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774 Newest Publications about the topic iso

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Structural transformation and tuning behavior induced by the propylamine concentration in hydrogen clathrate hydrates

09-Dec-2014 | Seongmin Park; Hyery Kang; Kyuchul Shin; Yutaek Seo; Huen Lee, Physical Chemistry Chemical Physics, 2014

The structures and the guest–host distributions of iso-propylamine (i-PA) and n-propylamine (n-PA) hydrates with hydrogen as a secondary guest were identified by powder X-ray diffraction and Raman spectroscopic analysis. The structure of 11.1 mol% i-PA + H2 hydrate was identified to be hexagonal ...

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Tailoring Porphyrin-Based Electron Accepting Materials for Organic Photovoltaics

08-Dec-2014 | Jeff Rawson; Andrew C. Stuart; Wei You; Michael J. Therien, Journal of the American Chemical Society, 2014

The syntheses, potentiometric responses, optical spectra, electronic structural properties, and integration into photovoltaic devices are described for ethyne-bridged isoindigo-(porphinato)zinc(II)-isoindigo chromophores built upon either electron-rich 10,20-diaryl porphyrin (Ar-Iso) or ...

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The tantalum-catalyzed carbozincation of 1-alkenes with zinc dialkyls

07-Dec-2014 | Author(s): Rifkat M. Sultanov , Elena V. Samoilova , Natal'ya R. Popod'ko , Denis Sh. Sabirov , Usein M. Dzhemilev, Journal of Organometallic Chemistry, 2014

Publication date: 15 January 2015 Source:Journal of Organometallic Chemistry, Volume 776 Author(s): Rifkat M. Sultanov , Elena V. Samoilova , Natal'ya R. Popod'ko , Denis Sh. Sabirov , Usein M. Dzhemilev The TaCl5-mediated reaction between monosubstituted alkenes and Et2Zn affords ...

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Molecular Simulations Shed Light on Supersoft Elasticity in Polydomain Liquid Crystal Elastomers

05-Dec-2014 | Gregor Skačej; Claudio Zannoni, Macromolecules, 2014

Liquid crystal elastomers (LCE)—polymer networks constructed with liquid crystal units—are functional materials characterized by a pronounced coupling between elastic strain and liquid crystalline orientational ordering. When prepared by polymerization and cross-linking in the isotropic phase, ...

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Actinide selectivity of 1,10-phenanthroline-2,9-dicarboxamide and its derivatives: a theoretical prediction followed by experimental validation

03-Dec-2014 | Debashree Manna; Soumyaditya Mula; Arunasis Bhattacharyya; Subrata Chattopadhyay; Tapan K. Ghanty, Dalton Transactions, 2014

The conventional concept of selective complexation of actinides with soft donor ligands (either S or N donor) has been modified here through exploiting the concept, “intra-ligand synergism”, where a hard donor atom, such as oxygen preferentially binds to trivalent actinides [An(iii)] as compared ...

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Comparative Characterization of the Lactimidomycin and iso-Migrastatin Biosynthetic Machineries Revealing Unusual Features for Acyltransferase-less Type I Polyketide Synthases and Providing an Opportunity To Engineer New Analogues

01-Dec-2014 | Jeong-Woo Seo; Ming Ma; Thomas Kwong; Jianhua Ju; Si-Kyu Lim; Hui Jiang; Jeremy R. Lohman; Chunying Yang; John Cleve ..., Biochemistry, 2014

Lactimidomycin (LTM, 1) and iso-migrastatin (iso-MGS, 2) belong to the glutarimide-containing polyketide family of natural products. We previously cloned and characterized the mgs biosynthetic gene cluster from Streptomyces platensis NRRL 18993. The iso-MGS biosynthetic machinery featured an ...

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Determination of flavonoids, phenolic acid and polyalcohol in Butea monosperma and Hedychium coronarium by semi-preparative HPLC Photo Diode Array (PDA) Detector

30-Nov-2014 | Author(s): Jignasu P. Mehta , Chintan V. Pandya , Pravin H. Parmar , Sohil H. Vadia , Balubhai A. Golakiya, Arabian Journal of Chemistry, 2014

Publication date: December 2014 Source:Arabian Journal of Chemistry, Volume 7, Issue 6 Author(s): Jignasu P. Mehta , Chintan V. Pandya , Pravin H. Parmar , Sohil H. Vadia , Balubhai A. Golakiya The semi preparative HPLC method with PDA Detector was proposed for the determination of one ...

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Novel Acyloxy Derivatives of Branched Mono- and Polyol Esters of Sal Fat: Multiviscosity Grade Lubricant Base Stocks

26-Nov-2014 | Kotte Kamalakar; Gorantla N. V. T. Sai Manoj; Rachapudi B. N. Prasad; Mallampalli S. L. Karuna, Journal of Agricultural and Food Chemistry, 2014

Sal fat, a nontraditional seed oil, was chemically modified to obtain base stocks with a wide range of specifications that can replace mineral oil base stocks. Sal fatty acids were enriched to 72.6% unsaturation using urea adduct method and reacted with branched mono alcohol, 2-ethylhexanol ...

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Overall stability analysis of oversized steel‐framed buildings in a fire

25-Nov-2014 | Guowei Zhang, Guoqing Zhu, Guanglin Yuan, Qing Li, Fire and Materials, 2014

SUMMARY Our present paper summarizes the shortcomings in the current fire‐resistant design of oversized steel structures and proposes a method for overall stability analysis of steel structures in the event of fire. The Fire Dynamics Simulator (FDS) software platform–based large‐eddy ...

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Structural Transformation and Tuning Behavior Induced by Propylamine Concentration in Hydrogen Clathrate Hydrates

25-Nov-2014 | Seongmin Park; Hyery Kang; Kyuchul Shin; Yutaek Seo; Huen Lee, Physical Chemistry Chemical Physics, 2014

The structures and the guest-host distributions of iso-propylamine (i-PA) and n-propylamine (n-PA) hydrates with hydrogen as a secondary guest were identified by the powder X-ray diffraction and the Raman spectroscopic analysis. The structure of the i-PA 11.1 mol% + H2 hydrate was identified to ...

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