Irina Oshchepkova
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Articles
Recent activity by Irina Oshchepkova-
ChemSketch: How to draw structures in ChemSketch in a notation style, like NH2CH2CH2CH2OH (Condensed Formula)
DescriptionSome users prefer or require condensed formulas (e.g., NH₂CH₂CH₂CH₂OH) for teaching or documentation, instead of fully expanded skeletal or structural formulas. While ChemSketch is a str...
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ChemSketch: How to insert Greek letters and symbols into ChemSketch
DescriptionGreek letters and special symbols are often required for labels, names, and annotations (e.g., α, β, σ). ChemSketch supports these through dedicated fonts in both Structure and Draw mode...
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ChemSketch: How to convert a chemical structure between 2D and 3D formats.
DescriptionThis article covers the process of generating a 3D model from an existing 2D drawing, optimizing the structure to obtain accurate 3D geometry, and switching between 2D and 3D views durin...
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ChemSketch: What temperature is used for density prediction?
DescriptionChemSketch predicts density using an internal model that assumes a standard temperature. Understanding this assumption is important when comparing predicted densities with experimental d...
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ChemSketch: How to view the chair or boat conformations in 3D
DescriptionCyclohexane and related ring systems can adopt various conformations such as chair and boat. ChemSketch together with 3D Viewer can generate these 3D conformers starting from a SMILES st...
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ChemSketch: How to change the alignment/justification for a group of atoms or double bond
DescriptionChemSketch lets you adjust how atom groups (e.g., CH₃, NH₂) and double bonds are positioned relative to the main skeleton. This is useful to improve readability, avoid overlaps, or meet ...
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ChemSketch: How to change which atom is attached to a bond
DescriptionWhen you create custom atom labels using Edit Atom Label (for example complex groups or multi-atom fragments), ChemSketch allows you to choose which atom in that label is considered bond...
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ChemSketch: How to show Newman projections
DescriptionNewman projections are a way of visualizing the conformation of a molecule by looking straight down a specific bond. ChemSketch supports Newman projections both via dedicated templates a...
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ChemSketch: How to show all the explicit carbons in the structure
DescriptionBy default, ChemSketch hides many carbon atom labels (especially in standard organic line structures) to keep drawings clean and uncluttered. In some cases—such as teaching, preparing pu...
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ChemSketch: Access to Name Freeware vs. full commercial Name version via the same button
Description: I’m getting this message and can’t name the structure, although I do have a commercial ChemSketch license. SolutionYour current license includes only ChemSketch (commercial version) a...