Using the program Bondit Bondit is a program designed to provide practice for students taking introductory high school, Advanced Placement, or college level general chemistry. Organic compounds can also be done including some ring compounds. The intent is to provide the student with practice in drawing Lewis dot formulas that follow the octet rule. A 3-dimensional representation can also be seen after the structural formula has been completed. Molecules and structures can be created, saved to the clipboard, and then copied into any other Windows application. Two predesigned sets of compounds are included with the registered copy which can be used as classroom exercises. A text file is included with the registered version called ORGANIC.LAB which will provide the student with a number of organic compounds. Compounds up to 26 atoms in size can be created with the program. The unregistered version of the program can only do compounds containing H, S, O, and benzene. The registered copy can do compounds containing any combination of the atoms listed on the left of the screen when the program is running. To obtain a registered copy of bondit see the file register.txt. Bondit 2.65 is designed for Windows 95 and Windows NT. Installing bondit on you hard drive. Start windows and place the disk with the bondit files in your disk drive. Click on File|Run in the upper left hand corner of program manager. The name of the program to be run is A:install. If the files are on directory C:\temp then enter c:\temp\install. The files will be installed onto your hard drive and a program group created for bondit including icons for some of the bondit files. Using bondit The goal of bondit is to draw an electron dot representation (Lewis formula) of molecules which follow the octet rule. To choose an atom click the appropriate symbol on the left of the screen. The atom chosen will appear on the right. The atom may be moved by placing the mouse cursor over it, clicking the left mouse button, and dragging the atom to the area desired. To bond one atom to another select a single atom by using the mouse and move it so that it is placed above the atom with which you wish to bond. Releasing the mouse button will bond the two atoms together if possible. An atom cannot exceed 8 electrons (a single bond counts as 2) except hydrogen which cannot exceed 2 electrons. Multiple bonds may be made by clicking the right mouse button over the existing bond you want to make a multiple bond. If there are too many or not enough electrons for bonding a multiple bond will not form. Cations and anions can be made by choosing the Edit|Add Electron or Edit|Subtract Electron option. Click on 3-D model to see a three-dimensional representation of a completed molecule. Pressing the "End" key will accomplish the same thing. The molecule may be rotated using the arrow keys or moved using the shift and arrow keys. Press "Home" to return. Molecule Menu Items: New This menu item will start a new molecule. You will be asked if you want to save the molecule you were working on previously. Open This menu item will open a previously saved molecule. Use the mouse or keyboard to select the file of interest. Files can also be deleted by choosing delete after selecting the desired file. Save To save a molecule choose this option. If the molecule already has a name the new state of the molecule will replace the former state. If the molecule does not have a name you will be asked for one. Use a single word with no spaces of 8 letters or less. SaveAs To save a molecule under a different name while retaining the molecule with the former name use this option. You will be asked for a filename. Use a single word with no spaces of 8 letters or less. Exit This command will terminate the program. Edit Menu Undo Choose this menu item to return to the state of the molecule before your previous procedure. Add Electron To add an electron to an atom choose this menu item and then click the right mouse button on the atom which is to gain the electron. Subtract Electron To subtract an electron from an atom choose this menu item and then click the right mouse button on the atom which is to lose the electron. Abbreviate H's Occasionally you may wish to abbreviate a molecule so that you may bond other atoms. To do so click on this menu item. All H atoms will be abbreviated. Copy to Clipboard To copy a molecule or structure to the clipboard choose Edit|Copy to Clipboard when viewing the molecule or Copy to Clipboard if viewing the structure. The molecule or structure will be copied to the clipboard. To transfer the molecule or structure to another application start the application and choose Edit|Paste. The molecule or structure will be copied to your application and you can change it as you would any object added. Practice Menu Click on Start Lab or Organic Chemistry to do a series of preloaded molecules. A new menu bar will appear. To start the same molecule again choose the Repeat menu item. To go on to the next molecule click on the Next menu item. A completed molecule may be seen in three-dimensions by clicking on View|3-D model. You may Quit at any time by choosing Practice|Quit (returns to the regular program) or by choosing Molecules|Exit (terminates the program). The Organic item will not function in the unregistered version. DISCLAIMER ---------- THE BONDIT STRUCTURAL PROGRAM IS SOLD "AS IS" AND WITHOUT WARRANTIES AS TO PERFORMANCE OR ANY OTHER WARRANTIES WHETHER EXPRESSED OR IMPLIED. BECAUSE OF THE VARIOUS HARDWARE AND SOFTWARE ENVIRONMENTS INTO WHICH THIS PROGRAM MAY BE PUT, NO WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE IS OFFERED. IN NO EVENT SHALL THE AUTHOR OF THIS SOFTWARE BE LIABLE FOR INDIRECT, SPECIAL, OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF THE THIS PROGRAM. IN NO EVENT SHALL THE AUTHORS' LIABILITY FOR ANY DAMAGES EVER EXCEED THE PRICE PAID FOR THE LICENSE TO USE THE SOFTWARE, REGARDLESS OF THE FORM OF CLAIM. THE PERSON USING THE SOFTWARE BEARS ALL RISKS AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE. THIS AGREEMENT SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH THE LAWS OF THE STATE OF FLORIDA.