Crystal Structure Exploration€¦ · Crystal Structure Exploration I didn’t know Mercury could...
Transcript of Crystal Structure Exploration€¦ · Crystal Structure Exploration I didn’t know Mercury could...
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Crystal Structure ExplorationI didn’t know Mercury could do that!
Andy MaloneyResearch ScientistWednesday 21st August 2019
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Thanks a million
• Joanna Stevens and Elna Pidcock
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• First released September 2001
• Visualisation, particularly of organic crystal structures. Replacement for Pluto…
Mercury
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Mercury
• First released September 2001
• Visualisation, particularly of organic crystal structures. Replacement for Pluto…
• Grown significantly during that time: • A hub for components of the CSD System
• Can search the CSD in a number of ways within Mercury
• from visualisation to interrogation and exploration…
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Mercury 1.0, 2001
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Mercury 4.0, 2019
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7Some overlooked features? Some favourites…
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It’s the simple things
• Do you load .cif files into Mercury a lot?
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It’s the simple things
• Do you look at chiral molecules a lot?
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It’s the simple things
• Do you select parts of molecules often (to change display styles for example?)
• Alt-Left Mouse button invokes lasso selection
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It’s the simple things
• Do you look at hydrogen bonds a lot?
• Colour by distance
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It’s the simple things
• Disordered structures?
“Suppression” is our term for disordered atoms
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It’s the simple things
• Select by SMARTS
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It’s the simple things
• Make pictures for publications or slides?
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It’s the simple things
• Make pictures for publications or slides?
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It’s the simple things
• Work with coordination metals?
Recent update!
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And a little more involved
• Molecule Overlay
• 2 molecules in the asymmetric unit and want to compare their conformations?
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Last molecule selectedis the one that moves
Multiple structures dialog allows you to “freeze” and hide the overlaid molecules
And a little more involved
• Overlaying more than 2 structures?
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And a little more involved
• Want to overlay molecules from different structures? (and you don’t want to use structure overlay)
Select substructure
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And a little more involved
• Do you want to find all crystal structures containing a particular molecule?• Solid form landscape of paracetamol, ethanol solvates, anything with a
common substructure, not just packing features…
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Property in this column is the number of aromatic
rings in molecule. Chosen structures with 6 aromatic
rings.
And a little more involved
• Do you build subsets of structures based on a particular property?
• Cut and paste from Excel….
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• Do you build subsets of structures based on a particular property?
• Cut and paste from Excel…into Mercury
And a little more involved
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And a little more involved
• Editing a structure• Invert a structure/ Invert a molecule
• Removing symmetry by choosing a subgroup
• Changing the space group setting: P21/n to P21/c
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And a little more involved
• Do you explore structural changes due to phase transitions?
• FIZPEL/ FIZPEL01
P-1Low temp
Mirror symmetry relationship formalised in P21/c
P21/cRoom Temp
Transformed to subgroup P-1
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And a little more involved
• Sketch a molecule and generate a conformation
Sketcher Mercury
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And a little more involved
• Sketch a molecule and generate a conformation….
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Too many to mention:
• Custom view
• Powder pattern simulation
• Links to Isostar, GOLD, Mogul etc
• Motif searching and hydrogen bond propensity calculations
• More info dialog• Nearest Miller Plane
• Selecting atoms from Atoms list
• MOPAC – point group symmetry
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Acknowledgements – too many to mention
• Many thanks to all the developers, testers and documentation-writers at CCDC
• Many thanks to you for suggesting enhancements and new features …….and reporting bugs
Thank you!