If you have already used the previous Match! version 1, you should read this page, in order to get a quick overview what has changed. However, this page is also recommended for new users, because it contains an overview over the most advanced and important features of the software on top of its basic functionality.
In addition to the features mentioned below, a variety of improved functionality has been implemented in Match! version 3. Please click here to get an overview over the version 3 improvements.
The following features had been added in the previous Match! version 2:
With the new version, any of these tasks can be accomplished very quickly:
Simply press <Ctrl+F> (or click into the corresponding
new field "Find phases/entries" to the right of the toolbar), then type the name, the formula sum and/or the entry number of one or more compounds, and finally press <Return>.
Match! will make sure that the corresponding entries are displayed in the candidate list at the bottom of the screen, and then automatically highlight the best entry for each criterion (e.g. name or formula sum). As a result, the corresponding diffraction patterns will be displayed in the pattern graphics above.
At this point, you are now ready to e.g.
For example, suppose that you know that the element oxygen (O) must be present in all matching phases. In order to use this information, simply click on the corresponding button in the periodic table on the upper right-hand side; Match! will instantly apply this additional information to the current answer set (table candidate list at the bottom).
As you see, the new version of Match! now uses the same perpetual restrainting mechanism that you may already know from Pearson's Crystal Data: While entering your selection criteria, any modification will instantly be reflected e.g. in the table of resulting entries and the entry count.
In a similar manner, it is also possible to add specific entries to the table of candidate entries (candidate list): Simply click on the tab "Additional entries"; this will bring up a totally equivalent set of tabsheets like the "Restraints" set. You can now define precisely which entries you would like to add to the candidate list even though they do not match the "Restraints" criteria.
You will find the corresponding control elements at the bottom of the "Restraints" (and also "Additional entries") tab to the right of Preset:
In order to save the current selection criteria (either for restraints
or additional entries), simply press the Save button. Afterwards,
you have to enter a name using which you can easily identify this
set of selection criteria later on.
Your selection criteria will then be stored in your personal settings. If another person is using the same computer, he can store his own selection criteria independent from your's (of course assuming that he is using his own account on this machine...).
If you would like to recall a certain set of selection criteria, simply
press the "arrow down" button of the combo box to the left of the "Save"
button, and select the name of the desired selection criteria from the
list which opens.
That's it! The selection criteria which have been loaded will instantly be applied to the table of candidate entries (candidate list), and of course also to the entries that are investigated during the search-match calculation.
The new version 2 is much more flexible regarding this issue: Like in version 1, the background is first determined automatically during the import of the diffraction data. However, it is then possible to modify the shape of the background curve, simply by dragging around control points of the background curve using the mouse. It is also easily possible to add more control points or delete existing ones just by clicking the right or left mouse button if the mouse cursor is at the corresponding position:
In order to be able to modify the background, you first need to make sure that the background curve is currently displayed. You can do so either from the diffraction pattern's context menu (which can be opened by clicking the right mouse button), or on the "Graphics" page of the "Options" dialog (which can e.g. directly be opened by pressing the corresponding button in the toolbar). Once the background curve is displayed, you can simply insert, shift or delete control points using the mouse, in order to precisely define the background with regard to the raw data. Please take a look at the table of mouse operations and keyboard shortcuts in order to learn more about the detailed operations.
With the new version 2, things have improved a lot: Like in the previous version, you can simply select a certain area in the diffraction pattern graphics using the mouse, and Match! will adapt the graphics accordingly. However, the first big difference is that now not only the 2theta range but also the range on the intensity axis can be selected. In other words, you can draw a rectangle inside your diffraction pattern using the mouse, and Match! will focus on this area.
Another option that is now available is to use the mouse wheel for zooming: Move the mouse cursor to the region in the diffraction pattern you would like to focus on, and turn the mouse wheel to focus right into this area (or out again, if you turn the mouse wheel into the opposite direction).
You can also simply double-click the left mouse button at a certain position you are interested in, in order to zoom into the corresponding area. Double-click again, and the display will return to the full pattern view.
Once you have zoomed into the diffraction pattern, you can shift the pattern ("tracking") by keeping the 'Shift' button pressed on your keyboard while moving the mouse around. As an alternative, you can also keep the center mouse button (or mouse wheel) pressed while moving the mouse.
Finally, it is now also possible to exactly define the area (intensity and 2theta) you would like to display. A corresponding dialog for this purpose can now be opened by selecting the "Define zoom area..." command from the "View" menu.
Again, we strongly recommend to take a closer look at the table of mouse operations and keyboard shortcuts in order to learn more about the detailed operations.
With the new version, these options have been extended; please take a look at the corresponding "Batch" page of the "Options" dialog.
Match! is now also capable of automatically selecting multiple matching phases (and not just a single one as in version 1), so the program is now (in principle) able to automatically determine the components of a mixture of crystalline phases completely on its own. Well, from practice you will know that there may be cases in which minority phases are not identified with this approach, or that there may be other issues not recognized by the software, of course...
In addition to the option to set the automatic options for each individual step, you can now also select among several so-called "user levels" at the top of the 'Batch' options page. The user levels define certain sets of automatic options that have shown to be reasonable. For example, the "Automatic" level lets Match! perform the complete phase identification procedure automatically, while on the "Expert" level you have to run every single step on your own. Of course, you can also save your own batch options settings as new 'user levels'.
When you run Match! for the very first time, you will be asked which default user level ("Beginner" or "Expert") you prefer:
In the "Beginner" mode Match! performs a nearly complete automatic processing of the initial steps: All you have to do is to select the diffraction data file you would like to analyze (you will be prompted automatically for it once the software has been started). Afterwards, Match! will automatically process the raw data, determine the peaks, and run the search-match calculation. All that remains to do is to select the "matching" phases (e.g. by double-clicking or dragging the corresponding entries from the candidate list on the left-hand side to the Match list to the right), and finally display the report containing e.g. the list of matching phases as well as their arbitrary amounts (e.g. by selecting "View/Report").
In the "Expert" mode you have to perform nearly all actions manually. This mode is especially recommended for experienced users who would like to analyze more complicated samples.
You can customize the user level ("batch" behaviour) on the "Batch" tab of the "Tools/Options" dialog also later on. In addition to selecting user levels like "Beginner" or "Expert" you can also select individual batch steps according to your requirements.
Finally, it should also be noted that the new Match! version can be controlled from external programs using a batch script that Match! will follow. The file name of this batch script can be given as a "command line parameter" when the Match! program executable is invoked, or by using the "Run batch script..." command from the "File menu.