Chem. Commun.

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Updated: 2 hours 33 min ago

Tetraiodoethynyl resorcinarene cavitands as multivalent halogen bond donors

2 hours 33 min ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07771G, CommunicationLotta Turunen, N. Kodiah Beyeh, Fangfang Pan, Arto Valkonen, Kari Rissanen
The syntheses and halogen bonded (XB) complexes of tetrahalogenated ethynyl cavitands are presented. These cavitands act as quite rigid 3D multivalent halogen bond donors and show strong XB with oxygen,...
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Supramolecular Assembly-Induced Yellow Emission of 9,10-Distyrylanthracene Bridged Bis(pillar[5]arene)s

2 hours 33 min ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08205B, CommunicationNan Song, Dai-Xiong Chen, Meng-Chan Xia, Xi-Long Qiu, ke ma, Bin Xu, Wenjing Tian, Ying-Wei Yang
9,10-Distyrylanthracene has been introduced to bridge two pillarenes to form a dimeric host, which can assemble into linear supramolecular polymer upon cooperatively binding with a neutral guest linker, exhibiting yellow...
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Dendrimeric Calcium-responsive MRI Contrast Agents with Slow in vivo Diffusion

2 hours 33 min ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07540D, CommunicationSerhat Gunduz, Nobuhiro Nitta, Sandip Madhukar Vibhute, Shibata Sayaka, M E Maier, Nikos K. Logothetis, Ichio Aoki, Goran Angelovski
We report a methodology which enables preparation of dendrimeric contrast agents sensitive to Ca2+ when starting from the monomeric analogue. The Ca-triggered longitudinal relaxivity response of these agents is not...
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A new method for peptide synthesis in the N[rightward arrow]C direction: amide assembly through silver-promoted reaction of thioamides

2 hours 33 min ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07601J, CommunicationAysa Pourvali, James R Cochrane, Craig Hutton
The Ag(I)-promoted coupling of amino acids and peptides with amino ester thioamides generates peptide imides without epimerisation. The peptide imides undergo regioselective hydrolysis under mild conditions to generate native peptides....
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Fluorometric assay of integrin activity with a small-molecular probe that senses the binding site microenvironment

2 hours 33 min ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05591H, CommunicationToru Komatsu, Aoi Takeda, kenjiro Hanaoka, Takuya Terai, Tasuku Ueno, Yukio Tada, Tetsuo Nagano, Urano Yasuteru
We have developed a small-molecular probe, consisting of cyclic RGD pentapeptide bearing a nitrobenzoxadiazole fluorophore at the 4'-residue that detects integrin [small alpha]V[small beta]3 activity in terms of fluorescence intensity decrease due...
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Two act as one: unexpected dimers of catechol direct a solid-state [2+2] photodimerization in a six-component hydrogen-bonded assembly

2 hours 33 min ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07747D, CommunicationGiannis S. Papaefstathiou, Andrew J. Duncan, Len R MacGillivray
We describe hydrogen-bonded dimers of catechol that act collectively as a single template to direct an intermolecular [2+2] photocycloaddition in the solid state. The directed reactivity involves discrete, six-component hydrogen-bonded...
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Mechanical grinding of a single-crystalline metal-organic framework triggered emission with tunable violet-to-orange luminescence

2 hours 33 min ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC08316D, CommunicationJian-Ke Sun, Cheng Chen, Li-Xuan Cai, Cai-Xia Ren, Bin Tan, Jie Zhang
A metal-organic framework (MOF) featuring intriguing Borromean entanglement exhibits a unique mechanochromic luminescence with an on-off switching. The concomitant excitation wavelength-dependent emission behavior can be utilized to tune the emission...
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Polyoxometalate as Inorganic Chiral Ligand for Synthesis of Chiral Nanoparticles

2 hours 33 min ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07750D, CommunicationLixin Wu, Lei Shi, Bao Li
Inherent chiral polyoxometalate, while acting as stabilizer, is developed into inorganic chiral ligand for the synthesis of chiral metal nanoparticles, where the generated optical activity and stabilization are found to...
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Efficient oxygen reduction by nanocomposites of heterometallic carbide and nitrogen-enriched carbon derived from the cobalt-encapsulated indium-MOF

2 hours 33 min ago

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC06867J, CommunicationAiguo Kong, Qipu Lin, Chengyu Mao, Xianhui Bu, Pingyun Feng
One-step thermal conversion of the Co-In-MOF was developed to obtain efficient heterometallic carbide(Co3InC0.75)/carbon electrocatalysts for oxygen reduction.
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Fabrication of graphene quantum dot-decorated graphene sheets via chemical surface modification

2 hours 33 min ago

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC06567K, CommunicationJaehoon Ryu, Eunwoo Lee, Seungae Lee, Jyongsik Jang
A novel approach to link graphene quantum dots (GQDs) with graphene was explored via chemical surface modification of graphene using 1,5-diaminonapthalene (DAN) and the GDGS have been demonstrated as photocatalysts having high efficiencies suggesting its potential applications.
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A temporary-bridge strategy for enantioselective organocatalyzed synthesis of aza-seven-membered rings

2 hours 33 min ago

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC07731H, CommunicationSebastien Goudedranche, David Pierrot, Thierry Constantieux, Damien Bonne, Jean Rodriguez
We report the first enantioselective organocatalyzed domino synthesis of azepane scaffolds based on an original annulation between [small alpha]-ketoamides and enals.
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A Click-and-Release Approach to CO Prodrugs

2 hours 33 min ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07748B, CommunicationDanzhu Wang, Emilie Viennois, Kaili Ji, Krishna Damera, Alexander Draganov, Yueqin Zheng, Chaofeng Dai, Didier Merlin, Binghe Wang
Carbon monoxide belongs to the family of signaling molecules and has been shown to possess therapeutic effect. Similar to NO, safe delivery of CO is a key issue in developing...
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A 3D MOF showing unprecedented solvent-induced single-crystal-to-single-crystal transformation and excellent CO2 adsorption selectivity at room temperature

2 hours 33 min ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06588C, CommunicationTao Qin, Jun Gong, Junhan Ma, Xin Wang, Yonghua Wang, Yan Xu, Xuan Shen, Dunru Zhu
A water stable porous 3D metal-organic framework, [Cu3L2(m3-OH)2(m2-H2O)]∙2DMA (1, mother crystal, H2L = 2,2'-dinitrobiphenyl-4,4'-dicarboxylic acid, DMA = N,N-dimethylacetamide) shows unprecedented irreversible solvent-induced substitutions of bridging aqua ligands and guest-exchanges in...
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Sub-20 nm-Fe3O4 squared and circular nanoplates: Synthesis and facet-dependent magnetic and electrochemical properties

2 hours 33 min ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06064D, CommunicationXingjiu Huang, Tao Luo, Qiang-Qiang Meng, Chao Gao, Xinyao Yu, Yong Jia, Bai Sun, Zhen Jin, Qunxiang Li, Jinhuai Liu
Magnetite nanocrystals with the size smaller than 20 nm exhibit superior characteristics in many applications such as targeted therapies, magnetic resonance imaging diagnosis and pollutants removal from water. Meanwhile, previous...
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Long-lived charge separation in a rigid pentiptycene bis(crown ether)-Li+@C60 host-guest complex

2 hours 33 min ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07795D, CommunicationMustafa Supur, Yuki Kawashima, Ying-Xian Ma, Kei Ohkubo, Chuan-Feng Chen, Shunichi Fukuzumi
We report long-lived charge separation in a highly rigid host-guest complex of pentiptycene bis(crown ether) and Li+@C60, in which the pentiptycene framework is actively involved as an electron donor in...
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Titania photocatalysis through two-photon band-gap excitation with built-in rhodium redox mediator

2 hours 33 min ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC07049F, CommunicationJoanna Kuncewicz, Bunsho Ohtani
Titania particles modified with extremely small amount (< 0.01mol%) of rhodium species exhibited photocatalytic activity for oxidative decomposition of acetaldehyde in air under visible-light irradiation through two-photon band-gap excitation mechanism,...
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Multistimuli-responsive azobenzene nanofibers with aggregation-induced emission enhancement characteristics

2 hours 33 min ago
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC06938B, CommunicationMina Han, Sung-June Cho, Yasuo Norikane, Masaki Shimizu, Akinori Kimura, Tomokazu Tamagawa, Takahiro Seki
A new azobenzene chromophore was designed to create fluorescent one-dimensional (1D) structures with high crystallinity. The formation of crystalline fibers is accompanied by a significant red shift in the absorption...
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Tetrahedral Sn-silsesquioxane: synthesis, characterization and catalysis

2 hours 33 min ago

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC07897G, CommunicationEvgeny V. Beletskiy, Zhongliang Shen, Mark V. Riofski, Xianliang Hou, James R. Gallagher, Jeffrey T. Miller, Yuyang Wu, Harold H. Kung, Mayfair C. Kung
The tetrahedral Sn center of a POSS-Sn-POSS complex is a Lewis acid that ligate amines in either anti or syn configuration, and catalyzes epoxide ring opening and hydride transfer.
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Photodynamic optical sensor for buffer capacity and pH based on hydrogel-incorporated spiropyran

2 hours 33 min ago

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC07821G, CommunicationG. Mistlberger, M. Pawlak, E. Bakker, I. Klimant
The kinetics of a light activated proton extraction correlates with the buffer capacity of a sample at a given pH.
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Fluoride, bifluoride and trifluoromethyl complexes of iridium(I) and rhodium(I)

2 hours 33 min ago

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC07772E, CommunicationByron J. Truscott, Fady Nahra, Alexandra M. Z. Slawin, David B. Cordes, Steven P. Nolan
New methods for the preparation of a range of NHC-based Ir(I) and Rh(I) fluoride, bifluoride and trifluoromethyl complexes are reported.
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