Taike Duan

Heterometallic Aggregates of Copper(I) with Metalloligand Sn(edt)2 (edt = ethane-1,2-dithiolate): Syntheses and Structures of [Sn(edt)2Cl(μ-I)(μ3-I)(CuPPh3)3], [Sn(edt)2(μ-Br)2(μ3-Br)2(CuPPh3)4], and [{Sn(edt)2}3(μ-OH)3Cu5(PPh3)8][PF6]2

The treatment of a slurry of an equimolar mixture of [Sn(edt)(2)] (edt = ethane-1,2- dithiolate) and [Et(4)N]Cl.xH(2)O with CuI in the presence of PPh(3) gave a tetranuclear compound, [Sn(edt)(2)Cl(mu-I)(mu(3)-I)(CuPPh(3))(3)] (1), which consists of a rectangular-pyramidal [Sn(edt)(2)Cl](-) moiety ligated by three [Cu(PPh(3))](+) fragments via the sulfur atoms of the edt(2-) ligands. The treatment of a slurry of [Sn(edt)(2)] and excess [Et(4)N]Br with [Cu(MeCN)(4)][PF(6)] in the presence of PPh(3) afforded a pentanuclear compound, [Sn(edt)(2)(mu-Br)(2)(mu(3)-Br)(2)(CuPPh(3))(4)] (2), which comprises two [(CuPPh(3))(2)(mu-Br)](+) fragments symmetrically ligating an octahedral trans-[Sn(edt)(2)Br(2)](2-) moiety via the sulfur and bromide atoms. Reaction of [Sn(edt)(2)] with [Cu(MeCN)(4)][PF(6)] and PPh(3) in a mixed MeCN/CH(2)Cl(2) solution yielded a novel octanuclear compound, [{Sn(edt)(2)}(3)(mu-OH)(3)Cu(5)(PPh(3))(8)][PF(6)](2) (3), which may be described as a triangular [{Sn(edt)(2)}(3)(mu-OH)(3)](3-) core chelated by three [Cu(PPh(3))(2)](+) species and capped by two [Cu(PPh(3))](+) species. The luminescent properties of compounds 1, 2, and 3 were investigated in a CH(2)Cl(2) solution at room temperature. Upon excitation at lambda > 360 nm, these compounds are luminescent in CH(2)Cl(2) solution with emissions having maxima at 422, 515, and 494 nm, respectively.

Syntheses and Structures of Trinuclear Trigonal-bipyramidal Silver(I) Complexes with Bis(diphenylphosphino)amide Ligands

Treatment of Ag(CF3CO2) with an equivalent of bis(diphenylphosphino)amide (dppa) gave a trinuclear trigonal-bipyramidal silver(I) complex [Ag3(μ3-Cl)2(μ-dppa)3][CF3CO2]・CH2Cl2・H2O ([1] [CF3CO2]・CH2Cl2・H2O). Reaction of AgNO3 with an equivalent of dppa in the presence of [NH4] [GaCl4] and [Et4N][FeCl4] afforded the corresponding complexes [Ag3(μ3-Cl)2(μ-dppa)3][GaCl4]・ 2THF・MeOH・H2O, ([1][GaCl4]・2THF・MeOH・H2O) and [Ag3(μ-Cl)(μ3-Cl)(μ-dppa)3][FeCl4], ([2] [FeCl4]), respectively. Complexes 1 and 2 contain trigonal-bipyramidal [Ag3(μ3-Cl)2]+ and [Ag3(μ- Cl)(μ3-Cl)]+ cores, respectively, surrounded by three bridging μ-dppa ligands Graphical Abstract Syntheses and Structures of Trinuclear Trigonal-bipyramidal Silver(I) Complexes with Bis(diphenylphosphino)amide Ligands

Bis{2,2′-[(2-amino­eth­yl)aza­nedi­yl]diethanaminium} di-μ-sulfido-bis­(disulfido­germanate)

In the title compound, (C6H20N4)2[Ge2S6], the dimeric [Ge2S6]4− anion is formed by two edge-sharing GeS4 tetrahedral units. The average terminal and bridging Ge—S bond lengths are 2.158 (14) and 2.276 (6) Å, respectively. The anions and the diprotonated ammonium cations are organized into a three-dimensional network by N—H⋯S and N—H⋯N hydrogen bonds.

Bis[4-(2-aza­niumyleth­yl)piperazin-1-ium] di-μ-sulfido-bis­[disulfido­germanate(II)]

In the title compound, (C6H17N3)2[Ge2S6], the dimeric [Ge2S6]4− anion is formed by two edge-sharing GeS4 tetrahedral units. The average terminal and bridging Ge—S bond lengths are 2.164 (2) and 2.272 (8) Å, respectively. The dimeric inorganic anions and the organic piperazinium cations are organized into a three-dimensional network by N—H⋯S hydrogen bonds.

Bis[3,3'-(piperazine-1,4-di-yl)-dipropan-aminium] di-μ(2)-sulfido-bis-[disulfido-german-ate(IV)].

In the title compound, (C10H26N4)2[Ge2S6], the dimeric [Ge2S6]4− anion formed by two edge-sharing GeS4 tetrahedral units lies around an inversion centre. The average terminal and bridging Ge—S bond lengths are 2.162 (7) and 2.267 (15) Å, respectively. The inorganic anions and organic cations are organized into a three-dimensional network by numerous N—H⋯S hydrogen bonds.

Syntheses, Structures and Photoluminescent Properties of the Two Novel Coordination Polymers [Cd(pydc)2(tu)]n and [Cd2(SO4)(nic)2(tu)1.5(H2O)2]n (pydc = Pyridine-2,3-dicarboxylate, nic = Nicotinate, tu = Thiourea)

Two novel cadmium coordination polymers, [Cd(pydc)2(tu)]n (1) and [Cd2(SO4)(nic)2(tu)1.5 - (H2O)2]n (2) (pydc = pyridine-2,3-dicarboxylate, nic = nicotinate, tu = thiourea), have been synthesized under hydrothermal conditions and structurally characterized by X-ray diffraction analysis. 1 is a one-dimensional ladder coordination polymer in a two-dimensional network formed by hydrogen bonds. 2 consists of two kinds of Cd(II) centers in different coordination environments connected via nicotinate and sulfate to form a two-dimensional grid network integrated in a three-dimensional framework generated by hydrogen bonds. 2 shows intense fluorescent emission in the solid state at room temperature Graphical Abstract Syntheses, Structures and Photoluminescent Properties of the Two Novel Coordination Polymers [Cd(pydc)2(tu)]n and [Cd2(SO4)(nic)2(tu)1.5(H2O)2]n (pydc = Pyridine-2,3-dicarboxylate, nic = Nicotinate, tu = Thiourea)

Tetra­ethyl­ammonium trichlorido(η6-p-cymene)ruthenate(II)

In the title salt, [(C2H5)4N][RuCl3(C10H14)], the RuII atom shows an octahedral coordination in which the aromatic ring of the p-cymene molecule occupies three coordination positions.

Bis[1,3-bis­(diphenyl­phosphan­yl)propane]­copper(I) tetra­chlorido­gallate(III)

In the title compound, [Cu(C27H26P2)2][GaCl4], the CuI atom in the complex cation is P,P′-chelated by two 1,3-bis(diphenylphosphanyl)propane ligands in a distorted tetrahedral geometry, while the GaIII cation is coordinated by four chloride anions in a distorted tetrahedral geometry. In the crystal, weak C—H⋯π interactions occur between adjacent complex cations.

Bis[(diphenyl­phosphanylmeth­yl)diphenyl­phosphane sulfide-κ2P,S]copper(I) hexa­fluoridophosphate

In the title compound, [Cu(C25H22P2S)2]PF6, the CuI atom, lying on a twofold rotation axis, adopts a distorted tetrahedral geometry. The (diphenylphosphanylmethyl)diphenylphosphane sulfide ligand coordinates to the CuI atom through one S and one P atom, forming a stable five-membered chelate ring. The P atom of the PF6 − anion also lies on a twofold rotation axis.

Chloridobis(1,2,3,4-tetra­hydro-1,4,6,11-tetra­aza­naphthacene-κN6)copper(I)

In the title complex, [CuCl(C14H12N4)2], the CuI atom, lying on a twofold rotation axis, is coordinated by two N atoms of two 1,2,3,4-tetrahydro-1,4,6,11-tetraazanaphthacene ligands and one Cl atom, also lying on the twofold rotation axis, in a distorted trigonal-planar geometry. The complex molecules are connected into a one-dimensional structure along [001] via N—H⋯N hydrogen bonds and further into a three-dimensional structure via N—H⋯Cl hydrogen bonds. π–π interactions between the pyrazine and benzene rings and between the benzene rings [centroid–centroid distances = 3.5635 (15) and 3.9128 (16) Å] are present.