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971.
Reza Omidyan Maryam Abbasi Gholamhassan Azimi 《International journal of quantum chemistry》2019,119(3):e25793
New platinum(II) complex with picolinate (pic) and 2-phenyl naphtothiazole (pntl) ligand as the guest material has been designed and its capability for OLED applications have been examined. Also, we have studied the effects of different substitutions (ie, electron-withdrawing and electron donating groups) on naphtothiazole moiety on optovoltaic characters. We have employed density functional theoretical (B3LYP/DFT) methods to reveal the photophysical and structure properties relationships with the typical host material. The valence MO energies, vertical and adiabatic triplet energy, reorganization energy, and triplet exciton generation fraction (χ T) have been extensively studied to exploring high phosphorescence efficiency in OLEDs. It has been predicted that substituted systems are good candidates for OLED applications as well as their parent system. 相似文献
972.
The reduction of 4‐nitrophenol and 2‐nitroaniline by palladium catalyst based on a KCC‐1/IL in aqueous solution
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Sakineh Esfandiari Baghbamidi Asadollah Hassankhani Esmael Sanchooli Seyed Mohsen Sadeghzadeh 《应用有机金属化学》2018,32(4)
KCC‐1/IL/Pd NPs can used as an excellent support for the synthesis of highly sparse homogeneous catalyst. KCC‐1 has high surface area that was functionalized with ionic liquid phase acting as the strong performers so that the Pd catalyst was well‐dispersed without aggregation on the framework of the KCC‐1/IL. This nano catalyst was specified by TGA, XRD, TEM, SEM, FT‐IR, and ICP. For reduction of 2‐nitroaniline and 4‐nitrophenol used from the KCC‐1/IL/Pd NPs as a green catalyst that showed excellent catalytic activities. Compared with the traditional substrate, KCC‐1 substantially increases protection and the accessibility of the nanoparticle sites due to its three dimensional hierarchical structure. 相似文献
973.
974.
Abbas Dechal Mostafa Khoshsefat Saeid Ahmadjo Seyed Mohammad Mahdi Mortazavi Gholam Hossein Zohuri Hossein Abedini 《应用有机金属化学》2018,32(6)
Polymerization of 1‐hexene was carried out using a mononuclear (MN) catalyst and two binuclear (BN1 and BN2) α‐diimine Ni‐based catalysts synthesized under controlled conditions. Ethylaluminium sesquichloride (EASC) was used as an efficient activator under various polymerization conditions. The highly active BN2 catalyst (2372 g poly(1‐hexene) (PH) mmol?1 cat) in comparison to BN1 (920 g PH mmol?1 cat) and the MN catalyst (819 g PH mmol?1 cat) resulted in the highest viscosity‐average molecular weight (Mv) of polymer. Moreover, the molecular weight distribution (MWD) of PH obtained using BN2/EASC was slightly broader than those obtained using BN1 and MN (2.46 for BN2 versus 2.30 and 1.96 for BN1 and MN, respectively). These results, along with the highest extent of chain walking for BN2, were attributed to steric, nuclearity and electronic effects of the catalyst structures which could control the catalyst behaviour. Differential scanning calorimetry showed that the glass transition temperatures of polymers were in the range ? 58 to ?81 °C, and broad melting peaks below and above 0 °C were also observed. In addition, longer α‐olefins (1‐octene and 1‐decene) were polymerized and characterized, for which higher yield, conversion and molecular weight were observed with a narrower MWD. The polymerization parameters such as polymerization time and polymerization temperature showed a significant influence on the productivity of the catalysts and Mv of samples. 相似文献
975.
Nano-Mg- [4-methoxy phenylsalicylaldiminemethylpyranopyrazole]Cl2 (nano-[Mg-4MSMP]Cl2) as a nano-Schiff base complex was prepared and fully characterized using some various techniques including fourier transform infrared spectroscopy (FT-IR), energy-dispersive x-ray spectroscopy (EDS), X-ray diffraction (XRD), thermal gravimetric analysis (TGA), differential thermal gravimetric analysis (DTA), mass spectroscopy (MS) and scanning electron microscopy (SEM). Nano-[Mg-4MSMP]Cl2 was successfully used as an efficient catalyst for the preparation of some 1-(α-aminoalkyl) -2 -naphthols. 相似文献
976.
Chen Zhixiong Shahrajabian Hamzeh Bagherzadeh Seyed Amin Maleki Alireza Bach Quang-Vu 《Journal of Thermal Analysis and Calorimetry》2020,141(1):421-433
Journal of Thermal Analysis and Calorimetry - This study attempts to develop a high-performance wood plastic composite (WPC) in terms of impact strength, tensile strength, and tensile modulus. For... 相似文献
977.
Using Rindler method we derive the logarithmic correction to the entanglement entropy of a two dimensional BMS-invariant field theory (BMSFT). In particular, we present a general formula for extraction of the logarithmic corrections to both the thermal and the entanglement entropies. We also present a CFT formula related to the logarithmic correction of the BTZ inner horizon entropy which results in our formula after taking appropriate limit. 相似文献
978.
Marco Masi Seyed Arash Moeini Angela Boari Alessio Cimmino Maurizio Vurro 《Natural product research》2018,32(13):1611-1615
Cavoxin is a tetrasubstituted phytotoxic chalcone and cavoxone is the corresponding chroman-4-one, both produced in vitro by Phoma cava, a fungus isolated from chestnut. Cavoxin showed biofungicide potential against fungal species responsible for food moulding. Therefore, cavoxin has potential to be incorporated into biopolymer to generate ‘intelligent food packaging’. To reach this objective, large-scale production of cavoxin by P. cava fermentation needs to be optimized. A rapid and efficient method for cavoxin analysis, as well as of cavoxone, in the fungal culture filtrates and the corresponding organic extracts is the first experimental step. Thus, a HPLC method was developed and applied to quantify cavoxin and cavoxone production in two different fungal culture conditions. The analysis proved that cavoxin production in stirred culture filtrates is significantly higher than in static ones. 相似文献
979.
Kamil Reza K. Azahar Ali Md. Singh Manish Kumar Agrawal Ved Varun Biradar A. M. 《Mikrochimica acta》2017,184(6):1809-1816
Microchimica Acta - The authors describe a nanostructured hybrid platform for amperometic determination of the plasticizer bisphenol A (BPA). It consists of two dimensional sheets of reduced... 相似文献
980.
Structural Chemistry - In this study, based on new designed and reported molecules with chemical formula of C13H13B2N, novel electrically and optically active oligomers with different size were... 相似文献