General Options

On the "General" page of the "Options" dialog, some very basic settings can be adjusted:

Automatically check for available updates

Once this option has been activated (which is actually the default state), Match! will automatically check for a more recent version on the Crystal Impact webserver each time it is executed. In order to achieve this, a working connection to the internet is required, of course. If you are not connected to the internet, Match! will ask you to do so before continuing.
You might want to disable this option if you are not permanently connected to the internet. Please note that the box "Save as defaults" in the corner on the lower left-hand side of the dialog must also be checked in order for the change to be effective!

Color differentiation according to FoM

Match! can assign a certain color to the FoM-values of individual entries, as is described in the online help page of the candidate list. If this option is active, the color will be displayed in the background of the "FoM" field to the right of the candidate list. Besides this, the color will be used as the background color of the entry's data sheet.

Use I/Ic=1.0 if no value is given in reference database

For semi-quantitative analysis, the program requires so-called "I/Ic" values (relative intensity ratios compared to corundum) to be present in the reference database for all entries that are selected as "matching". Normally, the semi-quantitative analysis cannot be performed if there is no I/Ic value for one (or more) of these entries.
However, in some cases it may be useful to assume I/Ic-values of 1.0 if no corresponding value is given in the reference database, so that a semi-quantitative analysis is nevertheless possible. Although this assumption leads to errors in the weight-percentage values of the compounds, these errors may be small if the phases for which I/Ic=1.0 is assumed are only present in small amounts.
If this option is active, the amounts of phases for which an I/Ic value of 1.0 has been assumed are marked by "(*)" in the Report.

Display background warning at diffraction data import

When new raw diffraction data are imported, Match! tries to determine the background automatically. Afterwards, the automatically determined background is investigated: If the background curve is significantly larger than the corresponding raw data at more than 5 successive points, a warning message is displayed that the automatically determined background does not seem to be accurate enough. You can toggle the displaying of this warning message using this option.

Automatically save information for restore

If this option is active (which is default), Match! will automatically save the current contents of the Match! document every N minutes, where N can be adjusted using the "Interval (minutes)" slider. The default value of N is 10 (minutes).
If Match! is restarted after it has been accidentally closed, it will automatically restore the previously saved contents.
Please note that the contents of the User database manager is not saved by this option, because it is not included in the Match! document format!

Default selection preset

Once you have created a so-called "selection criteria preset" using the corresponding buttons at the bottom of the "Restraints" or "Additional entries" tabs on the right-hand side of the screen, you can define one of these presets to be active right away when you create a new document/session (or when you run the Match! program). This is e.g. useful if you are normally working on rather similar samples for which the same set of selection criteria should be applied, e.g. certain elements that must or must not be present etc.
Please note that you have to mark the checkbox "Save as defaults" at the bottom to make this setting permanent!

Default wavelength

Here you can define the wavelength that shall be used/set when the program is run or a new document is created.

Diamond program path (Windows version only)

Here you can define the directory in which the Diamond software for crystal and molecular structure visualization is installed. This may be useful if you have not installed Diamond in the default directory and/or Match! has not been able to determine the path to Diamond automatically.

In order to define the path of your Diamond installation, simply press the "Modify..." button and select the corresponding directory. If a valid path to Diamond is available, you can simply display the crystal structure of a marked entry by running the menu command "Entries/View in Diamond", or by pressing the corresponding button in the toolbar.

Endeavour program path (Windows version only)

Here you can define the directory in which the Endeavour software for crystal structure solution from powder diffraction data. This may be useful if you have not installed Endeavour in the default directory and/or Match! has not been able to determine the path to Endeavour automatically.

In order to define the path of your Endeavour installation, simply press the "Modify..." button and select the corresponding directory. If a valid path to Endeavour is available, you can simply run a crystal structure calculation of a marked entry by running the menu command "Tools/Structure solution (Endeavour)", or by pressing the corresponding button in the toolbar.

Default settings

If you enable the checkbox "Save as defaults" in the left bottom corner of the "Options" dialog, the setting of all options will be the same next time you execute Match! or create a new document.