نتایج جستجو برای: structural chemistry
تعداد نتایج: 496764 فیلتر نتایج به سال:
Symmetry is treated as a continuous property and a Continuous Symmetry Measure (CSM) of structures is de ned. The CSM of a structure is de ned to be the minimummean squared distance required to move points of the original structure and change it to a symmetrical structure. This general de nition of a symmetrymeasure enables a comparison of the amount of symmetry of di erent shapes and the amoun...
In this study, the carbyne complex, OsCl3(=CCH2CMe3)(PH3)2, structural, themochemical andelectronic properties were studied in solution and gas phases. For this investigation, the chosensolvents were five solvents (methanol, acetone, ethanol, DMSO, nitromethane) with variouspolarities. The influence of solvent polarity on the thermodynamic, structural, solvation energyparameters and frontier or...
The use of plant extract in the biosynthesis of nanoparticles (NPs) can be an eco-friendly approach and have been suggested as a possible alternative to classic methods namely physical and chemical procedures. This study was designed to examine the structural chemistry of silver nanoparticles (AgNPs) using both conventional heating and microwave irradiation methods.To o...
increasing academic and professional language demands around the world are not a deniable fact. the purpose of this study was to investigate english language needs and communication needs of the chemistry students at master and ph.d. levels at the iranian universities. in this research, different methods were used including un-structured interview, structured interview, and two sets of question...
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