In the title compound, C(20)H(19)O(4), the benzene rings, linked via five methyl-ene C atoms, form a dihedral angle of 77.28 (6)°. In the crystal, mol-ecules are linked via pairs of weak C-H⋯O inter-actions [graph set R(2) (2)(6)] into dimers that are further connected by additional weak C-H⋯O interactions [graph sets R(2) (2)(14), R(2) (2)(26) and R(2) (2)(6)].

Maneesh Sahani Due: Thu Dec 10, 2015 Note:all assignments for this course are to be handed in to the Gatsby Unit, not to the CS department. Please give all assignments to the lecturer or TAs at the beginning of lecture on or before the due date. Alternatively, your may bring coursework to Mr. Barry Fong at the Gatsby Unit reception. This is a combined assignment worth 150 marks (plus bonuses). ...

In the title salt, C(12)H(11)N(2)O(2) (+)·C(7)H(4)NO(5) (-), the cations and anions inter-act through asymmetric cyclic pyridinium-carboxyl-ate N-H⋯O,O' hydrogen-bonding associations [graph set R(1) (2)(4)], giving discrete heterodimers having weak cation-anion π-π aromatic ring inter-actions [minimum ring centroid separation = 3.7116 (9) Å].

A decentralized failure detection and isolation (FDI) methodology, which is robust with respect to model uncertainties and noise, is presented. Redundancy metrics are developed, and optimization problems are posed for the choices of robust parity relations. Closed-form solutions for some special failure cases are given. Connections are drawn with other disciplines, and the use of the metrics to...

this study describes the organic synthesis of 5-(2-amimo-4-styryl pyrimidine-4-yl)-4-methoxy benzofuran-6-ol (spbf) as an example of a benzofuran derivative used as a new series of amyloid imaging agents. these benzofuran derivatives may be useful amyloid imaging agents for detecting b-amyloid plagues in the brain of alzheimer’s disease. the precursor is 1-[6-hydroxy-4-methoxybenzofuran-5-yl]-p...