79231-76-8Relevant academic research and scientific papers
VIBRATIONAL, NQR AND THERMOGRAVIMETRIC STUDY OF COMPLEXES BETWEEN TRIPHENYL GROUP VB COMPOUNDS AND MERCURIC HALIDES
Linthoudt, J. P. van,Verdonck, L.,Kelen G. P. van der
, p. 255 - 264 (1981)
The synthesis, identification, vibrational (IR-FIR), NQR and thermal (TGA) study of a series of donor-acceptor complexes (Ph3EVB)n(HgX2)m (EVB=As, Sb, Bi; Ph=phenyl; X=Cl, Br, I; n/m=2/2, 2/1) is reported.Elemental analysis proved that the aimed stoichiometry is only obtained for the (Ph3Sb)n(HgI2)m and (Ph3As)n(HgX2)m complexes, (Ph3As)2(HgI2)2 excepted.In all other cases a much lower Ph3EVB content is found.Assignments for the skeletal vibrational frequencies are based upon a tetrahedral C2V and a bridge-like C2h symmetry for (Ph3EVB)2HgX2 and (Ph3EVB)(HgX2)2 complexes, respectively.Changes in the electron distribution of the Hg-X bond dominate the halogen NQR frequency.TG curves are characterized by a single step mass loss and the absence of any residue suggests volatilization rather than decomposition.
