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Three phenyl dimer compounds, namely 3,3′-Diformyldiphenoxyethane (C16H14O4) (1), 1-(4-[2-(4-Acetyl-phenoxy)-ethoxy]-phenyl)-ethanone (C17H16N2O3) (2), 1-{4-[2-(4-Acetyl-phenoxymethyl)-benzyloxy]-phenyl}-ethanone (C24H22O4) (3), were obtained and fully characterized, including their crystal structure determinations. The structural properties of two compounds 4, 4′-(ethylenedioxy)dibenzaldehyde) (C16H14O4) (Tewari et al. Acta Cryst. E63:o1930, 2007) [1] (4) and 4-(2-Phenoxy-ethoxy)-benzaldehyde (C15H14O3) (Valgera et al. CCDC 710835, 2016) [2] (5) are discussed with the role of the substituent in crystal packing. In vivo, anti-inflammatory activities of all compounds were studied on Wistar strain albino rats. All the compounds exhibited anti-inflammatory activity except 5. Compounds 1, 2, 4have shown moderate-to-intermediate effects on inhibitory properties. Compound (3) with restricted rotation in the compound-like SC-558 drug was shown to possess good inhibitory properties at 180 min. In silico analysis was performed and compared with experimental in vivo results.

Pad cratering of printed circuit board (PCB) is becoming a prevailing issue encountered in the PCB assemblies which is accelerated when switching to leadfree process. These units with pad cratering may not fail during functional test as and raise potential failure in the field. This paper uses both experimental and finite element analysis (FEA) approaches to understand the pad strength and pad stresses. An extensive mechanical test by pin pull tests are performed on PCB materials. Cohesive elements are employed to simulate the bonding at the interfaces of pad, laminate and fibers. The results from FEA show that the laminate cracking can be successfully simulated. The design variables such as traces and solder fillet impact are also critical for pad cratering.

No Abstract Supporting information for this article is available on the WWW under http://www.angewandte.com or from the author.

No Abstract Supporting information for this article is available on the WWW under http://www.angewandte.com or from the author.

Complexes having the general formula PtX2(diimine) where X2=dithiolate, bis(acetylide) and diimine=bipyridine, phenanthroline and derivatives have been investigated for potential use as chromophores in the conversion of light-to-chemical energy. These complexes, like the analogous X=CN systems, are luminescent in fluid solution. Previous studies of the dithiolate derivatives reveal that they possess a charge transfer excited state involving a mixed metal–dithiolate donor orbital and a π*(diimine) acceptor function with excited state properties including emission energies, lifetimes and redox potentials that are tunable by ligand variation. The bis(acetylide) complexes are brightly luminescent in fluid solution, and their excited state is shown to be MLCT in character, consistent with an earlier proposal. Both sets of diimine complexes show evidence of self-quenching, and for Pt(phen)(CCPh)2, weak excimer emission is observed. The mechanism of quenching has been probed through cross-quenching experiments and is thought to involve Pt⋯Pt interactions. Efforts are now focussing on the use of the PtX2(diimine) chromophores in dyads and triads with the goal of constructing a molecular photochemical device for light-to-chemical energy conversion. Connection of the Pt diimine chromophores to both a donor or reductive quencher and an acceptor is envisioned through new ligand bridges currently being synthesized using Pd-catalyzed coupling reactions and carbonyl condensations.

Depuis la réalisation du Pavillon des Etats-Unis à I'Expo 70 d'Osaka, Japon, la recherche américaine a été centrée sur les tissus incombustibles « permanents », afin de permettre le classement des structures gonflables de faible hauteur et des structures tendues en tant que constructions permanentes, dans l'esprit de la législation en vigueur. Le Dr Geiger, de la Geiger Berger Associates, New York, traite en détail des cinq structures gonflables basses construites ou en cours de construction.

Pad cratering of printed circuit board (PCB) is becoming a prevailing issue encountered in the PCB assemblies which is accelerated when switching to leadfree process. These units with pad cratering may not fail during functional test as and raise potential failure in the field. This paper uses both experimental and finite element analysis (FEA) approaches to understand the pad strength and pad stresses. An extensive mechanical test by pin pull tests are performed on PCB materials. Cohesive elements are employed to simulate the bonding at the interfaces of pad, laminate and fibers. The results from FEA show that the laminate cracking can be successfully simulated. The design variables such as traces and solder fillet impact are also critical for pad cratering.

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Since the design of the United States Pavilion at Expo '70 in Osaka, Japan, research in the United States has concentrated on 'permanent' incombustible fabrics permitting the classification of low-profile air structures and tension structures as permanent buildings within existing building codes. Five low-profile air structures built to date or under construction are discussed in detail by Dr Geiger, of Geiger Berger Associates, New York.