Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/36524
DC FieldValue
dc.titleNOVEL CHROMOPHORES BASED ON CLOSED-SHELL AND OPEN-SHELL POLYCYCLIC AROMATIC HYDROCARBONS
dc.contributor.authorZENG ZEBING
dc.date.accessioned2013-03-31T18:00:24Z
dc.date.available2013-03-31T18:00:24Z
dc.date.issued2012-08-03
dc.identifier.citationZENG ZEBING (2012-08-03). NOVEL CHROMOPHORES BASED ON CLOSED-SHELL AND OPEN-SHELL POLYCYCLIC AROMATIC HYDROCARBONS. ScholarBank@NUS Repository.
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/36524
dc.description.abstractThe thesis demonstrated the design and synthesis of novel chromophores based on functionalized polycyclic aromatic hydrocarbons (PAHs) and stable open-shell PAHs with tunable electronic ground state. Their promising properties and related applications were also investigated. For functionalized PAHs, the novel C3 symmetric hexa-peri-hexa benzocoronene chromophores (HBC-NO2, HBC-CN, HBC-CF3, and HBC-COOH) have been prepared for the first time. Remarkable two photon absorption responses and optical power limiting performances were achieved for octupolar HBC derivatives. All these disc-like molecules self-assembed into two-dimensional network at solid-liquid interface via dipole-dipole or hydrogen -bonding interactions. For open-shell PAHs, new stable benzannulated Chichibabin¿s hydrocarbons (1-CS and 2-OS) and quinoidal rylenes (Per-CN, 2Per-CN, QDTP and QDTQ) with tunable ground electronic state were successfully synthesized and their geometry in the ground state were investigated by various experiments. These work established a new approach to design stable open-shell PAHs and also provided reliable characterization methods.
dc.language.isoen
dc.subjectPolycyclic aromatic hydrocarbon, two photon absorption, octupolar chromophore, hexa-peri-hexabenzocoronene, quinoidal rylenes, Chichibabin’s hydrocarb
dc.typeThesis
dc.contributor.departmentCHEMISTRY
dc.contributor.supervisorWU JISHAN
dc.description.degreePh.D
dc.description.degreeconferredDOCTOR OF PHILOSOPHY
dc.identifier.isiutNOT_IN_WOS
Appears in Collections:Ph.D Theses (Open)

Show simple item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
ZengZB.pdf5.04 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

229
checked on May 22, 2019

Download(s)

99
checked on May 22, 2019

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.