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322 Newest Publications in chemical communication

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Reversible Thermo-sensitivity Induced from Varied Hydrogen Bonding between Side Residues of Rationally Designed Polypeptides

20-May-2015 | Hong Liu; Yan Xiao; Heng Xu; Yebin Guan; Jun Zhang; Meidong Lang, Chemical Communication, 2015

Rationally designed polypeptides with similar molecular structure but varying patterns of hydrogen bonding between side groups have been synthesized and demonstrated to possess distinct solubility and thermal behavior. Further balancing the ratio of both isopropylamine and ethylenediamine side ...

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Supramolecular imidazolium frameworks: direct analogues of metal azolate frameworks with charge-inverted node-and-linker structure

20-May-2015 | Cristina Mottillo; Tomislav Friščić, Chemical Communication, 2015

While azolate anions have been extensively used as anionic linkers in framework design, we now demonstrate the synthesis of square-grid networks that utilise their cationic analogues, imidazolium ions, as linkers. The resulting imidazolium frameworks are direct hydrogen-bonded analogues of ...

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Intramolecular B/N Frustrated Lewis Pairs and the Hydrogenation of Carbon Dioxide

20-May-2015 | Marc-André Courtemanche; Alex Pulis; Étienne Rochette; Marc-André Légaré; Douglas W Stephan; Frederic-Georges Fontaine, Chemical Communication, 2015

The FLP species 1-BR2-2-NMe2-C6H4 (R = 2,4,6-Me3C6H2 1, 2,4,5-Me3C6H2 2) react with H2 in sequential hydrogen activation and protodeborylation reactions to give (1-BH2-2-NMe2-C6H4)2 3. While 1 reacts with H2/CO2 to give formyl, acetal and methoxy-derivatives, 2 reacts with H2/CO2 to give ...

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A Supramolecular Approach to Improve the Gene Transfection Efficacy of Dendrimers

13-May-2015 | Naimin Shao; Tianjiao Dai; Yan Liu; Yiyun Cheng, Chemical Communication, 2015

Cyanuric acid is able to form complementary hydrogen bonds with melamine. Here, the specific recognition between cyanuric acid and melamine is used to significantly improve the gene transfection efficacy of low generation dendrimer via a supramolecular approach.

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Tailoring Metal-oxide Interfaces of Inverse Catalysts of TiO2/Nanoporous Au under Hydrogen Oxidation

08-May-2015 | Kamran Qadir; Bui Thi Phuong Quynh; Hyosun Lee; Song Yi Moon; Sang Hoon Kim; Jeong Y. Park, Chemical Communication, 2015

Engineering Metal-oxide interfaces in TiO2-nanoporous (np) Au inverse catalyst results in enhancement of H2 oxidation activity. While intrinsic activity of novel np-Au prepared from Au-Si alloy is low, the activity increased as the weight fraction of the TTIP (amount of TiO2) was increased to 0.5 ...

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Incorporation of ammonium fluoride into clathrate hydrate lattices and its significance for inhibiting hydrate formation

07-May-2015 | Seongmin Park; Dongwook Lim; Yongwon Seo; Huen Lee, Chemical Communication, 2015

The stability of hydrate frameworks is influenced by guest molecules capable of hydrogen bonding with surrounding water molecules. Four remarkable features from the ammonium fluoride incorporation into a crystalline hydrate matrix provide important information on the thermodynamic stability, ...

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Thioamides in the collagen triple helix

07-May-2015 | Robert W. Newberry; Brett VanVeller; Ronald T. Raines, Chemical Communication, 2015

To probe noncovalent interactions within the collagen triple helix, backbone amides were replaced with a thioamide isostere. This subtle substitution is the first in the collagen backbone that does not compromise thermostability. A triple helix with a thioamide as a hydrogen bond donor was found ...

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Synthesis of nanostructured clean surface molybdenum carbides on graphene sheets as efficient and stable hydrogen evolution reaction catalysts

07-May-2015 | Chunyong He; Juzhou Tao, Chemical Communication, 2015

Small size molybdenum carbides (2.5 nm for MoC and 5.0 nm for Mo2C) with clean surface on graphene were prepared for efficient and stable hydrogen evolution reaction catalysts.

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Unification of catalytic oxygen reduction and hydrogen evolution reactions: highly dispersive Co nanoparticles encapsulated inside Co and nitrogen co-doped carbon

06-May-2015 | Y. Wang; Y. Nie; W. Ding; S. G. Chen; K. Xiong; X. Q. Qi; Y. Zhang; J. Wang; Z. D. Wei, Chemical Communication, 2015

The Co nanoparticles encapsulated inside Co and nitrogen co-doped carbon catalysts with small particle size and homogenous distribution of Co NPs were elaborately synthesized, which exhibit evidently outstanding activity and stability toward ORR/HER.

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Impact of a conductive oxide core in tungsten sulfide-based nanostructures on the hydrogen evolution reaction

29-Apr-2015 | Bora Seo; Hu Young Jeong; Sung You Hong; Alla Zak; Sang Hoon Joo, Chemical Communication, 2015

Tungsten oxide/tungsten sulfide (W18O49@WS2) core–shell nanorods prepared via a controlled sulfidization reaction of W18O49 nanowhiskers showed hydrogen evolution reaction (HER) activity superior to WS2 nanotubes, indicating the critical role of a highly conductive oxide core in enhancing HER ...

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