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09 Dec 02:41

Direct Microscopic Analysis of Individual C60 Dimerization Events: Kinetics and Mechanisms

by Satoshi Okada, Satori Kowashi, Luca Schweighauser, Kaoru Yamanouchi, Koji Harano and Eiichi Nakamura

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Journal of the American Chemical Society
DOI: 10.1021/jacs.7b09776
06 Dec 01:40

Site-selective 18F fluorination of unactivated C-H bonds mediated by a manganese porphyrin

Chem. Sci., 2017, Accepted Manuscript
DOI: 10.1039/C7SC04545J, Edge Article
Open Access Open Access
Wei Liu, Xiongyi Huang, Michael Placzek, Shane Krska, Paul McQuade, Jacob Hooker, John T Groves
The first direct C-H 18F fluorination reaction of unactivated aliphatic sites using no-carrier-added [18F]fluoride is reported. Under the influence of a manganese porphyrin/iodosylbenzene system, a variety of unactivated aliphatic C-H...
The content of this RSS Feed (c) The Royal Society of Chemistry
06 Dec 01:39

Facile Access to Azafullerenyl Cation C59N+ and Specific Interaction with Entrapped Molecules

by Yoshifumi Hashikawa and Yasujiro Murata

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Journal of the American Chemical Society
DOI: 10.1021/jacs.7b11322
06 Dec 01:39

Efficient Singlet Fission and Triplet-Pair Emission in a Family of Zethrene Diradicaloids

by Steven Lukman, Johannes M. Richter, Le Yang, Pan Hu, Jishan Wu, Neil C. Greenham and Andrew J. Musser

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Journal of the American Chemical Society
DOI: 10.1021/jacs.7b10762
05 Dec 01:53

Gram-Scale Syntheses and Conductivities of [10]Cycloparaphenylene and Its Tetraalkoxy Derivatives

by Eiichi Kayahara, Liansheng Sun, Hiroaki Onishi, Katsuaki Suzuki, Tatsuya Fukushima, Ayaka Sawada, Hironori Kaji and Shigeru Yamago

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Journal of the American Chemical Society
DOI: 10.1021/jacs.7b11526
02 Dec 02:43

Moms, should you eat your placentas?

First in-depth analysis finds no health benefits
02 Dec 02:37

Excited-State Aromatic Interactions in the Aggregation-Induced Emission of Molecular Rotors

by Jiri Sturala, Marc K. Etherington, Aisha N. Bismillah, Heather F. Higginbotham, William Trewby, Juan A. Aguilar, Elizabeth H. C. Bromley, Alyssa-Jennifer Avestro, Andrew P. Monkman and Paul R. McGonigal

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Journal of the American Chemical Society
DOI: 10.1021/jacs.7b08570
01 Dec 05:28

Synthesis and applications of rhodium porphyrin complexes

Chem. Soc. Rev., 2018, 47,929-981
DOI: 10.1039/C7CS00582B, Review Article
Samuel J. Thompson, Marshall R. Brennan, Siu Yin Lee, Guangbin Dong
A review on rhodium porphyrin chemistry, ranging from synthesis and properties to reactivity and application.
The content of this RSS Feed (c) The Royal Society of Chemistry
30 Nov 02:15

So much for the abominable snowman. Study finds that ‘yeti’ DNA belongs to bears

New work also yields insight into bear ancestry
30 Nov 02:14

Google’s street view could reveal more than you think

Combined with computer algorithms, the tech company’s images could shed light on income, voting patterns, and more
29 Nov 05:24

Tailoring the Polarity of Charge Carriers in Graphene–Porphine–Graphene Molecular Junctions through Linkage Motifs

by Zhuoling Jiang, Hao Wang, Yongfeng Wang, Stefano Sanvito and Shimin Hou

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The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.7b09847
24 Nov 06:32

Exciton coupling in diketopyrrolopyrrole-helicene derivatives leads to red and near-infrared circularly polarized luminescence

Chem. Sci., 2018, 9,735-742
DOI: 10.1039/C7SC04312K, Edge Article
Open Access Open Access
Kais Dhbaibi, Ludovic Favereau, Monika Srebro-Hooper, Marion Jean, Nicolas Vanthuyne, Francesco Zinna, Bassem Jamoussi, Lorenzo Di Bari, Jochen Autschbach, Jeanne Crassous
Helicene-bis-diketopyrrolopyrrole derivatives display strong circular dichroism and red circularly polarized emission originating from exciton coupling chirality.
The content of this RSS Feed (c) The Royal Society of Chemistry
23 Nov 10:11

On-Surface Cyclization of ortho-Dihalotetracenes to Four- and Six-Membered Rings

by Carlos Sánchez-Sánchez, Adrien Nicolaï, Frédéric Rossel, Jinming Cai, Junzhi Liu, Xinliang Feng, Klaus Müllen, Pascal Ruffieux, Roman Fasel and Vincent Meunier

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Journal of the American Chemical Society
DOI: 10.1021/jacs.7b10026
22 Nov 01:20

Supramolecular assemblies of a nitrogen-embedded buckybowl dimer with C60

Chem. Sci., 2017, Accepted Manuscript
DOI: 10.1039/C7SC04453D, Edge Article
Open Access Open Access
Hiroki Yokoi, Satoru Hiroto, Daisuke Sakamaki, Shu Seki, Hiroshi Shinokubo
A directly connected azabuckybowl dimer was synthesized via a palladium-catalysed C-H/C-Br coupling. The electron-donating nature of the pyrrolic nitrogen atoms of the azabuckybowl enabled a strong complexation with pristine C60....
The content of this RSS Feed (c) The Royal Society of Chemistry
21 Nov 06:05

Palladium-Catalyzed Safe Cyanation of Aryl Iodides with Hexamethylenetetramine

by Yunjing Yan, Song Sun and Jiang Cheng

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The Journal of Organic Chemistry
DOI: 10.1021/acs.joc.7b02373
21 Nov 06:05

Rational Synthesis of 2-Bromoporphyrins and 2,12-Dibromoporphyrins

by Anna-Bea Bornhof, Ruisheng Xiong and K. Eszter Borbas

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The Journal of Organic Chemistry
DOI: 10.1021/acs.joc.7b02404
21 Nov 06:02

Controlled Synthesis of Nickel Encapsulated into Nitrogen-Doped Carbon Nanotubes with Covalent Bonded Interfaces: The Structural and Electronic Modulation Strategy for an Efficient Electrocatalyst in Dye-Sensitized Solar Cells

by Ming Chen, Geng Zhao, Leng-Leng Shao, Zhong-Yong Yuan, Qiang-Shan Jing, Ke-Jing Huang, Zhong-Yuan Huang, Xiang-Hua Zhao and Guo-Dong Zou

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Chemistry of Materials
DOI: 10.1021/acs.chemmater.7b03385
21 Nov 06:00

On-Surface Annulation Reaction Cascade for the Selective Synthesis of Diindenopyrene

by Frank Eisenhut, Thomas Lehmann, Andreas Viertel, Dmitry Skidin, Justus Krüger, Seddigheh Nikipar, Dmitry A. Ryndyk, Christian Joachim, Stefan Hecht, Francesca Moresco and Gianaurelio Cuniberti

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ACS Nano
DOI: 10.1021/acsnano.7b06459
21 Nov 05:58

Graphitic Nitrogen Triggers Red Fluorescence in Carbon Dots

by Kateřina Holá, Mária Sudolská, Sergii Kalytchuk, Dana Nachtigallová, Andrey L. Rogach, Michal Otyepka and Radek Zbořil

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ACS Nano
DOI: 10.1021/acsnano.7b06399
16 Nov 06:31

Hot Paper: Cationic Nitrogen-Doped Helical Nanographenes

Dr. Kun Xu, Yubin Fu, Youjia Zhou, Felix Hennersdorf, Dr. Peter Machata, Ilka Vincon, Prof. Dr. Jan J. Weigand, Dr. Alexey A. Popov, Dr. Reinhard Berger and Prof. Dr. Xinliang Feng

Cationic Nitrogen-Doped Helical Nanographenes

Nitrogen plus: A new bottom-up synthetic method allows the generation of cationic nitrogen-doped nanographenes with nonplanar helical structures. The new nanographenes have interesting properties and have potential use as optical and electronic materials.

Read more now

12 Nov 11:01

Inserting Porphyrin Quantum Dots in Bottom-Up Synthesized Graphene Nanoribbons

by Wade Perkins, Felix Raoul Fischer

Abstract

Diels–Alder copolymerization of tetraphenylcyclopentadienone, a precursor for cove graphene nanoribbons (cGNRs), with bifunctional porphyrins yields defined nanostructures comprised of a single cGNR-porphyrin-cGNR heterojunction within each ribbon. 13C NMR labeling and high-resolution mass spectrometry of solubilized polymer intermediates indicates that every porphyrin is covalently linked to two extended segments of cGNRs. UV/Vis absorption and fluorescence emission spectroscopy reveal a strong electronic correlation between the porphyrin and the adjacent cGNR segments that can be attenuated through reversible metalation of the porphyrin core. This versatile bottom-up synthetic strategy provides access to structurally well-defined, functional GNR-quantum dot-GNR heterostructures within a single graphene nanoribbon.

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The bottom-up solution-based synthesis and selective fractionation of graphene nanoribbon-porphyrin-graphene nanoribbon heterostructures is reported. Absorption and fluorescence spectroscopy reveal a strong coupling between the graphene nanoribbon and the central porphyrin quantum dot.

06 Nov 01:38

Why Do Simple Molecules with “Isolated” Phenyl Rings Emit Visible Light?

by Haoke Zhang, Xiaoyan Zheng, Ni Xie, Zikai He, Junkai Liu, Nelson L. C. Leung, Yingli Niu, Xuhui Huang, Kam Sing Wong, Ryan T. K. Kwok, Herman H. Y. Sung, Ian D. Williams, Anjun Qin, Jacky W. Y. Lam and Ben Zhong Tang

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Journal of the American Chemical Society
DOI: 10.1021/jacs.7b08592
02 Nov 01:08

Mechanochemical Synthesis of Carbon Nanothread Single Crystals

by Xiang Li, Maria Baldini, Tao Wang, Bo Chen, En-shi Xu, Brian Vermilyea, Vincent H. Crespi, Roald Hoffmann, Jamie J. Molaison, Christopher A. Tulk, Malcolm Guthrie, Stanislav Sinogeikin and John V. Badding

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Journal of the American Chemical Society
DOI: 10.1021/jacs.7b09311
31 Oct 02:20

Tunneling Control of Chemical Reactions: The Third Reactivity Paradigm

by Peter R. Schreiner

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Journal of the American Chemical Society
DOI: 10.1021/jacs.7b06035
31 Oct 02:19

Chiral Nanographene Propeller Embedding Six Enantiomerically Stable [5]Helicene Units

by Veronika Berezhnaia, Myriam Roy, Nicolas Vanthuyne, Marco Villa, Jean-Valère Naubron, Jean Rodriguez, Yoann Coquerel and Marc Gingras

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Journal of the American Chemical Society
DOI: 10.1021/jacs.7b07622
20 Oct 09:50

Synthesis of Octaaryl Naphthalenes and Anthracenes with Different Substituents

Synthesis of Octaaryl Naphthalenes and Anthracenes with Different Substituents

Straight to eight: A novel method is presented that enables the synthesis of octaarylnaphthalenes (OANs) and octaarylanthracenes (OAAs) with eight different aryl substituents through [4+2] cycloaddition of tetraarylthiophene S-oxides with multiply arylated arynes.

[Communication]
Shin Suzuki, Kenichiro Itami, Junichiro Yamaguchi
Angew. Chem. Int. Ed., October 19, 2017, https://doi.org/10.1002/anie.201709332 Read article

19 Oct 08:33

The Origin of Chalcogen-Bonding Interactions

by Dominic J. Pascoe, Kenneth B. Ling and Scott L. Cockroft

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Journal of the American Chemical Society
DOI: 10.1021/jacs.7b08511
13 Oct 01:32

Hetero Cu(III)–Pd(II) Complex of a Dibenzo[g,p]chrysene-Fused Bis-dicarbacorrole with Stable Organic Radical Character

by Xian-Sheng Ke, Yongseok Hong, Peiyu Tu, Qing He, Vincent M. Lynch, Dongho Kim and Jonathan L. Sessler

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Journal of the American Chemical Society
DOI: 10.1021/jacs.7b09167
26 Sep 09:30

Decacene: On-Surface Generation

Decacene: On‐Surface Generation

Decathletes: Combined efforts of organic synthesis and on-surface chemistry have led to the preparation of decacene for the first time. An iterative sequence of aryne cycloadditions was used to synthesize stable tetraepoxy precursors which were reduced on Au(111) to obtain unprecedented decacene as visualized by scanning tunneling microscopy (STM).

[Communication]
Justus Krüger, Fátima García, Frank Eisenhut, Dmitry Skidin, José M. Alonso, Enrique Guitián, Dolores Pérez, Gianaurelio Cuniberti, Francesca Moresco, Diego Peña
Angew. Chem. Int. Ed., August 17, 2017, https://doi.org/10.1002/anie.201706156 Read article

26 Sep 09:21

Synthesis and the Nobel Prize in Chemistry

by Jeffrey I. Seeman

Synthesis and the Nobel Prize in Chemistry

Nature Chemistry, Published online: 22 September 2017; doi:10.1038/nchem.2864

The question often arises as to who may have deserved a Nobel Prize but was not awarded one. Rarely is this discussion extended to who should have received more than one Nobel Prize, but in the field of organic synthesis there are some compelling candidates.