362:talk page 1320:Commons: 1301:Templates 913:3D Models 881:"IntType" 786:<arrow 639:Windows 7 619:~/.bkchem 595:Unix-like 587:XDrawChem 470:IrfanView 425:ISIS/Draw 255:-R (not R 194:Templates 146:Chemicals 141:Chemboxes 127:Chemistry 70:Shortcuts 22:Chemistry 1464:See also 1342:disputed 1110:ChemDraw 1095:Inkscape 1069:Set the 1014:ChemDraw 984:ChemDraw 817:<lang 780:"0.21cm" 774:"0.18cm" 756:<bond 726:"0.06cm" 683:"0.12.2" 680:version= 659:version= 656:<cdml 643:Python 2 402:Inkscape 333:WP:color 199:citation 78:MOS:CSDG 20:‎ | 1307:Commons 1221:PD-chem 1155:Scribus 1032:FreeSVG 792:"1.6cm" 789:length= 768:"1.4cm" 765:length= 750:"Legal" 708:"Arial" 393:PubChem 389:ACDlabs 354:Chembox 222:General 1427:reason 1356:reason 1153:Using 1093:Using 1051:Click 1012:Using 1007:again. 982:Using 928:SMILES 795:/: 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Index

Knowledge (XXG):Manual of Style
Chemistry
explanatory essay
Knowledge (XXG):Manual of Style/Chemistry
Knowledge (XXG)'s policies or guidelines
thoroughly vetted by the community
Shortcuts
MOS:CSDG
MOS:CHEM/Structure
WP:Chem/Structures
MOS:Structure drawing
Manual of Style
Chemistry
Article titles
Chemboxes
Chemicals
Compound classes
InChI
Nomenclature
Structure drawing
Safety
References and
external links

Templates
citation
chemical structure diagrams
Knowledge (XXG):Molecular structure diagram
molecule editor
ACS
chemical drawing programs
stereocenters

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