In heterogeneous catalysis, the catalyst is in a different phase from the reactants. category: catalyst-palladium, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 52409-22-0, name is Pd2(DBA)3. In an article£¬Which mentioned a new discovery about 52409-22-0
Regioisomerism of an alkyl-substituted bithiophene comonomer in (3: E,8 E)-3,8-bis(2-oxoindolin-3-ylidene)naphtho-[1,2- b:5,6- b ?]difuran-2,7(3 H,8 H)-dione (INDF)-based D-A polymers for organic thin film transistors
Two donor-acceptor (D-A) polymers based on (3E,8E)-3,8-bis(2-oxoindolin-3-ylidene)naphtha-[1,2-b:5,6-b?]difuran 2,7(3H,8H)-dione (INDF) and substituted regioisomeric bithiophene (BT) units with different side chain positions (head-to-head, HH, and tail-to-tail, TT) were synthesized. PINDFBT-(HH) achieved electron (mue) and hole (muh) mobilities as high as 0.33 cm2 V-1 s-1 and 0.15 cm2 V-1 s-1, respectively, while PINDFBT-(TT) showed an order of magnitude lower mobilities with mue of 0.07 cm2 V-1 s-1 and muh of 0.02 cm2 V-1 s-1. The distinctly different electrical performance of these two polymers originates from their different side chain placements on the bithiophene units and consequently different electronic structures, backbone coplanarity, chain packing, and thin film morphology. Our results showed that a bithiophene unit with an HH substitution pattern is much more favoured in terms of the charge transport property of the polymers.
I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 52409-22-0, help many people in the next few years.category: catalyst-palladium
Reference£º
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method