179938-02-4Relevant articles and documents
Reactions of the polyhydride complex ReH7(dppe) (dppe = Ph2PCH2CH2PPh2) with pyridine-2-carboxylic acid, 1-isoquinolinecarboxylic acid, 2-hydroxy-6-methylpyridine and 2-mercaptoquinoline. Synthesis and structural characterization of seven-coordinate monohydrido complexes of rhenium(III)
Harris, Terri A.,McKinney, Talia M.,Wu, Wengan,Fanwick, Phillip E.,Walton, Richard A.
, p. 3289 - 3298 (1996)
The thermal reactions of ReH7(dppe) (dppe = Ph2PCH2CH2PPh2) with pyridine-2-carboxylic acid (Hpic), 1-isoquinolinecarboxylic acid (Hisoquin), 2-hydroxy-6-methylpyridine (Hmhp) and 2-mercaptoquinoline (Hmq) in refluxing benzene afforded the monohydridorhenium(III) species ReH(L)2(dppe) [L = pic (1a), isoquin (1b), mhp (1c), mq (1d)]. While analogous complexes have been prepared previously from ReH7(PPh3)2 in the case of L = pic, isoquin and mhp, the reactions between ReH7(PPh3)2 and the ligands 2-hydroxyquinoline and 2-mercaptoquinoline are dependent on the choice of reaction solvent; the rhenium hydride complexes ReH4(L)(PPh3)2 (L = hq or mq) and ReH(hq)2 (PPh3)2 have been isolated in a pure state. 1H and 31P NMR spectral measurements on the seven-coordinate species 1a - d show that these compounds are stereochemically rigid at room temperature. The solution structures are in accord with the solid state structures of 1c and 1d, as determined by X-ray crystallography. Copyright
