A host-guest complex between a metal-organic cyclotriveratrylene analog and a polyoxometalate: [Cu6(4,7-phenanthroline)8(MeCN)4]2PM12O40(M = Mo or W).

The synthesis and crystal structure of Cu(6)(4,7-phenanthroline)(8)(MeCN)(4)(6+) a novel Cu(i)-molecular hexamer is described in which the metal cations and phenanthroline molecules self-assemble into a dimer of shallow triangular-shaped bowls, within which are located large spherical polyoxometalate anions PM(12)O(40)(3-)(M = Mo or W).

A mixed-ligand coordination polymer from the in situ, Cu(I)-mediated isomerization of bis(4-pyridyl)ethylene.

Reaction of [Cu(PPh(3))(2)(MeCN)(2)]PF(6) and trans-1,2-bis(4-pyridyl)ethylene (bpe) results in the trans-cis isomerization of the bpe and subsequent formation of a mixed-isomer linear coordination polymer over the course of several days or weeks depending on solvent. The one unique copper atom in the structure is coordinated to two bridging cis-bpe ligands, one bridging trans-bpe ligand, and one terminal triphenylphoshine ligand to create [Cu(trans-bpe)(0.5)(cis-bpe)(PPh(3))](+)( infinity ) zigzag chains. The reaction requires both visible light and Cu(I), and the crystallization of this particular coordination polymer is insensitive to the ratio of trans:cis isomers in solution, occurring both from trans-rich and cis-rich solutions.

A polyoxometallate-templated coordination polymer: synthesis and crystal structure of [Cu3(4,4'-bipy)5(MeCN)2]PW12O(40).2C6H5CN.

The spherical phosphotungstate ion, PW12O40(3-), has been used as a non-coordinating anionic template for the construction of a novel, three-dimensional Cu(I) coordination polymer.

New Linear Coordination Polymers Based on Copper(I) and 4,7-Phenanthroline: Structure Dependence on Solvent and Counteranion.

Three new linear coordination polymers containing Cu(I) and 4,7-phenanthroline (phen) have been synthesized and structurally characterized by single-crystal X-ray diffraction. [Cu(phen)(MeCN)(2)]PF(6) (3) and [Cu(phen)(MeCN)]BF(4) (4) are prepared from acetonitrile, and [Cu(phen)(BzCN)]BF(4) (5) is made from benzonitrile (MeCN = acetonitrile; BzCN = benzonitrile). All of the compounds have linear polymeric structures containing Cu(I) centers coordinated by two bridging 4,7-phenanthroline ligands, with additional coordinated solvent molecules completing the copper coordination sphere. In 3 and 4, when acetonitrile is used, two and one MeCN solvent molecules coordinate to each Cu atom, resulting in a distorted tetrahedral and distorted trigonal geometry, respectively. The major interchain interactions are phenanthroline pi-pi stacks. When benzonitrile is used in 5, the chain-packing motif changes to allow the coordinated benzonitrile ligands to participate in the interchain pi-pi stacking. Crystal data: for [Cu(phen)(MeCN)(2)]PF(6) (3), monoclinic, space group P2(1)/c (No. 14), with a = 11.4303(6) Å, b = 11.4954(6) Å, c = 14.0444(7) Å, beta = 99.948(1) degrees, and Z = 4; for [Cu(phen)(MeCN)]BF(4) (4), monoclinic, space group P2(1)/c (No. 14), with a = 8.7677(5) Å, b = 11.5140(7) Å, c = 14.8858(9) Å, beta = 96.548(1) degrees, and Z = 4; for [Cu(phen)(BzCN)](2)2BF(4) (5), triclinic, space group P&onemacr; (No. 2), with a = 11.338(1) Å, b = 12.461(1) Å, c = 13.904(1) Å, alpha = 115.909(2) degrees, beta = 100.870(2) degrees, gamma = 92.052(2) degrees, and Z = 2.