From oligomers to polymer: Convergence in the HOMO-LUMO gaps of conjugated oligomers

被引:309
作者
Zade, Sanjio S. [1 ]
Bendikov, Michael [1 ]
机构
[1] Weizmann Inst Sci, Dept Organ Chem, IL-76100 Rehovot, Israel
关键词
D O I
10.1021/ol062030y
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Extrapolation of HOMO-LUMO gaps for pi-conjugated oligomers at the B3LYP/6-31G(d) level of theory predict accurately (within 0.1-0.2 eV) the band gaps of conjugated polymers only when long (at least 20-mer) pi-conjugated oligomers are used for the extrapolation.
引用
收藏
页码:5243 / 5246
页数:4
相关论文
共 45 条
[31]   Introduction to organic thin film transistors and design of n-channel organic semiconductors [J].
Newman, CR ;
Frisbie, CD ;
da Silva, DA ;
Brédas, JL ;
Ewbank, PC ;
Mann, KR .
CHEMISTRY OF MATERIALS, 2004, 16 (23) :4436-4451
[32]   Synthesis, characterization and electrochemical properties of polybiselenophene [J].
Ong, TT ;
Ng, SC ;
Chan, HSO .
POLYMER, 2003, 44 (19) :5597-5603
[33]  
Parr R.G., 1989, DENSITY FUNCTIONAL T
[34]   Light-emitting polythiophenes [J].
Perepichka, IF ;
Perepichka, DF ;
Meng, H ;
Wudl, F .
ADVANCED MATERIALS, 2005, 17 (19) :2281-2305
[35]   Importance of chain-chain interactions on the band gap of trans-polyacetylene as predicted by second-order perturbation theory [J].
Pino, R ;
Scuseria, GE .
JOURNAL OF CHEMICAL PHYSICS, 2004, 121 (16) :8113-8119
[36]  
Salzner U, 1997, J COMPUT CHEM, V18, P1943, DOI 10.1002/(SICI)1096-987X(19971130)18:15<1943::AID-JCC9>3.0.CO
[37]  
2-O
[38]   Comparison of geometries and electronic structures of polyacetylene, polyborole, polycyclopentadiene, polypyrrole, polyfuran, polysilole, polyphosphole, polythiophene, polyselenophene and polytellurophene [J].
Salzner, U ;
Lagowski, JB ;
Pickup, PG ;
Poirier, RA .
SYNTHETIC METALS, 1998, 96 (03) :177-189
[39]   Accurate method for obtaining band gaps in conducting polymers using a DFT/hybrid approach [J].
Salzner, U ;
Pickup, PG ;
Poirier, RA ;
Lagowski, JB .
JOURNAL OF PHYSICAL CHEMISTRY A, 1998, 102 (15) :2572-2578
[40]   SOLID-STATE SYNTHESIS OF HIGHLY CONDUCTING POLYPHENYLENE FROM CRYSTALLINE OLIGOMERS [J].
SHACKLETTE, LW ;
ECKHARDT, H ;
CHANCE, RR ;
MILLER, GG ;
IVORY, DM ;
BAUGHMAN, RH .
JOURNAL OF CHEMICAL PHYSICS, 1980, 73 (08) :4098-4102