MoleculeSketch is a simple and easy to use drawing App for chemical formulas and reactions. It has following features: + add atoms and bonds nicely by position locking (can be disabled) + choose different double bond styles + add stereo bonds + add bonds with higher hapticity + show missing hydrogen atoms depending on free valences + "grow" and remove hydrogen atoms + show non bonding electron pairs on heteroatoms + change background color of drawing area and add a grid + copy/paste/cut molecules and drawings + paste drawings into other applications as pdf drawing + use trackpad gestures for zooming and rotation + access drawing attributes from popover s + add reaction arrows and text fields + calculate average mass and formula of molecules + group and arrange objects 1e5440
Finally a new version with a lot of new tools and possibilities:
+ you can group objects
+ you can arrange objects
+ more ring templates
+ draw bonds with higher hapticity
+ choose if bond is counting for free valence calculation
+ draw dative (coordinative) bonds
+ more brackets
+ arrow for retro synthesis
+ "grow" and remove hydrogen atoms
+ add a grid to the background
several bug fixes
Please let me know if you still encounter some bugs or difficulties while working with MoleculeSketch.