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Dissertations / Theses on the topic 'Salen complex'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Patil, Smita S. "The preparation and use of metal salen complexes derived from cyclobutane diamine." Diss., Kansas State University, 2014. http://hdl.handle.net/2097/18670.

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Doctor of Philosophy<br>Department of Chemistry<br>Christopher J. Levy<br>The helix is an important chiral motif in nature, there is increasing development in field of helical transition metal complexes and related supramolecular structures. Hence, the goals of this work are to apply the principles of helicity in order to produce metal complexes with predictable molecular shapes and to study their properties as asymmetric catalysts. Computational studies suggest that the (1R,2R)-cyclobutyldiamine unit can produce highly twisted salen complexes with a large energy barrier between the M and P h

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2

Hong, Xiang. "Nouveaux catalyseurs hétérogènes chiraux pour le dédoublement cinétique hydrolytique des époxydesTERMINAUX." Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00770302.

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L'objectif de ce travail étaient le développement de catalyseurs hétérogènes efficaces pour promouvoir des réactions asymétriques, en utilisant la polymérisation oxydante ou la formation de polymères de coordination. De nouveaux complexes de salen Co(III) chiraux modifiés par des groupements aromatiques sur les position 5, 5' ont été préparés et testés dans le dédoublement cinétique hydrolytique (HKR) des époxydes terminaux en conditions homogènes. Ces complexes ont été ensuite engagés dans les polymérisations oxydantes électrochimiques ou chimiques, et une stratégie de copolymérisation a four

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3

Marvin, Heath (Heath Allen). "Dynamics of sales compensation systems for complex sales in the semiconductor industry." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/106256.

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Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, School of Engineering, System Design and Management Program, Engineering and Management Program, 2016.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 66-67).<br>The semiconductor industry has entered a new phase where growth is in line with the rest of the economy. This change from rapid growth to average growth is forcing changes in how business is done across the industry. One area that can be inspected is incentivization and compensation of companies' sales forces. Whil

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4

McCue, Alan J. "Heterogenisation of manganese salen complexes for epoxidation." Thesis, University of Aberdeen, 2012. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=185907.

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Silica functionalised with PAMAM dendrimer chains has been investigated as a support for anchoring chiral salen complexes in both an axial and covalent fashion. It was found that using a high dendrimer chain density resulted in very low enantioselectivity in the epoxidation of styrene, 1-methyl-1-cyclohexene and α-methylstyrene. Through a thorough series of tests the poor performance was attributed to both interactions with the surface and with neighbouring dendrimer chains. It was found that the system could be improved by decreasing the dendrimer chain density and pacifying the surface by ca

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5

Young, Carl. "Asymmetric cyanohydrin synthesis using heterobimetallic salen complexes." Thesis, University of Newcastle Upon Tyne, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.500998.

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Asymmetric cyanohydrin synthesis is a broad and developing area of organic chemistry to which many groups have contributed over the years. Notably, North et al have developed highly active salen based catalysts 1 and 2 for the asymmetric addition of cyanide to aldehydes. More recent mechanistic investigations have revealed that combining complexes 1 and 2 gave interesting results indicating the possible formation of and catalysis by a new heterobimetallic complex formed in-situ. This thesis follows on from the initial study and offers good evidence for the formation of a mixed metal bimetallic

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6

Leod, Tatiana Cristina de Oliveira Mac. "Metaloporfirinas e compostos salen como modelos biomiméticos do citocromo P450 no metabolismo de fármacos anticonvulsivante e antidepressivo." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/59/59138/tde-21052009-113014/.

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Neste trabalho foram estudadas a atividade catalítica de metaloporfirinas e complexos salen (catalisador de Jacobsen), em solução e imobilizados em diferentes suportes, na oxidação de hidrocarbonetos e fármacos anticonvulsivantes (carbamazepina e primidona) e antidepressivo (fluoxetina), utilizando os seguintes doadores de oxigênio: peróxido de hidrogênio, terc-butil hidroperóxido (t-BOOH), ácido m-cloroperbenzóico (m-CPBA) e iodosilbenzeno (PhIO). Os catalisadores contendo o complexo salen imobilizado em alumina, membranas de quitosana e membranas polidimetilssiloxano/acetato de polivinila (P

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7

Zieleniuk, Candace A. "Anion binding and catalytic studies of metal salen complexes." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0024865.

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8

Bergestuen, Trond. "Insights into the Complex Relationship between Independent Manufacturers' Representatives and Their Principals." Thesis, University of North Texas, 2020. https://digital.library.unt.edu/ark:/67531/metadc1707323/.

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Independent manufacturers' representatives (IMRs) are companies that sell products on behalf of manufacturers (principals), typically on a commission basis. IMRs offer principals specialized knowledge about product areas or markets, and they can function as attractive supplements or replacements for in-house sales units. The literature on IMRs' allocation of resources to their principals and the downstream impact on performance is underexplored. A paucity of published research exists using actual IMR sales and commission data, likely because this data is difficult to collect due to its sensiti

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9

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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10

Achard, Thierry R. J. "Asymmetric catalysis of enolate reactions induced by metal(salen) complexes." Thesis, University of Newcastle Upon Tyne, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.427192.

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11

Zhang, Weiqiang. "Synthesis of novel chiral pyrrolidine-type (salen)Mn(III) complexes." Thesis, Swansea University, 2006. https://cronfa.swan.ac.uk/Record/cronfa42403.

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The thesis reports the total syntheses of new chiral pyrrolidine-type salen ligands 5.4 and their corresponding Mn(III) complexes 5.5. The salen ligands were synthesized by condensation of tras-(3R,4R)-diaminopyrrolidine (3.12) or trans-(3R,4R)-1-benzyl-3,4-diaminopyrrolidine (3.10) with two equivalents of (R)-3-formyl-2-hydroxy-2'-phenyl-1,1'-binaphthalene [(R)-4.9]. The salen ligands were transformed to their corresponding Mn(III) complexes following a general procedure. The catalytic performances of the synthesized (salen)Mn(III) complexes in asymmetric epoxidation of 1,2-dihydronaphthalene

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12

Tucker, S. C. "Towards novel ligands for catalytic asymmetric oxidation." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242038.

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13

Angelino, Mark D. "Enantioselective catalysis using heterogeneous and dissymmetric salen complexes of Mn and Cr." Thesis, Massachusetts Institute of Technology, 1999. http://hdl.handle.net/1721.1/85362.

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14

Niederer-Bátorfi, Melinda [Verfasser]. "Enantioselective ring opening reactions catalysed by heterogenized metal salen complexes / Melinda Niederer-Bátorfi." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2012. http://d-nb.info/1019762705/34.

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15

Hunt, Jamie. "C1- and C2- Symmetrical Metal-Salen Complexes and their Application to Asymmetric Catalysis." Thesis, University of Newcastle Upon Tyne, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.515075.

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16

Dyers, Leon Jr. "Development of salen metal complexes for the potential catalytic use in asymmetric reaction." DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 2005. http://digitalcommons.auctr.edu/dissertations/2359.

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This research effort is focused on the development of new transition-metal salencomplexes bearing bulky t-pentyl groups to further understand their role in the directing of substrates to the reactive metal centers. These new chiral and achiral transition-metal salen complexes also possess the ability to be novel asymmetrical catalysts. A series ofsalen ligands were prepared by the condensation of 3,5-di-t-pentyl salicylaldehyde with five different diamines: (1) 1,3-diamino-propan-2-01, (2) benzene-l,2-diamine, (3) ethylene-l,2-diamine, (4) (S,S)-1,2-diamino-l,2-diphenylethane, and (5) 1,2- dia

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17

Pop, Mihaela Diana. "Symmetrical and asymmetrical Salen-type Schiff-base ligands and their transition metal complexes." Thesis, University College London (University of London), 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.408061.

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18

Aranha, Pedro Esteves. "Complexos de Cromo(III)-salen como catalisadores em reações de oxidação de sulfetos." Universidade Federal de São Carlos, 2009. https://repositorio.ufscar.br/handle/ufscar/6426.

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Made available in DSpace on 2016-06-02T20:36:17Z (GMT). No. of bitstreams: 1 2420.pdf: 1643504 bytes, checksum: 300b3f1fb9486105814ede717fa1b1fc (MD5) Previous issue date: 2009-02-06<br>Universidade Federal de Sao Carlos<br>Transition metal complexes participate in many chemical processes. The study of these complexes is very interesting because of the diversified chemistry and great utility. Transition metal complexes act as catalysts in various homogenous and heterogeneous systems. The catalytic activity of these complexes is due to the presence of only one active metallic site for the cat

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19

Lecarme, Lauréline. "Synthèse de complexes métallo-salen et dérivés pour la biocatalyse et l'assemblage supramoléculaire." Thesis, Grenoble, 2014. http://www.theses.fr/2014GRENV038/document.

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Des complexes salen et dipyrrophénolate de fer comportant des unités phénolatesenrichies en électron (substituants tert-butyl ou methoxy) ont été préparés. Leur chimieoxydative conduit à des espèces radicalaires dont une a été caractérisée par diffraction desRX. Les complexes dipyrrophénolate de manganèse et cuivre ont été également étésynthétisés et oxydés, engendrant des espèces radicalaires. Le premier s’est avéré efficace entermes d’oxygénation d’oléfines, le second pour l’oxydation d’alcools.La fonctionnalisation des phénols par des chaînes alkylimidazolium rend les complexeshydrosolubles

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20

Mackiewicz, Ryan Michael. "Structural and mechanistic studies into the copolymerization of carbon dioxide and epoxides catalyzed by chromium salen complexes." Texas A&M University, 2003. http://hdl.handle.net/1969.1/3849.

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The ability to utilize cheaper starting materials in the synthesis of commercially important materials has been a goal of scientists since the advent of the chemical industry. The ideal situation would be one in which by combining the correct proportions of hydrogen, nitrogen, carbon and oxygen that virtually anything from simple sugars to complex polymers could be produced. Unfortunately, such processes are flights of fancy often reserved for movies and television shows. On a more realistic level, the utilization of simple molecules and a transition metal catalyst has been a process that indu

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21

Omedes, Pujol Marta. "The role of the counterion in the catalytic activity of vanadium(V)(salen) complexes." Thesis, University of Newcastle Upon Tyne, 2012. http://hdl.handle.net/10443/1492.

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Over the last ten years, the North group has developed VO(salen)X complexes as an efficient catalytic system for the asymmetric addition of trimethylsilyl cyanide to aldehydes. It was found that the nature of the counterion X has a significant influence on the catalytic activity, but not on the enantioselectivity of the reaction. Complexes with the most coordinating counterions displayed the highest levels of catalytic activity. Kinetic studies revealed that the monometallic VO(salen)X complexes exist in equilibrium with bimetallic complexes, and both are catalytically active. This was support

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22

Zidelmal, Nacim. "SILIPOLYSALEN : étude du greffage par polymérisation contrôlée de complexes de salen sur silicium pour une application en catalyse asymétrique hétérogène." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLS058.

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Les complexes métalliques chiraux de type salen sont connus pour la diversité de leur utilisation en catalyse conduisant à la préparation de nombreux synthons énantio-enrichis. Conformément au concept de chimie verte, l'un des principaux objectifs est d'établir une procédure efficace pour la récupération et la réutilisation de ces catalyseurs. Dans ce contexte, l'objectif de ce travail est de fonctionnaliser la surface du silicium par greffage covalent de ces catalyseurs par polymérisation contrôlée notamment la polymérisation radicalaire par transfert d’atome (ATRP) pour leur récupération et

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23

Barman, Sanmitra. "Helical transition metal complexes as catalysts for asymmetric sulfoxidations and aldol addition reactions." Diss., Kansas State University, 2010. http://hdl.handle.net/2097/7015.

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Doctor of Philosophy<br>Department of Chemistry<br>Christopher J. Levy<br>Stepped helical salen complexes with vanadium as the central metal were synthesized and characterized. The helicity in these complexes arise from the fused phenyl rings (phenanthryl and benz[a]anthryl) as sidearms, whereas the chirality arises from the chiral cyclohexyl diamine or binaphthyl diamine backbones. These complexes showed good yields and moderate enantioselectivity in asymmetric sulfoxidation reactions with methylphenyl sulfide as the substrate and H2O2 or cumene hydroperoxide as the oxidants. To further impro

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24

Zanão, Lídia Renata. "Avaliação de fungos e complexos de salen na obtenção do metabólito quiral e ativo terbutalina." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/59/59138/tde-26112013-203126/.

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Enantiômeros podem interagir de maneira diferenciada no organismo, ocasionando efeitos farmacológicos variados. Dessa forma, metodologias para a obtenção de fármacos enantiomericamente puros são importantes para a indústria farmacêutica. Modelos sintéticos empregando reagentes quirais, como complexos de salen e modelos biológicos utilizando fungos estão sendo muito estudados neste contexto. O uso de fungos apresenta como principais vantagens o crescimento rápido, baixo custo e fácil operação, além da produção de metabólitos em grande quantidade. Complexos de salen são eficientes e estáveis, p

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25

Wu, Xianghong Gorden Anne Elizabeth. "Synthesis and applications of 2-quinoxalinol salens and their metal complexes." Auburn, Ala., 2008. http://hdl.handle.net/10415/1425.

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26

Dandachi, Hiba. "Nouveaux Complexes Oligomères Cycliques de Salens Chiraux pour la Catalyse Asymétrique." Thesis, Université Paris-Saclay (ComUE), 2015. http://www.theses.fr/2015SACLS106/document.

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Les ligands de type salen constituent la pierre angulaire des travaux décrits dans cette thèse. L’attention particulière portée aux complexes chiraux correspondants est due à leur utilisation comme catalyseurs énantiosélectives versatiles pour promouvoir une large gamme de réactions d’intérêt. Dans le contexte de la catalyse asymétrique hétérogène, nous nous focalisons plus particulièrement sur l’élaboration de catalyseurs polymères cycliques de salens chiraux, appelés complexes calixsalens. Ainsi, nous avons mis au point une voie d’accès directe aux calixsalens de cobalt (III) par polycondens

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27

Nyström, Emelie, and MADELEINE BERN. "Sales and Operations Planning : Major obstacles faced by complex manufacturing organizations in operationalizing a standard level process." Thesis, KTH, Industriell Management, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-159290.

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Litteraturen om Sälj- & verksamhetsplanering (S&OP) är generellt sett samstämmig kring slutsatsen att en sådan process är överlägsen traditionell planering, där varje funktion planerar sin egen verksamhet. Men även om konceptet och möjliga fördelar är lätta att förstå, så har det visat sig svårt för många företag att operationalisera processen i verkligheten. Syftet med denna studie var därför att undersöka vilka stora hinder ett komplext tillverkande företag ställs inför vid operationaliserandet av en Sälj- & verksamhetsplaneringsprocess. För att fylla detta syfte så gen

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28

Bursiek, Chris. "Factors influencing aftermarket parts sales in China: the case of an American manufacturer." Thesis, Kansas State University, 2013. http://hdl.handle.net/2097/35224.

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Master of Agribusiness<br>Department of Agricultural Economics<br>Vincent R. Amanor-Boadu<br>The China agricultural equipment market represents 48% of the equipment demand in South East Asia, and 16.5% of the global equipment demand in 2005. With John Deere’s market leadership position in the global agricultural equipment business, in order to maintain that leadership, China will have be part of their plans. John Deere started doing business in China in 1976 and has grown to four agricultural machinery factories in the country. Service parts sales make up an important part of the agricultural

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29

Wiznycia, Alexander V. "The preparation and study of Bis(pyridyl-imine) and Monohelical salen-type complexes of iron and zinc." Diss., Manhattan, Kan. : Kansas State University, 2006. http://hdl.handle.net/2097/200.

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30

Soulet, Frédéric. "Electrodes greffées par des complexes de coordination du fer à ligands bases de Schiff du type Salen." Toulouse 3, 1996. http://www.theses.fr/1996TOU30036.

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Les annees 1980 ont ete marquees par l'apparition de nouveaux materiaux: les polymeres organiques conducteurs comme les polyanilines, les polypyrroles et les polythiophenes qui sont synthetises par oxydation electrochimique. Un nouveau developpement de ces materiaux est apparu avec l'idee d'introduire dans la matrice des especes possedant une activite electrochimique propre, comme des complexes de coordination. Ces materiaux dopes constituent les electrodes modifiees qui sont utilisees en electrocatalyse. Les complexes de coordination retenus pour cette etude sont essentiellement des complexes

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31

Anselmo, Daniele. "Lewis acidic zn(ii) schiff base complexes in homogeneous catalysis." Doctoral thesis, Universitat Rovira i Virgili, 2013. http://hdl.handle.net/10803/127634.

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El trabajo descrito en esta tesis muestra estudios hacia nuevas aplicaciones de complejos derivados de bases de Schiff en catálisis homogénea. En concreto, se han investigadoligandos “salen” (incluyendo sistemas quelantes N2S2) ytambiénse han examinado otros aspectos que generalmente se consideran importantes en el contexto del aumento de la sostenibilidad de los procesos químicos. Estudios sobre el uso de estos compuestos acidos de Lewis en la catálisis de la fijación de dióxido de carbono, de reacciones de múltiples componentespara obtener indoles sustituidos y de reciclado de agregados supr

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Ford, David Dearborn. "The Role of Catalyst-Catalyst Interactions in Asymmetric Catalysis with (salen)Co(III) Complexes and H-Bond Donors." Thesis, Harvard University, 2013. http://dissertations.umi.com/gsas.harvard:11154.

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In asymmetric catalysis, interactions between multiple molecules of catalyst can be important for achieving high catalyst activity and stereoselectivity. In Chapter 1 of this thesis, we introduce catalyst-catalyst interactions in the context of the classic Kagan nonlinear effect (NLE) experiment, and present examples of the strengths and drawbacks of the NLE experiment. For the remainder of the thesis, we explore catalyst-catalyst interactions in the context of two different reactions. First, in Chapter 2, we apply a combination of reaction kinetics and computational chemistry to a reaction th

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Anastácio, Fernanda Cristina. "Estudo da redução eletrocatalítica do CO2 em eletrodos recobertos com metalopolimeros a base de complexos metálicos de Salen /." São José do Rio Preto, 2017. http://hdl.handle.net/11449/151059.

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Orientador: Marcos Fernando de Souza Teixeira<br>Coorientador: Eduardo René Pérez González<br>Banca: Madalina Maria Barsan<br>Banca: Deuber Lincon da Silva Agostini<br>Resumo: O presente projeto de mestrado apresenta os resultados obtidos da modificação de eletrodos de platina recoberto com metalopolímeros, baseados em complexos metálicos de níquel(II) e paládio(II) com o ligante base de Schiff (N,N'-bis(salicilideno)etilenodanina) (Salen) com aplicação na redução eletrocatalítica de CO2. A obtenção do ligante e respectivos complexos foram confirmados mediante as técnicas espectroscópica na re

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Garcia, Michel-Ange. "Epoxydation énantiosélective d'oléfines trisubstituées catalysée par des complexes salen-MnIII : application aux dérivés du geraniol et du nérol." Aix-Marseille 2, 1996. http://www.theses.fr/1996AIX22027.

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La synthese enantioselective d'epoxydes a partir d'olefines prochirales constitue actuellement un domaine de recherche particulierement actif. C'est ainsi que ces dernieres annees ont vu plus particulierement se developper l'utilisation de complexes (salen)mn optiquement actifs en tant que catalyseurs de la reaction d'epoxydation. Les resultats enregistres principalement par jacobsen et katsuki rendent compte de bons, voire meme, de tres bons rendements et exces enantiomeriques. Cependant, la grande majorite des resultats fournis par la litterature concerne des olefines le plus souvent disubst

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Adam, Matias B. "Improving complex sale cycles and performance by using machine learning and predictive analytics to understand the customer journey." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/118010.

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Thesis: S.M. in Management of Technology, Massachusetts Institute of Technology, Sloan School of Management, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 92-99).<br>Today's business operations and decision management demand that firms respond efficiently in an increasingly dynamic and highly competitive external environment. Business-to-business firms need insight about markets and customers along the entire sales and marketing cycle. This demand is complicated by the inflexibility of legacy systems and growing distributed architectures add even

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Landín, Miranda María del Rosario. "Classroom Project: A Proposal Towards Teaching and Professional Development Innovation." Pontificia Universidad Católica del Perú, 2015. http://repositorio.pucp.edu.pe/index/handle/123456789/117263.

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An institutional policy that has generated collective work in the field of teacher's practice innovation and the training processes at the Universidad Veracruzana, Mexico, is the one called Aula Project (where Aula means Classroom). This project is a proposal based on three main axis: complex thinking; research and ICT. Inthe current document, I present an synthesis meta-reflexive originated from my experience in the implementation of the aforementioned project.<br>Una de las políticas institucionales que ha generado un trabajo colectivo para innovar la práctica docente y los procesos de forma

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Frantz, Eric Benjamin. "Synthesis, reactivity, and coordination chemistry relevant to the copolymerization of CO2 and epoxides by first row transition metal schiff base complexes." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2893.

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Billodeaux, Damon Ray. "Investigations on the use of main group metal complexes of salen ligands as catalysts for the copolymerization of CO2 and epoxides." Texas A&M University, 2005. http://hdl.handle.net/1969.1/2425.

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Current industrial processes for the production of polycarbonates, a thermoplastic valued for commercial applications, leave much to be desired from an environmental viewpoint. Research into alternative methods for production of polycarbonates has focused on the copolymerization of carbon dioxide and epoxides for the benefits of eliminating phosgene as a reagent, and for the economic impact of incorporating CO2 as a low cost C1 feedstock. Early work in this field focused on the use of zinc-derived catalysts, but recent studies indicate that chromium complexes of the salen (N,N-bis-(salicyliden

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Dyers, Leon Jr. "The synthesis of New-3d-4f Acylic salen Metallic complexes and the rapid microwave-assisted synthesis of imidazor[1,5-a] Pyridines." DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 2007. http://digitalcommons.auctr.edu/dissertations/2360.

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The first portion of this dissertation entails the development of new transitionmetal salen complexes, which are used to chelate lanthanides in their compartmental units (both cis and 3,3'-methoxy oxygens). The resulting complexes possess the ability to be used as sensitizers for near-infrared emission and MRI contrasting agents. The second part details the rapid synthesis of imidazo[I,5-a]pyridines from pyridyl ketones, aromatic aldehydes, and ammonia acetate in acetic acid via microwave assisted organicsynthesis. Lastly, the imidazo[I,5-a]pyridine scaffold was further examined as a ligand ch

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Dyers, Leon Jr. "The synthesis of new 3d-4f acylic salen metallic complexes and the rapid microwave-assisted synthesis of imidazo[1,5-ɑ]pyridines". DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 2007. http://digitalcommons.auctr.edu/dissertations/2700.

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The first portion of this dissertation entails the development of new transition-metal salen complexes, which are used to chelate lanthanides in their compartmental units (both cis and 3,3'-methoxy oxygens). The resulting complexes possess the ability to be used as sensitizers for near-infrared emission and MRI contrasting agents. The second part details the rapid synthesis of imidazo[1,5-ɑ]pyridine scaffold was further examined as a ligand chelated with RuII, FeIII, and VOIV salts.

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Sanogo, Tibogo Tiono. "Etude de l'activité des protéases dans un milieu complexe application au modèle caséine alpha-S1-papaine en milieu salin /." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376184358.

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Xu, Ying. "Interprétation thermochimique des interactions non-covalentes induites par les β-carbolines et origine de la stabilité de complexe ADN/médicament en phase gazeuse". Paris 6, 2007. http://www.theses.fr/2007PA066387.

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Une exploration sur les complexes non-covalents duplex/ligand en phase gazeuse a été réalisé, pour montrer comment certains médicaments interagissent avec l’ADN. Nous avons d’abord tenté une interprétation thermochimique des interactions non-covalentes entre l’ADN et les -carbolines (et les bis--carbolines), pour trouver des indices expliquant leurs relations structure/activité. Ainsi, il serait possible de rechercher de nouveaux composés de plus forte activité. Ensuite, l’origine de la stabilité de complexes non-covalents a été étudiée en ESI-FT/ICR, en utilisant le Hoechst 33258 comme modè

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Glavas, Amina, and Fares Abugharbia. "Sales and Operations Planning : A study into managing the silo culture in an ETO manufacturing." Thesis, Blekinge Tekniska Högskola, Institutionen för industriell ekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-21858.

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Background: Over the past years, companies have competed in a globalized and dynamic environment which has forced them to implement various incentives in order to gain cost advantages. Companies have tried to implement Sales and Operations Planning (S&OP) but many have not managed to get the expected results. Coordinating sales and operations remains a crucial challenge because of the multiple differences and conflicts in objectives and responsibilities, referred to as having a silo culture. As many companies have encountered this barrier in conjunction with an S&OP implementation, inv

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Bergstedt, Malin. "Sales and Operations Planning Framework : How to balance demand and supply for a project-oriented and complex organization operating inthe aerospace and defence industry." Thesis, Linköpings universitet, Produktionsekonomi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-156501.

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One challenge organizations are facing in all industries is determining the likely events of the future and developing strategies to handle these challenges. Sales and operations planning are a decision-making process and tool that helps organizations to allocate resources not only to handle the challenges but also to take advantage of future conditions by balancing supply and demand. There is only a limited amount of framework and models available today. This project will divulge and reveal a new framework for sales and operations planning which has been developed in collaboration with an org

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Teixeira, Fernando Jorge de Sousa. "Liquídos iónicos como solventes neotéricos para a epoxidação assimétrica de alcenos catalisada por complexos de [Mn(III)SalenX]." Dissertação, Porto : [s.n.], 2005. http://catalogo.up.pt/F?func=find-b&local_base=FCB01&find_code=SYS&request=000083305.

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Teixeira, Fernando Jorge de Sousa. "Liquídos iónicos como solventes neotéricos para a epoxidação assimétrica de alcenos catalisada por complexos de [Mn(III)SalenX]." Master's thesis, Porto : [s.n.], 2005. http://hdl.handle.net/10216/64069.

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Saleh, Noureldin [Verfasser], and Timothy [Gutachter] Clark. "Understanding the principles of GPCR selectivity by homology modeling and simulation of ternary complexes / Noureldin Saleh. Gutachter: Timothy Clark." Erlangen : Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 2016. http://d-nb.info/1113290285/34.

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Sampaio, Rômulo Severo. "Síntese de derivados do ácido de Meldrum análogos aos salens/salofens e dos seus complexos de Mn para uso em catálise biomimética." Universidade Federal da Paraíba, 2013. http://tede.biblioteca.ufpb.br:8080/handle/tede/7110.

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Made available in DSpace on 2015-05-14T13:21:28Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 3057605 bytes, checksum: 28d023a60720f2efcfba34ac8067319f (MD5) Previous issue date: 2013-07-24<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>We describe here the synthesis and characterization of six compounds derived from Meldrum's acid inspired in the classic salens/salofens systems: four ligands (H2melen, H2Cy2melen, H2melophen, and H2Cy2melophen) and two Mn complexes [MnII(melophen)·1,7H2O and MnII(Cy2melophen)·1,7H2O]. Only H2melofen has been previously described

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Olsson, Lina, Ida Samuelsson, and Hanna Westerlund. "Level Complete : En kvalitativ studie om gamifications förekomst inom säljorganisationer, och vägen till mer engagerade och motiverade medarbetare." Thesis, Linnéuniversitetet, Institutionen för ekonomistyrning och logistik (ELO), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-60545.

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Tidigare studier har visat att majoriteten av anställda inom svenska organisationer har ett bristande i engagemang till sitt arbete, vilket kan bero på att feedback och belöning kommer alltför långt efter slutförandet av en uppgift. Forskning har även visat att yttre belöningar till följd av en prestation endast fungerar väl på kort sikt, men att det trots det finns företag som använder sig av yttre belöning för att motivera sina medarbetare. Ett exempel är säljorganisationer. Gamification är en relativt ny framväxande idé som innebär applicering av spelelement i icke spelliknande kontexter, f

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Senf, Antti Alexander. "Design and synthesis of photoswitchable polymerization catalysts." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17544.

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Die andauernden Entwicklungen auf dem Gebiet der kontrollierten Polymerisation haben zu zahlreichen neuen Methoden geführt, um klar definierte Polymere zu synthetisieren. Die dabei entstehenden molekularen Strukturen haben einen großen Einfluss auf die makroskopischen Eigenschaften. Hier werden Ansätze beschrieben um Polymerisation in situ zu steuern, was zur besseren Kontrolle von Polymereigenschaften führen soll. Zu diesem Zweck wurden etablierte organometallische Katalysatoren mit Azobenzolen funktionalisiert, um die Geometrie des Katalysators in situ zu ändern. Zuerst wurde ein Salen-Kata

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