Results 71 to 80 of about 12,222 (276)

Amorphous 2,3-Substituted Thiophenes:  Potential Electroluminescent Materials

open access: yes, 2016
Amorphous 2,3-disubstituted thiophenes and 2,3,5-trisubstituted thiophenes which contain two and four peripheral triarylamine moieties, respectively, have been synthesized and characterized.
Yu-Tai Tao (1433704)   +5 more
core   +1 more source

Printed SWCNT‐Based p–n Junction Thin‐Film Near‐Infrared Photoresistors Enabled by a Sustainable Furan‐Derived π‐Conjugated Polymer

open access: yesAdvanced Materials Technologies, EarlyView.
A sustainable polymer–carbon nanotube bilayer enables efficient near‐infrared photodetection in a simple lateral planar p–n junction thin‐film architecture. Thermal side‐chain cleavage enhances interfacial coupling, shifts the dominant photoresponse from 800 to 1000 nm, and substantially improves device performance.
Jenner H. L. Ngai   +3 more
wiley   +1 more source

Photosensitizing thiophenes from the Tageteae

open access: yes, 1981
Two separate aspects involving the thiophenes of the Tageteae (Asteraceae) were investigated. The first concerned the distribution of four thiophenes in Tagetes patula L. which were examined by high pressure liquid chromatography (HPLC).
Downum, Kelsey
core   +1 more source

Catalyst‐Controlled Regiodivergent C−H Alkynylation of Thiophenes** [PDF]

open access: yes, 2020
Alkynes are highly attractive motifs in organic synthesis due to their presence in natural products and bioactive molecules as well as their versatility in a plethora of subsequent transformations. A common procedure to insert alkynes into hetero(arenes),
Manuel van Gemmeren   +3 more
core   +2 more sources

Laser‐Induced Local De‐Doping in Organic Semiconductors

open access: yesAdvanced Materials Technologies, EarlyView.
The polymer PBTTT‐C14 doped with the small molecule acceptor F4TCNQ is considered as a benchmark material system. Mask‐free, microscale patterning of the doping level via laser‐induced heating and sublimation of dopant molecules is shown. Controlling laser irradiance and swath spacing allows dopant level control with laser‐limited resolution, opening ...
Christian Rainer   +5 more
wiley   +1 more source

Hindered aryl bromides for regioselective palladium-catalysed direct arylation at less favourable C5-carbon of 3-substituted thiophenes

open access: yesBeilstein Journal of Organic Chemistry, 2014
The use of the congested aryl bromide 2-bromo-1,3-dichlorobenzene as coupling partner allows to modify the regioselectivity of the arylation of 3-substituted thiophene derivatives in favour of carbon C5.
Rongwei Jin   +2 more
doaj   +1 more source

Palladium-Catalyzed Multiple Arylation of Thiophenes

open access: yes, 2016
Secondary 2-thiophenecarboxamides efficiently undergo unique triarylation accompanied by formal decarbamoylation under palladium catalysis.
Masakatsu Nomura (2706712)   +3 more
core   +1 more source

A Molecular Engineering Strategy to Fine‐Tune Phototoxicity of AIE Probes for Super‐Resolution Imaging of Mitochondrial Cristae Dynamics

open access: yesAdvanced Science, EarlyView.
Regulation of molecular packing, phototoxicity, and ROS output of AIE photosensitizers is achieved through carboxylation and alkyl‐chain‐length tuning. The probe designed via this strategy enables super‐resolution visualization of inner‐mitochondrial‐membrane cristae dynamics under controlled oxidative stress, and fluorescence‐lifetime imaging of ...
Kongqi Chen   +5 more
wiley   +1 more source

Rh(II)-mediated domino [4 + 1]-annulation of α-cyanothioacetamides using diazoesters: A new entry for the synthesis of multisubstituted thiophenes

open access: yesBeilstein Journal of Organic Chemistry, 2017
A new approach towards the synthesis of multisubstituted thiophenes is elaborated based on Rh(II)-catalyzed domino reactions of acyclic diazoesters with α-cyanothioacetamides.
Jury J. Medvedev   +5 more
doaj   +1 more source

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