Structural analysis of interpenetrated methyl-modified MOF-5 and its gas-adsorption properties.

The first example of an interpenetrated methyl-modified MOF-5 with the formula ZnO(DMBDC)(DMF), where DMBDC is 2,5-dimethylbenzene-1,4-dicarboxylate and DMF is N,N-dimethylformamide (henceforth denoted as MeMOF-5-int), namely, poly[tris(μ-2,5-dimethylbenzene-1,4-dicarboxylato)bis(N,N-dimethylformamide)-μ-oxido-tetrazinc(II)], [Zn(CHO)O(CHNO)], has been obtained from a solvothermal synthesis of 2,5-dimethylbenzene-1,4-dicarboxylic acid and Zn(NO)·6HO in DMF. A systematic study revealed that the choice of solvent is of critical importance for the synthesis of phase-pure MeMOF-5-int, which was thoroughly characterized by single-crystal and powder X-ray diffraction (PXRD), as well as by gas-adsorption analyses. The Brunauer-Emmett-Teller surface area of MeMOF-5-int (660 m g), determined by N adsorption, is much lower than that of nonpenetrated MeMOF-5 (2420 m g).

Structural analysis of and selective CO adsorption in mixed-ligand hydroxamate-based metal-organic frameworks.

Two mixed-ligand metal-organic frameworks, [Zn(BDHA)(INA)] (MOF-1: HBDHA = benzene-1,4-dihydroxamic acid; HINA = isonicotinic acid) and [Co(BDHA)(INA)(DMF)] (MOF-2), were solvothermally synthesized and fully characterized by single-crystal X-ray crystallography as well as N, H, and CO gas-sorption measurements. The results constitute the first detailed analysis of the bonding environment around the hydroxamates in such MOFs, which are simultaneously decorated with Lewis-basic sites from the hydroxamate moieties and metal sites predisposed for coordinative unsaturation. MOF-2 shows a desirably selective adsorption of CO relative to N.

Efficacy of Complex Fractionated Atrial Electrogram-Guided Extensive Encircling Pulmonary Vein Isolation for Persistent Atrial Fibrillation.

In persistent AF, the effect of adjunctive ablation in addition to PV isolation (PVI) is controversial. We considered a new modified PVI including complex fractionated atrial electrogram (CFAE) area. In 57 patients with persistent AF undergoing first ablation, CFAE were mapped before ablation and CFAE-guided extensive encircling PVI (CFAE-guided EEPVI) was performed.

The ReACT Trial: Randomized Evaluation of Routine Follow-up Coronary Angiography After Percutaneous Coronary Intervention Trial.

Objectives: The purpose of this study was to evaluate long-term clinical impact of routine follow-up coronary angiography (FUCAG) after percutaneous coronary intervention (PCI) in daily clinical practice in Japan.

Background: The long-term clinical impact of routine FUCAG after PCI in real-world clinical practice has not been evaluated adequately.

Methods: In this prospective, multicenter, open-label, randomized trial, patients who underwent successful PCI were randomly assigned to routine angiographic follow-up (AF) group, in which patients were to receive FUCAG at 8 to 12 months after PCI, or clinical follow-up alone (CF) group.