Groups-Repetition units

How to create a Repetition unit or an SRU polymer

with the Repeating Group tool

images/download/attachments/41125808/Repeating_1.png

After the dialog closes, the repetition unit is established.


with Selection

images/download/attachments/41125808/Repeating_2.png

After the dialog closes, the repetition unit is established.

Please, remember:

when

  • one atom has been selected and

  • the repetition pattern is the default value (ht) and

  • the repetition count is a range starting with 1-...

the structure will be exported as a Link node.

How to modify a Repeating Unit

You can change the range and the pattern of the repetition by opening the Repeating group dialog.

images/download/attachments/41125808/image2015-4-3_11_39_52.png

With the active Repeating group tool hover over the group on the canvas with the mouse cursor. When the elements of the group are highlighted in grey, left-click within the brackets.
In the opening Repeating group dialog you can change the current values.

Delete a Repeating Unit

Right-click on the structure within the brackets, then select Ungroup from the menu.

When you modify the atoms or bonds in the group, it will automatically ungroup.