Metalloporphyrin Zeolite Analogue Demonstrates Selective Absorption of Polar Solvents
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ber of CNTs able to escape from the pores therefore depends on the pore dimensions. The researchers plan further investigation in order to quantify this geometric effect and said that “this approach should facilitate novel possibilities for the fundamental characterization and applications of microelectronic devices such as CNT-based field emitters.” STEVEN TROHALAKI
Metalloporphyrin Zeolite Analogue Demonstrates Selective Absorption of Polar Solvents A highly crystalline solid-state material similar to that of zeolites has been synthesized using carboxylic functionalized metalloporphyrins and cobalt ions. Researchers from the University of Illinois at Urbana-Champaign led by Kenneth S. Suslick demonstrated this synthetic
method to produce such zeolite analogues in their article in the October issue of Nature Materials. This material, CoT(p-CO2)PPCo1.5, called PIZA-1, was synthesized by heating [H5T(p-CO5H)PP] and CoCl2•6H2O in a sealed tube with a pyridine/KOH solvent at 150°C for 2 days. Single-crystal x-ray analysis revealed a neutral and highly crystalline network of ruffled Co(III) por-
Independent Committee Committee Finds Finds Scientific Scientific Misconduct Misconduct in in Investigation Investigation of of Bell Bell Labs Labs Researcher Researcher Hendrik Hendrik Schön Schön Independent Bell Labs (Murray Hill, N.J.) announced on September 25 the findings of an independent committee it formed to investigate possible scientific misconduct, the validity of data, and scientific methodology used in a series of papers published by Hendrik Schön and co-authors. In its report, the committee concluded that Schön had engaged in scientific misconduct in 16 out of 24 allegations based on work published between 1998 and 2001. Schön’s employment with Lucent Technologies/Bell Labs has been terminated. The committee cleared the other researchers who had contributed to the experiments, and who were co-authors on several published papers, of any scientific misconduct. Bell Labs formed the committee in May after questions arose regarding the validity of data in several published papers authored by a total of 20 researchers from Bell Labs and other institutions. It named Malcolm Beasley (Stanford University) as chair; and as members: Supriyo Datta (Purdue University), Herwig Kogelnik (Lucent Technologies), Herb Kroemer (University of California—Santa Barbara), and Don Monroe (Agere Systems). The research work in question encompassed a number of areas in condensedmatter physics and solid-state devices. These included field-induced hightemperature superconductivity in various materials, organic single-molecule transistors, organic field-effect transistors, organic junction lasers, plastic Josephson junctions, and tunable superconducting weak links. The allegations under examination were grouped into three categories: (1) substitution of data, (2) unrealistic precision of data, and (3) results contradicting known physics. An example cited by the committee of the substitution of data includes work on selfassembled monolayer
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