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Dissertations / Theses on the topic 'Dibenzo'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Joseph-Charles, Julienne. "Etudes chromatographiques et spectrophotométriques de molécules tricycliques dibenzo- et pyridobenzo- cycloheptaatomiques." Bordeaux 2, 1992. http://www.theses.fr/1992BOR2E004.

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2

Ebert, Jörg. "Untersuchungen zur Optimierung der Analytik der polybromierten Dibenzo-p-dioxine und Dibenzofurane." [S.l. : s.n.], 1998. http://deposit.ddb.de/cgi-bin/dokserv?idn=955472636.

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3

Chatkittikunwong, Watcharee. "Analytical synthesis and stability studies of halogenated dibenzo-p-dioxins and dibenzofurans." Thesis, University of East Anglia, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335138.

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4

Wessels, Hanlie R. "Dibenzo-30-crown-10: Synthetic optimization and studies of the binding conformation." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/95205.

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Dibenzo-30-crown-10 (DB30C10) is one of the first-generation macrocyclic hosts discovered by Pedersen. Crown ethers originally attracted attention due to their ability to encapsulate metal cations and render them soluble in organic solvents. These studies helped to launch host-guest chemistry as a discipline within supramolecular chemistry. Crown ethers form complex molecules containing organic cations and neutral organic molecules. Additionally, they form components in supramolecular architectures such as catenanes, rotaxanes, and supramolecular polymers. They have been used as selective host

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5

Memetzidis, Georgios. "Pharmacochimie de la tetrahydro-5,6,13,13a 8h-dibenzo (a, g) quinolizine ou berbine." Université Louis Pasteur (Strasbourg) (1971-2008), 1988. http://www.theses.fr/1988STR13159.

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6

Palamede, Audrey. "Stabilization of chlorinated dibenzo-p-dioxins, dibenzofurans and chlordecone in soils from three former industrial areas. : Leaching behavior of chlorinated dibenzo-p-dioxins, dibenzofurans and chlordecone from three soils." Thesis, Umeå universitet, Kemiska institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-163550.

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7

Poblete, González Cristián Ignacio. "Estudio de las especies transientes generadas durante la fotorreducción por aminas de oxoisoaporfinas : 5-metoxi-7H-dibenzo[de,h]quinolin-7-ona y 7H-dibenzo[de,h]quinolin-7-ona." Tesis, Universidad de Chile, 2007. http://repositorio.uchile.cl/handle/2250/105633.

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Memoria para optar al título de Químico Farmacéutico<br>Los sistemas fotosintéticos naturales y artificiales en los cuales la energía de la luz es colectada y almacenada como energía química, es un proceso de conversión que es iniciado con la transferencia fotoinducida de un electrón, que es seguida por otras etapas químicas que permiten la separación y estabilización cinética de los llamados “sistemas de carga separada”. Este es el caso de las 7H-dibenzo[de,h]quinolin-7-onas, conocidas como oxoisoaporfinas, que al ser fotorreducidas en presencia de aminas generan fotoproductos iónicos

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8

Schmidt, Eva. "Duplikatstudie zur alimentären Aufnahme von polychlorierten Dibenzo-p-dioxinen und Dibenzofuranen bei Kindern." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=963979094.

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9

Disse, Gerhard. "Bilanzierung von polychlorierten Dibenzo-p-dioxinen und Dibenzofuranen bei der Fermentierung von Klärschlamm /." Inhaltsverzeichnis, 1997. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=007734926&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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10

Akki, Umesh. "Gas phase formation pathways and mechanisms of polychlorinated dibenzo-p-dioxins and dibenzofurans." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/23157.

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11

Saeed, Anam. "Studies on the Decomposition of Selected Brominated Flame Retardants (BFRs) and Formation of Polybrominated Dibenzo-p-dioxins and Dibenzofurans (PBDD/Fs) and Mixed Halogenated Dibenzo-p-dioxins and Dibenzofurans (PXDD/Fs)." Thesis, Saeed, Anam (2016) Studies on the Decomposition of Selected Brominated Flame Retardants (BFRs) and Formation of Polybrominated Dibenzo-p-dioxins and Dibenzofurans (PBDD/Fs) and Mixed Halogenated Dibenzo-p-dioxins and Dibenzofurans (PXDD/Fs). PhD thesis, Murdoch University, 2016. https://researchrepository.murdoch.edu.au/id/eprint/35843/.

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Brominated flame retardants (BFRs) are bromine-bearing hydrocarbons added or applied to materials to increase their fire resistance. As thermal treatment or recycling activities are common disposal methods for BFR-laden objects, it is essential to determine the precise decomposition chemistry of BFRs at elevated temperatures, and their transformation pathways into hazardous pollutants. Sunlight can trigger the photodecomposition of BFRs, either during the life cycle of treated objects, or when emitted to the environment after disposal. Therefore, knowledge of the geometric and electronic struc

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12

Nieuwoudt, Claudine. "The determination of dioxin-like POPs in sediments and fish of the Vaal Triangle region, Gauteng, South Africa / Claudine Nieuwoudt." Thesis, North-West University, 2006. http://hdl.handle.net/10394/1619.

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13

Dettmer, Fabian Tobias. "Bromorganische Flammschutzmittel analytische Anforderungen und thermische Bildung von polybromierten Dibenzo-p-dioxinen und Dibenzofuranen /." [S.l. : s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=961148497.

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14

Hackelöer, Kristina [Verfasser]. "Untersuchungen zum Aufbau von Dibenzo[a,c]cycloheptenen durch intramolekulare oxidative Biarylkupplung / Kristina Hackelöer." München : Verlag Dr. Hut, 2011. http://d-nb.info/1018982795/34.

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15

Hu, Keke. "Structure-activity relationships for the metabolism of polychlorinated dibenzo-p-dioxins and related compounds." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ35799.pdf.

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16

Nüllen, Max Peter [Verfasser]. "Synthese von Dibenzo[b,d]pyran Naturstoffen mittels Kreuzkupplung von Aromaten / Max Peter Nüllen." Gießen : Universitätsbibliothek, 2011. http://d-nb.info/1063111072/34.

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17

Huang, Feihe. "Pseudorotaxanes and Supramolecular Polypseudorotaxanes Based on the Dibenzo-24-Crown-8/Paraquat Recognition Motif." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/9610.

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The research presented in this thesis focused on pseudorotaxanes and supramolecular polymers based on a new recognition motif, the dibenzo-24-crown-8/paraquat recognition motif. Main kinds of pseudorotaxanes and rotaxanes and various protocols used for the study of them were discussed first. By preparation and characterization of a series of pesudorotaxanes based on DB24C8 and paraquat derivatives, it was found that these complexes were stabilized by N+...O interactions, C-H...O hydrogen bonding, and face-to-face p-stacking interactions. Because methyl protons of paraquat are involved in hyd

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18

SINER, ANGELA. "In vivo metabolism of 7H-dibenzo[c.g.] carbazole (DBC) and benzo[a]pyrene (BaP)." University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1014752553.

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19

Arnoldsson, Kristina. "Polybrominated dibenzo-p-dioxins : Natural formation mechanisms and biota retention, maternal transfer, and effects." Doctoral thesis, Umeå universitet, Kemiska institutionen, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-50887.

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Polybrominated dibenzo-p-dioxins (PBDD) and dibenzofurans (PBDF) are a group of compounds of emerging interest as potential environmental stressors. Their structures as well as toxic responses are similar to the highly characterized toxicants polychlorinated dibenzo-p-dioxins. High levels of PBDDs have been found in algae, shellfish, and fish, also from remote areas in theBaltic Sea. This thesis presents studies on PBDD behavior in fish and offspring, and natural formation of PBDDs from naturally abundant phenolic precursors. The uptake, elimination, and maternal transfer of mono- to tetraBDD/

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20

Keim, Torsten. "Untersuchungen zur Aufklärung von Stoffwechselwegen beim mikrobiellen Abbau von substituierten Dibenzofuranen und Dibenzo-1,4-dioxinen." [S.l. : s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=959118640.

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21

MacNeil, Stephen L. "Carbanionic routes to substituted tolyl sulfonamides, acridones, and 5H-dibenzo[b,f]azepin-10-ones." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2002. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ63436.pdf.

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22

Ryu, Jae-Yong. "Dioxin formation on copper (II) chloride from chlorinated phenol, dibenzo-p-dioxin and dibenzofuran precursors." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/19050.

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23

Memetzidis, Georgios. "Pharmacochimie de la tétrahydro-5, 6, 13, 13a 8H-dibenzo [a, g] quinolizine ou berbine." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37616245j.

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24

Beyer, Doreen, Shiyong Wang, Carlo A. Pignedoli, et al. "Graphene Nanoribbons Derived from Zigzag Edge-Encased Poly(para-2,9-dibenzo[bc,kl]coronenylene) Polymer Chains." ACS Publications, 2019. https://tud.qucosa.de/id/qucosa%3A37010.

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In this work, we demonstrate the bottom-up on-surface synthesis of poly(para-dibenzo[bc,kl]-coronenylene) (PPDBC), a zigzag edge-encased analog of poly(para-phenylene) (PPP), and its lateral fusion into zigzag edge-extended graphene nanoribbons (zeeGNRs). Toward this end, we designed a dihalogenated di(meta-xylyl)anthracene monomer displaying strategic methyl groups at the substituted phenyl ring and investigated its applicability as precursor in the thermally induced surface-assisted polymerization and cyclodehydrogenation. The structure of the resulting zigzag edge-rich (70%) polymer PPDBC w

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25

Chao, Shih-Hua, and 趙世華. "Synthesis of Dibenz[a,c]anthracene and Dibenzo[f,h]pyrazino[2,3-b]quinoxaline Discogens." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/mp4xx7.

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碩士<br>國立中山大學<br>化學系研究所<br>101<br>We have synthesized the Dibenz[a,c]anthracene as the discogen via Wittig reaction with simply and quickly routes. Otherwise, We adjusted the molecule symmetry with modifying the alkoxy side-chain length. The properties of the series of compounds which based on Dibenz[a,c]anthracene as discogens were determined through polarized optical microscopy (POM), differential scanning calorimetry (DSC) and X-ray diffraction (XRD). Finally, we found that all series were not exhibiting liquid crystal properties but some of them showing the spherulite alignment. We also obt

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26

Yi-HsuanHuang and 黃苡諠. "Syntheses, Structure Analyses and Physical Properties of Dibenzo[a,j]anthracene and Dibenzo[a,l]tetracene-Based Macrocycles." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/w33vve.

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碩士<br>國立成功大學<br>化學系<br>107<br>Herein we reported the syntheses of a new class of dibenzo[a,j]anthracene and dibenzo[a,l]tetracene-based macrocycle receptors. MC1 and MC4 was prepared through the Suzuki coupling of their precursors 14 and 19, whih can be extended by the intramolecular McMurry coupling reaction to synthesize MC2 and MC5. Furthermore, the photophysical and electrochemical properties were investigated via UV-Vis spectroscopy, fluorescence spectroscopy and cyclic voltammetry. We also illustrated the characterization of macrocycles binding with the metal ions via 1HNMR, MALDI-TOF-MS

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27

Xiu-BoYe and 葉秀柏. "Syntheses, Structure Analyzes and Physical Properties of Dibenzo[a,j]anthracene and Dibenzo[a,l]tetracene-Based Macrocycles." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/9xptzc.

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28

"Synthetic study of 1,2:8,9-dibenzo [2,2] metacyclophane." Chinese University of Hong Kong, 1987. http://library.cuhk.edu.hk/record=b5885832.

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29

"Synthesis and conformational behavior of dibenzo[2.2]metaparacyclophanediene." Chinese University of Hong Kong, 1988. http://library.cuhk.edu.hk/record=b5885976.

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30

Hsiao, Yung-Chun, and 蕭詠駿. "Health risk assessment of school-age children exposure to polybrominated dibenzo-p-dioxins/dibenzo furans via ingestion of classroom floor dust." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/09957244765389639125.

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碩士<br>國立屏東科技大學<br>環境工程與科學系所<br>104<br>Polybrominated dibenzo-p-dioxins/furans (PBDD/Fs) are ubiquitous and persistent environmental contaminants which are highly associated with brominated flame retardants (BFRs). Polybrominated diphenyl ethers (PBDEs) are a class of BFRs which widely used in commercial BFRs products including Penta-, Octa, Deca-mixtures. Previous study demonstrated PBDEs as a precursor of PBDD/Fs and pyrolysis of some commercial BFRs have led to the formation and release of PBDD/Fs. Dust is an important sample of human non-dietary exposure to PBDD/Fs, especially for children.

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31

"Synthesis of Dibenzo [2.2] paracyclophane and its related compounds." Chinese University of Hong Kong, 1987. http://library.cuhk.edu.hk/record=b5885801.

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32

Servos, Mark Roy. "Fate and bioavailability of polychlorinated dibenzo-p-dioxins in aquatic environments." 1988. http://hdl.handle.net/1993/16804.

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33

Lin, Chih-Han, and 林峙翰. "Synthesis of Linear Polycyclic Aromatic Hydrocarbons : Dibenzo[a.h]anthracene and derivatives." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/39405862254010015316.

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34

Su, You-lou, and 蘇育樓. "Synthesis of New Dibenzo[a,c]phenazine Discotic Liquid Crystal (III)." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/32418140760817146861.

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碩士<br>國立中山大學<br>化學系研究所<br>97<br>In our laboratory, we using simple synthetic methods to synthesize one series of amphiphilic discotic liquid crystal which has the dipole-dipole forces. We not only research the effect about the length of hydrophilic chain, but also explore the arrangement of this series through some cross-comparison.

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35

Hsu, Jan-teng, and 許展騰. "Synthesis of New Dibenzo[a,c]phenazine Discotic Liquid Crystal (II)." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/43728900733468368331.

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碩士<br>國立中山大學<br>化學系研究所<br>97<br>Because of the unique physical properties of liquid crystal molecules, such as: light, electricity, magnetic anisotropy, they exhibit different values, the most known current application on displays in our life. As the liquid crystal molecules can be modified through the functional groups, thereby affecting its physical properties, it caused great interests in synthetic chemists. In this thesis, we synthesized liquid crystal based on dibezo[a,c]phenazine core and the dioxole skeleton was also induced into dove-tail alkyl chain functional group surrounding the ce

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36

Chou, I.-Cheng, and 周宜成. "Assessment of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans Detection by Bioassay." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/68505963875309748552.

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博士<br>國立成功大學<br>環境工程學系碩博士班<br>97<br>The dioxin-like compounds are one of the most hazardous material groups in the world. Traditional chemical analysis methods (e.g., HRGC/HRMS and HRGC/LRMS) are time-consuming and costly for these compounds. Thus, the major aim of this study is to build a rapid and less-cost bioassay method. The Xenobiotic Detection Systems - chemical activated luciferase gene expression (CALUX) bioassay was thus employed in this study for detecting dioxin-like compunds. The dissertation is mainly concerned with three issues: 1) a review of the bioassay literature; 2) bui

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Huang, Jia-yu, and 黃嘉瑜. "Mesogenic Properties of Mono, Di, Tri-functionalized Dibenzo[a,c]phenazine." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/03327700534487027256.

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碩士<br>國立中山大學<br>化學系研究所<br>94<br>We hope to achieve the goal of improving molecule nature of the liquid crystal by change the functional group or the symmetry of the molecule. In the thesis, the derivatives of dibenzophenazine are synthesized and their mesogenic properties are investigated. Polarised optical microscopy (POM) and differential scanning calorimetry (DSC) studies show all these compounds to exhibit a very wide mesophase range. These mesophases are identified as columnar hexagonal phases by X-ray diffraction (XRD).

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38

Yu-TingWang and 王毓婷. "Synthesis and Properties of Picene and Dibenzo[a,l]tetracene Derivatives." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/hx62q4.

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碩士<br>國立成功大學<br>化學系<br>105<br>Part 1: Picene Derivatives –Synthesis and Properties Polyaromatic compounds have an inevitable role in the material science, and among the picene compounds attract the great interest due to its numerous applications in material applications. In this research work, we have developed a viable synthetic strategy to picene derivatives. This newly developed methodology is entirely different from its predecessors and employed under mild reaction conditions. The notable features of this method include operationally simple reaction conditions, high yields and scalable to

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Liu, Chung-Kun, and 劉仲堃. "Concentrations of polybrominated diphenyl ethers (PBDEs), polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs) and polybrominated dibenzo-p-dioxins/dibenzofurans (PBDD/Fs) in breast milk in Kao-Ping areas." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/ycatb8.

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碩士<br>國立屏東科技大學<br>環境工程與科學系所<br>105<br>Persistent organic pollutants (POPs) includes the polybrominated diphenyl ethers (PBDEs), polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), and polybrominated dibenzo-p-dioxins and dibenzofurans (PBDD/Fs) are known to have characteristics such as high fat solubility, low volatility, highly persistent to degradation, and can bioaccumulate into our body as it was observed through the food chain which can result to a negative impact to the human health. Through this study, it aims to investigate the association between the levels of PBDEs, PCDD/F

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Hau-YuFang and 方浩羽. "Nickel-Catalyzed Cyclodimerization:Synthesis and Application of Annelated Dibenzo[de,mn]naphthacene derivatives." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/754jdw.

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碩士<br>國立成功大學<br>化學系碩博士班<br>101<br>Dibenzo[de,mn]naphthacene annelated derivatives has been generated by nickel-catalyzed cyclodimerization. These structure which has been comfirmed by X-ray single-crystal diffraction analysis is non-planar and twist angle about 43.8-66.6o. The bond length and bond alternation in the crystal structures and HOMA theoretical calculations reveal that the central two six-membered rings lack aromaticity. Systematic studies of reaction conditions reveal that nickel-catalyst, the amount of zinc powder, slovent and temperature all play key roles in this reaction. The r

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Wu, Yu Jen, and 吳侑任. "Synthesis of new Dibenzo[a,c]phenazine acid derivative discotic liquid crystal." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/6z3wt4.

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碩士<br>國立中山大學<br>化學系研究所<br>102<br>We have synthesized the derivative of dibenzo[a,c]phenazine acid as a exchange form acid to amide. In order to discuss the difference between the presence of the hydrogen bonding interaction, POM, DSC, and XRD are used to confirm the self-assembly packing of the derivatives. In addition, we make use of dibenzo[a,c]phenazine acid and some certain kinds of amine to form ionic liquid cyrstal, and the properties of ionic bonds that influence self-assemble packing are also mentioned in this thesis as well.

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Lo, Chien-Kuang, and 駱黔光. "Characteristics of Polychlorinated Dibenzo-p-Dixoins and Dibenzofurans in the Rural Environment." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/27545721547325428719.

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碩士<br>國立屏東科技大學<br>環境工程與科學系<br>94<br>This study investigated the Dioxin/Furan (PCDD/Fs) concentrations in the vicinity of an incinerator being constructed in Taiwan. Four sampling sites with maximum ground surface concentrations downwind from the incinerator were selected using a dispersion model to collect air, soil, and vegetation samples. The samples were analyzed using high resolution Gas Chromatographer (HP6970) connected with a high resolution Mass Spectrometer (UK). The average PCDD/Fs I-TEQ concentration of air samples was 0.0377 pg I-TEQ/Nm3 (Range: 0.0207–0.0495 pg I-TEQ/Nm3), with

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43

Chieh-NingFeng and 馮玠寧. "Phenanthrenes, [8]Circulenes, and Dibenzo[n]helicenes―Syntheses, Structural Analyses, and Properties." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/77887075872827767540.

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博士<br>國立成功大學<br>化學系<br>104<br>This dissertation presents recent efforts to synthesize various important polyarenes, such as phenanthrene derivatives, persubstituted [8]circulenes and their fragments (63 and 93-96), and dibenzo[n]helicenes (123, 129, and 135), under palladium-catalyzed conditions using haloarenes as starting materials. Alkyne is a useful building block and synthon in the extension of an aromatic system. The palladium-catalyzed annulations of 2-halobiphenyls with alkynes efficiently yielded phenanthrene derivatives. These newly investigated palladium-catalyzed conditions have a

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Chun-YiKo та 柯君宜. "Synthesis, Structural Analysis and Properties of π-Extended Dibenzo[a,e]pentalenes". Thesis, 2017. http://ndltd.ncl.edu.tw/handle/tytj9z.

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45

CHUANG, I.-PING, and 莊懿玶. "Distribution of polychlorinated dibenzo-p-dioxinsand dibenzofurans in municipal solid waste incinerators." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/dqgb8r.

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碩士<br>正修科技大學<br>營建工程研究所<br>106<br>This study investigated the characteristics of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in the ashes of different units in three municipal solid waste incinerators (MSWIs). The units of MSWIs included combustion chamber, superheater, economizer, semi-dry scrubber, fabric filter, and ash storage pit. The PCDD/F TEQ contents in the ashes of different units of MSWIs were, in order, fabric filter (3.40 ng I-TEQ/g)> fly-ash storage pit (1.25 ng I-TEQ/g) > economizer (0.459 ng I-TEQ/g) > dry scrubber (0.185 ng I-TEQ/g) > superheater (0.0446 ng I

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Hung, Chia-Yang, and 洪嘉陽. "Characteristics of Polychlorinated Dibenzo-p-dioxins∕Dibenzofurans in the Leaves of Ficus Species." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/22762049533421139961.

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碩士<br>國立成功大學<br>環境工程學系碩博士班<br>91<br>This study investigates the characteristics of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in leaves of the Ficus species in rural areas, Taiwan. The main objective of this study is to evaluate the transfer of atmospheric compounds into leaves. Additionally, a model to estimate the leaf content is developed and its results compared with the actual leaf content in Ficus species. Furthemore, the total degradation coefficient and half-life of PCDD/Fs in Ficus is estimated. The following conclusions are drawn. 1. The PCDD/Fs concentration in

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Hsieh, Yen-Kung, and 謝炎恭. "Investigation on Polychlorinated Dibenzo-p-dioxins/Dibenzofurans in Ambient Air and Environmental medium." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/78748539997785106157.

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碩士<br>國立成功大學<br>環境工程學系碩博士班<br>93<br>The mean PCDD/Fs concentration in 8 ambient air samples in the vicinity of PI municipal solid waste incinerator (MSWI) is 0.069 pg-I-TEQ/Nm3. Compared with ambient air concentration of Japan regulation level (0.6 pg-I-TEQ/Nm3), the ambient air concentration of the PI incinerator is lower than Japanese regulation level. The mean PCDD/Fs composition in vegetation and soil samples in the vicinity of PI MSWI is 2.259 and 1.007 ng-I-TEQ/kg-d.w., respectively. In this study, even the soil from site C, which has the highest PCDD/Fs level, can still be freely utiliz

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Chu, Fang-yu, and 褚芳譽. "Synthesis of Fluorophilic Dibenzo[a, c]phenazine Discotic Liquid Crystal and Supermolecular Assembly." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/37149379924170751707.

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碩士<br>國立中山大學<br>化學系研究所<br>104<br>We synthesize dibenzo[a,c]phenazine discotic liquid crystal possessing fluoroalkylated side chains. The first synthesis part is catechol modified by fluoroalkylated chains through the following sequence of reactions: (i) radical reaction of but-3-enol with fluoroalkyl iodide (ii) elimination-reduction of the iodo-with DBU (iii) nitration with the fluoroalkylated-oxybenzene. Next part is a condensation of 4,5-diaminobenzenes with tetraalkoxyphenanthrene-9,10-dione. A series of compounds exhibit mesomorphic properties determined by polarized optical microscopy (P

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Chan, Ya-chi, and 詹雅琪. "Steric Interaction for Tuning Mesomorphic Properties of Dimeric Dibenzo[a,c]phenazine Discogens." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/87473628631469111102.

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碩士<br>國立中山大學<br>化學系研究所<br>100<br>The dibenzo[a,c]phenazine dimers with the branched alkoxy chain of disc were synthesized simplely. We now show on the synthesis of this series of compounds which were found to exhibit mesomorphism as determined by polarized optical microscopy (POM), differential scanning calorimetry (DSC) and X-ray diffraction (XRD). These materials showed polymeso- morphism and glass formation. In our investigations, we also observed that the effects of branched chains on dibenzo[a,c]phenazine enhanced columnar liquid crystal phase stability indeed.

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Lee, Chia-Na, and 李佳娜. "Polythiophene-Based Conjugated Copolymers Comprising Dibenzo[d]thiazol-2-ylmethane Pendant for Photovoltaic Applications." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/32032722653877095868.

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碩士<br>國立中興大學<br>化學工程學系所<br>101<br>A series of low-band gap of P-type conjugated polymers via Stille coupling reactions. The main chain is selected containing alkyl-substituted conjugated thiophene and fluorene, and side chain import electron- withdrawing group Dibenzo[d]thiazol 2-ylmethane（DBT）. Comparative conjugated different stability differences between the thiophene and fluorene. All polymers exhibited good solubility in common organic solvents, and have good thermal stability. A red-shift of UV-vis absorption band was observed for the polythiophene, and successfully control the HOMO ener

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