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Controlled Linker Dependence of Solution‐ and Solid‐State Emission of Vaulted trans‐Bis(salicylaldiminato)platinum(II) Complexes with Amino Functionalities

12-11-2014 | Naruyoshi Komiya, Minoru Okada, Makoto Hoshino, Ngoc Ha‐Thu Le, Takeshi Naota, European Journal of Inorganic Chemistry, 2014

Abstract The synthesis, structures, and emission properties of vaulted trans‐bis(salicylaldiminato)platinum(II) complexes 1 with diethylamino functionalities are described and compared with the non‐substituted analogues. The amino substitution provides an improvement of the linker dependence ...


Solution Synthesis of Metal Silicide Nanoparticles

12-11-2014 | Joshua M. McEnaney; Raymond E. Schaak, Inorganic Chemistry, 2014

Transition-metal silicides are part of an important family of intermetallic compounds, but the high-temperature reactions that are generally required to synthesize them preclude the formation of colloidal nanoparticles. Here, we show that palladium, copper, and nickel nanoparticles react with ...


Effects of Anions on the Electrodeposition of Cobalt on Pt(111) Electrode

12-11-2014 | Yenchung Kuo; Weicheng Liao; ShuehLin Yau, Langmuir, 2014

Voltammetry and in-situ scanning tunneling microscopy (STM) were used to examine electrodeposition of cobalt (Co) on a stationary Pt(111) electrode in 0.1 M K2SO4 + 1 mM H2SO4 + 10 mM CoSO4 (or the sulfate solution) without and with 10 mM chloride (the chloride solution). Under- and overpotential ...


Anomalous Cage Effect of the Excited State Dynamics of Catechol in the 18-Crown-6–Catechol Host–Guest Complex

11-11-2014 | Fumiya Morishima; Ryoji Kusaka; Yoshiya Inokuchi; Takeharu Haino; Takayuki Ebata, Journal of Physical Chemistry B, 2014

We determined the number of isomers and their structures for the 18-crown-6 (18C6)–catechol host–guest complex, and examined the effect of the complex formation on the S1 (1ππ*) dynamics of catechol under a supersonically cooled gas phase condition and in cyclohexane solution at room temperature. ...


An Aqueous Rechargeable Formate‐Based Hydrogen Battery Driven by Heterogeneous Pd Catalysis

08-11-2014 | Qing‐Yuan Bi, Jian‐Dong Lin, Yong‐Mei Liu, Xian‐Long Du, Jian‐Qiang Wang, He‐Yong He, Yong Cao, Angewandte Chemie International Edition, 2014

Abstract The formate‐based rechargeable hydrogen battery (RHB) promises high reversible capacity to meet the need for safe, reliable, and sustainable H2 storage used in fuel cell applications. Described herein is an additive‐free RHB which is based on repetitive cycles operated between aqueous ...


Stacked Naphthyls and Weak Hydrogen-Bond Interactions Govern the Conformational Behavior of P-Resolved Cyclic Phosphonamides: A Combined Experimental and Computational Study

07-11-2014 | Maria Annunziata M. Capozzi; Francesco Capitelli; Andrea Bottoni; Matteo Calvaresi; Cosimo Cardellicchio, The Journal of Organic Chemistry, 2014

P-Enantiomerically pure cyclic phosphonamides have been synthesized via a cyclization reaction of (S,S)-aminobenzylnaphthols with chloromethylphosphonic dichloride. The reaction is highly stereoselective and gives almost exclusively (S,S,SP)-cyclic phosphonamides in good yields. Analysis of the ...


New Water-Soluble Iridium(I)–N-Heterocyclic Carbene–Tertiary Phosphine Mixed-Ligand Complexes as Catalysts of Hydrogenation and Redox Isomerization

06-11-2014 | Henrietta Horváth; Ágnes Kathó; Antal Udvardy; Gábor Papp; Dorina Szikszai; Ferenc Joó, Organometallics, 2014

Seven new [Ir(NHC)(η4-cod)(L)] complexes (4–9, 11) with NHC = bmim, emim, L = Cl–, H2O, or the water-soluble phosphines mtppms-Na, mtppts-Na3, and pta were synthesized and characterized. Na2[Ir(bmim)(η4-cod)(mtppts)] (6) and [Ir(bmim)(η4-cod)(pta)]Cl (7) actively catalyzed hydrogenation of ...


The structural basis of urea‐induced protein unfolding in β‐catenin

05-11-2014 | Chao Wang, Zhongzhou Chen, Xia Hong, Fangkun Ning, Haolin Liu, Jianye Zang, Xiaoxue Yan, Jennifer Kemp, Catherine A. ..., Acta Crystallographica Section D, 2014

Although urea and guanidine hydrochloride are commonly used to denature proteins, the molecular underpinnings of this process have remained unclear for a century. To address this question, crystal structures of β‐catenin were determined at various urea concentrations. These structures contained ...


WO3 Nanoflakes for Enhanced Photoelectrochemical Conversion

04-11-2014 | Wenjie Li; Peimei Da; Yueyu Zhang; Yongcheng Wang; Xuan Lin; Xingao Gong; Gengfeng Zheng, ACS Nano, 2014

We developed a postgrowth modification method of two-dimensional WO3 nanoflakes by a simultaneous solution etching and reducing process in a weakly acidic condition. The obtained dual etched and reduced WO3 nanoflakes have a much rougher surface, in which oxygen vacancies are created during the ...


How Short is the Strongest Hydrogen Bond in the Proton-Bound Homodimers of Pyridine Derivatives?

03-11-2014 | Andrey A. Gurinov; Stepan B. Lesnichin; Hans-Heinrich Limbach; Ilya G. Shenderovich, Journal of Physical Chemistry A, 2014

Hydrogen bond geometries in the proton-bound homodimers of ortho-unsubstituted and ortho-methylsubstituted pyridine derivatives in aprotic polar solution were estimated using experimental NMR data. Within the series of homodimers studied the hydrogen bond lengths depend on the proton affinity of ...


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