New 11-(3-indoly)benzo(b)carbazoles (9) has been synthesised in good yield from the reation of indole and o-phthaldialdehid in dry chloroform catalysed by phosphoryl chloride. An X-ray crystal structure determination has been carried to estabilish the structure of benzocarbazole (9). keywords: indole, o-phthaldialdehid, new benzo(b)carbazole. Mardi Santoso
