Royal Society of Chemistry

Exclusive selectivity of multidentate ligands independent on the oxidation state of cobalt: influence of steric hindrance on dioxygen binding and phenoxazinone synthase activity

Dalton Transactions - 8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7760-7770
DOI: 10.1039/C3DT53546K, PaperAnangamohan Panja
Exclusive selectivity of the acyclic Schiff dibasic form of the ligand over the heterocyclic analogue is reported in the cobalt chemistry. The pronounced effect of the methyl substitutions (position of substitution) on their crystal structures and chemical reactivity has been observed.
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Structural and spectroscopic properties of Yb3+-doped MgAl2O4 nanocrystalline spinel

Dalton Transactions - 8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7752-7759
DOI: 10.1039/C3DT53644K, PaperRafal J. Wiglusz, Georges Boulon, Yannick Guyot, Malgorzata Guzik, Dariusz Hreniak, Wieslaw Strek
Pechini's sol-gel method was successfully applied to obtain an Yb3+-doped MgAl2O4 spinel nanopowder. The regularity between the observed structural and spectroscopic measurements was described in detail.
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Effect of f-f interactions on quantum tunnelling of the magnetization: mono- and dinuclear Dy(III) phthalocyaninato triple-decker single-molecule magnets with the same octacoordination environment

Dalton Transactions - 8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7716-7725
DOI: 10.1039/C4DT00042K, PaperKeiichi Katoh, Rina Asano, Akira Miura, Yoji Horii, Takaumi Morita, Brian K. Breedlove, Masahiro Yamashita
The magnetic relaxation time ([small tau]) for 2 was one order of magnitude greater than that for 1.
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Visible light excitable ON fluorescence and naked eye detection of Cu2+via hydrolysis of rhodamine-thiophene conjugate: human breast cancer cell (MCF7) imaging studies

Dalton Transactions - 8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7747-7751
DOI: 10.1039/C4DT00002A, PaperSangita Adhikari, Abhijit Ghosh, Sandip Mandal, Archya Sengupta, Ansuman Chattopadhyay, Jesus Sanmartin Matalobos, Sisir Lohar, Debasis Das
Rhodamine based probe RDHDTCA selectively senses Cu2+ both colorimetrically and fluorimetrically and works via hydrolysis mechanism.
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Exploring anagostic interactions in 5,15-porphodimethene metal complexes

Dalton Transactions - 8 May, 2014 - 02:17

Dalton Trans., 2014, 43,7699-7703
DOI: 10.1039/C3DT53307G, CommunicationM. G. Derry Holaday, Gourav Tarafdar, Arun Kumar, M. L. P. Reddy, A. Srinivasan
By using 5,15-porphodimethene metal complexes, the weak noncovalent anagostic interaction is explored using variable temperature NMR studies and is further confirmed by single crystal X-ray analysis.
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FD 171: Emerging Photon Technologies for Probing Ultrafast Molecular Dynamics

Faraday Disc. - 7 May, 2014 - 13:54
Faraday Discuss., 2014, Accepted Manuscript
DOI: 10.1039/C4FD00015C, PaperNora Berrah, Li Fang, Timur Osipov, Zoltan Jurek, Brendan F Murphy, Robin Santra
The understanding of physical and chemical changes at an atomic spatial scale and on the time scale of atomic motion is essential for a broad range of scientific fields. A...
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Catalytic liquid marbles: Ag nanowire-based miniature reactors for highly efficient degradation of methylene blue

Chem. Commun. - 6 May, 2014 - 20:54

Chem. Commun., 2014, 50,5923-5926
DOI: 10.1039/C4CC01949K, CommunicationYue-E Miao, Hiang Kwee Lee, Wee Shern Chew, In Yee Phang, Tianxi Liu, Xing Yi Ling
Ag nanowire-based catalytic liquid marbles are fabricated as miniature reactors, which demonstrate highly efficient, support-free and rate-controllable heterogeneous degradation of methylene blue, with catalytic efficiency close to 100%.
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Unexpected neutral aza-macrocycle complexes of sodium

Chem. Commun. - 6 May, 2014 - 20:54

Chem. Commun., 2014, 50,5843-5846
DOI: 10.1039/C4CC01407C, CommunicationMatthew Everett, Andrew Jolleys, William Levason, David Pugh, Gillian Reid
Highly unusual Na+ complexes with neutral tri- and tetra-amines are isolable in good yield from the reaction of NaBArF with the amine in organic media.
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Dehydrogenation of a tertiary amine-borane by a rhenium complex

Chem. Commun. - 6 May, 2014 - 20:54

Chem. Commun., 2014, 50,5874-5877
DOI: 10.1039/C4CC01771D, CommunicationSohail Muhammad, Salvador Moncho, Edward N. Brothers, Ashfaq A. Bengali
Photolysis of CpRe(CO)3 in the presence of H3BNEt3 results in the dehydrogenation of the borane and formation of trans-CpRe(CO)2(H)2.
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Unfolding the crucial role of a nucleophile in Ziegler-Natta type Ir catalyzed polyaminoborane formation

Chem. Commun. - 6 May, 2014 - 20:54

Chem. Commun., 2014, 50,5919-5922
DOI: 10.1039/C4CC01337A, CommunicationSourav Bhunya, Tanmay Malakar, Ankan Paul
DFT investigations reveal that a transition metal bound amino-borane unit is responsible for chain initiation and chain growth in polyaminoborane formation catalysed by Brookhart's iridium pincer catalyst. This mechanistic manifold reported here is also implicated in other transition metal catalysed polyaminoborane formation processes.
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New members of layered oxychloride perovskites with square planar coordination: Sr2MO2Cl2 (M = Mn, Ni) and Ba2PdO2Cl2

Chem. Commun. - 6 May, 2014 - 20:54

Chem. Commun., 2014, 50,5915-5918
DOI: 10.1039/C4CC01422G, CommunicationY. Tsujimoto, C. I. Sathish, Y. Matsushita, K. Yamaura, T. Uchikoshi
We have demonstrated high-pressure syntheses of Ruddlesden-Popper type layered oxychloride perovskites, Sr2MnO2Cl2, Sr2NiO2Cl2 and Ba2PdO2Cl2, with a square planar coordination around the transition metal centres.
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Facile synthesis of yolk-shell structured Si-C nanocomposites as anodes for lithium-ion batteries

Chem. Commun. - 6 May, 2014 - 20:54

Chem. Commun., 2014, 50,5878-5880
DOI: 10.1039/C4CC01728E, CommunicationLei Pan, Haibin Wang, Dacheng Gao, Shengyang Chen, Lei Tan, Lei Li
A new method to synthesize yolk-shell structured Si-C nanocomposites as anodes for lithium-ion batteries was reported.
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Copper-catalyzed olefinic C-H difluoroacetylation of enamides

Chem. Commun. - 6 May, 2014 - 20:54

Chem. Commun., 2014, 50,5887-5890
DOI: 10.1039/C4CC01994F, CommunicationGilles Caillot, Jeremy Dufour, Marie-Charlotte Belhomme, Thomas Poisson, Laurence Grimaud, Xavier Pannecoucke, Isabelle Gillaizeau
An efficient copper-catalyzed method for the regioselective synthesis of [small beta]-difluoroester substituted enamides using BrCF2CO2Et is reported for the first time.
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Switching an O2 sensitive glucose oxidase bioelectrode into an almost insensitive one by cofactor redesign

Chem. Commun. - 6 May, 2014 - 20:54

Chem. Commun., 2014, 50,5912-5914
DOI: 10.1039/C4CC01670J, CommunicationEmilie Tremey, Emmanuel Suraniti, Olivier Courjean, Sebastien Gounel, Claire Stines-Chaumeil, Frederic Louerat, Nicolas Mano
We switched an O2 sensitive glucose oxidase bioelectrode into an almost insensitive one by cofactor redesign.
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All-round robustness of the Mn19 coordination cluster system: experimental validation of a theoretical prediction

Chem. Commun. - 6 May, 2014 - 20:54

Chem. Commun., 2014, 50,5847-5850
DOI: 10.1039/C4CC01264J, CommunicationAyuk M. Ako, Yanhua Lan, Oliver Hampe, Eduard Cremades, Eliseo Ruiz, Christopher E. Anson, Annie K. Powell
Experimental and theoretical studies confirm that the maximum possible ground spin state of ST = 83/2 for the Mn19 aggregate is insensitive to replacement of its eight [small mu ]3-N3 ligands by [small mu ]3-Cl, [small mu ]3-Br, [small mu ]3-OH or [small mu ]3-OMe.
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A tetranaphthoimidazolium receptor as a fluorescent chemosensor for phytate

Chem. Commun. - 6 May, 2014 - 20:54

Chem. Commun., 2014, 50,5851-5853
DOI: 10.1039/C4CC02036G, CommunicationMinji Lee, Jong Hun Moon, Eun Jin Jun, Gyoungmi Kim, Yong-Uk Kwon, Jin Yong Lee, Juyoung Yoon
A new tetranaphthoimidazolium receptor showed a selective fluorescence enhancement with phytate, myo-inositol hexakisphosphate (IP6), in 100% aqueous solution at pH 7.4.
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Asymmetric dinuclear bis(dipyrrinato)zinc(II) complexes: broad absorption and unidirectional quantitative exciton transmission

Chem. Commun. - 6 May, 2014 - 20:54

Chem. Commun., 2014, 50,5881-5883
DOI: 10.1039/C4CC01573H, CommunicationMizuho Tsuchiya, Ryota Sakamoto, Shinpei Kusaka, Yasutaka Kitagawa, Mitsutaka Okumura, Hiroshi Nishihara
Asymmetric, heteroleptic dinuclear bis(dipyrrinato)zinc(II) complexes convey excitons quantitatively and rapidly across their structure from one end to the other.
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Highly active AuCo alloy nanoparticles encapsulated in the pores of metal-organic frameworks for hydrolytic dehydrogenation of ammonia borane

Chem. Commun. - 6 May, 2014 - 20:54

Chem. Commun., 2014, 50,5899-5901
DOI: 10.1039/C4CC00785A, CommunicationJun Li, Qi-Long Zhu, Qiang Xu
AuCo alloy nanoparticles encapsulated in the pores of MIL-101 via the double solvents method combined with the overwhelming reduction approach exert excellent catalytic activity for hydrolytic dehydrogenation of ammonia borane.
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The detection of thrombin using a mixture of a fluorescent conjugated polyelectrolyte and fibrinogen and implementation of a logic gate

Chem. Commun. - 6 May, 2014 - 20:54

Chem. Commun., 2014, 50,5833-5836
DOI: 10.1039/C4CC01495B, CommunicationDaigeun Kim, Taek Seung Lee
A highly sensitive and selective detection of thrombin is accomplished using an emission color-tunable conjugated polyelectrolyte. An implementation of a combined logic gate was realized upon emission modulation of the system including the polymer, fibrinogen, thrombin, and heparin.
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Metamagnetic behaviour in a new Cu(II)Re(IV) chain based on the hexachlororhenate(IV) anion

Chem. Commun. - 6 May, 2014 - 20:54

Chem. Commun., 2014, 50,5840-5842
DOI: 10.1039/C4CC01564A, CommunicationJose Martinez-Lillo, John Kong, Wdeson P. Barros, Juan Faus, Miguel Julve, Euan K. Brechin
A new chloro-bridged heterobimetallic Cu(II)Re(IV) chain of formula {Cu(pyim)(Him)2ReCl6}n[middle dot]MeCN (1[middle dot]MeCN) has been prepared and magnetostructurally studied. This is the first example of the hexachlororhenate(IV) anion acting as a metalloligand towards a paramagnetic metal ion.
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