Chem. Commun.

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Unprecedented redox-driven ligand ejection in nickel(II)-diiminosemiquinonate radical complexes

1 January, 2014 - 13:54
Chem. Commun., 2013, Accepted Manuscript
DOI: 10.1039/C3CC48549H, CommunicationNicolas Leconte, Jeremie Ciccione, Gisele Gellon, Christian Philouze, Fabrice Thomas
Nickel(II) complexes of (M:L) stoichiometries 1:1 (1) and 1:2 (2) were prepared from a polydentate ligand involving diiminosemiquinonate radicals. Both were characterized by X-ray diffraction, Vis-NIR and EPR spectroscopy as...
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Brilliant sandwich type fluorescent nanostructure incorporating compact quantum dots layer and versatile silica substrates

1 January, 2014 - 13:54
Chem. Commun., 2013, Accepted Manuscript
DOI: 10.1039/C3CC48405J, CommunicationLiang Huang, Qiong Wu, Jing Wang, Mohamed Frahat Foda, Jiawei Liu, Kai Cai, Heyou Han
A "hydrophobic layer in silica" structure was designed to integrate compact quantum dots (QDs) layer with high quantum yield into scalable silica hosts containing desired functionality, which was based on...
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Amino-acid-linked platinum(II) analogues have altered specificity for RNA compared to cisplatin

1 January, 2014 - 13:54
Chem. Commun., 2013, Accepted Manuscript
DOI: 10.1039/C3CC49035A, CommunicationKeshab Rijal, Xun Bao, Christine S Chow
Cisplatin can be modified with various ligands to alter the size and charge distribution of the complex. Several amino-acid-linked platinum(II) complexes were synthesized, and a reactivity study with 16S ribosomal...
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Covalent Attachment and Release of Small Molecules from Functional Polyphenylene Dendrimers

1 January, 2014 - 13:54
Chem. Commun., 2013, Accepted Manuscript
DOI: 10.1039/C3CC48741E, CommunicationBrenton A. G. Hammer, Martin Baumgarten, K Muellen
Abstract: Herein, we report the synthesis of 2nd generation PPDs functionalized with free thiol moieties within the scaffold, which were used as anchor points for the covalent attachment of guest...
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Liquid Crystal Polymer Based Single Layer Chemo-responsive Actuator

1 January, 2014 - 13:54
Chem. Commun., 2013, Accepted Manuscript
DOI: 10.1039/C3CC48409B, CommunicationTahseen Kamal, Soo-Young Park
A single layer, mono-component, fast, stable, and controllable curling motion actuator from a mixture of di-acrylate mesogenic monomer and 5CB is prepared by photo-polymerization induced phase separation method. This actuator...
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Dramatic Reduction in Activation Barrier for Dinitrogen Splitting Using Amine-Borane as Hydrogen Carrier: Insights from DFT Study

1 January, 2014 - 13:54
Chem. Commun., 2013, Accepted Manuscript
DOI: 10.1039/C3CC48285E, CommunicationTanmay Malakar, Ankan Paul
DFT based mechanistic investigations on a silica surface supported Tantalum system reveal that there is a significant reduction in free energy activation barrier for N[identical with]N bond dissociation on using a...
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A naphthalene-containing amino acid enables hydrogelation of a conjugate of nucleobase-saccharide-amino acids

1 January, 2014 - 13:54
Chem. Commun., 2013, Accepted Manuscript
DOI: 10.1039/C3CC48946A, CommunicationDongdong Wu, Jie Zhou, Junfeng Shi, Xuewn Du, Bing Xu
Here we report the first example of a hydrogelator made of the conjugate of nucleobase-saccharide-amino acids by incorporating L-3-(2-naphthyl)-alanine to the conjugate, which illustrates a facile and effective method for...
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Palladium catalysed [small beta]-selective oxidative Heck reaction of an electron-rich olefin

1 January, 2014 - 13:54

Chem. Commun., 2014, 50,1110-1112
DOI: 10.1039/C3CC47045H, CommunicationLingkui Meng, Chao Liu, Wei Zhang, Chao Zhou, Aiwen Lei
Through a palladium-catalysed oxidative Heck reaction, a [small beta]-selective arylation of an electron rich olefin with arylboronic acids was achieved.
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A sensitive and visible fluorescence-turn-on probe for the CMC determination of ionic surfactants

1 January, 2014 - 13:54

Chem. Commun., 2014, 50,1107-1109
DOI: 10.1039/C3CC45244A, CommunicationQiuhua Zhu, Lan Huang, Jingru Su, Shuwen Liu
THP-1 shows no emission in micelles but strong AIE in solution and detects CMC via the inflexion with strongest fluorescence.
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Highly specific enrichment of N-linked glycopeptides based on hydrazide functionalized soluble nanopolymers

1 January, 2014 - 13:54

Chem. Commun., 2014, 50,1027-1029
DOI: 10.1039/C3CC47347C, CommunicationLijuan Zhang, Hucong Jiang, Jun Yao, Yali Wang, Caiyun Fang, Pengyuan Yang, Haojie Lu
Hydrazide functionalized PAMAM was synthesized for selective enrichment of N-linked glycopeptides from biological samples using FASP (filter-aided sample preparation) mode.
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Magnesium(II)-catalyzed asymmetric hetero-Diels-Alder reaction of Brassard's dienes with isatins

1 January, 2014 - 13:54

Chem. Commun., 2014, 50,994-996
DOI: 10.1039/C3CC47800A, CommunicationJianfeng Zheng, Lili Lin, Yulong Kuang, Jiannan Zhao, Xiaohua Liu, Xiaoming Feng
The first catalytic asymmetric hetero-Diels-Alder reaction of Brassard's dienes with isatins was realized using Mg(II)/N,N[prime or minute]-dioxide complexes as catalysts, affording the corresponding chiral spirolactones bearing tetrasubstituted centers in up to 99% yield with up to 99% ee and >99 : 1 dr within 3 hours.
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Enhancement of spin-crossover cooperativity mediated by lone pair-[small pi] interactions and halogen bonding

1 January, 2014 - 13:54

Chem. Commun., 2014, 50,1003-1005
DOI: 10.1039/C3CC48334G, CommunicationNassim Nassirinia, Saeid Amani, Simon J. Teat, Olivier Roubeau, Patrick Gamez
Rational ligand design has allowed the generation of a highly cooperative spin-transition iron(II) complex, an unprecedented result in the family of (2,2[prime or minute]-dipyridylamino/s-triazine)-based SCO materials.
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Programmed hydrolysis of nanoassemblies by electrostatic interaction-mediated enzymatic-degradation

1 January, 2014 - 13:54

Chem. Commun., 2014, 50,968-970
DOI: 10.1039/C3CC46013D, CommunicationSandani Samarajeewa, Ryan P. Zentay, Nema D. Jhurry, Ang Li, Kellie Seetho, Jiong Zou, Karen L. Wooley
At physiological pH, polymer nanoparticles having degradable-core and charged-shell morphologies readily attract or repel enzymes carrying opposite or similar charges, respectively.
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Atomic-scale insight into the formation, mobility and reaction of Ullmann coupling intermediates

24 December, 2013 - 11:54

Chem. Commun., 2014, 50,1006-1008
DOI: 10.1039/C3CC47002D, CommunicationEmily A. Lewis, Colin J. Murphy, Melissa L. Liriano, E. Charles H. Sykes
Molecular-scale imaging reveals that the surface-catalyzed Ullmann coupling of bromobenzene occurs via a mobile organometallic intermediate composed of a single Cu atom complexed by two phenyl groups.
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A novel nonanuclear hafnium oxide-hydroxide-sulphate cluster crystallised from aqueous solution

24 December, 2013 - 11:54

Chem. Commun., 2014, 50,997-999
DOI: 10.1039/C3CC48167K, CommunicationA. Kalaji, L. Soderholm
Single crystals of (NH4)14[Hf9O8(OH)6(SO4)14][middle dot]nH2O (1) were obtained by heating a sealed aqueous solution of HfOCl2[middle dot]8H2O, (NH4)2SO4 and H2SO4 at 80 [degree]C for 10 days. The discrete [Hf9O8(OH)6(SO4)14]14- anionic clusters have no inter-cluster connectivity. This rare nonameric architecture has only been observed previously in two Bi3+ oxo clusters.
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Discovery of new G-quadruplex binding chemotypes

24 December, 2013 - 11:54

Chem. Commun., 2014, 50,960-963
DOI: 10.1039/C3CC48616H, CommunicationStephan A. Ohnmacht, Ehsan Varavipour, Rupesh Nanjunda, Ingrida Pazitna, Gloria Di Vita, Mekala Gunaratnam, Arvind Kumar, Mohamed A. Ismail, David W. Boykin, W. David Wilson, Stephen Neidle
We report a novel furan-based low molecular weight chemotype with high G-quadruplex affinity and potent anti-proliferative activity.
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Corona charge selective micelle degradation catalyzed by P. cepacia lipase isoforms

24 December, 2013 - 11:54

Chem. Commun., 2014, 50,964-967
DOI: 10.1039/C3CC47740A, CommunicationXiaobo Zhu, Michael Fryd, Ann M. Valentine, Bradford B. Wayland
Kinetic studies of P. cepacia lipase catalyzed degradation of HO-PCLn-b-PEG32-RX block copolymer micelles with charged groups placed on the corona terminus resulted in detecting the presence of two lipase isoforms that manifest complementary micelle corona charge selective catalysis.
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Hydrogenase biomimetics: Fe2(CO)4([small mu ]-dppf)([small mu ]-pdt) (dppf = 1,1[prime or minute]-bis(diphenylphosphino)ferrocene) both a proton-reduction and hydrogen oxidation catalyst

24 December, 2013 - 11:54

Chem. Commun., 2014, 50,945-947
DOI: 10.1039/C3CC46456C, CommunicationShishir Ghosh, Graeme Hogarth, Nathan Hollingsworth, Katherine B. Holt, Shariff E. Kabir, Ben E. Sanchez
The diiron complex Fe2(CO)4([small mu ]-dppf)([small mu ]-pdt) is an active catalyst for both the reduction of protons to give hydrogen and also the reverse oxidation of hydrogen and thus mimics hydrogenases which are able to catalyse both reactions.
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