371. Phthalocyanines and related compounds. Part XV. Tetrabenztriazaporphin : its preparation from phthalonitrile and a proof of its structure. With a note on a preliminary X-ray investigation
- 1 January 1939
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society
- p. 1809-1820
- https://doi.org/10.1039/jr9390001809