Stereochemistry of complex inorganic compounds. XXXV. Complex containing a ligand that spans trans positions
β Scribed by Mochida, Isao; Mattern, J. Arthur; Bailar, John C.
- Book ID
- 111965760
- Publisher
- American Chemical Society
- Year
- 1975
- Tongue
- English
- Weight
- 773 KB
- Volume
- 97
- Category
- Article
- ISSN
- 0002-7863
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## Abstract The bidentate ligand 2,11βbis(diphenylphosphinomethyl)benzo[__c__]phenanthrene (**1**) was synthesized from 2,11βdimethylβbenzo[__c__]phenanthrene (**3**) __via__ the corresponding bromomethyl derivative **9. 3** was obtained from the cyclization with boron trifluoride etherate of 1,1βd
The X-ray crystal structures of 2,1l-bis(di-R-phosphinomethyl)benzo[c]phenanthrenes (R = Ph, t -Bu) are reported. Both ligands have the same conformation and the substitution of a Ph by a t -Bu group does not cause significant changes in the tetracyclic aromatic unit which shows the same distortions