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*   Using Toolbar Functions
You can manipulate a structure using several buttons in the Structure Editor toolbar.
v
To resize a structure
1.
2.
Click the Resize button, .
3.
Dragging one of the diagonal rectangles keeps the aspect ratio constant during structure resizing.
v
To copy a structure or part of a structure to the Clipboard
1.
2.
Click the Copy button, , or choose Edit > Copy from the Mass Frontier main menu.
The Mass Frontier application supports use of the Windows Clipboard for the exchange of structural information between modules. In addition, you can use copy-and-paste functions inside the Structure Editor. To efficiently draw larger structures, use the copy-and-paste functions.
In addition to structure exchange between modules, you can use the Mass Frontier application for structure export to other applications that deal with structural information. When you copy a structure, the application automatically copies two different formats to the Clipboard: structural information in .mol format and graphics in Windows Metafile Format (.wmf). When you paste a structure into the structure editing software, the application automatically uses the .mol format. When you paste the structure into a text editor, spreadsheet, or other application that works with graphics, the application automatically uses the graphical information.
Structure Exchange using copy-and-paste commands
v
To paste a structure to the Structure Editor
Click the Paste button, , or choose Edit > Paste from the Mass Frontier main menu.
When you copy a structure or fragment anywhere in the application or in a third-party structure drawing tool, you can paste it to the Structure Editor. If necessary, you can change or correct the structure, and then return it to its original location. This is especially useful for structural elucidation. For example, you can copy a structure from the Database Manager window, paste it to the Structure Editor, make appropriate changes, and then move it back to the Database Manager. If the spectrum and the structural proposal are not consistent, you can repeat the process.
When you copy a structure or fragment in a program other than the Mass Frontier application, you can paste this structure as long as the external structure drawing software supports .mol format and this format is activated. The majority of drawing tools for structures support .mol format with this format set as the default. If you paste a structure from an external source, it might appear larger in the Mass Frontier application than in the original software. If this occurs, make the structure smaller using the Resize tool.
v
To rotate a structure in the Structure Editor
1.
2.
Click the Rotate button, .
The center of rotation is indicated by a small circle with a cross in the middle, .
3.
4.
v
To mirror a structure
1.
2.
Click the Mirror button, .
3.
v
To clean a structure
1.
Select an entire structure.
–or–
Select only the atoms you want to clean.
The selected atoms must be connected.
2.
Click the Clean button, .
The Clean function helps you create a professional look for your structures.
Note  In some complicated cases, the Clean function can lead to structures that you might not find satisfactory. If this occurs, choose Edit > Undo from the Mass Frontier main menu.
After finishing a structure drawing, always check for errors before proceeding with any other procedure. When you generate the fragments and mechanisms, the application automatically checks the structure for errors and, if any error is discovered, the generation automatically discontinues. Before you run Fragments and Mechanisms, the Fragmentation Library window automatically performs a structure check.
v
To check a structure
1.
Click the Check Structure button, .
The Structure check tool searches for formal errors and unusual structural features. If a structure is formally incorrect or if the Structure check tool finds its validity questionable, the Structure Check Results message box lists the errors and warnings.
2.
Click OK to close this dialog box.
The Mass Frontier application automatically selects the atoms and bonds that are considered incorrect. The system considers structures that are not connected as mixtures and reports them as errors, but it does not select the mixtures.
Note  This option does not perform quantum mechanical or thermodynamical calculations that address possible structural stability.


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Related Topics:
  Working with the Structure Editor
  Customizing the Structure Layout
  Using Templates
  Modifying Atoms and Bonds
  Displaying the Monoisotopic Molecular Mass
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