Chemistry of metal β-diketonates

The chemistry of metal β-diketonates broadly follows the pattern in 1887. Three types of metal β-diketonate complexes : (i) oxygen bonded, (ii) carbonbonded and (iii) both oxygen and carbon bonded have been synthesised by a variety of routes. Out of these, the reactions of various β-diketones and β-ketoesters with simple and bimetallic alkoxides in different stoichiometric ratios in benzene medium have been exploited for synthesizing novel derivatives of the first type and also for throwing light on their structural features. A brief mention has been made of a new class of metalla-derivatives of β-diketones

Tris(trimethyl-stannyl,-germyl, -sijyl)borates

137-13

Organic compounds of gallium. III. Reactions of gallium alkoxides with acetylacetone, ethyl acetoacetate, methyl acetoacetate, and methyl salicylate

Derivatives of gallium of the type: Ga(i-C3H7O)3-xligx (x = 1, 2, or 3; and H lig = acetylacetone, methyl and ethyl acetoacetate, or methyl salicylate) have been synthesized by reacting gallium alkoxides with ligands in various molar ratios. The compounds are soluble in organic solvents and could be volatilized under reduced pressure. Their molecular weights have been determined ebullioscopically. The infrared spectra of some of the compounds have been studied

Application of Molecular Pathology Techniques to Understand Mechanisms of Disease in Smallmouth Bass

In the Chesapeake Bay drainage, smallmouth bass Micropterus dolomieu are used as an indicator species of estrogenic contaminant exposure and have been implicated in fish kills and disease since 2005. In the Potomac River drainage, adult smallmouth bass have experienced mortality and disease and males have a high prevalence of intersex (testicular oocytes). Conversely, in the Susquehanna River drainage mortalities and disease of young-of-the-year smallmouth bass (YOY SMB) have occurred and resulted in a population shift to older and larger fish. The exact cause of these events remains unknown; however, factors such as poor water quality, contaminants, pathogens and parasites, increased temperatures, and nutrification have been assessed. In order to address this issue, the USGS Fish Health Branch, Leetown Science Center, and West Virginia Cooperative Fish and Wildlife Research Unit have ongoing assessment and monitoring projects throughout the Chesapeake Bay watershed. The use of routine histopathology has provided guidance for further research with molecular endpoints that may help explain the mechanisms involved in disease in smallmouth bass. The purpose of this dissertation research was to: 1.) Identify the prevalence of coinfections and risk factors of disease in YOY SMB; 2.) Use in situ hybridization to identify coinfections of bacteria with the myxozoan parasite Myxobolus inornatus in YOY smallmouth bass; 3.) Model liver helminths and coinfections of YOY SMB with land use at two spatial scales; 4.) Develop laser capture microdissection methods for nucleic acid extractions which could be used with smallmouth bass tissues; and 5.) Utilize Next-Generation Sequencing to develop a partial testes transcriptome to identify molecular markers that may help explain intersex development in male smallmouth bass

Organometallic Oxime & Allied Derivatives: Part VI - Preparation, Reactions & Spectral Data of Some Bis(iminoxy)dimethylgermanes

874-87

Nuclear structure study around Z=28

Yrast levels of Ni, Cu and Zn isotopes for $40 \leq N \leq50$ have been described by state-of-the-art shell model calculations with three recently available interactions using $^{56}$Ni as a core in the $f_{5/2}pg_{9/2}$ model space. The results are unsatisfactory viz. large $E(2^+)$ for very neutron rich nuclei, small B(E2) values in comparison to experimental values. These results indicate an importance of inclusion of $\pi f_{7/2}$ and $\nu d_{5/2}$ orbitals in the model space to reproduce collectivity in this region.Comment: 12 pages, 14 figure

Double Isopropoxides of Hf(IV) with Alkaline Earth Metals

138-13

Reactions of Organotin Isopropoxides with Acetyl Pseudo halides

1099-110

Effect of Impurities on Thermal Decomposition of Calcium Carbonate

1016-101

Alkoxide Complexes of Some Tri- & Tetra-valent Metals: Part I- Conductometric & Potentiometric Studies on Some Aluminium Alkoxide Complexes in Non-aqueous Solvents

256-25