Chemdraw help with tips
- 2. "الرحمي الرمحن هللا سمب" تعنيسن به و...... تولكن يهعل و..
- 3. Very important …….. These are just tips and tricks for the exam ( as a revision ) …… You should study all what your teaching assistant demonstrated in your section…. I hope it helps ......Menna abdelshaheed
- 4. Before starting Must check on View > show …. • General toolbar • Main toolbar • Style toolbar • Chemical warnings
- 5. File , save as Get your different documents from window in General toolbar Save each step you do !
- 6. Select !!! And select which ? Before doing any function you should first select the structure , or atom , or bond or Whatever …. How would the software knows which of them to work on ??!
- 7. To add an atom or bond , you must see the blue circle otherwise the added may be drawn separate from structure …..! To add a ring , if both rings share a bond Very important !!!
- 8. Or to add a bond
- 9. TO ADD TEXT, JUST GO WITH MOUTH TO THE ATOM, CLICK ENTER THE TEXT BOX APPEARS IMMEDIATELY
- 10. X Fatal mistake !!!! NH2 is actually separated from the structure
- 11. CL , wrong , This is not chlorine Cl , right …….Common mistake !
- 12. Clean up structure , to modify appearance of structure Select structure , go to structure in toolbar , clean up structure After clean up After clean upRings are of different size ! Clean them up simply ….
- 13. Select structure ( blue box ), right click , add frame, as simple as that Choose the same type of frame in paper !!
- 14. When selected , color it immediately if needed
- 15. Copy structure and paste it By continuous pressing of key ( CONTROL ) with continuous pressing on left click ( mouse ), move it until new structure goes to the right place
- 16. Draw equation : Draw structures and arrow Then align them immediately by selecting all of them , right click , Align , T/B centers and after alignment !!! ( why after ? To avoid overlap ) you can now number structures , put each number in brackets if needed and you can write gases , enzymes , whatever , on the arrow if present you can highlight certain functional groups ….etc.,.
- 17. Before alignment !! Messy !!
- 18. Selected altogether by marquee
- 19. When selected , now right click on any structure , Align , T/B centers
- 20. Now , it looks great after alignment
- 21. Number the structures and add any required features
- 22. If he asked to highlight a hydrophilic functional group, now you can do it
- 23. Structure • Convert structure to name Convert name to structure …… Take care : • There are No spaces • Exactly the same as written in paper • Paste name below structure • Right click on name , auto update
- 24. Align equation Draw equation > select all > right click > align > T/B centers Then write names Select all > right click > add frame > choose the type
- 25. Rotate structure Select structure , right click , rotate , 2 things to choose : • Angle • Clockwise (CW) or Counterclockwise (CCW)
- 26. Must activate A first to add symbol , view , show character map
- 27. Formula (written as CH2) from style toolbar X
- 28. Select structure , view , show chemical Properties , select only needed , paste
- 29. Shapes !!! Scale and adjust , send to back (when alone ) before going to the functional group to avoid conflict when selecting it then move it there , you will find it back to functional group
- 30. Size / scale
- 31. Highlight hydrophilic groups X Why highlighting a bond and part of benzene !!!? This is wrong
- 32. Green ,, round ,, rectangle ,, shaded around the hydrophilic functional group
- 33. Move the arrow on them to know name of each type Charges , lone pair , H dot , radical , etc…
- 34. Object , show stereochemistry ( assign stereochemistry ), Find e.g. (R) or (S) for example appears on structure
- 35. after stereochemistry , you may need to clean up the structure until no red warnings ! …
- 36. ENTER, TO ADD TEXT , E.G. ENTER, THEN TYPE NH2 ADJUST BONDS BY GOING TO SELECT ( MARQUEE ) THEN DESELECT THEN GO TO BOND OR ATOM AND ADJUST
- 37. Ascending order when they are arranged from the smallest to the largest number Descending ??
- 38. Atom number Select structure , right click , atom , show atom number
- 39. Mass percent = Elemental analysis View , analysis window each atom is followed by its percentage in compound e.g.
- 40. Magnify , General toolbar
- 41. 1H-NMR , 13C-NMR Select structure , from structure , Predict H-NMR Predict C-NMR Will appear in a new window, save it
- 42. logP , Partition Coefficient As LogP value increases, lipophilicity increases , hydrophilicity decreases N.B. lipophilicity = hydrophobicity ( passes membranes easily, e.g. May pass BBB ( blood brain barrier ) Hydrophilicity = lipophobicity ( water soluble )
- 43. Hydrophilic and hydrophobic groups Reference : Prof.Dr. Mohamed Abdelghafar Chemical basis
- 44. Exact mass , from view , analysis window Molecular weight , from view , analysis window
- 45. To compare between structures according to logP , Pka , boiling point , elemental analysis ( mass percent ) ,….etc. You can get the window from view ( show chemical properties, analysis ,etc……. ) Then just select each structure, you will notice that values change for each structure , paste the needed value for each one
- 46. Importance of chemical warnings Totally wrong structure , atoms are not in right place Separate from structure The right structure
- 47. File, Page setup, size of page , e.g. A3
- 48. CONTROL , MOUSE (LEFT) DRAG AND CLICK TO COPY PASTE CONNECT FROM OUTSIDE TO INSIDE ATTACHMENT POINT MUST BE FROM AN ATOM ALREADY MAKE WAVY THEN ATTACH IT TO A BOND THEN TYPE SELECT ALL AND MOVE OR DECREASE SCALE , DON’T HAVE TO MAKE GROUP AT ALL !
- 49. Thank you