Materials Literature
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By means of symmetry consideration the order parameter ${\mathit{U}}_{\mathit{i}\mathit{j}\mathit{k}}$ of a tetrahedral nematic liquid crystal (LC) was derived. In contrast to other nematic LC's (including uniaxial, biaxial, cubic, and icosahedral phases) the odd rank (=3) of ${\mathit{U}}_{\mathit{i}\mathit{j}\mathit…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT{HB(3,5-Me2pz)3}2Sm(.eta.2-O2): First Example of a Lanthanide Superoxo ComplexXingwang Zhang, Glen R. Loppnow, Robert McDonald, and Josef TakatsCite this: J. Am. Chem. Soc. 1995, 117, 29, 7828–7829Publication Date (Print):July 1, 1995Publication History Published online1 May…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetics of Complex Formation by Macrocyclic Polyaza Polycarboxylate Ligands: Detection and Characterization of an Intermediate in the Eu3+-dota System by Laser-Excited LuminescenceShu Ling Wu and William DeW. Horrocks Jr.Cite this: Inorg. Chem. 1995, 34, 14, 3724–3732Public…
The crystal structure of the complex between the cross-reacting antigen Guinea fowl lysozyme and the Fab from monoclonal antibody F9.13.7, raised against hen egg lysozyme, has been determined by x-ray diffraction to 3-A resolution. The antibody interacts with exposed residues of an alpha-helix and surrounding loops ad…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNovel Ferroelectric and Electroclinic Organosiloxane Liquid CrystalsJ. Naciri, J. Ruth, G. Crawford, R. Shashidhar, and B. R. RatnaCite this: Chem. Mater. 1995, 7, 7, 1397–1402Publication Date (Print):July 1, 1995Publication History Published online1 May 2002Published inissu…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew Method for the Determination of the Trialkylaluminum Content in AlumoxanesAndrew R. BarronCite this: Organometallics 1995, 14, 7, 3581–3583Publication Date (Print):July 1, 1995Publication History Published online1 May 2002Published inissue 1 July 1995https://pubs.acs.org…
The lumazine synthase/riboflavin synthase complex of Bacillus subtilis consists of an icosahedral capsid of 60 beta subunits surrounding a core of three alpha subunits. The beta subunits catalyze the condensation of 5-amino-6-ribityl-amino-2,4(1H,3H)-pyrimidinedione (PYR) with 3,4-dihydroxy-2-butanone 4-phosphate (DHB…
Salivary secretions modulate taste perception. Taste buds in the circumvallate and foliate papillae are bathed in secretions of unique lingual salivary glands, von Ebner's glands (VEG). We have identified a rat cDNA encoding a novel protein of 1290 amino acids, Ebnerin, that is specifically expressed in VEG and releas…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIR and MAS NMR Studies on the Incorporation of Aluminum Atoms into Defect Sites of Dealuminated MordenitesPeng Wu, Takayuki Komatsu, and Tatsuaki YashimaCite this: J. Phys. Chem. 1995, 99, 27, 10923–10931Publication Date (Print):July 1, 1995Publication History Published onli…
Abstract Conventional vulcanization, has a history of over 150 years, during which there have been increasing needs for technology to permit more and more rapid processing before the vulcanization of a rubber article in its final shape. But, at the same time, one desired increased rates of crosslinking after the part…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT19F NMR Spectra and Structures of Halogenated PorphyrinsEva R. Birnbaum, Julia A. Hodge, Mark W. Grinstaff, William P. Schaefer, Lawrence Henling, Jay A. Labinger, John E. Bercaw, and Harry B. GrayCite this: Inorg. Chem. 1995, 34, 14, 3625–3632Publication Date (Print):July 1…
Stress grading on high voltage motor and generator stator windings is becoming more important as the electrical stress in the ground insulation is increased. While there are a variety of possible ways to relieve surface stress, non-linear resistive tapes have been almost universally adopted because of their simplicity…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe role of orbital interactions in determining ferromagnetic coupling in organic molecular assembliesKazunari Yoshizawa and Roald HoffmannCite this: J. Am. Chem. Soc. 1995, 117, 26, 6921–6926Publication Date (Print):July 1, 1995Publication History Published online1 May 2002…
High field strength cations such as rare earth ions are known to show strong clustering when incorporated in minor quantities (hundreds to up to a few thousands of ppm) in highly polymerized silicate liquids and glasses. In this study, formation, distribution and growth of such clusters in Nd2O3-doped SiO2 glasses hav…
Abstract This paper reports on the tensile properties of microcellular foams of three different thermoplastics, since there have been several reports in the literature, but with indefinite conclusions so far, that microbubbles act in a manner similar to rubber particles in toughening thermoplastics. Polystyrene (PS),…
Chitosan is a novel glucosamine biopolymer derived from the shells of marine organisms. This biopolymer is very attractive for heavy metal ion separations from wastewater because it is selective for toxic transition metal ions over less toxic alkali or alkane earth metal ions. Highly porous, 3-mm chitosan beads were p…
Spectrally resolved thermostimulated-luminescence (TSL) measurements have been carried out on samples of synthetic quartz, submitted to different treatments in order to change the type of charge compensation at the substitutional aluminum sites. Near-infrared (NIR) optical absorption, electron paramagnetic resonance (…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAnalyzing Lanthanide-Induced Shifts in the NMR Spectra of Lanthanide(III) Complexes Derived from 1,4,7,10-Tetrakis(N,N-diethylacetamido)-1,4,7,10-tetraazacyclododecaneJohn H. Forsberg, Robert M. Delaney, Qian Zhao, George Harakas, and Rubin ChandranCite this: Inorg. Chem. 19…
Medium voltage (2300V to 4160V) motor stator insulation has been designed to withstand voltage surges from circuit breaker operation for many decades. It is probable that the surges created by ASDs will not pose a threat to properly designed and manufactured insulation. However, as ASDs become more popular in the high…
Abstract LiBC ist eine neue, nur aus den leichten Elementen der Hauptgruppen bestehende Verbindung. Sie entsteht aus den Elementen in verschweißten Niobampullen bei 770 K und anschließendem kurzzeitigen Tempern bei 1 770 K in Form goldglänzender, hexagonaler Plättchen. Entsprechend Li + (BN) − bilden Bor und Kohlensto…