Poly[[μ-2-(benzotriazol-1-yl)acetato-κ :': ]chlorido-(ethanol-κ)cobalt(II)].

In the title compound, [Co(CHNO)Cl(CHOH)] , the Co atoms adopt octa-hedral -CoNO and tetra-hedral CoClO coordination geometries (site symmetries and , respectively). The bridging μ-:: 2-(benzotriazol-1-yl)acetato ligands connect the octa-hedral cobalt nodes into (010) sheets and the CoCl fragments link the sheets into a tri-periodic network. The structure displays O-H⋯O hydrogen bonding and the ethanol mol-ecule is disordered over two orientations.

Correlation between the Human Development Index and the Incidence and Mortality of Non-Hodgkin Lymphoma.

Objective: This study was to examine the relationship between socioeconomic status and the incidence and mortality of non-Hodgkin lymphoma (NHL).

Methods: We compared the age-standardized incidence rate (ASIR), age-standardized mortality rate (ASMR), and the ASMR to ASIR ratio (MIR) at national and regional levels and studied the correlation between the MIR and the human development index (HDI) in 2012 and 2018.

Results: The highest ASIR was in North America in 2012 and in Australia in 2018, and the lowest ASIR was in Central and South Asia in both 2012 and 2018.

Assembly of an undeca-nuclear nickel substituted POM through polycarboxylate ligand.

An undeca-nuclear nickel substituted POM, namely [Ni(H(2)O)(6)][Ni(11)(PW(9)O(34))(2)(IDA)(3)(en)(2)(Hen)(2)(OH)(6)]·(H(2)O)(7)·(H(2)en)(2) (1) (en = 1,2-ethylenediamine, H(2)IDA = iminodiacetic acid), was synthesized through hydrothermal reaction of Na(6)PW(9)O(34), en, H(2)IDA and NiCl(2)·6H(2)O. Single-crystal structure reveals that 1 can be viewed as Ni(6)PW(9) and Ni(5)PW(9) units linked by a μ(3)-O bridge and two IDA(2-) ligands. Magnetic investigation indicates the presence of dominantly ferrimagnetic interactions within the Ni(11) core.

pH-dependent assembly of 0D to 3D Keggin-based coordination polymers: structures and catalytic properties.

Four Keggin-based coordination polymers, namely, {[Cu2(4,4'-bpy)(4,4'-Hbpy)4(H2O)4](SiW12O40)2(H2O)4}n (1), {[Cu2(4,4'-bpy)(4,4'-Hbpy)6(SiW12O40)3](4,4'-Hbpy)2(H2O)7}n (2), {[Cu2(mu2-H2O)2(4,4'-bpy)3(SiW12O40)](H2O)6}n (3) and {[Cu2(mu2-OH)(4,4'-bpy)3(SiW12O40)(H2O)] [Cu2(mu2-O)(4,4'-bpy)4(H2O)2]0.5 x (H2O)3}n (4) (4,4'-bpy = 4,4'-bipyridine) were prepared through the hydrothermal reaction of silicotungstic acid, copper(II) nitrate and 4,4'-bipyridine under different pH conditions. Coordination polymers 1 and 2, which exhibit 0D and 1D structures respectively, were prepared at pH = 3.

An investigation of vitamin B12 deficiency in elderly inpatients in neurology department.

Objective: To investigate the status of vitamin B12 deficiency in elderly inpatients in the department of neurology.

Methods: A total number of 827 patients in the department of neurology of Shanghai Punan hospital, from March 2007 to July 2008, were employed in the present study. They were 60 years or older, and the average age was 77.