Royal Society of Chemistry

Porphyrin entrapment and release behavior of microporous organic hollow spheres: fluorescent alerting systems for existence of organic solvents in water

Chem. Commun. - 31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14885-14888
DOI: 10.1039/C4CC06065B, CommunicationJaewon Jin, Bolyong Kim, Nojin Park, Sungah Kang, Joon Hyun Park, Sang Moon Lee, Hae Jin Kim, Seung Uk Son
Water soluble porphyrins were entrapped in microporous organic hollow spheres (MOHs). The resultant Zn-Por@MOH materials showed controllable release behavior that depended on the presence of organic solvents in water.
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"Double gating" - a concept for enzyme-responsive imaging probes aiming at high tissue specificity

Chem. Commun. - 31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14896-14899
DOI: 10.1039/C4CC07147F, CommunicationMaxime Prost, Jens Hasserodt
A pro-fluorescent probe requires the presence of two target biomolecules to act on it in order to generate a signal.
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Reactions of pyruvates: organocatalytic synthesis of functionalized dihydropyrans in one pot and further transformations to functionalized carbocycles and heterocycles

Chem. Commun. - 31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14881-14884
DOI: 10.1039/C4CC06035K, CommunicationPandurang V. Chouthaiwale, Fujie Tanaka
Concise cascade reactions of pyruvates with aldehydes that generate functionalized dihydropyran derivatives in one pot have been developed. The products, dihydropyrans, were further concisely transformed to various functionalized molecules.
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Separation of planar rotamers through intramolecular hydrogen bonding in polysubstituted 5-nitrosopyrimidines

Chem. Commun. - 31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14892-14895
DOI: 10.1039/C4CC06978A, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.L. Cechova, E. Prochazkova, I. Cisarova, M. Dracinsky, Z. Janeba
Unique isolation of pairs of planar rotamers, planamers, as chemical species differing only in nitroso group orientation, separable through the presence of a single intramolecular hydrogen bond, is reported.
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Tandem-reduction of DMF with silanes via necklace-type transition over Pt(0) nanoparticles: deciphering the dual Si-H effect as an extension of steric effects

Chem. Commun. - 31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14820-14823
DOI: 10.1039/C4CC06979J, CommunicationVijay P. Taori, Michael R. Buchmeiser
The mechanism of the reduction of dimethylformamide to N(CH3)3 by the action of silanes and a heterogeneous Pt-catalyst is presented.
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Cerium tetrakis(diisopropylamide) - a useful precursor for cerium(IV) chemistry

Chem. Commun. - 31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14763-14766
DOI: 10.1039/C4CC06228K, CommunicationDavid Schneider, Tatiana Spallek, Cacilia Maichle-Mossmer, Karl W. Tornroos, Reiner Anwander
Homoleptic complex Ce(NiPr2)4 features a promising candidate for protonolysis reactions, as shown for the synthesis of dimeric cerium(IV) tetrakis(1,1,3,3-N,N,N[prime or minute],N[prime or minute]-tetramethylguanidinate).
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A one-step route to Ag nanowires with a diameter below 40 nm and an aspect ratio above 1000

Chem. Commun. - 31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14877-14880
DOI: 10.1039/C4CC04698F, CommunicationYunxia Ran, Weiwei He, Ke Wang, Shulin Ji, Changhui Ye
Ag nanowires with a diameter smaller than 25 nm and an aspect ratio larger than 1000 are synthesized using mixed PVP molecules of different chain length in a polyol reduction process.
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Anion binding modes in cis-trans-isomers of a binding site-fluorophore-[small pi]-extended system

Chem. Commun. - 31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14748-14751
DOI: 10.1039/C4CC07308H, CommunicationMin Zhou, Jinju Chen, Chuanxiang Liu, Hanghai Fu, Nan Zheng, Chuanxiu Zhang, Yong Chen, Jiagao Cheng
The cis- and trans-conformational isomers revealed moderately different binding modes in the detection of CN- ions for the first time.
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A highly sensitive ratiometric electrochemiluminescent biosensor for microRNA detection based on cyclic enzyme amplification and resonance energy transfer

Chem. Commun. - 31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14828-14830
DOI: 10.1039/C4CC06801G, CommunicationNan Hao, Xiang-Ling Li, Huai-Rong Zhang, Jing-Juan Xu, Hong-Yuan Chen
A ratiometric electrochemiluminescent biosensor for the detection of microRNAs based on cyclic enzyme amplification and resonance energy transfer was reported.
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The first route to highly stable crystalline microporous zirconium phosphonate metal-organic frameworks

Chem. Commun. - 31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14831-14834
DOI: 10.1039/C4CC06223J, CommunicationMarco Taddei, Ferdinando Costantino, Fabio Marmottini, Angiolina Comotti, Piero Sozzani, Riccardo Vivani
The first crystalline microporous zirconium phosphonate metal-organic framework (UPG-1) was synthesized using the novel tritopic ligand 2,4,6-tris(4-(phosphonomethyl)phenyl)-1,3,5-triazine.
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Reversible transformation between chiral and achiral Dy6Mo4 clusters through a symmetric operation

Chem. Commun. - 31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14728-14731
DOI: 10.1039/C4CC07047J, CommunicationYong Zheng, Yin-Yin Pan, Yan-Ping Ren, La-Sheng Long, Rong-Bin Huang, Lan-Sun Zheng
The achiral cluster I, with S4 symmetry, can transform into chiral II and III, with C2 symmetry, via replacement of the NH4+ cation in I with Et3NH+ and Me4N+, respectively. And the transformation between chiral and achiral clusters is reversible.
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Spontaneous formation of organic helical architectures through dynamic covalent chemistry

Chem. Commun. - 31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14744-14747
DOI: 10.1039/C4CC07263D, CommunicationWenfang Li, Zeyuan Dong, Junyan Zhu, Quan Luo, Junqiu Liu
Using dynamic covalent chemistry, achiral and chiral building blocks are capable of self-organizing into organic helical structures, accompanied with chiral amplification.
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A novel Pd-catalyzed N-dealkylative carbonylation of tertiary amines for the preparation of amides

Chem. Commun. - 31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14775-14777
DOI: 10.1039/C4CC07378A, CommunicationTao Fang, Xu-Hong Gao, Ri-Yuan Tang, Xing-Guo Zhang, Chen-Liang Deng
We report a novel and efficient method for the synthesis of amides via Pd-catalyzed N-dealkylative carbonylation of alkyl tertiary amines.
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Acid- and base-functionalized core-confined bottlebrush copolymer catalysts for one-pot cascade reactions

Chem. Commun. - 31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14778-14781
DOI: 10.1039/C4CC06573E, CommunicationLinfeng Xiong, Hui Zhang, Aiqing Zhong, Zidong He, Kun Huang
A novel method that enables the formation of core-confined bottlebrush copolymers (CCBCs) as catalyst supports for one-pot cascade reactions is reported for the first time.
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Phenylenevinylene conjugated oligoelectrolytes as fluorescent dyes for mammalian cell imaging

Chem. Commun. - 31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14859-14861
DOI: 10.1039/C4CC06478J, CommunicationPaulina Gwozdzinska, Roza Pawlowska, Justyna Milczarek, Logan E. Garner, Alexander W. Thomas, Guillermo C. Bazan, Arkadiusz Chworos
Conjugated phenylenevinylene oligoelectrolytes, which consist of a phenylenevinylene core equipped at each end with hydrophilic pendent groups, are shown to be good candidates for mammalian cell membrane staining.
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The double perovskite oxide Sr2CrMoO6-[small delta] as an efficient electrocatalyst for rechargeable lithium air batteries

Chem. Commun. - 31 October, 2014 - 16:17

Chem. Commun., 2014, 50,14855-14858
DOI: 10.1039/C4CC06113F, CommunicationZhong Ma, Xianxia Yuan, Lin Li, Zi-Feng Ma
Rechargeable lithium air batteries based on the double perovskite oxide Sr2CrMoO6-[small delta] (SCM) as the cathode catalyst reveal a good performance.
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A very simple and high-yield method to synthesize nanolayered Mn oxide

Dalton Transactions - 30 October, 2014 - 22:17
Dalton Trans., 2014, Accepted Manuscript
DOI: 10.1039/C4DT02468K, PaperMohammad Mahdi Najafpour, Emad Amini
Nanolayered Mn oxides have been prepared by a very simple, cheap and high-yield method using soap, KOH, MnCl2 and H2O2. Scanning electron microscopy, transmission electron microscopy, dynamic light scattering, thermogravimetric...
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Catalytic oxygenation of sp3 "C-H" bonds with Ir(III) complexes of chelating triazoles and mesoionic carbenes

Dalton Transactions - 30 October, 2014 - 22:17
Dalton Trans., 2014, Accepted Manuscript
DOI: 10.1039/C4DT02879A, PaperBiprajit Sarkar, Stephan Hohloch, Fenja Leena Duecker, Selina Kaiser, Aljosa Bolje, Janez Kosmrlj, Ramananda Maity
Cp*-Ir(III) complexes with additional chelating ligands are known active pre-catalysts for the oxygenation of C-H bonds. We present here eight examples of such complexes where the denticity of the chelating...
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Smaller than a nanoparticle with the design of discrete polynuclear molecular complexes displaying near-infrared to visible upconversion

Dalton Transactions - 30 October, 2014 - 22:17

Dalton Trans., 2014, Advance Article
DOI: 10.1039/C4DT02336F, PaperDavood Zare, Yan Suffren, Laure Guenee, Svetlana V. Eliseeva, Homayoun Nozary, Lilit Aboshyan-Sorgho, Stephane Petoud, Andreas Hauser, Claude Piguet
An unprecedented molecular [ErN9] chromophore emits simultaneous dual green (542 nm) and near-infrared (1540 nm) light upon indirect excitation.
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Protein Ruthenation and DNA Alkylation: Chlorambucil-functionalized RAPTA Complexes and Their Anticancer Activity

Dalton Transactions - 30 October, 2014 - 22:17
Dalton Trans., 2014, Accepted Manuscript
DOI: 10.1039/C4DT02764G, PaperAlexey Nazarov, Samuel M. Meier, Olivier Zava, Yulia Novosova, Elena Rudolfovna Milaeva, Christian Hartinger, Paul Dyson
Chemotherapeutics for the treatment of tumorigenic conditions that feature novel modes of action are highly sought after to overcome the limitations of current chemotherapies. Herein, we report the conjugation of...
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