Positive Identification of UV-Generated, Non-Hydrogen-Bonded Isomers of o-Hydroxybenzaldehyde and o-Hydroxyacetophenone
نویسندگان
چکیده
منابع مشابه
Positive identification of UV-generated, non-hydrogen-bonded isomers of o-hydroxybenzaldehyde and o-hydroxyacetophenone.
Non-hydrogen-bonded isomers were photogenerated by UV (lambda > 335 nm) irradiation of o-hydroxybenzaldehyde (salicylaldehyde) and o-hydroxyacetophenone monomers isolated in low-temperature Ar matrixes. These photoisomerizations were found to be photoreversible. Upon shorter wavelength (lambda > 235 nm or lambda > 270 nm) UV irradiation, the initial forms of the compounds (with intramolecular h...
متن کاملIsolation, identification and biodiversity of endophytic fungi o Thymus
Endophytes are considered as an important source of bioactive natural products because thesemicroorganisms are able to occupy unique biological niches and grow in non-ordinaryenvironments. Therefore, endophytic fungi of medicinal plants can be developed for medicinalapplications. On the other hand, medicinal properties of plant can be ascribed to its endophyticfungi. Thymus sp. is widely used a...
متن کاملSemi-flexible hydrogen-bonded and non-hydrogen bonded lattice polymers
We investigate the addition of stiffness to the lattice model of hydrogen-bonded polymers in two and three dimensions. We find that, in contrast to polymers that interact via a homogeneous short-range interaction, the collapse transition is unchanged by any amount of stiffness: this supports the physical argument that hydrogen bonding already introduces an effective stiffness. Contrary to possi...
متن کاملcommuting and non -commuting graphs of finit groups
فرض کنیمg یک گروه غیر آبلی متناهی باشد . گراف جابجایی g که با نماد نمایش داده می شود ،گرافی است ساده با مجموعه رئوس که در آن دو راس با یک یال به هم وصل می شوند اگر و تنها اگر . مکمل گراف جابجایی g راگراف نا جابجایی g می نامیم.و با نماد نشان می دهیم. گرافهای جابجایی و ناجابجایی یک گروه متناهی ،اولین بار توسطاردوش1 مطرح گردید ،ولی در سالهای اخیر به طور مفصل در مورد بحث و بررسی قرار گرفتند . در ،م...
15 صفحه اولHydrolysis of O-Acetyl-ADP-ribose Isomers
O-Acetyl-ADP-ribose (OAADPr), produced by the Sir2-catalyzed NAD -dependent histone/protein deacetylase reaction, regulates diverse biological processes. Interconversion between two OAADPr isomers with acetyl attached to the C-2 and C-3 hydroxyl of ADP-ribose (ADPr) is rapid. We reported earlier that ADP-ribosylhydrolase 3 (ARH3), one of three ARH proteins sharing structural similarities, hydro...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Physical Chemistry A
سال: 2010
ISSN: 1089-5639,1520-5215
DOI: 10.1021/jp1003775