תנועה חופשית
לפניכם שני מודלים מולקולריים של החומר ברומו כלורו פלואורו מתאן – CHFClBr.
במבט ראשון שני המודלים נראים זהים. נסו לסובב אותם ובדקו אם אכן שני המודלים זהים.
L-CHFBrCl
 Jmol._Canvas2D (Jmol) "jmolApplet277_0"[x] script 1 started loadScript https://stwww1.weizmann.ac.il/chemlife/wp-content/plugins/jsmol2wp/j2s/core/coretext.z.js JSmol exec jmolApplet277_1 start applet null Jmol JavaScript applet jmolApplet277_1__092982241856075__ initializing Jmol getValue debug null Jmol getValue logLevel null Jmol getValue allowjavascript null AppletRegistry.checkIn(jmolApplet277_1__092982241856075__) vwrOptions: { "name":"jmolApplet277_1","applet":true,"documentBase":"https://stwww1.weizmann.ac.il/chemlife/?p=277","platform":"J.awtjs2d.Platform","fullName":"jmolApplet277_1__092982241856075__","codePath":"https://stwww1.weizmann.ac.il/chemlife/wp-content/plugins/jsmol2wp/j2s/","display":"jmolApplet277_1_canvas2d","signedApplet":"true","appletReadyCallback":"Jmol._readyCallback","statusListener":"[J.appletjs.Jmol object]","syncId":"092982241856075","bgcolor":"white" } setting document base to "https://stwww1.weizmann.ac.il/chemlife/?p=277" (C) 2015 Jmol Development Jmol Version: 14.29.4 2018-02-07 23:40 java.vendor: Java2Script (HTML5) java.version: 2018-01-28 23:38:52 (JSmol/j2s) os.name: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com) Access: ALL memory: 0.0/0.0 processors available: 1 useCommandThread: false appletId:jmolApplet277_1 (signed) Jmol getValue emulate null defaults = "Jmol" Jmol getValue boxbgcolor null Jmol getValue bgcolor white backgroundColor = "white" Jmol getValue ANIMFRAMECallback null Jmol getValue APPLETREADYCallback Jmol._readyCallback APPLETREADYCallback = "Jmol._readyCallback" callback set for APPLETREADYCallback Jmol._readyCallback APPLETREADY Jmol getValue ATOMMOVEDCallback null Jmol getValue AUDIOCallback null Jmol getValue CLICKCallback null Jmol getValue DRAGDROPCallback null Jmol getValue ECHOCallback null Jmol getValue ERRORCallback null Jmol getValue EVALCallback null Jmol getValue HOVERCallback null Jmol getValue IMAGECallback null Jmol getValue LOADSTRUCTCallback null Jmol getValue MEASURECallback null Jmol getValue MESSAGECallback null Jmol getValue MINIMIZATIONCallback null Jmol getValue SERVICECallback null Jmol getValue PICKCallback null Jmol getValue RESIZECallback null Jmol getValue SCRIPTCallback null Jmol getValue SYNCCallback null Jmol getValue STRUCTUREMODIFIEDCallback null Jmol getValue doTranslate null language=en_US Jmol getValue popupMenu null Jmol getValue script null Jmol getValue loadInline null Jmol getValue load null Jmol applet jmolApplet277_1__092982241856075__ ready |
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CHFBrCl
Jmol._Canvas2D (Jmol) "jmolApplet277_1"[x] loadScript https://stwww1.weizmann.ac.il/chemlife/wp-content/plugins/jsmol2wp/j2s/core/package.js loadScript https://stwww1.weizmann.ac.il/chemlife/wp-content/plugins/jsmol2wp/j2s/core/corejmol.z.js loadScript https://stwww1.weizmann.ac.il/chemlife/wp-content/plugins/jsmol2wp/j2s/core/corescript.z.js JSmol exec jmolApplet277_0 start applet null Jmol JavaScript applet jmolApplet277_0__092982241856075__ initializing Jmol getValue debug null Jmol getValue logLevel null Jmol getValue allowjavascript null AppletRegistry.checkIn(jmolApplet277_0__092982241856075__) vwrOptions: { "name":"jmolApplet277_0","applet":true,"documentBase":"https://stwww1.weizmann.ac.il/chemlife/?p=277","platform":"J.awtjs2d.Platform","fullName":"jmolApplet277_0__092982241856075__","codePath":"https://stwww1.weizmann.ac.il/chemlife/wp-content/plugins/jsmol2wp/j2s/","display":"jmolApplet277_0_canvas2d","signedApplet":"true","appletReadyCallback":"Jmol._readyCallback","statusListener":"[J.appletjs.Jmol object]","syncId":"092982241856075","bgcolor":"white" } setting document base to "https://stwww1.weizmann.ac.il/chemlife/?p=277" (C) 2015 Jmol Development Jmol Version: 14.29.4 2018-02-07 23:40 java.vendor: Java2Script (HTML5) java.version: 2018-01-28 23:38:52 (JSmol/j2s) os.name: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com) Access: ALL memory: 0.0/0.0 processors available: 1 useCommandThread: false appletId:jmolApplet277_0 (signed) Jmol getValue emulate null defaults = "Jmol" Jmol getValue boxbgcolor null Jmol getValue bgcolor white backgroundColor = "white" Jmol getValue ANIMFRAMECallback null Jmol getValue APPLETREADYCallback Jmol._readyCallback APPLETREADYCallback = "Jmol._readyCallback" callback set for APPLETREADYCallback Jmol._readyCallback APPLETREADY Jmol getValue ATOMMOVEDCallback null Jmol getValue AUDIOCallback null Jmol getValue CLICKCallback null Jmol getValue DRAGDROPCallback null Jmol getValue ECHOCallback null Jmol getValue ERRORCallback null Jmol getValue EVALCallback null Jmol getValue HOVERCallback null Jmol getValue IMAGECallback null Jmol getValue LOADSTRUCTCallback null Jmol getValue MEASURECallback null Jmol getValue MESSAGECallback null Jmol getValue MINIMIZATIONCallback null Jmol getValue SERVICECallback null Jmol getValue PICKCallback null Jmol getValue RESIZECallback null Jmol getValue SCRIPTCallback null Jmol getValue SYNCCallback null Jmol getValue STRUCTUREMODIFIEDCallback null Jmol getValue doTranslate null language=en_US Jmol getValue popupMenu null Jmol getValue script null Jmol getValue loadInline null Jmol getValue load null Jmol applet jmolApplet277_0__092982241856075__ ready script 1 started loading CHFBrCl... loading L-CHFBrCl... en not supported -- using en callback set for language en null language = "en" FileManager.getAtomSetCollectionFromFile(https://stwww1.weizmann.ac.il/chemlife/wp-content/uploads/sites/13/2016/11/CHFBrCl.mol) FileManager opening url https://stwww1.weizmann.ac.il/chemlife/wp-content/uploads/sites/13/2016/11/CHFBrCl.mol The Resolver thinks Mol -ISIS- 02200112283D Time for openFile(https://stwww1.weizmann.ac.il/chemlife/wp-content/uploads/sites/13/2016/11/CHFBrCl.mol): 273 ms reading 5 atoms ModelSet: haveSymmetry:false haveUnitcells:false haveFractionalCoord:false 1 model in this collection. Use getProperty "modelInfo" or getProperty "auxiliaryInfo" to inspect them. Default Van der Waals type for model set to Babel 5 atoms created ModelSet: not autobonding; use forceAutobond=true to force automatic bond creation Time for creating model: 6 ms CHFBrCl Script completed Jmol script terminated en not supported -- using en callback set for language en null language = "en" FileManager.getAtomSetCollectionFromFile(https://stwww1.weizmann.ac.il/chemlife/wp-content/uploads/sites/13/2016/11/L-CHFBrCl.mol) FileManager opening url https://stwww1.weizmann.ac.il/chemlife/wp-content/uploads/sites/13/2016/11/L-CHFBrCl.mol The Resolver thinks Mol -ISIS- 02200112333D Time for openFile(https://stwww1.weizmann.ac.il/chemlife/wp-content/uploads/sites/13/2016/11/L-CHFBrCl.mol): 180 ms reading 5 atoms ModelSet: haveSymmetry:false haveUnitcells:false haveFractionalCoord:false 1 model in this collection. Use getProperty "modelInfo" or getProperty "auxiliaryInfo" to inspect them. Default Van der Waals type for model set to Babel 5 atoms created ModelSet: not autobonding; use forceAutobond=true to force automatic bond creation Time for creating model: 2 ms L-CHFBrCl Script completed Jmol script terminated |
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סבוב
באנימציה הבאה מתחילים ממולקולה CHFClBr ותמונת הראי שלה. באנימציה מסובבים את המולקולה ובודקים אם היא זהה לתמונת הראי שלה.
האם כתוצאה מהסיבוב נוצרת זהות בין המולקולה לתמונת הראי שלה?
שימו לב שבמולקולה השמאלית המימן שעל הפחמן המרכזי פונה קדימה, ואילו במולקולה הימנית המימן שעל הפחמן המרכזי פונה אחורה.
כאשר אין זהות בין מולקולה לתמונת הראי שלה – המולקולה היא כיראלית.
הפחמן שעליו 4 מתמירים שונים נקרא פחמן כיראלי.
