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SUMMARY:Perylene-Based Poly(N-Heterocycles):  Organic Semiconductors\, Bio
 logical Fluorescence Probes and Building Blocks for Molecular Surface Netw
 orks - Professor Lutz Gade\, Heidelberg University
DTSTART:20180301T140000Z
DTEND:20180301T150000Z
UID:TALK94501@talks.cam.ac.uk
CONTACT:Sharon Connor
DESCRIPTION:\nOrganic semiconductors are key components of numerous electr
 onic and optoelectronic devices for a wide range of applications such as l
 ight-emitting diodes\, photovoltaic cells and organic thin-film transistor
 s (TFTs). Thus the search for new organic materials which serve this purpo
 se is of considerable current interest. Several years ago\, we developed a
 n efficient metal-induced synthesis of 4\,9-diamino-3\,10-perylenequinone 
 diimine (DPDI) by oxidative coupling of two 1\,8-diaminonaphthalene units.
  This functionalized perylene may be converted to tetraazaperopyrene (TAPP
 ) as well as a range of derivatives which have proved to possess considera
 ble potential as organic n-channel semiconductors.\n\nWater soluble TAPP d
 erivatives have also been found to possess considerable potential as biolo
 gical fluorescence markers\, with relatively low cytotoxicity\, specifical
 ly targeting chromatides.\n\nFinally\, these heteropolycycles have proved 
 to display an interesting surface chemistry when deposited on well defined
  faces of coinage metal single crystals. The formation of stable porous su
 rface networks (and their exciting physical properties)\, including the co
 valent coupling of the polycycles to give oligomers or polymers\, have bee
 n investigated in a series of studies.\n
LOCATION:Wolfson Lecture Theatre\,  Department of Chemistry
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