Synthesis and structural characterization of adducts of silver(I) oxyanion salts, AgX (X = ClO4, NO3), with Ph2E(CH2)xEPh2 ('dpex'; E = P, As; x = 1-3) and oligodentate aromatic N-bases derivative of 2,2'-bipyridyl, 'L', AgX:dpex:L (2:1:1) or (1:1:1)

Six new adducts of silver(l) perchlorate and nitrate, AgX, with N,N'(,-N'')-oligodentate ligands L, derivative of 2,2'-bipyridyl, together with Ph2E(CH2)(x)EPh2 ('dpex'), are reported and characterized by spectroscopic and structural studies. Two different stoichiometries were found: AgNO3:dpex:'tpy' (2:1:1), ('tpy'=2,2':6`,2"-terpyridyl; 1: dpex='dppm' (Ph2PCH2PPh2); 2: dpex='dpam' (Ph2AsCH2AsPh2); 3: dpex='dppp' (Ph2P(CH2)(3)PPh2)) and AgClO4:dpex:L (1:1:1), (4: dpex='dpae' (Ph2As(CH2)(2)AsPh2), In L tpy); 5: dpex=dppp; L='phen' (1,10-phenanthroline), 6: dpex=dppp; L='dmp' (2,9-dimethyl,1,10-phenanthroline)). AgNO3:dpem:tpy (2:1:1) (1,2), tpy acts as a bridging bis(chelate), the central pyridine donor in 'crevice' coordination mode: [(ONO2)- Ag(E-dpem-E')(N,N'-tpy-N',N'')Ag(O2NO)]. A further bridging tpy is found in tetranuclear AgNO3:dppp:tpy (2:1:1)(2) (3), in which the wrapping of a centrosymmetric Ag(mu-ONO2)(2)Ag kernel by P-dppp-P' to form [Ag(mu-ONO2)(2)(P-dppp-P')(2)Ag] is pre-empted by the insertion of (Agtpy) into one of the potential Ag-P bonds of each ligand, the third pyridine of the bidentate tpy bridging to a kernel silver atom. AgClO4:dpae:tpy (1:1:1)((infinity vertical bar infinity)) (4) is a single-stranded polymer (Ag-...(tpy)(As-dpae-As')Ag(tpy)(...))((infinity vertical bar infinity)), while AgClO4:dppp:L (1:1:1)(2) (5,6) are dimers of the form [LAg(P-dppp-P')(2)AgL]. (c) 2006 Elsevier B.V. All rights reserved.