Buzzetti, Luca Puriņš, Mikus Greenwood, Phillip D. G. Waser, Jerome
Published in
Journal of the American Chemical Society
Chiral auxiliaries and asymmetric catalysis are the workhorses of enantioselective transformations, but they still remain limited in terms of either efficiency or generality. Herein, we present an alternative strategy for controlling the stereoselectivity of chemical reactions. Asymmetric catalysis is used to install a transient chiral auxiliary st...
Srnec, Martin Iyer, Shyam R. Dassama, Laura M. K. Park, Kiyoung Wong, Shaun D. Sutherlin, Kyle D. Yoda, Yoshitaka Kobayashi, Yasuhiro Kurokuzu, Masayuki Saito, Makina
...
Published in
Journal of the American Chemical Society
Hou, Yali Zhang, Zeyuan Lu, Shuai Yuan, Jun Zhu, Qiangyu Chen, Wei-Peng Ling, Sanliang Li, Xiaopeng Zheng, Yan-Zhen Zhu, Kelong
...
Published in
Journal of the American Chemical Society
Here we report two highly emissive perylene diimide (PDI)-based metallacages and explore their complexation with polycyclic aromatic hydrocarbons, such as pyrene, triphenylene, and perylene. The fluorescence quantum yields of metallacages exceed 90% and their binding constants with perylene can reach as high as 2.41 × 104 M-1 in acetonitrile. These...
Howitz, William J Wierzbicki, Michał Cabanela, Rudy William Saliba, Cindy Motavalli, Ariana Tran, Ngoctran Nowick, James S
Published in
Journal of the American Chemical Society
Zhang, Zhenzhen Li, Yawen Cai, Guilong Zhang, Yihang Lu, Xinhui Lin, Yuze
Published in
Journal of the American Chemical Society
Typical organic photovoltaic materials show high Urbach energies (ca. 25-50 meV), which is considerably higher than those of their inorganic counterparts and limits further improvement in the device efficiency of organic solar cells (OSCs). In this study, we introduce a facile method of selenium substitution to reduce the Urbach energy of organic p...
Hu, Yun Roberts, Jessica M Kilgore, Henry R Mat Lani, Amirah S Raines, Ronald T Schomaker, Jennifer M
Published in
Journal of the American Chemical Society
Interest in mutually exclusive pairs of bioorthogonal labeling reagents continues to drive the design of new compounds that are capable of fast and predictable reactions. The ability to easily modify S-, N-, and O-containing cyclooctynes (SNO-OCTs) enables electronic tuning of various SNO-OCTs to influence their cycloaddition rates with Type I-III ...
Peil, Sebastian Bistoni, Giovanni Goddard, Richard Fürstner, Alois
Published in
Journal of the American Chemical Society
The only recently discovered gem -hydrogenation of internal alkynes is a fundamentally new transformation, in which both H atoms of dihydrogen are transferred to the same C atom of a triple bond while the other position transforms into a discrete metal carbene complex. [Cp*RuCl]4 is presently the catalyst of choice: the resulting piano-stool ruthen...
Tian, Yancong Cao, Xiaodong Li, Xun Zhang, Huan Sun, Cai-Li Xu, Yuanze Weng, Wengui Zhang, Wenke Boulatov, Roman
Published in
Journal of the American Chemical Society
Incorporating hidden length into polymer chains can improve their mechanical properties, because release of the hidden length under mechanical loads enables localized strain relief without chain fracture. To date, the design of hidden length has focused primarily on the choice of the sacrificial bonds holding the hidden length together. Here we dem...
Tian, Lei Tyburski, Robin Wen, Chenyu Sun, Rui Abdellah, Mohamed Huang, Jing D’Amario, Luca Boschloo, Gerrit Hammarström, Leif Tian, Haining
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Published in
Journal of the American Chemical Society
Surface states of mesoporous NiO semiconductor films have particular properties differing from the bulk and are able to dramatically influence the interfacial electron transfer and adsorption of chemical species. To achieve a better performance of NiO-based p-type dye-sensitized solar cells (p-DSCs), the function of the surface states has to be und...
Starkholm, Allan Kloo, Lars Svensson, Per H.
Published in
Journal of the American Chemical Society
Low-dimensional hybrid perovskite materials offer significantly improved stability as well as an extensive compositional space to explore. However, they suffer from poor photovoltaic performance as compared to the 3D perovskite materials because of poor charge-transport properties. Herein, we present the concept of internal dye-sensitized hybrid pe...
