Three complexes containing 2-pyrazinecarboxylate(pzca–), including [Ni(pzca)2(H2O)2], [Co(pzca)2(H2O)2], and [Cu(pzca)2(H2O)2], have been synthesized and characterized using physicochemical and spectroscopic methods....Three complexes containing 2-pyrazinecarboxylate(pzca–), including [Ni(pzca)2(H2O)2], [Co(pzca)2(H2O)2], and [Cu(pzca)2(H2O)2], have been synthesized and characterized using physicochemical and spectroscopic methods. Furthermore, the structure of each complex was determined by single-crystal X-ray diffraction. All three complexes have an octahedral geometry, where the metal ion chelated by two carboxylate oxygens, two nitrogen atoms belonging to pyrazinic acid molecules, and two oxygen atoms of two water molecules. The catalytic activities of these complexes were also investigated in the green synthesis of 2H-indazolo[2,1-b]phthalazine-triones by the reaction of hydrazine hydrate with an arylaldehyde, phthalic anhydride, and dimedone in acetic acid.展开更多
The prevalence of cancer,especially in industrial countries,is a major problem for health and treatment systems.Cancer can affect the quality of life of all family members and has many negative effects on the communit...The prevalence of cancer,especially in industrial countries,is a major problem for health and treatment systems.Cancer can affect the quality of life of all family members and has many negative effects on the community.Despite many advances in cancer treatment,this disease is still a major worldwide problem.There is strong evidence that dietary habits are effective in protecting against cancer and even helping in the disease treatment progress.Nuts with various biologically-active compounds,such as vitamins,phytosterols,isoflavones,flavonoids,and polyphenols have been reported to possess anticarcinogenic properties.Accordingly,this review provides an insight into the association between nut consumption and the prevention of some cancers.We considered the cancers related to the urogenital and genital tract,gastrointestinal tract,as well as women-related cancers.Both cell culture examinations and experimental animal studies alongside observational epidemiological studies demonstrated that regular consumption of a nut-enriched diet is able to reduce the risk of these cancers.展开更多
基金financial support provided for this work by the Shahid Bahonar University of Kerman and PNUsupport of NSF-MRI Grant #1228232 for the purchase of the diffractometer and of Tulane University for the Tulane Crystallography Laboratory is gratefully acknowledged
文摘Three complexes containing 2-pyrazinecarboxylate(pzca–), including [Ni(pzca)2(H2O)2], [Co(pzca)2(H2O)2], and [Cu(pzca)2(H2O)2], have been synthesized and characterized using physicochemical and spectroscopic methods. Furthermore, the structure of each complex was determined by single-crystal X-ray diffraction. All three complexes have an octahedral geometry, where the metal ion chelated by two carboxylate oxygens, two nitrogen atoms belonging to pyrazinic acid molecules, and two oxygen atoms of two water molecules. The catalytic activities of these complexes were also investigated in the green synthesis of 2H-indazolo[2,1-b]phthalazine-triones by the reaction of hydrazine hydrate with an arylaldehyde, phthalic anhydride, and dimedone in acetic acid.
文摘The prevalence of cancer,especially in industrial countries,is a major problem for health and treatment systems.Cancer can affect the quality of life of all family members and has many negative effects on the community.Despite many advances in cancer treatment,this disease is still a major worldwide problem.There is strong evidence that dietary habits are effective in protecting against cancer and even helping in the disease treatment progress.Nuts with various biologically-active compounds,such as vitamins,phytosterols,isoflavones,flavonoids,and polyphenols have been reported to possess anticarcinogenic properties.Accordingly,this review provides an insight into the association between nut consumption and the prevention of some cancers.We considered the cancers related to the urogenital and genital tract,gastrointestinal tract,as well as women-related cancers.Both cell culture examinations and experimental animal studies alongside observational epidemiological studies demonstrated that regular consumption of a nut-enriched diet is able to reduce the risk of these cancers.
