https://doi.org/10.1351/goldbook.09584
Projection formula for macromolecules in which horizontal lines denote polymer backbone bonds. At each individual backbone carbon atom, horizontal lines represent bonds directed below the projection plane and vertical lines represent bonds directed above that plane.
Source:
PAC, 2020, 92, 1769. 'Definitions and notations relating to tactic polymers (IUPAC Recommendations 2020)' on page 1772 (https://doi.org/10.1515/pac-2019-0409)
PAC, 2020, 92, 1769. 'Definitions and notations relating to tactic polymers (IUPAC Recommendations 2020)' on page 1772 (https://doi.org/10.1515/pac-2019-0409)