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Supramolecular chemistry of function...

Eryazici, Ibrahim.

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Supramolecular chemistry of functionalized terpyridines.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Supramolecular chemistry of functionalized terpyridines./
作者:	Eryazici, Ibrahim.
面頁冊數:	309 p.
附註:	Adviser: George R. Newkome.
Contained By:	Dissertation Abstracts International68-12B.
標題:	Chemistry, Polymer. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3292831
ISBN:	9780549362470

Supramolecular chemistry of functionalized terpyridines.
Eryazici, Ibrahim.

Supramolecular chemistry of functionalized terpyridines. - 309 p.

Adviser: George R. Newkome.

Thesis (Ph.D.)--The University of Akron, 2007.

Highly ordered, regularly repeating molecular architectures, constructed via self-assembly techniques, have gained importance over the last three decades due to their potential utilitarian applications. A key construction strategy has relied on the synthesis of specific building blocks capable of forming "higher-ordered" stable structures that have useful properties that can be used as molecular and supramolecular devices. To this end, mono and bis(terpyridine) ligands have been widely used because of their well known photochemical and electronic properties, as well as their ability to facilitate directed, metal-mediated self-assembly. However, limited accessibility to unsymmetrically functionalized terpyridines has restricted their potential use in the construction of more complex infrastructures. For this purpose, methyl-, methoxycarbonyl- and cyano-substitution patterns on the 4,4''-positions of 4'-arylterpyridine were chosen since these functionalities afforded simple routes to a variety of useful substituted building blocks for higher-ordered supramacromolecular architectures. Single crystal X-ray studies of these terpyridines revealed that molecules of the diester terpyridine (approximately coplanar) are stacked by the overlap of the central pyridine rings in consecutive layers with mean interplanar distances of 3.4 A (pi--pi interactions) in the solid state. Moreover, functionalized bis(terpyridine) ligands were achieved via the Krohnke method and Pd(0) coupling strategy using either 1,3-toluenylbisboronic acid or 1,3-diethynyltoluene with meta- or para-I or Br-phenylterpyridines.

ISBN: 9780549362470Subjects--Topical Terms:

1018428
Chemistry, Polymer.

Supramolecular chemistry of functionalized terpyridines.
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100 1 $a Eryazici, Ibrahim. $3 1280765
245 1 0 $a Supramolecular chemistry of functionalized terpyridines.
300 $a 309 p.
500 $a Adviser: George R. Newkome.
500 $a Source: Dissertation Abstracts International, Volume: 68-12, Section: B, page: 8055.
502 $a Thesis (Ph.D.)--The University of Akron, 2007.
520 $a Highly ordered, regularly repeating molecular architectures, constructed via self-assembly techniques, have gained importance over the last three decades due to their potential utilitarian applications. A key construction strategy has relied on the synthesis of specific building blocks capable of forming "higher-ordered" stable structures that have useful properties that can be used as molecular and supramolecular devices. To this end, mono and bis(terpyridine) ligands have been widely used because of their well known photochemical and electronic properties, as well as their ability to facilitate directed, metal-mediated self-assembly. However, limited accessibility to unsymmetrically functionalized terpyridines has restricted their potential use in the construction of more complex infrastructures. For this purpose, methyl-, methoxycarbonyl- and cyano-substitution patterns on the 4,4''-positions of 4'-arylterpyridine were chosen since these functionalities afforded simple routes to a variety of useful substituted building blocks for higher-ordered supramacromolecular architectures. Single crystal X-ray studies of these terpyridines revealed that molecules of the diester terpyridine (approximately coplanar) are stacked by the overlap of the central pyridine rings in consecutive layers with mean interplanar distances of 3.4 A (pi--pi interactions) in the solid state. Moreover, functionalized bis(terpyridine) ligands were achieved via the Krohnke method and Pd(0) coupling strategy using either 1,3-toluenylbisboronic acid or 1,3-diethynyltoluene with meta- or para-I or Br-phenylterpyridines.
520 $a A dinuclear tetracationic Fe(II) complex was prepared via metal-directed self-assembly. The chair-like molecular architecture was primarily characterized by X-ray crystallography, mass spectroscopy (ESI-MS), as well as 1 H NMR, UV-vis, and CV experiments. Crystal packing of this metallomacrocycle revealed that it formed channels that encapsulated water and MeCN. The low temperature 1H NMR studies suggested that tpy-Fe-tpy moieties in the dimer were interlocked and resembled a spur gear relationship. Surprisingly, dinuclear and trinuclear metallomacrocycles were formed when 1,3- bis(2,2';6',2''-terpyridine-4'-phen-3-ylethynyl)toluene was treated with equimolar amount of Ru(II) that was confirmed by MALDI-TOF mass and NMR spectroscopy.
520 $a The construction of a heteronuclear (Ru4Fe2) hexameric metallomacrocycle with methyl- and carbonyl-functionalized bis(terpyridyl) moieties was achieved by Pd(0) coupling strategy for potential solar cell applications and supramolecular aggregation of the resulting hexamers through H-bonding. Carboxylic acid functionalized mono- and dinuclear homo- and heteroleptic Ru(II) precursors were also prepared for the same purposes. The single crystal X-ray structure of a homoleptic Ru(II) complex with tetra-ethoxycarbonyl and di(iodo) groups revealed short iodo-carbonyl interactions.
590 $a School code: 0003.
650 4 $a Chemistry, Polymer. $3 1018428
690 $a 0495
710 2 $a The University of Akron. $3 1018399
773 0 $t Dissertation Abstracts International $g 68-12B.
790 $a 0003
790 1 0 $a Newkome, George R., $e advisor
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3292831