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Three luminescent silver(I)-oligo(phenylenevinylene) complexes, [Ag2(bmsb)(ClO4)2] (1), [Ag2(bmsb)(H2O)4](BF4)2 (2), and [Ag2(bdb)(CF3SO3)2] (3) (bmsb = 1, 4-bis(methylstyryl)benzene, bdb = 4,4'-bis(2, 5-dimethylstryryl)biphenyl), have been synthesized and structurally characterized. Complexes 1 and 2 are 2D networks with unique metallocyclophane motifs. Complex 3 affords a 2D zigzag sheet, in which silver triflates form tubelike double chains and bdb molecules act as linkages. Complex 2 exhibits high electric conductivity because of columnar aromatic stackings formed through intra- and intermolecular pi-pi interactions. Complexes 1-3 in the solid state exhibit luminescence, of which excitation and emission maxima are shifted to longer wavelength as compared to those of the corresponding metal-free ligands.

A new type of silver(I) coordination complex derived from silver(I) perchlorate (or triflate) and polycyclic aromatic compounds is reviewed. Structural studies by single-crystal X-ray diffraction have shown that all compounds contain extended one- to three-dimensional structures in which several metal atoms are sandwiched between two fused polycyclic systems. Special attention is paid to the combination of the plasticity of the metal ion, coordinative versatility of the aromatic ligand, solvent effect and the nature of the counteranions for designing metal complexes with a wide range of infinite frameworks.

A new class of metal sandwich complexes of silver derived from silver(I) perchlorate and fluoranthene (L1), benzo[ghi]perylene (L2), [2,2]paracyclophane (L3), and decacyclene (L4) was prepared. The idea behind the use of polycyclic aromatic compounds as an alternative approach for construction of organometallic sandwich systems is to combine the plasticity of the metal ion and planarity and coordinative diversity of the hydrocarbons. Structural studies by single-crystal X-ray diffraction have shown that all compounds contain extended one- to three-dimensional structures in which several metal atoms are sandwiched between two fused polycyclic systems. While complex 1, [Ag3(L1)2(ClO4)3], exists in the solid state as a two-dimensional W-type architecture in which AgClO4 layers are separated by two sheets of hydrocarbon, complex 2, [Ag(L2)(ClO4)]4·toluene, contains two double-decker polymeric chains coupled via extensive aromatic π−π stackings. Pillared brick sandwiched framework was observed in 3, [Ag(L3)(Cl...

This paper describes two copper(I) supramolecules with the same anion and cation but quite different topologies and properties. The reaction of [Cu(CH(3)CN)(4)]PF(6) and 1,2,4,5-tetracyanobenzene (TCNB) leads to two novel polymeric coordination compounds, [Cu(2)(TCNB)(3)](PF(6))(2)(Me(2)CO)(4)( )()(1) and [Cu(2)(TCNB)(3)](PF(6))(2) (2), depending on the solvents used. The crystal structures have been determined by single-crystal X-ray diffraction. Crystal data are as follows. 1: C(21)H(15)N(6)O(2)CuPF(6), monoclinic, P2(1)/a, a = 11.553(4) Å, b = 16.135(7) Å, c = 15.046(3) Å, beta = 108.08(2) degrees, Z = 4. 2: C(15)H(3)N(6)CuPF(6), orthorhombic, Cmcm, a = 28.282(3) Å, b = 10.337(3) Å, c = 16.285(4) Å, Z = 16. In both polymers, copper(I) ions have similar pseudotetrahedral environments and the four coordination sites are fully occupied by the four bridging ligands, twomgr;(2)-TCNB and twomgr;(4)-TCNB groups. Polymer 1, obtained in acetone, revealed a two-dimensional zigzag sheet network between copper(I) ions, whereas 2, synthesized in methylethyl ketone, displayed a three-dimensional porous framework with different functional groups (or atom) in different cavities. The redox, magnetic, and conductive behaviors of both complexes are discussed. It is demonstrated that the two complexes give different physicochemical properties.

Four organosilver(I) complexes of polycyclic aromatic hydrocarbons (PAHs) have been investigated crystallographically. The aim was to establish whether a favorable combination of cation-π interactions and aromatic stackings might produce functional organometallic solid materials with novel networks. Complete structures of the silver(I) perchlorate with 9,10-diphenylanthracene (L1), rubrene (L2), benzo[a]pyrene (L3), and coronene (L4) were determined by X-ray diffraction. All compounds are organometallic species based on cation-π interactions. While complex 1 with L1 revealed a discrete mononuclear structure, complex 2 with rubrene displayed a π-bonded 3-D polymer. Complexes 3 and 4 can be regarded as both coordination polymer and stacking polymer, and the detailed differences in the geometries and the stacking patterns of L3 and L4 gave helical and triple-decker networks, respectively. The ESR spectroscopic results and conductivity of the compounds are also discussed. The present findings may serve as a b...