Structure
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Highlighting Valence Errors, when checked, highlights atoms having wrong valences with red underline. This option can be set separately for MarvinSketch and MarvinView.
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Automatic Lone Pair Calculation calculates lone pairs automatically. Make sure View > Misc > Lone Pairs is checked to see the result.
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Validate S-groups At Creation disables the S-group types in the drop-down list which would not yield a chemically correct structure. For more information on S-groups click here.
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Carbon Labels options determine the condition of displaying C labels on carbon atoms.
Always
Never
At straight angles
and implicit H atoms -
Ligand Orders options determine in which cases to display the ligand order information for an R-group.
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Always;
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Never;
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On R-groups with definitions
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