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- Example 1: Make Water Molecule
-
- Key function
- --- -----------------------
- A Enables Atom Selection
- O (cr) selects Oxygen
- H (cr) selects Hydrogen
- H (cr) selects Hydrogen
- (cr) exits Atom Selection
- B Enables Bond Command
- 1 (cr) selects first atom (Oxygen)
- 2 (cr) selects second atom (Hydrogen)
- (cr) no dative bonds
- 1 (cr) selects first bond listed
- (Oxygen and Hydrogen atoms appear on screen)
- (cr) Enables Bond Command
- 1 (cr) selects first atom (Oxygen)
- 3 (cr) selects third atom (Hydrogen)
- (cr) no dative bonds
- 1 (cr) selects first bond listed
- V Chemical is shown in selected view
- down cursor New view selected
- (cr) New view shown
-
- Example: Saving to Disk
-
- F File command
- W Write to Disk command
- H2O (cr) file name
- Water H2O(cr) title
-
- The file saved on disk looks like this (after using the (F)ile/
- (M)inimize command to eliminate unused orbitals):
-
- chemical_name("Water H2O")
- chemical(a(3,"H",o("1s",1,"σ",1)))
- chemical(a(1,"O",o("3p(z)",1,"σ",3)))
- chemical(a(2,"H",o("1s",1,"σ",1)))
- chemical(a(1,"O",o("3p(y)",1,"σ",2)))
- atomlocation(3,l(10001,10000,11456,0.375,0,-1.5692036732,0,1),1)
- atomlocation(2,l(10001,11456,10000,0.375,0,0,1.57,1),1)
- atomlocation(1,l(10000,10000,10000,0.745,0,0,0,6),1)
- commandactive("Files")
- viewshown("Rht")
- grid(0)
- atom_count(4)
-
- Each orbital is represented by a line labeled chemical and contains
- the Selection Number, the Atom Name, the orbital name, the number of
- electrons in this orbital, the bond type(if bonded), and the atom
- number bonded to. Each atom has a line labeled atomlocation giving:
- the X,Y,Z coordinates, the radius, the X,Y,Z rotation angle of the
- Atom, and the color of the atom (last integer is used internally in
- program).
-
-
- Example 2: Benzene C6H6
-
- 1) Clear previous entries with (C)lear
-
- 2) Enter 6 Carbon Atoms using (A)tom
-
- 3) Select the sp2 hybrid for each Carbon Atom using (H)ybrid
-
- 4) Bond Atoms 1 and 2 using (B)ond - select the first bond listed
-
- 5) Use the Up/Down cursor key to set view to TOP
-
- 6) Bond Atoms 2-3, 3-4, 4-5, 5-6 as in step 4
-
- 7) Bond Atoms 6-1 selecting the 2nd bond listed
-
- 8) Make a pi bond between atoms 1-2, 3-4, and 5-6 using (B)ond
-
- 9) Enter 6 Hydrogen Atoms using (A)tom
-
- 10) Bond each hydrogen atom to a carbon atom - select first bond listed
-
- Example 3 [Co(NH3)6]3+ Coordination Compound
-
- 1) Select Co and six N atoms
-
- 2) Select the +3 ionization and d2sp3 Hybridization of Co using
- the Ionize and the Hybrid commands
-
- 3) Select the sp3 Hybriization of N using the Hybrid command
-
- 4) Bond the six d2sp3 orbitals on Co with the six N atoms (sp3
- orbital)
-
- 5) Select 18 hydrogen atoms
-
- 6) bond the hydrogen atoms to the six nitrogen atoms
-