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Dissertations / Theses on the topic 'Methyl cyanide'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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1

Hajsaleh, Jamal Y. (Jamal Yousef). "An Experimental Study of Collision Broadening of some Excited Rotational States of the Bending Vibration of Methyl Cyanide." Thesis, University of North Texas, 1993. https://digital.library.unt.edu/ark:/67531/metadc278369/.

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A double modulation microwave spectrometer is used to evaluate the linewidth parameters for some excited rotational components in the bending vibration v_8 of 13CH3 13C 15N and 13CH3C15N isotopomers of methyl cyanide. The linewidth parameters for self-broadening of the ΔJ=2←1 rotational components for the ground v_8 , 1v_8, and the 2v_8 vibrations were determined over a pressure range of 1 to 13 mtorr and at a temperature of 300 K. The double modulation technique is used to explore the high eighth derivative of the line shape profile of the spectral line. This technique proved to give good sig

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2

Tam, Hungsze. "Microwave Spectra of ¹³C Isotopic Species of Methyl Cyanide in the Ground, v₈=1 and v₈=2 Vibrational States." Thesis, North Texas State University, 1988. https://digital.library.unt.edu/ark:/67531/metadc332039/.

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The problem of the quadrupole interaction occurring in a vibrating-rotating C₃v symmetric top molecule has been studied in detail. The quadrupole interaction has been treated as another perturbation term to a general frequency expression accounting for the vibrating-rotating interaction of the molecule so that a complete frequency formula is obtained for both interactions, and from which hyperfine spectral components are predicted and measured. The hyperfine transitions in the ground, and v₈=1 and v₈=2 excited vibrational states of the ¹³C isotopes of methyl cyanide have been investigated in t

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3

Andersson, Johan. "Odour Communication in Pieris Butterflies." Doctoral thesis, KTH, Chemistry, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3699.

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4

Davies, Gillian Mary. "Degradation of cyanide and metal cyanides using fungi." Thesis, University of Oxford, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393787.

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5

Al-Share, Mohammad A. (Mohammad Abdel). "Anomalous Behavior in the Rotational Spectra of the v₈=2 and the v₈=3 Vibrations for the ¹³C and ¹⁵N Tagged Isotopes of the CH₃CN Molecule in the Frequency Range 17-95 GHz." Thesis, University of North Texas, 1990. https://digital.library.unt.edu/ark:/67531/metadc330976/.

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The rotational microwave spectra of the three isotopes (^13CH_3^12C^15N, ^12CH_3^13C^15N, and ^13CH_3^13C^15N) of the methyl cyanide molecule in the v_8=3, v_8=2, v_7=1 and v_4=1 vibrational energy levels for the rotational components 1£J£5 (for a range of frequency 17-95 GHz.) were experimentally and theoretically examined. Rotational components in each vibration were measured to determine the mutual interactions in each vibration between any of the vibrational levels investigated. The method of isotopic substitution was employed for internal tuning of each vibrational level by single and do

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6

Murtazina, Rushana. "Pheromone production in the butterfly Pieris napi L." Doctoral thesis, KTH, Organisk kemi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-142551.

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Aphrodisiac and anti-aphrodisiac pheromone production and composition in the green-veined white butterfly Pieris napi L. were investigated. Aphrodisiac pheromone biosynthesis had different time constraints in butterflies from the diapausing and directly developing generations. Effects of stable isotope incorporation in adult butterfly pheromone, in the nectar and flower volatiles of host plants from labeled substrates were measured by solid phase microextraction and gas chromatography–mass spectrometry. A method to fertilize plants with stable isotopes was developed and found to be an effecti

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7

Le, Breton Michael Robert. "Airborne measurements of trace gases using a Chemical Ionisation Mass Spectrometer (CIMS) onboard the FAAM BAe-146 research aircraft." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/airborne-measurements-of-trace-gases-using-a-chemical-ionisation-mass-spectrometer-cims-onboard-the-faam-bae146-research-aircraft(84308915-6dae-46d8-acb6-f189683e3e6d).html.

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A chemical ionisation mass spectrometer (CIMS) was developed and utilised for measurements onboard the Facility for Atmospheric Airborne Measurements (FAAM) BAe-146 aircraft. The I- ionisation scheme was implemented to detect nitric acid (HNO3), formic acid (HC(O)OH), hydrogen cyanide (HCN) and dinitrogen pentoxide (N2O5) simultaneously at a sampling frequency of 1 Hz. Sensitivities ranged from 35±6 ion counts pptv-1 s-1 for HC(O)OH to 4±0.9 ion counts pptv-1 s-1 for HCN and limits of detection from 37 ppt for HNO3 and 5 ppt for HCN. Trace gas concentrations of species such as HC(O)OH are curr

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8

Kotdawala, Rasesh R. "Adsorption studies of hazardous air pollutants in microporous adsorbents using statistical mechanical and molecular simulation techniques." Worcester, Mass. : Worcester Polytechnic Institute, 2007. http://www.wpi.edu/Pubs/ETD/Available/etd-050407-112429/.

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Dissertation (Ph.D.) -- Worcester Polytechnic Institute.<br>Keywords: Activated carbons; Hydrogen cyanide; Methyl ethyl ketone; Adsorption; Mercury; Monte-Carlo; Solvents; Molecular simulations; Zeolites; Water; Methanol; Nanopores. Includes bibliographical references (leaves 147-150).

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9

Wood, Andrew John. "Mixed-metal complexes incorporating redox-active cyanomanganese ligands." Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311404.

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10

Cairns, Andrew B. "Mechanical and configurational degeneracy in transition metal cyanide materials." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:49948a4e-4fde-403b-aef8-301227893856.

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Molecular framework materials - materials constructed like atomic scaffolding where anionic polyatomic linkers join cationic metal nodes - have great currency in contemporary functional material design. In this thesis the structures and properties of transition metal cyanides are investigated, focusing on the impact of mechanical and configurational degeneracy. These related phenomena give rise to materials with unusual and extreme negative mechanical responses on the one hand, and exotic structural states on the other. The mechanical response of primary interest here is negative linear compre

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11

Williamson, Courtney Meghann. "Asymmetric catalysis of cyanide addition reactions using metal(salen) complexes." Thesis, University of Newcastle Upon Tyne, 2011. http://hdl.handle.net/10443/1168.

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Chiral cyanohydrins and α-aminonitriles are versatile intermediates and are of great importance to the pharmaceutical industry due to the ability to convert them into useful chemicals via simple chemical transformations. Chiral cyanohydrins and α-aminonitriles can be obtained from asymmetric cyanohydrin synthesis and asymmetric Strecker reactions respectively. In this project, bimetallic aluminium(salen) complex 1 was studied extensively and was shown to be very active in cyanohydrin synthesis using trimethylsilylcyanide (TMSCN), giving the cyanohydrin trimethylsilyl ether derived from benzald

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12

Barclay, Michelle. "Biodegradation of cyanide and its metal complexes by Fusarium solani." Thesis, University of Kent, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245625.

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13

Schelter, Eric John. "Cyanide clusters of ReII with 3d metal ions and their magnetic properties: incorporating anisotropic ions into metal-cyanide clusters with high spin magnetic ground states." Diss., Texas A&M University, 2003. http://hdl.handle.net/1969.1/2205.

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Clusters of metal ions that possess large numbers of magnetically coupled unpaired electrons have attracted much interest in recent years due to their fascinating magnetic behavior. With an appreciable component of magnetic anisotropy, these large-spin paramagnetic molecules can exhibit an energy barrier to inversion of their magnetic dipole, leading to spontaneous magnetization and magnetic hysteresis below a critical temperature. Since this behavior is a property of an individual clusters rather than a collection of molecules, this phenomenon has been dubbed ??Single Molecule Magnetism??.

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14

Marelli, Elena. "New chemistry and physics from transition-metal cyanides." Thesis, University of Reading, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.627647.

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15

Savage, Chandra Shannon. "Ions, isotopes, and metal cyanides: Observational and laboratory studies." Diss., The University of Arizona, 2004. http://hdl.handle.net/10150/290082.

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Chemistry in the interstellar medium is very different from the processes which take place in terrestrial settings. Environments such as circumstellar envelopes, molecular clouds, and comets contain diverse and complex chemical networks. The low temperatures (10-50 K) and densities (1-10⁶ cm⁻³) allow normally unstable molecules to exist in significant quantities. At these temperatures, the rotational energy levels of molecules are populated, and thus these species can be detected by millimeter-wave radio astronomy. The detection and quantification of interstellar molecules, including metal cya

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16

Strangfeld, Vinzenz Klaus. "The recovery of metal cyanides by ion exchange resins." Thesis, Cape Technikon, 2000. http://hdl.handle.net/20.500.11838/882.

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Thesis (MTech (Chemical Engineering))--Cape Technikon, Cape Town, 2000<br>Cyanide is used extensively in the mining industry to leach gold and silver from their ores. Cyanide, in the form of sodium or potassium cyanide, is added in excess to that required theoretically due to equilibrium and kinetic considerations in the leaching step. This results in free cyanide and various other cyanide complexes reporting to the effluent streams of these operations In this study the removal of these species from solution by means of ion exchange resins was investigated Equilibrium conditions, kinetic

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17

Bartlett, Ian Mark. "The redox activiation of alkyne ligands in group 6 transition metal complexes." Thesis, University of Bristol, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390376.

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18

Nesbitt, Allan Bernard. "Recovery of metal cyanides using a fluidized bed of resin." Thesis, Cape Technikon, 1996. http://hdl.handle.net/20.500.11838/906.

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Thesis (MTech(Chemical engineering))--Cape Technikon, Cape Town,1996<br>Metal cyanide complexes are a toxic pollutant in waslewater originating from various industrial and mining activities. The removal/retrieval ofcyanide and metal cyanide complexes has been studiedby researches for many years, leading to the establishment of a variety of patents. The mechanisms used by these patents vary from purely chemical techniques to those using ion exchange Iesins. In this thesis, ,the feasIbility ofthe recovery ofmetal cyanide complexes by using a strong base macroreticular resin, in a fluidized

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19

Eversfield, Sharon Gail. "An investigation of some disordered transition metal sulfides and cyanides." Thesis, University of Reading, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.288770.

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20

Barrezueta-Delgado, Erika, Naysha Blas-Trujillo, Yaneth Vasquez-Olivera, Carlos Raymundo, Nestor Mamani-Macedo, and Javier M. Moguerza. "A Cyanide Tailings Management Method Using Pseudomonas Fluorescens to Improve Conventional Treatments for Progressive Closure at Small Gold Mines." Springer, 2020. http://hdl.handle.net/10757/656170.

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El texto completo de este trabajo no está disponible en el Repositorio Académico UPC por restricciones de la casa editorial donde ha sido publicado.<br>Based on the review of different research studies, we could assess that, due to their unique biological features, microbes, specifically bacteria, could be used to repair damaged soils with heavy metal and toxic compound contents. Furthermore, these microorganisms are metabolically capable to oxidize cyanide and its by-products to generate less-toxic compounds at the end of the process. This research proposal seeks to improve conventional mine

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21

Wilson, Duane C. "Synthesis, Structure, And Characterization Of Rare Earth(Iii) Transition Metal Cyanides; Lanthanide(Ii) And Metallocene Amidotrihydroborates." Columbus, Ohio : Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1230880974.

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22

Pohl, Alexander. "Solid-state architecture : from simple metal cyanides to open-framework materials." Thesis, University of Reading, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.500552.

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23

Wingstrand, Erica. "New Methods for Chiral Cyanohydrin Synthesis." Doctoral thesis, KTH, Kemi, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10205.

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This thesis deals with method development in asymmetric catalysis and specifically syntheses of enantioenriched O-functionalized cyanohydrins. The first part describes the development of a method for the synthesis of O‑alkoxycarbonylated and O-acylated cyanohydrins. Ethyl cyanoformate and acyl cyanides were added to aldehydes in a reaction catalyzed by a chiral dimeric Ti-salen complex together with a tertiary amine. High yields and enantioselectivities were in most cases obtained. Mechanistic studies were performed and a reaction mechanism was proposed. The second part describes a method in

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24

Koumousi, Evangelia S. "Synthesis and characterization of dinuclear {Fe(μ-CN)Co} complexes exhibiting metal-to-metal electron transfer properties". Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0306/document.

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Cette thèse porte sur la synthèse de nouveaux complexes binucléaires à ponts cyanures de type {Fe(μ-CN)Co}, qui reproduisent au sein d'une seule molécule les propriétés originales du réseau de coordination d'analogue de bleu de Prusse AxCo[Fe(CN)6]y•nH2O (A=ions alcalins), i.e. un transfert d'électron intramoléculaire thermo- et photo-induit à l'état solide. Au sein de ce travail, nous nous sommes intéressés à l'étude des propriétés physiques des paires moléculaires Fe/Co, avec l’objectif de comprendre les mécanismes du phénomène de transfert d'électrons. Le chapitre I contient les exemples le

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25

Sieh, Raymond. "Self-lubricating non-cyanide silver-polytetrafluoroethylene composite coating for threaded compression fittings." Thesis, University of Plymouth, 2017. http://hdl.handle.net/10026.1/9703.

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Silver is a precious metal that has traditionally been used for jewellery and money. It also possesses desirable properties such as being corrosion resistant and having good electrical conductivity, resulting in its use for industrial applications. Furthermore, it is also recognised for its tribological properties in non-cost prohibitive applications. Silver can be used as a surface coating and can be deposited using an electroplating process. The utilisation of silver as a surface coating is advantageous and sustainable, as the substrate material properties are enhanced while usage of silver

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26

Sturgeon, Matthew Robert. "Cyanide Bridged Multimetallics Derived From Extended Arrays of Alkaline Earth, Rare Earth, and Transition Metals: A Study From Complexes To Catalysts." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1250009077.

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27

Knoeppel, David W. "Rare earths and transition metal cyanides: building blocks to solid state polymers /." The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487868114110388.

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28

Van, Wyk Andries Pieter. "Flowsheet development and comparison for the recovery of precious metals from cyanide leach solutions." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86302.

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Thesis (MEng)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: The Platreef ore deposit, situated in the Bushveld Igneous Complex, is one of the world’s largest platinum group metal (PGM) resources. The mineralogy of this resource is, however, unique as it consists of complex PGM mineralization with mainly copper and nickel, at very low PGM grades. The PGMs are mainly present in the ore as slow floating refractory minerals resulting in marginal process economics when processing via traditional mill-float-smelt processes. A new process is currently being investigated to extract PGMs from l

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29

Du, Bin. "Syntheses and structure characterizations of multi-dimensional cyanide bridged lanthanide-transition metal arrays : studies on their magnetic properties /." The Ohio State University, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488195154359587.

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30

Eseonu, Dorothy N. "Reactions of Substituted Pyridinium Salts with Cyanide; Formation and Metal Complexes of 2,2'bis (hydroxymethyl)-4,-4'bipyridine." VCU Scholars Compass, 1989. http://scholarscompass.vcu.edu/etd/4549.

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The unique combination of properties of bipyridinium salts and their use in biological systems, chemical reactions, and as herbicides in agriculture have made them a discovery of major international importance. The controversy about the position of attack of the cyanide ion on the pyridine ring and the discovery of the formation of unsubstituted bipyridinium salts from the reaction of pyridinium salt with cyanide ion opened a new area of research. The current work involved a study of reactions of substituted pyridinium salts with cyanide ion. The substituted pyridinium salts were prepared by t

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31

Ma, Guibin. "On Thallium (III) and binuclear platinum-thallium complexes with N-donor ligands in solution and in solid." Doctoral thesis, Stockholm, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3129.

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32

Simpson, Naomi Rosalind Mary. "The supramolecular photochemistry of precious metal #alpha#,#alpha#'-diimine complexes." Thesis, University of Bristol, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368205.

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33

Nagy, Péter. "Formation and Decomposition of Platinum–Thallium Bond, Kinetics and Mechanism. Structural Characterization of Some Metal Cyanides in the Solid State." Doctoral thesis, KTH, Chemistry, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3803.

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<p>The kinetic and mechanistic features of a new series ofplatinum-thallium cyano compounds containing a direct andunsupported by ligands metal-metal bond have been studied insolution, using standard mixandmeasurespectrophotometric technique and stoppedflow method.These reactions are interpreted as oxidative addition of the cspecies to the square planar Pt(CN)<sub>4</sub><sup>2-</sup>complex. Each of these processes was found to befirst-order in Pt(CN)<sub>4</sub><sup>2-</sup>, the corresponding TI<sup>III</sup>complex and a cyanide ion donating species whichacts as a catalyst. Both di- and

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34

Rezvani, Alireza 1958 Carleton University Dissertation Chemistry. "Inner and outer sphere perturbation of the Ru(III)-cyanamide bond and the consequences to metal-metal coupling." Ottawa.:, 1995.

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35

Bhowmick, Indrani. "Synthèse et caractérisation de matériaux moléculaires magnétiques incorporant des ions métalliques 3d et 4d/5d connectés par des ponts cyanures." Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR14567/document.

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Dans cette thèse, nous avons synthétisé de nouveaux matériaux moléculaires hétérométalliques pontés par des groupements cyanures en utilisant la chimie de coordination donneur-accepteur. Les précurseurs moléculaires basés sur un ion métallique 3d (MnII/III, FeII, NiII, CuII) agissent en tant qu’unités acceptrices, alors que les précurseurs 4d (RuIII) et 5d (ReIV) de type trans-cyanido ont été utilisés comme groupements donneurs. Le chapitre I présente une approche théorique avec quelques exemples des matériaux magnétiques de basse dimensionnalité : molécule et chaîne aimant qui illustrent le r

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36

Maliarik, Mikhail. "Compounds with Non-Buttressed Metal-Metal Bond between Platinum and Thallium. Model Systems for Photoinduced Two-Electron-Transfer." Doctoral thesis, Stockholm : Tekniska högsk, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3174.

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Calancea, Sergiu. "Synthèse et caractérisations de nouveaux complexes binucléaires à transfert d’électron de type {Fe(µ-CN)M} (M = Fe, Mn, Co)." Thesis, Bordeaux 1, 2013. http://www.theses.fr/2013BOR14802/document.

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L’une des grandes directions de recherche dans la chimie moderne est la synthèse et l’étude denouveaux composés « commutables » capables de modifier leurs propriétés sous l’effet de stimuli extérieurs (température, lumière, champ magnétique ou électrique…). Ces systèmes peuvent stocker une information à l’échelle moléculaire. Dans ce contexte, parmi les systèmes les plus étudiés en chimie de coordination figurent les réseaux et les analogues moléculaires du bleu de Prusse. Cette thèse est dédiée à la synthèse et aux caractérisations de nouveaux analogues moléculaires du bleu de Prusse à transf

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38

Goberna, Ferrón Sara. "Novel molecular catalysts for water oxidation: towards artificial photosynthesis." Doctoral thesis, Universitat Rovira i Virgili, 2013. http://hdl.handle.net/10803/129180.

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L’objectiud’aquesta tesi és el desenvolupamenticaracteritzacióde nouscatalitzadors per a l’oxidació d’aigua a partir complexos metàl•lics, especialment amb metalls de la primera sèrie de transició. En el segon capítol d’aquesta tesi s’explora la activitat catalítica homogènia per a l’oxidació d’aigua d’un compost de ruteni d’enllaç metall-metall, [Ru2(μ-O2CCH3)4]. Aquest catalitzador esta estabilitzat perlligands disponibles i de baix cost, per tant no requereix el disseny delligands orgànics. El tercer capítol d’aquesta tesi estudia l’activitatcatalítica d’un nou compost de cobalt basat en

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Quinio, Pauline Alice [Verfasser], and Paul [Akademischer Betreuer] Knochel. "New preparation of polysubstituted allenes, benzylic manganese chlorides and protected aldol products : transition metal free benzylation of unsaturated cyanides / Pauline Alice Quinio. Betreuer: Paul Knochel." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2015. http://d-nb.info/1106854659/34.

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Arayamparambil, Jeethu Jiju. "Metal carbodiimides and cyanamides, a new family of electrode materials for Li-ion batteries." Thesis, Montpellier, 2019. http://www.theses.fr/2019MONTS066.

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Les batteries Li-ion constituent actuellement la technologie de choix pour tous les équipements portables, les moyens de transports électriques et le stockage stationnaire des énergies renouvelables. Actuellement, le graphite est incontestablement le matériau d'anode le plus utilisé pour les batteries Li-ion en raison de ses excellentes propriétés telles que sa durabilité, son abondance et son faible coût. Cependant, sa faible densité d'énergie est son talon d'Achille. En plus, le graphite présente certains problèmes de sécurité, en particulier à des puissances élevées. En conséquence, d’autre

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Parrish, Douglas K. "Application of solid phase microextraction with gas chromatography-mass spectrometry as a rapid, reliable, and safe method for field sampling and analysis of chemical warfare agent precursors /." Download the dissertation in PDF, 2005. http://www.lrc.usuhs.mil/dissertations/pdf/Parrish2005.pdf.

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42

Polteau, Baptiste. "Étude de semi-conducteurs de type p nanostructurés à base de métaux de transition pour une application en DSSC-p." Thesis, Rennes 1, 2016. http://www.theses.fr/2016REN1S046/document.

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Dans le but d'améliorer le rendement des cellules à colorant de type p (DSSC-p), ces travaux s'attachent à la synthèse et la caractérisation de matériaux semi-conducteurs de type p (SCs-p) sous forme de nanoparticules. En ce sens, des SCs-p répondant à un cahier des charges (bande de valence basse en énergie, grande surface spécifique, bon conducteur et bonne transparence) ont été étudiés. Dans ce cadre, une stratégie a été développée pour améliorer les propriétés de NiO (l'actuel matériau de référence) en optimisant sa nanostructuration, sa forte non-stœchiométrie en nickel et par son dopage

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Mullins, Barbara A. "Photocatalytic destruction of some transition metal cyanide complexes." Thesis, 1996. http://hdl.handle.net/1911/14046.

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The oxidation of several transition metal cyanides by illuminated colloidal titanium dioxide has been studied with attention to end products and rate of reaction. Tetracyanozinc, a weak complex, and ferricyanide, a stable complex were the primary focus. The rate of complex dissociation of ferricyanide was found to depend on pH. The rate of oxidation of cyanide was found to be the same both complexed and as alkali cyanide. Although the precipitation of metal oxide onto the catalyst occurred, there was no evidence that it interfered in the oxidation of cyanide.

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WANG, ZHI-DA, and 王志達. "The study on cyanide destruction by electrochemical method (direct and indirect electrochemical oxidation)." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/65420896110051061643.

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Pasaribu-Guzina, Stella Sherley Miryam. "Assessment of an environmentally-friendly method of ornamental fishing associated with revenues of fishers in Tejakula sub-district, Buleleng region, Bali, Indonesia." 2013. http://hdl.handle.net/10170/641.

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This study examined the impact of reformed fishing and reef management practices in a community-based marine ornamental fishery in Tejakula sub-district, Bali, Indonesia, on the development of effective community-based natural resource management. With the absence of cyanide fishing for one decade, the coral reef condition has improved from 26% of area coverage to 53%. T-test result shows that there is no significant difference in individual fishing revenue and a considerable decrease in total fishery revenue. The fishers have benefited in resource conservation and a 73% decrease in fishing co

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Avendano, Carolina. "Cyanide Bridged Molecular Magnetic Materials with Anisotropic Transition Metal Ions: Investigation of Bistable Magnetic Phenomena." Thesis, 2010. http://hdl.handle.net/1969.1/ETD-TAMU-2010-05-7858.

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The work presented herein focuses on the synthesis and characterization of new cyanide bridged molecular magnetic materials that form discrete molecules as well as three dimensional networks. This research is inspired by the recognition that the Prussian blue (PB) family exhibits a wide range of interesting magnetic properties such as photomagnetism, spin crossover, and high TC magnets owing to the presence of the cyanide bridge that promotes magnetic communication between adjacent metal spins. An underexplored facet of this research is the systematic development of the topic with anisotropic

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Modisette, Jason Perry. "A theoretical study of cyanide on alkali-halide and alkali-metal surfaces using density functional theory." Thesis, 1995. http://hdl.handle.net/1911/13978.

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Many interesting physical phenomena have been observed in electron-stimulated desorption studies of the cyanide molecule on alkali halide and alkali metal surfaces. We have performed a theoretical investigation of the nature of the cyanide-surface bond and of the desorption process using an ab initio density functional theoretic method of calculating electronic structure in the local density and Born-Oppenheimer approximations. We compare our results with experiment, and offer an explanation for an anomalous non-Boltzmann, temperature-independent rotational distribution experimentally observed

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Aguiar, Pedro Miguel. "Multinuclear magnetic resonance investigations of structure and order in borates and metal cyanides." 2007. http://hdl.handle.net/1993/2823.

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The local information provided by nuclear magnetic resonance (NMR) makes it an ideal method for the structural investigations of materials lacking extended long-range ordering. This work focuses on investigations of two types of materials possessing very different types of disorder. The first section involves investigations of alkali borate glasses and the application of solid-state NMR techniques to probe short- and medium-range ordering in such glasses. Differences between the various alkali borates over a wide compositional range are probed using one and two-dimensional techniques. The us

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Karadas, Ferdi. "Preparation and Characterization of Cyanide-Bridged Molecular Clusters and Extended Networks Using the Building-Block Approach." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-12-7622.

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The cyanide ligand has frequently been used to prepare clusters with novel magnetic properties due to its ability to provide an efficient pathway for superexchange between metal centers that are bound in an end-to-end fashion. One of the common synthetic approaches in this chemistry is to design suitable cyanide containing precursors and then to react such building blocks with metal complexes consisting of accessible sites. The triphos ligand (triphos: 1,1,1-tris(diphenylphosphinomethyl)ethane) has been employed in this vein to prepare metal complexes, one of which is a five coordinate paramag

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Wu, Yu-Ching, and 吳俞慶. "Selective Detection of Biologically Important Compounds at Metal Cyanide Complexes and Silicomolybdate-Doped-PLL-GA Film Modified Electrodes." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/25dw6a.

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碩士<br>國立臺北科技大學<br>化學工程研究所<br>96<br>Part I：The present work describes oxidation of ascorbic acid (AA) at octacyanomolybdate-doped-glutaraldehyde-cross-linked poly-L-lysine ( PLL-GA-Mo(CN)84- ) film modified glassy carbon electrode in 0.1 M H2SO4. The modified electrode has been successfully prepared by means of electrostatically trapping the Mo(CN)84- mediator in the cationic film of glutaraldehyde-cross-linked poly-L-lysine. The dependence of peak current of modified electrode in pure supporting indicates that the charge transfer process was surface confined at low scan rates ( 5 to 200 mV s-

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