Single crystal X-ray structural characterizations are recorded for a number of adducts of MX:dpex (2:3) stoichiometry (MX = simple univalent copper or silver salt; dpex = Ph2E(CH2)xEPh2 (E = P, As)). CuX:dppe (2:3) (X = Cl, Br, I, CN) are binuclear [(dppe-P,P′)CuX(P-dppe-P′)CuX(P,P′-dppe)], all centrosymmetric. AgX:dpex (2:3) (dpex = ‘dpae’ (Ph2As(CH2)2AsPh2), X = Br, F3CCO2 (= ‘tfa’), F3CSO3 (≡ ‘tfs’); dpex = ‘dpape’ (Ph2As(CH2)2PPh2), X = CN, SCN, OClO3) are one-dimensional polymers ⋯–E′)1AgX(E-dpex-E′)2-AgX(E-dpex-E′)1AgX⋯, P, As sites scrambled in the latter. AgNO3:dpam (2:3) is also a one-dimensional polymer, ⋯AgO·NO·OAg(As-dpam-As)AgO·NO·OAg⋯ (‘dpam’ ≡ Ph2As(CH2)2AsPh2). AgX:dpae (2:3) (X = I, CN, ClO4, NO3) and AgX:dpape (2:3) (X = Br, I, NO3) are two-dimensional polymers with large 30-membered macrocyclic rings; similar webs are found for dppx ligands in AgOH:dppb (2:3) and AgNCO, Agtfa:dpph (2:3) with 42- and 54-membered rings. Complexes AgX:dpape (1:3) (X = Cl, Br) are defined as mono-nuclear [XAg(Ph2P(CH2)2AsPh2)3] arrays, the unidentate ligands predominantly P-bound. Synthetic procedures for the adducts are reported, selected compounds being characterized both in solution (1H, 31P NMR, ESI MS) and in the solid state (IR).
The structural definition of adducts of stoichiometry MX : dpex (2 : 3)((infinity)), M = Cu-I, Ag-I, X =simple anion, dpex = Ph2E(CH2)(x)EPh2, E = P, As
DI NICOLA, CORRADO;PETTINARI, Claudio;PIZZABIOCCA, Adriano;
2006-01-01
Abstract
Single crystal X-ray structural characterizations are recorded for a number of adducts of MX:dpex (2:3) stoichiometry (MX = simple univalent copper or silver salt; dpex = Ph2E(CH2)xEPh2 (E = P, As)). CuX:dppe (2:3) (X = Cl, Br, I, CN) are binuclear [(dppe-P,P′)CuX(P-dppe-P′)CuX(P,P′-dppe)], all centrosymmetric. AgX:dpex (2:3) (dpex = ‘dpae’ (Ph2As(CH2)2AsPh2), X = Br, F3CCO2 (= ‘tfa’), F3CSO3 (≡ ‘tfs’); dpex = ‘dpape’ (Ph2As(CH2)2PPh2), X = CN, SCN, OClO3) are one-dimensional polymers ⋯–E′)1AgX(E-dpex-E′)2-AgX(E-dpex-E′)1AgX⋯, P, As sites scrambled in the latter. AgNO3:dpam (2:3) is also a one-dimensional polymer, ⋯AgO·NO·OAg(As-dpam-As)AgO·NO·OAg⋯ (‘dpam’ ≡ Ph2As(CH2)2AsPh2). AgX:dpae (2:3) (X = I, CN, ClO4, NO3) and AgX:dpape (2:3) (X = Br, I, NO3) are two-dimensional polymers with large 30-membered macrocyclic rings; similar webs are found for dppx ligands in AgOH:dppb (2:3) and AgNCO, Agtfa:dpph (2:3) with 42- and 54-membered rings. Complexes AgX:dpape (1:3) (X = Cl, Br) are defined as mono-nuclear [XAg(Ph2P(CH2)2AsPh2)3] arrays, the unidentate ligands predominantly P-bound. Synthetic procedures for the adducts are reported, selected compounds being characterized both in solution (1H, 31P NMR, ESI MS) and in the solid state (IR).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.