Bis[1,3-bis­(1-benzyl-1H-benzimidazol-2-yl)-2-oxapropane]zinc(II) dipicrate dimethyl­formamide disolvate

In the title compound, [Zn(C30H26N4O)2](C6H2N3O7)2·2C3H7NO, the ZnII ion is coordinated in a distorted octa­hedral environment involving four equatorial N atoms and two O atoms in axial sites. The dihedral angles between the benzimidazole ring system and the phenyl rings in each of the benzyl­benzimidazole units are 78.56 (12), 81.68 (11), 75.76 (10) and 85.78 (9)°. In the crystal structure, there are weak but significant inter­molecular π–π stacking inter­actions with centroid–centroid distances of 3.685 (1) and 3.978 (1) Å

Six-month adherence to Statin use and subsequent risk of major adverse cardiovascular events (MACE) in patients discharged with acute coronary syndromes

Acknowledgements: The authors thank all participants who contributed to the study. Funding: CPACS-1 was funded by unrestricted educational grants from Guidant and Sanofi-Aventis, and grants from The Royal Australasian College of Physicians. AP is supported by an Australian National Heart Foundation Career Development Award. CPACS-2 was funded by an unrestricted grant from Sanofi-Aventis China. The George Institute for Global Health at Peking University Health Science Center sponsored the study and owns the data. Data analyses and reports were supported by Beijing Science and Technology Key Research Plan (D151100002215001). However, the authors are solely responsible for the design, analyses, the drafting and editing of the manuscript, and its final contents.Peer reviewedPublisher PD

Generalization and modelling of rigid polyisocyanurate foam reaction kinetics, structural units effect, and cell configuration mechanism

PIR/PUR ratio was derived from differential manipulation of generalized polyisocyanurate kinetic model. The structural unit effects on polymerization of isocyanurate, urethane and urea linkages were evaluated based on Mayo-Lewise tercopolymerization scheme. The cell microstructural configuration model was further developed from profiled FOAMAT reactivity parameters with integrated analysis of cell interface physics. The interstitial border area was defined by interface free energy theory, the shear viscosity was evaluated by foam motion, gas fraction, and partial pressure, and the cell inflation was re-examined by gas-liquid surface tension variability. The cell anisotropic degree, assumed as an aspect ratio of infinitesimal volume elements in cell uniformity, was characterized by equilibrated work increase of surface energy approximated by 2D stretching deformation from sphere cell to spheroid cell. The relationship between pressure and surface tension of elongated cells was also derived from modelling at the same condition of cell deformation

Near-infrared photoluminescence from molecular crystals containing tellurium

We report the observation of near-infrared photoluminescence from Te4(Ga2Cl7)2 and Te4(Al2Cl7)2 molecular crystals containing Te42+ polycations. The experimental and theoretical results clearly revealed that Te42+ polycation is one smart near-infrared emitter with characteristic emission peaks at 1252 and 1258 nm for Te4(Ga2Cl7)2 and Te4(Al2Cl7)2 crystals, respectively, resulting from the intrinsic electronic transitions of Te42+. Furthermore, it was also found that the emissions strongly depend on the excitation wavelengths for both Te4(Ga2Cl7)2 and Te4(Al2Cl7)2 samples, most possibly owing to the co-existence of other Te-related optically active centers. This research not only enriches the species of luminescent charged p-block element polyhedra and deepens the understanding of Te-related photophysical behaviors, but also may stimulate efforts for designing novel material systems using such active centers. It is also greatly expected that these sub-nanometer optically active species could exist in other systems such as glasses, polymers, and bulk optical crystals, and the stabilization of these centers in widely used hosts will pave the way for their practical applications

Aqua(dimethylformamide){tris[(1-methyl-1H-benzimidazol-2-yl)methyl]amine}nickel(II) dipicrate

In the title complex, [Ni(C27H27N7)(C3H7NO)(H2O)](C6H2N3O7)2, the NiII ion is coordinated in a slightly distorted octa­hedral coordination evironment by an NiN4O2 ligand set. The tris­(N-methyl­benzimidazol-2-ylmeth­yl)amine ligand is in a tetra­dentate mode while a coordinated water molecule and a dimethyl­formamide ligand complete the coordination. In the crystal structure, inter­molecular O—H⋯O hydrogen bonds link the cation and one of the pictrate anions into four-component centrosymmetric clusters

(2-Hydroxy­benzoato-κO 1)[tris­(1-methyl­benzimidazol-2-ylmethyl-κN 3)amine-κN]cobalt(II) perchlorate dimethyl­formamide sesquisolvate

In the title complex, [Co(C7H5O3)(C27H27N7)]ClO4·1.5C3H7NO, the CoII ion is five-coordinated by four N atoms from a tris­(N-methyl­benzimidazol-2-ylmeth­yl)amine (Mentb) ligand and one O atom from a salicylate ligand in a distorted trigonal–bipyramidal geometry with approximate mol­ecular C 3 symmetry. The perchlorate ion is disordered over two sites with equal occupancy. One dimethyl­formamide solvent mol­ecule lies on a general position and is disordered over two coplanar orientations with equal occupancy. A second dimethyl­formamide mol­ecule is disordered about a twofold rotation axis. There is an intra­molecular O—H⋯O hydrogen bond in the cation

Bis[bis­(1-ethyl­benzimidazol-2-ylmeth­yl) ether]cobalt(II) dipicrate dimethyl­formamide disolvate

In the title complex, [Co(C20H22N4O)2](C6H2N3O7)2·2C3H7NO, the CoII ion is coordinated by two sets of two N atoms and an O atom from two independent tridendate ligands in a distorted octa­hedral coordination environment. There are significant differences between chemically equivalent coordination bond lengths. The crystal structure is stabilized by weak inter­molecular C—H⋯O hydrogen bonds and weak π–π stacking inter­actions [centroid–centroid distance 3.495 (1) Å]. In one of the anions one nitro group is rotationally disordered about the C—N bond with refined occupancies of 0.524 (8) and 0.476 (8)

Aqua­[1,3-bis­(benzimidazol-2-yl)-2-oxapropane]­diethano­lmanganese(II) dipicrate ethanol disolvate

In the title complex, [Mn(C16H14N4O)(C2H5OH)2(H2O)](C6H2N3O7)2·2C2H5OH, the MnII ion is in a distorted octa­hedral coordination environment, defined by an MnN2O4 donor set. The 1,3-bis­(benz­imid­azol-2-yl)-2-oxapropane ligand is tridentate. In the crystal structure, inter­molecular N—H⋯O and O—H⋯O hydrogen bonds link the components into a three-dimensional network. The O atoms of one of the nitro groups are disordered over two sets of sites with refined occupancies of 0.577 (11) and 0.423 (11)