Synthesis, physical properties and applications of bisanthene based near infrared dyes and semiconductors

... VIII LIST OF TABLES Table 2.1 Summary of photophysical and electrochemical properties of compounds 24, 2-5 and 2-6…………………… ………………………………………………….35 Table 3.1 Summary of photophysical and electrochemical ... meso-Substituted Bisanthenes as Soluble and Stable NIR Dyes 2.1 Introduction Near infrared (NIR) dyes1 with absorption and/ or emission in the spectral range of 7...

Ngày tải lên: 10/09/2015, 08:38

... Hz, 4H), 2. 73 -2. 83 (m, 4H), 1.18 (d, J = 6.7 Hz, 12H) 13C NMR (CDCl3, 125 MHz) δ: 163.6, 145.7, 136.8, 1 32. 6, 131 .2, 129 . 62, 129 .6, 127 .8, 126 .6, 124 .2, 124 .1, 124 .07, 122 .5, 122 .4, 29 .7, 24 .0 HR-MS ... Hz, 2H), 2. 61 -2. 71 (m, 2H), 1.14 (d, J = 6.9 Hz, 12H) 13 C NMR (CDCl3, 75 MHz) δ: 163 .2, 145.5, 136.3, 1 32. 0, 129 .8, 128 .6, 124 .1, 123 .1, 29 .2, 23 .9 HR-MS (...

Ngày tải lên: 10/09/2015, 09:28

... biradical ground state 1. 1 .1 PHs with a closed-shell ground state 1. 1.2 PHs with an open-shell ground state 1. 2 Overview on zethrene- based PHs 14 1. 2 .1 Synthesis and reactivity for zethrene- based ... properties of compounds 2-3 and 4-3 Table 5 .1 Photophysical and electrochemical properties of compounds 5 -1 and 5-2 ix List of Figures Figure 1. 1 Ex...

Ngày tải lên: 10/09/2015, 09:30

... the dyes in different media can be proposed Near Infrared Dyes ( NIR ) for Bioimaging: In recent years, fluorescence imaging using Near Infrared dyes has attracted much attention as it affords ... and polarization.11 For fluorescence -based bioimaging, the optimum wavelength for excitation and emission ranges from 650–900 nm.12 This range of wavelength is called Near...

Ngày tải lên: 16/10/2015, 11:58

... possibilities of fabricating polymer micro- and nanostructures in easy and costeffective ways The various applications demonstrated here showed great potential of polymer- based micro- and nanostructures ... creation of precisely-located polymer micro- and nanostructures that cover large surface areas We examined the technical merits of these methods and ex...

Ngày tải lên: 10/09/2015, 09:30

... DOCTOR OF PHILOSOPHY DEPARTMENT OF CHEMISTRY NATIONAL UNIVERSITY OF SINGAPORE 2010 SYNTHESIS, CHARACTERIZATION AND POTENTIAL APPLICATIONS OF PYRENE BASED ORGANIC MATERIALS Abstract Fluorescent pyrene ... Types of Pyrene Polymers 17 Applications of Pyrene Derivatives 18 Applications in Organic Electronics 19 1.6.1.1 Pyrene Based LCDs 19 1.6.1.2 Py...

Ngày tải lên: 11/09/2015, 10:19

... well as the effect of these lipids on the physical properties of the membrane Effect of KL4 on the lipid order of surfactant-like membranes To evaluate KL4 effects on the lipid order of surfactant-like ... bilayers, and their dependence on calcium Therefore, the objectives of this study were to analyze (a) the effect of KL4 on the physical pr...

Ngày tải lên: 30/03/2014, 11:20

... observation Optical Properties and Photocatalytic Activity of 1D CdS@ZnS Core-Shell Nanocomposites The optical properties of 1D CdS@ZnS core-shell nanocomposites were measured using UV-vis absorption and ... spectrophotometer and WGY-10 spectrofluorimeter Photocatalytic Decomposition of MB and 4CP To evaluate the photocatalytic activity of the synthesized...

Ngày tải lên: 22/06/2014, 01:20

... oxide -based functional materials has been observed and continues to expand due to their unique and novel applications Among these functional oxides, zinc oxide (ZnO) has drawn considerable attention ... display applications such as LED As ZnO is an economic, non-toxic and environment-friendly material, the realization of ZnO- based light-emission device may have a significan...

Ngày tải lên: 09/09/2015, 10:15

... 2.051 (4) Ni(1) -N( 1) 2.0 84( 4) Ni(1)-O(1) 2.089 (4) Ni(2)-O( 14) 2.039 (4) Ni(2)-O(7) 2. 042 (4) Ni(2)-O(5)a 2. 048 (4) Ni(2)-O(13) 2.070(3) Ni(2)-O(6) 2.101(3) O(5)-Ni(2)b 2. 048 (4) O( 14) -Ni(2)-O(5)a 89. 4( 2) ... oxygen atom (Ni(1)-O(2), 2. 047 (4) Å and Ni(2)O(7), 2. 042 (4) Å) in a facial manner, two aqua ligands and another carboxylate oxygen from the neighboring molecule Sel...

Ngày tải lên: 15/09/2015, 17:10

... C12H17NNiO4S C22H2 6N4 NiO8 f.w 35 0.81 38 1.84 31 3. 93 330 .04 533 .18 T/K 22 3( 2) 22 3( 2) 22 3( 2) 22 3( 2) 22 3( 2) λ/Å 0.710 73 Å 0.710 73 0.710 73 0.710 73 0.710 73 Crystal system Monoclinic Monoclinic Orthorhombic ... improving the structural insights in terms of hydrogen bonding tendencies of the amino acid components 3- 5 Experimental 3- 5-1 Synthesis of ligan...

Ngày tải lên: 15/09/2015, 17:10

... noradrenaline and dopa.8 Oxidation of mono- and diphenol-containing neurotransmitters such as dopamine, epinephrine, norepinephrine and serotonin have been found associated with the Fe(II) and Cu(II) ... hydrogen bonds generate 3D hydrogen bonded network connectivity in IIA-4 Hydrogen bond distances and angles are shown in Table 2- 8 A portion of the hydrogen bonding connecti...

Ngày tải lên: 15/09/2015, 17:10

... acid H2Saes N- (2- hydroxysalicylidene)-aminoethanesulfonic acid H2Sam N- (2- hydroxybenzyl)- aminomethanesulfonic acid H2Sae N- (2- hydroxybenzyl)- aminoethanesulfonic acid H2Sas N -(2- hydroxybenzyl)- L-aspartic ... salicylaldehyde and amino acids have focused upon the tridentate ligand binding mode of these ligands. 18-19 Transition metal complexes of...

Ngày tải lên: 15/09/2015, 17:10

... studies which examined the physical properties and none of these had examined the physical properties of WMTA Studies comparing the physical properties and sealing ability of MTA and PC are still not ... of White MTA, ProRoot MTA, White Portland Cement and Ordinary Portland cement To compare the compressive strength of White MTA, ProRoot...

Ngày tải lên: 03/10/2015, 20:59