نتایج جستجو برای: heteroatom rahb

تعداد نتایج: 1198  

2014
Whelton A. Miller Preston B. Moore

Polyphosphazenes, because of their unique properties, have generated many opportunities to explore a variety of applications. These applications include areas such as biomedical research (e.g. drug delivery) and material science (e.g. fire-resistant polymers). Phosphazenes potentially have more variations then benzene analogues because of different substitution patterns. Here we present A compu...

2010
Huaxiong Chen Lijie Li Sufen Liu Shusen Chen Shaohua Jin

The title compound, C(7)H(7)N(11)O(11)·C(3)H(6)O, consisting of one mol-ecule of 10-formyl-2,4,6,8,12-penta-nitro-2,4,6,8,10,12-hexa-azatetra-cyclo-[5.5.0.0(5,9).0(3,11)]dodecane (penta-nitro-mono-form-yl-hexa-aza-isowurtzitane, PNMFIW) and one acetone solvent mol-ecule, is a member of the caged hexa-azaisowurtzitane family. PNMFIW has a cage structure which is constructed from one six-membered...

2016
George S. Pappas Stefania Ferrari Xiaobin Huang Rohit Bhagat David M. Haddleton Chaoying Wan

Long cycle performance is a crucial requirement in energy storage devices. New formulations and/or improvement of "conventional" materials have been investigated in order to achieve this target. Here we explore the performance of a novel type of carbon nanospheres (CNSs) with three heteroatom co-doped (nitrogen, phosphorous and sulfur) and high specific surface area as anode materials for lithi...

Journal: :Journal of visualized experiments : JoVE 2014
Naeem Gulzar Martin Klussmann

The direct functionalization of C-H bonds is an important and long standing goal in organic chemistry. Such transformations can be very powerful in order to streamline synthesis by saving steps, time and material compared to conventional methods that require the introduction and removal of activating or directing groups. Therefore, the functionalization of C-H bonds is also attractive for green...

Journal: :ACS applied materials & interfaces 2015
Xiaoxi Huang Xiaoxin Zou Yuying Meng Eliška Mikmeková Hui Chen Damien Voiry Anandarup Goswami Manish Chhowalla Tewodros Asefa

The use of renewable resources to make various synthetic materials is increasing in order to meet some of our sustainability challenges. Yeast is one of the most common household ingredients, which is cheap and easy to reproduce. Herein we report that yeast cells can be thermally transformed into hollow, core-shell heteroatom-doped carbon microparticles that can effectively electrocatalyze the ...

Journal: :The journal of physical chemistry. A 2009
Prashant U Manohar Lucas Koziol Anna I Krylov

Electronic structure of 2,4,6-tridehydropyridine and isoelectronic 1,3,5-tridehydrobenzene is characterized by the equation-of-motion spin-flip coupled-cluster calculations with single and double substitutions and including perturbative triple corrections. Equilibrium geometries of the three lowest electronic states, vertical and adiabatic states ordering, and triradical stabilization energies ...

2018
Ajaykumar V. Ardhapure Yogesh S. Sanghvi Yulia Borozdina Anant Ramakant Kapdi Carola Schulzke

In the asymmetric unit, equalling the unit cell (triclinic, P1, Z = 1), two mol-ecules of the title compound, 8-(4-methyl-phen-yl)-d-2'-de-oxy-adenosine, C17H19N5O3, are present, with distinct conformations of the two sugar moieties, together with one solvent water mol-ecule. All three ribose O atoms are involved in hydrogen bonding and the crystal packing is largely determined by hydrogen-bond...

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