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Dissertations / Theses on the topic 'Inorganic nitrogen'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Harbin, Anne-Marie. "Inorganic nitrogen nutrients in natural waters." Thesis, University of Liverpool, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240756.

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2

Dixon, G. K. "The inorganic nitrogen metabolism of marine dinoflagellates." Thesis, Swansea University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636452.

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Nitrogen-replete cells of <i>Amphidinium carterae</i> took up ammonium in the light at a rate 5 - 6 times that of nitrate even though exponential growth rates were similar on these two N-sources. <i>A. carterae</i> exhibited a capability for enhanced initial ammonium uptake, particularly when deprived of nitrogen. Enhanced initial rates of ammonium uptake were also observed in a natural population of <i>Gyrodinium aureolum</i>. Initially ammonium accumulated within the cells of <i>A. carterae</i> but was assimilated into organic-N within a matter of hours; increases in total cellular-N, total

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3

Saunders, Eleanor Margaret. "The effect of mineral nitrogen on ectomycorrhizas with special reference to nitrogen deposition." Thesis, University of Sheffield, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299547.

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4

Wheildon, Andrew R. "Novel nitrogen chemistry." Thesis, University of Nottingham, 1999. http://eprints.nottingham.ac.uk/13326/.

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Chapter One contains a brief overview of zeolites, their structure, uses and synthesis. Chapter Two relates to the attempted synthesis of quinuclidines via a novel 6-endo-trig radical cyclisation. Chapter Three contains a review of the 'Zip reaction' and the attempted synthesis of triazacyclopentadecane derivatives. Chapter Four relates to the synthesis of pyrrolidines via retro-Cope cyclisation methodology. Reviews of the Cope and retro-Cope reactions, nitrone synthesis and nucleophilic addition of carbon nucleophiles to nitrones are included. The synthetic work is split into three sections r

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5

Benítez, Juan Manuel González. "Quantification of atmospheric water soluble inorganic and organic nitrogen." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4635.

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The key aims of this project were: (i) investigation of atmospheric nitrogen deposition, focused on discrimination between bulk, wet and dry deposition, and between particulate matter and gas phase, (ii) accurate quantification of the contributions of dissolved organic and inorganic nitrogen to each type of deposition, and (iii) exploration of the origin and potential sources of atmospheric water soluble organic nitrogen (WSON). This project was particularly focused on the WSON fraction because, despite it being a potentially important source of bioavailable reactive nitrogen, a number of ques

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6

O'Neil, Paul Andrew. "Structural studies of some S-block nitrogen complexes." Thesis, University of Newcastle Upon Tyne, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335949.

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7

Davies, Craig Joseph. "Characterisation of rhodium complexes with nitrogen containing ligands." Thesis, University of Liverpool, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337145.

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8

Griffith, G. A. "Transition metal fluoride derivatives with nitrogen-containing ligands." Thesis, University of Leicester, 1988. http://hdl.handle.net/2381/33705.

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The reaction between WF6 and C6F5NH2 is found to proceed via iminolysis. 19F NMR analysis of acetonitrile (MeCN) solutions show the product to be a mixture containing [C6F5NH3]+[WF5(NC6F5)]-, [C6F5NH3]+[W2F9(NC6F5)2]-, [C6F5NH3]+F- and the unique mixed imido-, oxo-species [O=WF4-F-WF4(NC6F5)] - formed from traces of oxyfluoride impurities. The 19F nmr spectrum of a trifluoroacetic acid (TFA) solution showed the presence of the dimeric anion salt and fluorination products. An X-ray crystallographic study of a single crystal of [C6F5NH3]+[W2F9(NC6F5)2]-, grown from TFA, revealed the compound to

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9

Vargas, Gregory Wilda Ruhlandt-Senge Karin. "Nitrogen-based alkaline earth metal compounds syntheses, structures and applications /." Related electronic resource: Current Research at SU : database of SU dissertations, recent titles available full text, 2004. http://wwwlib.umi.com/cr/syr/main.

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10

Roberto, Dominique Marie. "Metal-catalyzed reactions of heterocyclic nitrogen compounds and related systems." Thesis, University of Ottawa (Canada), 1989. http://hdl.handle.net/10393/5773.

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11

Huestis, Malcolm P. "Transition Metal-Catalyzed Preparation and Functionalization of Nitrogen-Containing Heterocycles." Thesis, University of Ottawa (Canada), 2009. http://hdl.handle.net/10393/28662.

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The formation of carbon-carbon bonds is the single most fundamentally important operation in synthetic organic chemistry. Arguably, the aldol and Diels-Alder reactions stand as the most significant advances in forging linkages between carbons of an sp3-hybridized nature. Beginning in the early 1970s, seminal advances were made with respect to formation of carbon-carbon bonds between sp2 centers. These transformations, termed "cross-coupling" reactions, have undoubtedly changed the way synthetic organic chemistry is carried out, rendering the synthesis of carbon-carbon sp2 linkages a relatively

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12

Dasgupta, Mohua. "Synthetic routes to phosphorus (III)- and nitrogen-containing dendritic polymers." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=31216.

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The incorporation of phosphine or amine structural units into dendritic polymers offer significant potential in building macromolecular species with desired properties for heterogenizing homogeneous catalysis. To this end, synthetic methodologies based on the chemistry of acid-base hydrolysis of aminosilanes with molecules possessing hydroxyl end groups, and that of phosphorus halides/amides with alkynyl/alcohol monomers were explored as approaches to construct phosphorus(III)- and nitrogen-containing dendritic polymers. Attempted implementation of a three-step, divergent synthetic methodology

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13

Chua, Zhijie. "Coordination chemistry of high oxidation nitrogen containing amides and heterocycles." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=119473.

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The catalytic reduction of nitrous oxide (N2O) to dinitrogen (N2) by nitrous oxide reductase (N2OR) is poorly understood. The N2O molecule is a poor ligand with relatively sparse coordination chemistry. We proposed the synthesis of probable nitrous oxide precursors which can be coordinated to transition metals prior to conversion to nitrous oxide. Nitramide, H2NNO2, 2-1, and the related nitrogen amide acids N-nitroamide 2-2, 2-3; N-nitrocarbamate 2-4, 2-5, N-nitrosocarbamate 2-6, 2-7; N-nitrosulfonamide 2-8 have been synthesized as possible nitrous oxide precursors for coordination studies wit

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14

Elder, Susan Margaret. "The coordination chemistry of some polydentate nitrogen-donor ligands." Thesis, University of Cambridge, 1990. https://www.repository.cam.ac.uk/handle/1810/272957.

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15

Palmer, Catherine Ann. "The coordination chemistry of some nitrogen-sulphur donor ligands." Thesis, University of Cambridge, 1990. https://www.repository.cam.ac.uk/handle/1810/272977.

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16

Reay, David S. "Temperature dependence of inorganic nitrogen utilisation by bacteria and microalgae." Thesis, University of Essex, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265190.

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17

Van, Wijk Kim. "The effect of organic carbon and nitrogen additions on inorganic nitrogen uptake by phytoplankton and bacteria." Master's thesis, University of Cape Town, 1991. http://hdl.handle.net/11427/18342.

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Bibliography: pages 76-89.<br>This study examines the effects of enrichment with organic carbon and nitrogen on inorganic nitrogen partitioning between phyto- and bacterio- plankton. Strongly preferential uptake of ammonium over nitrate was observed by both the phytoplanktonic and bacterial fractions, with RPINH4 values typically between 1 and 5. The bacterial fraction ( <0.8μm) was found to be responsible for as much as 48-75% of community uptake of ammonium; while the netplanktonic fraction was observed to take up approximately 50% of intact community uptake of nitrate. The addition of amino

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18

Holland, Stephanie. "Synthesis, characterisation and transition metal complexes of nitrogen-containing ligands." Thesis, Imperial College London, 2000. http://hdl.handle.net/10044/1/8162.

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19

Stotereau, Peter James. "Complexation of transition metal ions with sulfur-nitrogen donor ligands." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292922.

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20

Togrou, Maria. "Iron, titanium and vanadium coordination chemistry related to nitrogen fixation." Thesis, University of Sussex, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364587.

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21

Diego, Derrick A. "Synthesis and characterization of iron dinitrosyl complexes with nitrogen containing chelating ligands." Thesis, California State University, Long Beach, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1527697.

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<p> Three new [Fe-N0]<sup>10</sup> complexes coordinated with nitrogen chelating ligands have been synthesized and characterized. The new synthesized complexes are dinitrosyl(2-2'-biquinoline )iron(O), dinitrosyl(2,2' -bipyridine 4,4' -dimethyl)iron(O), and dinitrosy 1(2,2'-bipyridine 4,4' -diphenyl)iron(O). Each complex is synthesized utilizing a common starting material, dinitrosyldicarbonyliron(O), (Fe(N0)<sub>2</sub>(C0)<sub>2</sub>). Reaction conditions are in an inert atmosphere at ambient temperature and pressure.</p><p> The characterizations of these molecules are done with ultraviol

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22

Crossland, Justin L. 1982. "Iron coordination chemistry of nitrogen, diazene, hydrazin, and ammonia : Investigating the mechanism of nitrogen reduction to ammonia." Thesis, University of Oregon, 2009. http://hdl.handle.net/1794/10336.

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xvi, 233 p. : ill. (some col.) A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number.<br>The coordination chemistry of iron with N 2 is becoming increasingly important as chemists try to find alternative routes to the production of ammonia. Current biological and industrial processes use iron to catalyze the formation of ammonia from N 2 ; however, huge amounts of energy are required for this conversion. Understanding how dinitrogen and other intermediates of dinitrogen reduction interact with iron could lead to energy

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23

De, Souza Jaisa Soares. "Aspects of vanadium, iron and titanium chemistry related to nitrogen fixation." Thesis, University of Sussex, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283147.

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This project concerned the basic chemistry of VD, Vm and FeD (iJ because of interest in the role of vanadium and iron in the electron-transfer processes catalysed by the nitrogenases, and (iiJ to try to rationalise the fragmented data available on the chemistry of low-oxidation-state vanadium and its reactions with iron(II) compounds. In order to increase the range of FeD materials available for reaction with VD, the dinuclear complex [{FeCI(tmeda)h{Jt-Cl)2] and the mononuclear [FeCI2(tmeda)2] (tmeda = N,N,N',N'-tetramethylethylenediamine) were synthesised and characterised by chemical and phy

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24

Melkamu, Teshome. "Intercropping in corn : soil physical quality and soil inorganic nitrogen levels." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1996. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ44098.pdf.

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25

Young, Neil Graham Miller. "Inorganic nitrogen leaching and agronomic response of St Augustinegrass to nitrogen fertilization strategies under residential lawn conditions." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0041328.

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26

Öhlund, Jonas. "Organic and inorganic nitrogen sources for conifer seedlings : abundance, uptake and growth /." Umeå : Dept. of Forest Genetics and Plant Physiology, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/s312-ab.html.

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27

Holt, David Gary Lawton. "The preparation, reactivity and structures of low oxidation state vanadium complexes in relation to nitrogen fixation." Thesis, University of Surrey, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236926.

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28

Spencer, Robert G. M. "Biogeochemistry of dissolved organic matter and inorganic nitrogen in two N.E. UK estuaries." Thesis, University of Newcastle Upon Tyne, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.423588.

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29

Silbiger, Nyssa Joy Lindquist Niels Lyle. "Impacts of sponge produced dissolved inorganic nitrogen on Caribbean coral reef seaweed communities." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2009. http://dc.lib.unc.edu/u?/etd,2624.

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Thesis (M.S.)--University of North Carolina at Chapel Hill, 2009.<br>Title from electronic title page (viewed Oct. 5, 2009). "... in partial fulfillment of the requirements for the degree of Master of Science in the Department of Marine Sciences." Discipline: Marine Sciences; Department/School: Marine Sciences.

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30

Edwards, V. R. "The yield of marine phytoplanckton chlorophyll from dissolved inorganic nitrogen under eutrophic conditions." Thesis, Edinburgh Napier University, 2001. http://researchrepository.napier.ac.uk/Output/1052660.

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During 1999 ex-situ microcosm experiments were carried out at Dunstaffnage Marine Laboratory, Oban using natural assemblages of microplankton (< 200 m in size) in a series of enrichment experiments using continuous culture techniques to determine q - the yield of chlorophyll from dissolved available inorganic nitrogen (DAH\I), during and after an enrichment event. The experiments lasted between 11 and 14 days and produced a time series of q after an enrichment of either 12 M ammonium or 12 M nitrate. Allother essential nutrients, vitamins and trace metals were added in excess so that only DAIN

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31

Wilson, J. M. "Natural abundance of '1'5N in soils : temporal and spatial variation in organic and inorganic N pools." Thesis, University of Newcastle Upon Tyne, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265428.

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32

Viktor, Aleysia. "Physiological and metabolic factors determining nitrogen use efficiency of tomato seedlings grown with elevated dissolved inorganic carbon and different nitrogen sources." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52999.

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Thesis (MSc)--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: The aim of this study was to determine (l) the influence of elevated dissolved inorganic carbon (DIC) on the nitrogen use efficiencies (NUE) of tomato seedlings grown with different nitrogen sources, (2) how changes in the regulation and activities of nitrate reductase (NR), phosphoenolpyruvate carboxylase (PEPc), carbonic anhydrase (CA) and subsequent changes in metabolites would account for observed changes in NUE, and (3) to what extent elevated DIC contributed to the carbon budget of plants grown with different nitr

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33

Deininger, Anne. "Effects of inorganic nitrogen and organic carbon on pelagic food webs in boreal lakes." Doctoral thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-130340.

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Anthropogenic activities are increasing inorganic nitrogen (N) loadings to lakes in the northern hemisphere. In many boreal lakes phytoplankton are N limited, wherefore enhanced N input may affect the productivity of pelagic food webs. Simultaneously, global change causes increased inflows of terrestrial dissolved organic carbon (DOC) to boreal lakes. Between clear and humic lakes, whole lake primary and consumer production naturally differs. However, research is inconclusive as to what controls pelagic production in these lakes. Further, it is unclear how DOC affects the response of the pelag

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34

Cai, Yanbing. "Synthesis and Characterization of Nitrogen-rich Calcium α-Sialon Ceramics". Doctoral thesis, Stockholms universitet, Institutionen för fysikalisk kemi, oorganisk kemi och strukturkemi, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-8568.

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In this thesis, a synthesis concept has been developed, which uses nitrogen-rich liquid phases for sintering of Ca-α-sialon ceramics. First, keeping the Si/Al ratios constant, the effects of N/O ratio on the properties and microstructure were investigated through a liquid phase sintering process. Second, nitrogen-rich Ca-α-sialon ceramics, with nominal compositions: CaxSi12-2xAl2xN16, x < 2.0, was synthesized and characterized. Third, mechanical and thermal properties of nitrogen-rich Ca-α-sialons were investigated in terms of high temperature deformation resistance,reaction mechanism, phas

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35

Gokmen, Mustafa. "Dissolved Inorganic Nitrogen Removal Efficiency Of The Reed Beds Surrounding Lake Mogan Using Modeling Approaches." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12604800/index.pdf.

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In this study, yearly and seasonally nitrogen retention dynamics of reed beds surrounding Lake Mogan were investigated by comparing surface aerial nitrogen load and in-lake concentrations. The analyses were performed separately for nitrate-N, ammonium-N and dissolved inorganic nitrogen (sum of nitrate-N and ammonium-N) to reveal differences between them in terms of retention dynamics. 1998, 1999 and 2002 were relatively high-load years in terms of DIN-input to reed beds surrounding Lake Mogan, compared with the DIN-loadings of 1997, 2000 and 2001. A significant difference was observed between

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36

Song, Weining. "Some aspects of the utilization of inorganic nitrogen compounds and carbon compounds by "Nitrobacter hamburgensis" /." Title page, contents and summary only, 1987. http://web4.library.adelaide.edu.au/theses/09A/09as724.pdf.

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37

English, Jason B. "Electronic structure investigations of multiple bonding between atoms: From metal-nitrogen triple bonds to metal-metal triple and quadruple bonds." Diss., The University of Arizona, 2002. http://hdl.handle.net/10150/280021.

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The nature of multiple bonding involving transition metal atoms has been explored via photoelectron spectroscopic and computational studies of molecules containing metal-metal quadruple and triple bonds as well as of molecules containing formal metal-nitrogen triple bonds. The principles governing the nature of the multiple bonding in these systems are similar whether the multiple bonding occurs between two transition metals or between a transition metal and a nitrogen atom. First, the electronic structures of the R₃M≡N molecules, where R = ᵗBuO (Cr, Mo, W); iPrO (Mo); (CH₃)₂CF₃CO (Mo); and Cl

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38

Kelley, Matthew Ryan. "Guanidinato and amidinato complexes of iridium(I): synthesis O₂ and S₈ reactivity, and (alkene)peroxo- and (alkene)persulfidoiridium(III) intermediates." Diss., University of Iowa, 2012. https://ir.uiowa.edu/etd/2913.

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A variety of mononuclear alkene complexes, [Ir{ArNC(NR2)NAr}(cod)], and dicarbonyl complexes, [Ir{ArNC(NR2)NAr}(CO)2] (where R = Me or Et; Ar = Ph, 4-MeC6H4, 4-MeOC6H4, 2,6-Me2C6H3 or 2,6-iPr2C6H3; and cod = 1,5-cyclooctadiene), were synthesized from the neutral N,N-dialkyl-N',N"-diarylguanidines via deprotonation and transmetalation. These complexes were fully characterized by spectroscopic techniques and single-crystal X-ray diffraction. The single-crystal struc

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39

Blad, Sofia. "Torkat bioavfall som jordförbättringsmedel." Thesis, Uppsala University, Department of Earth Sciences, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-88831.

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<p>The main project Dry preservation of source-separated organic household wastes involves a new technique for treatment of biowaste through drying. Investigations are going on to determine how the dried biowaste best can be used to close the natural circular flow of nutrients. The objective of this degree project is to determine if the dried biowaste can be used as a soil conditioner. By restoring the nutrients in the material to the ground, the natural circular flow is closed. A declaration of contents, including the nutrient levels, C/N ratio, pH and the electrical conductivity of the dried

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40

Calderón, Silvia Margarita. "Estimation of the particle and gas scavenging contributions to wet deposition of organic and inorganic nitrogen." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001538.

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CalderÃ³n, Silvia Margarita. "Estimation of the particle and gas scavenging contributions to wet deposition of organic and inorganic nitrogen." Scholar Commons, 2006. http://scholarcommons.usf.edu/etd/2469.

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Atmospheric deposition of nitrogen species represents an additional nutrient source to natural environments, and can alter the nitrogen cycle by increasing nutrient levels beyond the requirements of organisms. In Tampa Bay, atmospheric deposition of dissolved inorganic nitrogen species (DIN) has been found to be the second largest nitrogen source, but little is known about dissolved organic nitrogen species (DON). The research goal was to improve the dry and wet deposition estimates by inclusion of the DON contribution. In the atmospheric chemistry field a standard method to measure DON in atm

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42

Magalhães, Catarina Maria Pinto Mora Pinto de. "Inorganic nitrogen dynamics in intertidal rocky biofilms and sediments of the Douro estuary : Processes and communities." Doctoral thesis, Universidade do Porto. Reitoria, 2005. http://hdl.handle.net/10216/10594.

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43

Herman, Melissa. "Inorganic fertilizer vs. cattle manure as nitrogen sources for maize (Zea mays L.) in Kakamega, Kenya." Connect to resource, 2009. http://hdl.handle.net/1811/37260.

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Magalhães, Catarina Maria Pinto Mora Pinto de. "Inorganic nitrogen dynamics in intertidal rocky biofilms and sediments of the Douro estuary : Processes and communities." Tese, Universidade do Porto. Reitoria, 2005. http://hdl.handle.net/10216/10594.

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45

Dupuis, Eartha M. "Poultry manure and inorganic fertiliser effects on soil fertility and microbial communities in wheat and corn agroecosystems." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=97946.

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Many producers in North America are finding it profitable to make the transition from conventional farming to organic agriculture. Organic fertilisers may affect crop production and soil quality differently than inorganic fertilisers. The objectives of this study conducted in Ste.-Anne-de-Bellevue. Quebec were to examine crop yield, grain quality, soil fertility and microbial community parameters in wheat and corn agroecosystems receiving poultry manure or inorganic fertiliser. Wheat grain yield declined and corn grain yield did not increase with higher N rates, suggesting that increased N sup

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46

Downward, Alan Murray. "Photo-activated Cytotoxins." Thesis, University of Canterbury. Chemistry, 2010. http://hdl.handle.net/10092/4179.

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The thesis addresses the potential application of ruthenium(II)-cobalt(III) heterodinuclear complexes as a new selective cancer treatment. The selectivity is to be achieved through the use of visible light to trigger activation of the drug. The majority of work conducted relates to the design and synthesis of the bridging ligand for the final ruthenium(II)-cobalt(III) heterodinuclear complex. In Chapter 2, a potential bridging ligand based on a functionalised terpyridine is described. The intention was to bind the ruthenium(II) metal centre to the terpyridine end of the bridging ligand and hav

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47

Kalifa, Ali Mukael. "Effects of inorganic nitrogen and polyamines on growth and development of potato (solanium tubersum L.) in vitro." Thesis, University of Nottingham, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.410334.

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48

Mabasa, Stanford. "Nitrogen and the control of Striga asiatica on maize : timing and dose of organic and inorganic forms." Thesis, University of Sheffield, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289599.

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49

Neikirk, Betty Berry. "Exchanges of Dissolved Inorganic Nitrogen and Dissolved Organic Carbon between Salt Marsh Sediments and Overlying Tidal Water." W&M ScholarWorks, 1996. https://scholarworks.wm.edu/etd/1539617714.

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50

Fulvio, Pasquale Fernando. "Synthesis and Characterization of Ordered Mesoporous Inorganic Nanocomposite Materials." Kent State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=kent1258990927.

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