1. Who gets banned from Twitter?
2. The economics of solar panels.
3. The war against dollar stores.
4. reasons for typing in lower case
5. Robin Hanson overlooks Kg6. And Kg8.
6. Compare transit levels across cities.
7. India’s counterforce temptations with Pakistan (very important reading right now).
The post Sunday assorted links appeared first on Marginal REVOLUTION.
Benzophenone resurrected: The inherent reactivity of benzophenone upon photochemical excitation is used for the aliphatic C−H arylation reaction. The conditions are tolerant to a broad range of functional groups. Mechanistic experiments shed light on the dual role of the new photocatalyst of the metallaphotoredox family.
A dual catalytic protocol for the direct arylation of non‐activated C(sp3)−H bonds has been developed. Upon photochemical excitation, the excited triplet state of a diaryl ketone photosensitizer abstracts a hydrogen atom from an aliphatic C−H bond. This inherent reactivity was exploited for the generation of benzylic radicals which subsequently enter a nickel catalytic cycle, accomplishing the benzylic arylation.
It is astounding how strongly I agree with these rankings from Lucas Kwan Peterson at the LA Times. I know it’s fighting words to slag on In-N-Out, but their fries really are dreadful:
And bringing up the rear is In-N-Out. Before you tell me there’s a way to “hack” these fries, or somehow make them better, either by loading them with American cheese and secret sauce, or by ordering them well-done, I will grant this: It certainly doesn’t make the fries any worse. Just as dumping the fries into a dirt pile on the shoulder of a highway access road and running over that pile with my car would also probably not make the fries any worse.
The post Grandpa’s Couch (with Hot Paper Comics) appeared first on The Perry Bible Fellowship.
Hovertext:
Actually, the vast majority of early Internet time was spent in an AOL chatroom pretending to be a sexy vampire.
Organic solar cells achieve over 15% efficiency through the use of a copolymer donor, and simultaneously enhanced open‐circuit voltage and short‐circuit current density are obtained. High‐performance solar cells are adaptable for environment‐friendly solvents using a blade‐coating method, while showing better photostability than the corresponding ternary solar cells.
Ternary blending and copolymerization strategies have proven advantageous in boosting the photovoltaic performance of organic solar cells. Here, 15% efficiency solar cells using copolymerization donors are demonstrated, where the electron‐withdrawing unit, ester‐substituted thiophene, is incorporated into a PBDB‐TF polymer to downshift the molecular energy and broaden the absorption. Copolymer‐based solar cells suitable for large‐area devices can be fabricated by a blade‐coating method from a nonhalogen and nonaromatic solvent mixture. Although ternary solar cells can achieve comparable efficiencies, they are not suitable for environment‐friendly processing conditions and show relatively low photostability compared to copolymer‐based devices. These results not only demonstrate high‐efficiency organic photovoltaic cells via copolymerization strategies but also provide important insights into their applications in practical production.
