Ten multifunctional cobalt(II) coordination polymers with the formulas of [Co(L 1 )0.5(5-AIP)]­·H2O (1), [Co(L 2 )­(5-AIP)­(H2O)2] (2), [Co(L 3 )0.5­(5-AIP)] (3), [Co(L 4 )0.5­(5-AIP)­(H2O)]­·2H2O (4), [Co(L 5 )­(5-AIP)] (5), [Co(HBTC)­(L 3 )]­·H2O (6), [Co(HBTC)­(L 6 )­(H2O)]­·3H2O (7), [Co(L 2 )­(1,3-BDC)­(H2O)2] (8), [Co2(L 3 )2­(1,3-BDC)2]­·4H2O (9), and [Co2(L 4 )1.5­(1,2-BDC)­(μ2-OH)­(μ3-OH)­(H2O)]­·H2O (10) have been prepared by a hydrothermal technique employing six flexible bis(pyridylamide) ligands with different spacers (L 1 = N,N′-bis(3-pyridyl)­oxamide, L 2 = N,N′-bis(3-pyridyl)­malonamide, L 3 = N,N′-di(3-pyridyl)­succinamide, L 4 = N,N′-bis(3-pyridyl)­adipamide, L 5 = N,N′-bis(3-pyridyl)­heptandiamide, L 6 = N ,N′-bis(3-pyridyl)­sebacicdiamide) and four aromatic polycarboxylic acids mixed ligands (5-H2AIP = 5-aminoisophthalic acid, H3BTC = 1,3,5-benzenetricarboxylic acid, 1,3-H2BDC = 1,3-benzenedicarboxylic acid, and 1,2-H2BDC = 1,2-benzenedicarboxylic acid). Compound 1 exhibits a two-dimensional (2D) double-layer network. Compounds 2 and 8 are isostructural and possess one-dimensional (1D) circle-connecting-circle chain structures derived from 1D [Co(L 2 )] n “Ω”-like chain and 1D [Co(5-AIP)] n ­/[Co(1,3-BDC)] n wavelike chain. Compound 3 possesses a 3,8-connected three-dimensional (3D) coordination framework with {42.6}2­{44.610.79.85} topology. Compound 4 is a 2D network containing a ladder-like chain. Compound 5 reveals a novel 3-fold interpenetrating CdSO4-like framework. Compound 6 is a double-layer coordination network with a (3,5)-connected {42·67·8}{42·6} topology. Complex 7 shows a 2D (4,4) grid layer. Compound 9 features a 2-fold interpenetrating 3D α-Po-related topological framework. Compound 10 is a 6-connected 3D coordination polymer with a {412.63} topology. The spacer length of the bis(pyridylamide) ligands, as well as the substituent group and carboxyl group number of polycarboxylates, shows a significant effect on the ultimate architectures of various cobalt(II) compounds 1–10. The electrochemical behaviors of carbon paste electrodes (CPEs) bulk-modified by compounds 1–10 and the electrocatalytic activities of 1-, 6-, 9-, 10-CPEs have been investigated. The photocatalytic properties of compounds 1–10 toward the degradation of methylene blue (MB) in visible light irradiation have been investigated. The variable temperature magnetic susceptibilities for compounds 3, 5, 9, and 10 indicate the existence of antiferromagnetic exchange interactions.

A novel deep blue-emitting Zn II complex Zn(L c ) 2 (L c -) 2-(1-(6-(9H-carbazol-9-yl)hexyl)-1H-benzo [d]imidazol-2-yl)phenolate) based on a carbazole-functionalized N^O ligand was synthesized by a modified method. Other two Zn II complexes (Znwere also prepared for comparison. The remarkable substitution effect on the photoluminescent and thermal properties of the complexes was studied. The investigation indicated an unexpected amplifying hypsochromic effect of the substituents on the emission of the complex in the solid state: the larger substituent corresponded to the larger blue shift of the emission of the complex (Zn(L c ) 2 has the shortest emission wavelength of 422 nm as the deep blue emission among these three complexes). The stronger steric effect induced by the bulky substitutions should be one of the most important factors. Among the three Zn II complexes, the temperature of decomposition of Zn(L c ) 2 is the highest at 427 °C. Cyclic voltammetry (CV) of the complexes showed that the carbazole moieties remarkably improved the hole injection ability of Zn(L c ) 2 with the HOMO energy level 0.6 eV higher than those of Zn(L a ) 2 and Zn(L b ) 2 . The good hole injection and transporting ability of Zn(L c ) 2 was further proved by its three-layer devices, in which the electroluminescent (EL) emission mainly originated from the electron-transporting Alq 3 layer. Through the four-layer devices with the hole-blocking layer, the pure blue emission of Zn(L c ) 2 at 452 nm was demonstrated. Zn(L c ) 2 seems favorable among the blue-emitting Zn II complexes with a brightness more than 2000 cd m -2 , a high efficiency stability, and an excellent EL spectra stability.

5Metal-organic coordination polymers (MOCPs) are well known organic-inorganic hybrids with infinite structures consisting of metal ions/clusters and organic ligands linked through coordination interactions. MOCPs can be constructed from one or more than one organic bridging ligands (mixed-ligands) and different metal ions. The previous reports prove the fact that the nature of organic ligands and metal ions dominates the final structures as well as properties of the MOCPs in a certain way. Therefore, we focus 10 on discussing the cobalt(II)/copper(II) coordination polymers constructed from the mixed-ligands of polycarboxylates and N-donor ligands, which may possess potential applications in the fields of electrochemistry, electrocatalysis, magnetism and photocatalysis. In this review, we summarize some typical Co(II)/Cu(II) MOCPs based on the mixed bridging organic ligands, aimed to discuss their versatile synthesis methods, topologies and structural influence factors, as well as their tunable properties. 15 All of these aspects are highlighted in this review, which seeks to guide further investigations of cobalt(II)/copper(II) coordination polymers. 65 shown that bis(imidazole)/bis(triazole)/bis(pyridyl) derivatives and polycarboxylate ligands represent the most reliable and typical building blocks which can be jointly applied to synthesize a wide range of desired coordination networks. 13-16 A choice of such connectors in coordination assembly can be rationalized 70 based on the following considerations: (i) the neutral N-donor ligands normally bind to the cobalt(II)/copper(II) ions as the rodlike bidentate tectons; (ii) the polycarboxylate ligands can not

Renal artery pseudoaneurysms after renal transplantation are extremely uncommon and are able to cause severe complications such as aneurysm rupture or renal allograft loss. Treatment often leads to transplant nephrectomy. We successfully treated a transplant renal artery pseudoaneurysm with covered stents, which resulted in well-preserved renal function.

Two novel Anderson-type polyoxometalates (POMs)-based metal-organic frameworks (MOFs), namely, H{Cu2(μ2-OH)2L(1)[CrMo6(OH)6O18]}·4H2O (), {Cu2L(2)[CrMo(VI)5Mo(V)(OH)6O18](H2O)4}·4H2O () (L(1) = N,N'-bis(3-pyridinecarboxamide)-piperazine, L(2) = N,N'-bis(4-pyridinecarboxamide)-piperazine), are hydrothermally synthesized and structurally characterized by single-crystal X-ray diffraction, IR spectra, powder X-ray diffraction (PXRD) and thermogravimetric analyses (TGA). In complex , the hexadentate [CrMo6(OH)6O18](3-) polyoxoanion bridges the Cu(II) ions to generate a 2D Cu-POM inorganic layer, which is further extended by the μ2-bridging L(1) ligands (via ligation of pyridyl nitrogen atoms) to form a 3D MOF with a 4,6-connected {4(4)·6(10)·8}{4(4)·6(2)} topology. Complex is also a 3D POM-based MOF exhibiting a {4(2)·8(4)} topology, which is constructed from the quadridentate [CrMo(VI)5Mo(V)(OH)6O18](4-) polyoxoanions and μ4-bridging L(2) ligands (via ligation of pyridyl nitrogen and carbonyl oxygen atoms). The different coordination modes of POM polyanions and the isomeric bis(pyridylformyl)piperazine ligands play key roles in the construction of the title complexes. In addition, the photocatalytic activities of the title complexes on the degradation of methylene blue (MB) under UV, visible light and sunlight irradiation have been investigated in detail.