Royal Society of Chemistry

Circular serendipity: in situ ligand transformation for the self-assembly of an hexadecametallic [CuII16] wheel

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15002-15005
DOI: 10.1039/C4CC07582J, CommunicationAndreas K. Kostopoulos, Athanassios D. Katsenis, Jamie M. Frost, Vadim G. Kessler, Euan K. Brechin, Giannis S. Papaefstathiou
A [Cu16II] wheel has been isolated serendipitously from the reaction of acetylacetone dioxime with CuII and LnIII ions. The ligand has been transformed in situ to three different forms, all found within the [Cu16], with the original ligand absent.
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Inducing achiral aliphatic oligoureas to fold into helical conformations

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15006-15009
DOI: 10.1039/C4CC06754A, CommunicationRomina Wechsel, Julien Maury, Juliette Fremaux, Scott P. France, Gilles Guichard, Jonathan Clayden
Hydrogen-bonded oligoureas of achiral diamine monomers are induced to adopt a helical conformation with a preferred screw-sense by ligation to a single terminal chiral monomer.
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Hyaluronic acid-polypyrrole nanoparticles as pH-responsive theranostics

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15014-15017
DOI: 10.1039/C4CC06349J, CommunicationDongjin Park, Youngnam Cho, Sung-Ho Goh, Yongdoo Choi
Doxorubicin-loaded hyaluronic acid-polypyrrole nanoparticles as smart theranostic agents for proliferating macrophages.
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Reactivity of a Ru(III)-hydroxo complex in substrate oxidation in water

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15018-15021
DOI: 10.1039/C4CC07488B, CommunicationShingo Ohzu, Tomoya Ishizuka, Hiroaki Kotani, Takahiko Kojima
A mononuclear RuIII-OH complex oxidizes substrates such as hydroquinones in water through a pre-equilibrium process based on adduct formation by hydrogen bonding between the RuIII-OH complex and the substrates. The reaction mechanism switches from hydrogen atom transfer to electron transfer depending on the oxidation potential of substrates.
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A disulfide polymerized protein crystal

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,14995-14997
DOI: 10.1039/C4CC07326F, CommunicationEsben M. Quistgaard
A protein crystal has been grown, which uniquely, is fully cross-linked by cysteine-mediated disulfide bonds along the c-axis.
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A high-accuracy universal polarimeter study of optical anisotropy and optical activity in laminated collagen membranes

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15086-15089
DOI: 10.1039/C3CC49328H, CommunicationKenta Nakagawa, Heather Harper-Lovelady, Yuji Tanaka, Masahito Tanaka, Masayuki Yamato, Toru Asahi
A novel method for fabricating anisotropic collagen membranes is developed. The HAUP method is used for simultaneous and quantitative evaluations of the optical anisotropy and optical activity.
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The solvent effect in an axially symmetric FeIII4 single-molecule magnet

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15090-15093
DOI: 10.1039/C4CC07580C, CommunicationYuan-Yuan Zhu, Ting-Ting Yin, Shang-Da Jiang, Anne-Laure Barra, Wolfgang Wernsdorfer, Petr Neugebauer, Raphael Marx, Maria Dorfel, Bing-Wu Wang, Zong-Quan Wu, Joris van Slageren, Song Gao
The axial symmetry of an FeIII4 SMM is broken by the interaction of the molecule with the disordered solvent molecules.
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Chiral porous organic frameworks for asymmetric heterogeneous catalysis and gas chromatographic separation

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,14949-14952
DOI: 10.1039/C4CC07648F, CommunicationJinqiao Dong, Yan Liu, Yong Cui
Three chiral diene-based porous organic frameworks (POFs) are prepared, and POF-1 is shown to be an efficient heterogeneous catalyst after metallation and also a new chiral stationary phase for GC separation.
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New six- and seven-membered ring pyrrole-pyridine hydrogen bond systems undergoing excited-state intramolecular proton transfer

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15026-15029
DOI: 10.1039/C4CC07109C, CommunicationZhiyun Zhang, Yen-Hao Hsu, Yi-An Chen, Chi-Lin Chen, Tzu-Chieh Lin, Jiun-Yi Shen, Pi-Tai Chou
The six- and seven-membered ring pyrrole-pyridine hydrogen bonding systems are developed, which undergo excited-state intramolecular proton transfer with distinct reaction dynamics.
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Ligand-assisted etching: the stability of silver nanoparticles and the generation of luminescent silver nanodots

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15098-15100
DOI: 10.1039/C4CC07729F, CommunicationSungmoon Choi, Soonyoung Park, Junhua Yu
The etching mechanism of silver nanoparticles was investigated.
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Ultrastable core-shell structured nanoparticles directly made from zwitterionic polymers

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15030-15033
DOI: 10.1039/C4CC06558A, CommunicationWei Wang, Yang Lu, Zhanguo Yue, Wenguang Liu, Zhiqiang Cao
A one-step method to create ultra-stable core-shell nanoparticles directly from zwitterionic polymers.
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A hybrid with uniaxial negative thermal expansion behaviour: the synergistic role of organic and inorganic components

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,14960-14963
DOI: 10.1039/C4CC06373B, CommunicationKai-Yao Wang, Mei-Ling Feng, Liu-Jiang Zhou, Jian-Rong Li, Xing-Hui Qi, Xiao-Ying Huang
Through the study on a new Mn2(api)Sb2S5 compound, we propose a strategy for designing a novel hybrid with uniaxial NTE behaviour based on the synergistic role of organic and inorganic components.
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Conducting polymer nanoparticles decorated with collagen mimetic peptides for collagen targeting

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15045-15048
DOI: 10.1039/C4CC06056C, CommunicationJose Luis Santos, Yang Li, Heidi R. Culver, Michael S. Yu, Margarita Herrera-Alonso
We report on the formation of conducting polymer nanoparticles (CPNs), stabilized by a collagen mimetic peptide (CMP)-polymer amphiphile.
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Highly efficient CO2 capture by carbonyl-containing ionic liquids through Lewis acid-base and cooperative C-HO hydrogen bonding interaction strengthened by the anion

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15041-15044
DOI: 10.1039/C4CC06944G, CommunicationFang Ding, Xi He, Xiaoyan Luo, Wenjun Lin, Kaihong Chen, Haoran Li, Congmin Wang
Carbonyl-containing anion-functionalized ionic liquids exhibit a significant enhancement in CO2 capacity and excellent reversibility.
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Selective ruthenium-catalyzed methylation of 2-arylethanols using methanol as C1 feedstock

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,14991-14994
DOI: 10.1039/C4CC06933A, CommunicationYang Li, Haoquan Li, Henrik Junge, Matthias Beller
The selective cross coupling of methanol and 2-arylethanols using a combination of Ru-MACHO (RuHCl(PNPPh)CO) and Shvo's diruthenium complex as catalysts is described.
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Sensitive detection of transcription factors using an Ag+-stabilized self-assembly triplex DNA molecular switch

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,14987-14990
DOI: 10.1039/C4CC06205A, CommunicationDesong Zhu, Jing Zhu, Ye Zhu, Lei Wang, Wei Jiang
A simple, enzyme-free and sensitive new fluorescent strategy for detection of transcription factors was proposed based on a bifunctional Ag+-stabilized self-assembly triplex DNA molecular switch.
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DNA cleavage by oxymyoglobin and cysteine-introduced metmyoglobin

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15034-15036
DOI: 10.1039/C4CC06617K, CommunicationMegha Subhash Deshpande, Sendy Junedi, Halan Prakash, Satoshi Nagao, Masaru Yamanaka, Shun Hirota
DNA was cleaved oxidatively by oxygenated myoglobin, whereas Lys96Cys metmyoglobin functioned as an artificial nuclease under air by formation of an oxygenated species.
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The synthesis of diarylsulfones with simple arenes and K2S2O8 through double C-S bond formation

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,15037-15040
DOI: 10.1039/C4CC05964F, CommunicationYiqing Yang, Zhang Chen, Yu Rao
A novel and practical method has been developed to prepare both symmetric and unsymmetric diarylsulfones with simple arenes in a single step. K2S2O8 serves as a highly effective sulfonating agent in this reaction. Both TfOH and TFAA play critical roles in C-S bond formation. The reaction demonstrates excellent reactivity, good functional group tolerance and high yields.
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A monomeric photosensitizer for targeted cancer therapy

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,14983-14986
DOI: 10.1039/C4CC07628A, CommunicationRuizheng Liang, Lina Ma, Lele Zhang, Chunyang Li, Wendi Liu, Min Wei, Dan Yan, David G. Evans, Xue Duan
A targeted photosensitizer used in photodynamic therapy (PDT) was fabricated by incorporation of zinc phthalocyanine (ZnPc) and folic acid (FA) into polyvinylpyrrolidone (PVP) micelles, which exhibits excellent anticancer performance revealed by both in vitro studies and in vivo tests.
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Photoinduced water oxidation catalyzed by a double-helical dicobalt(II) sexipyridine complex

Chem. Commun. - 4 November, 2014 - 17:17

Chem. Commun., 2014, 50,14956-14959
DOI: 10.1039/C4CC07607A, CommunicationMan Chen, Siu-Mui Ng, Shek-Man Yiu, Kai-Chung Lau, Raymond J. Zeng, Tai-Chu Lau
A dicobalt(II) sexipyridine complex functions as a molecular catalyst for visible light-induced water oxidation at pH 8-8.5 in the presence of Ru(bpy)32+ and S2O82-.
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