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13 Mar 10:57

Allosterically Controlled Threading of Polymers through Macrocyclic Dimers

by Seda Cantekin, Albert J. Markvoort, Johannes A. A. W. Elemans, Alan E. Rowan and Roeland J. M. Nolte
JorisMunninghoff

Just to let you know what's going on at the 3th floor.

TOC Graphic

Journal of the American Chemical Society
DOI: 10.1021/jacs.5b00431
13 Mar 10:53

VIP: A Facile and Universal Top-Down Method for Preparation of Monodisperse Transition-Metal Dichalcogenide Nanodots

Xiao Zhang, Zhuangchai Lai, Zhengdong Liu, Chaoliang Tan, Ying Huang, Dr. Bing Li, Dr. Meiting Zhao, Prof. Linghai Xie, Prof. Wei Huang and Prof. Hua Zhang

A Facile and Universal Top-Down Method for Preparation of Monodisperse Transition-Metal Dichalcogenide NanodotsOn the dot: The title nanodots (NDs), including MoS2, WS2, ReS2, TaS2, MoSe2, WSe2, and NbSe2, are prepared from their bulk crystals by using a combination of grinding and sonication techniques. The synthesized nanodots, mixed with polyvinylpyrrolidone, are used as active layers for fabrication of memory devices having a nonvolatile memory effect. TMD=transition-metal dichalcogenides.

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06 Mar 12:45

Hot Paper: Dehydrogenative Homocoupling of Terminal Alkenes on Copper Surfaces: A Route to Dienes

JorisMunninghoff

Chemistry in UHV-STM

Qiang Sun, Liangliang Cai, Yuanqi Ding, Lei Xie, Chi Zhang, Prof. Dr. Qinggang Tan and Prof. Dr. Wei Xu

Dehydrogenative Homocoupling of Terminal Alkenes on Copper Surfaces: A Route to DienesOn the surface: By combining high-resolution UHV-STM imaging and DFT calculations, the homocoupling of terminal alkenes on copper surfaces is reported. A diene compound is formed with an appreciably high yield on the Cu(110) surface.

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13 Feb 13:43

Vacancy-Induced Ferromagnetism of MoS2 Nanosheets

by Liang Cai, Jingfu He, Qinghua Liu, Tao Yao, Lin Chen, Wensheng Yan, Fengchun Hu, Yong Jiang, Yidong Zhao, Tiandou Hu, Zhihu Sun and Shiqiang Wei

TOC Graphic

Journal of the American Chemical Society
DOI: 10.1021/ja5120908
05 Feb 19:05

Functionalization of Liquid-Exfoliated Two-Dimensional 2H-MoS2

by Claudia Backes, Nina C. Berner, Xin Chen, Paul Lafargue, Pierre LaPlace, Mark Freeley, Georg S. Duesberg, Jonathan N. Coleman, Aidan R. McDonald
JorisMunninghoff

Functionalization of multilayer exfoliated MoS2 using metal acetates

Functionalization of Liquid-Exfoliated Two-Dimensional 2H-MoS2

Surface modification: Functionalization of liquid-exfoliated, defect-free, layered 2H-MoS2 was achieved through coordination of metal carboxylate salts by basal-plane sulfur atoms. The surface-coordinated metal center acts as an anchor for ligating organic functionalities. X-ray photoelectron spectroscopy (XPS) provides strong evidence for the coordination of MoS2 surface sulfur atoms to the M(OAc)2 salt (see picture).

[Communication]
Claudia Backes, Nina C. Berner, Xin Chen, Paul Lafargue, Pierre LaPlace, Mark Freeley, Georg S. Duesberg, Jonathan N. Coleman, Aidan R. McDonald
Angew. Chem. Int. Ed., January 21, 2015, DOI: 10.1002/anie.201409412. Read article.

05 Feb 19:05

Kinetic and thermodynamic processes of organic species at the solution-solid interface: the view through an STM

JorisMunninghoff

Must-read for solid/liquid stm people

Chem. Commun., 2015, 51,4737-4749
DOI: 10.1039/C4CC09840D, Feature Article
Ursula Mazur, K. W. Hipps
STM based kinetic and thermodynamic studies of ordered organic adlayer formation at the solution-solid interface.
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02 Feb 09:08

Design of Aromatic Helical Polymers for STM Visualization: Imaging of Single and Double Helices with a Pattern of π–π Stacking

by Junyan Zhu, Zeyuan Dong, Shengbin Lei, Lili Cao, Bing Yang, Wenfang Li, Yuanchao Zhang, Junqiu Liu, Jiacong Shen
JorisMunninghoff

STM on helical polymers at the solid/air interface

Design of Aromatic Helical Polymers for STM Visualization: Imaging of Single and Double Helices with a Pattern of π–π Stacking

Seeing is believing: STM imaging of rationally designed helical polymers with a pattern of π–π stacking of the helical structures revealed single- and double-helical superstructures (see picture), including the smallest helical architecture observed to date, with a diameter of approximately 1.3 nm. The interconversion of single and double helices was further underpinned by experimental analyses.

[Communication]
Junyan Zhu, Zeyuan Dong, Shengbin Lei, Lili Cao, Bing Yang, Wenfang Li, Yuanchao Zhang, Junqiu Liu, Jiacong Shen
Angew. Chem. Int. Ed., January 28, 2015, DOI: 10.1002/anie.201410975. Read article.