نتایج جستجو برای: annulene compounds

تعداد نتایج: 226797  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده علوم پایه 1392

اسانس گیاهان (خشک شده در سایه)، tanacetum tenuisectum , tanacetum polycephalum به دو روش: 1- تقطیر با آب 2- برای اولین بار به روش میکرواستخراج فاز جامد در فضای فوقانی گرفته شد و به روش gc/ms مورد آنالیز و شناسایی واقع گردید. عمده ترکیبات اسانس سرشاخه های گلدار گیاه (tanacetum polycephalum) hydrodistillation % compounds 12.07 camphor 10.66 1, 8- cineole 9.57 chrysanthenyl acetate – t...

Journal: :Symmetry 2010
Cristina Gellini Pier Remigio Salvi

The paper introduces general considerations on structural properties of aromatic, antiaromatic and non-aromatic conjugated systems in terms of potential energy along bond length alternation and distortion coordinates, taking as examples benzene, cyclobutadiene and cyclooctatetraene. Pentalene, formally derived from cyclooctatetraene by cross linking, is also considered as a typical antiaromatic...

2015
Kartikeya Tiwari

As far as microbial world concerned on earth, there are large number of domains has shown the potential for various applications. Fungal domain is one of them. Since the discovery of penicillin, various fungi has been harnessed for a large number of applications. Still there is a requirement of novel products for human welfare and development. So what are the fungi of next door? Are the fungal ...

Journal: :Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan 2006
Takahiro Nishimaru

To study the structure-activity relationship of mugineic acid (MA), a phytosiderophore isolated from Hordeum velugare L. var. Minorimugi, several 2-deoxymugineic acid (DMA) analogues were synthesized. 1H-NMR spectra of DMA analogues and their Co(III) complexes were first measured and analyzed to elucidate the structures of metal complexes. CD spectra of the Co(III) and Fe(III) complexes of DMA ...

Journal: :Journal of Physical Organic Chemistry 2018

Journal: :Acta Crystallographica Section A Foundations and Advances 2014

Journal: :Acta Crystallographica Section E Structure Reports Online 2008

2010
John D. Tovar Stephen R. Diegelmann Patricia A. Peart

This article will highlight our recent work using conjugated oligomers as precursors to electroactive polymer films and self-assembling nanomaterials. One area of investigation has focused on nonbenzenoid aromaticity in the context of charge delocalization in conjugated polymers. In these studies, polymerizable pi-conjugated units were coupled onto unusual aromatic cores such as methano[10]annu...

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