Synthesis and Electronic Properties of Conjugated Pentacene Dimers
摘要:
Conjugated pentacene dimers 1-3 were synthesized in two steps from readily available precursors. Noteworthy is the initial step, which assembles five independent fragments to form the carbon-rich molecular framework. Solution-cast films of these materials are air stable. Photocurrent measurements for solution-deposited thin films show that dimer 3 exhibits photoconductive gain >10.
Synthesis and Electronic Properties of Conjugated Pentacene Dimers
作者:Dan Lehnherr、Jianbo Gao、Frank A. Hegmann、Rik R. Tykwinski
DOI:10.1021/ol801886h
日期:2008.11.6
Conjugated pentacene dimers 1-3 were synthesized in two steps from readily available precursors. Noteworthy is the initial step, which assembles five independent fragments to form the carbon-rich molecular framework. Solution-cast films of these materials are air stable. Photocurrent measurements for solution-deposited thin films show that dimer 3 exhibits photoconductive gain >10.
Mechanical vs Electronic Strain: Oval-Shaped Alkynyl-Pt(II)-Phosphine Macrocycles
作者:Jan Plutnar、Cecile Givelet、Cyprien Lemouchi、Jana Jaklová Dytrtová、Ivana Císařová、Simon J. Teat、Josef Michl
DOI:10.1021/acs.organomet.9b00633
日期:2019.12.23
Pyridine-terminated molecularrods and either (i) the cis-(dppp)(I)Pt(C≡C-triptycene-C≡C)Pt(I)(dppp) rod or (ii) the trans-(PEt3)2(I)Pt(C≡C-biphenyl-C≡C)Pt(I)(PEt3)2 rod assemble into macrocycles, characterized by NMR, ESI-IMS, and in two cases also single-crystal X-ray diffraction. The former form rectangles with bidentate phosphine-containing cis-coordinated Pt(II)-alkyne corners. In the latter,