GOLD(I) AND GOLD(III) ortho-NITROPHENYL COMPLEXES. CRYSTAL AND MOLECULAR STRUCTURE OF ortho-NITROPHENYLTRIPHENYLARSINEGOLD(I)

Article abstract of DOI:10.1016/S0022-328X(00)99639-6

The reaction between ^- and tetrahydrothiophene (tht) in the presence of NaClO4 gives a solution (probably containing ) that can be used to prepare neutral n> (L = AsPh3, n = 1; L = SbPh3, n = 2; L = 1,10-phenanthroline, n = 1) or anionic ^- complexes.Treatment of with chlorine or PhICl2 gives trans- or cis-.Isomerizations occur when the cis-isomer is treated with concentrated solutions of chlorine or when the trans-isomer is heated.An X-ray diffraction study of has revealed an almost linear coordination around the gold atom (As-Au-C mean value 177(2) deg).The Au-O distance is too long (mean value 2.80(3) Angstroem) for intramolecular coordination.