Lawrence H. Merwin

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Proton NMR images of solid propellant materials, consisting of a polybutadiene binder material filled with 82% solid particles, have been obtained at a magnetic field strength of 14.1 T and at a resolution of 8.5 x 8.5 micron. The images are the first of elastomeric materials obtained at a proton frequency of 600 MHz and have the highest spatial resolution(More)
In previous papers [1-3] we have reported the synthesis and the complexation studies of phenylenedioxyacetamides and their saturated analogs. These compounds have the ability to complex C a++ and K + cations. In order to extend the appli­ cation and knowledge about these compounds, we have investigated the chemistry of mono and di­ acetamides derived from(More)
Various (arene)tricarbonylchromium complexes were synthesized within the confines of NaX zeolite and studied with diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) and carbon-13 magic-angle-spinning nuclear magnetic resonance (MAS NMR) spectroscopy. In each case, the surface complex Cr(CO)3(Oz)3 (Oz represents a framework oxygen of the(More)
High-resolution solid state 13C, 23Na and 31P NM R data have been obtained for the acid form and for several salts o f the phosphonic acids: ethane-1 ,2 -diphosphonic acid, ethane-l-hydroxy1.1-diphosphonic acid (H E D P ), and 3-am ino-l-hydroxypropane-l,l-diphosphonic acid. The data provide evidence by which sample purity and crystallinity may be examined(More)
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