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9篇 您的检索式:作者名="Ishwar Singh"
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1Oxide ancillary ligand-based europium β-diketonate complexes and their enhanced luminosity显示文摘Ternary materials of europium complex with2,2,6,6-tetramethyl-3,5-heptanedione(tmhd) ligand and aqua ligand as ancillary ligands have been prepared and characterized for various optoelectronic characteristics.Reactions of hydrated complex [Eu(tmhd)_(3)(H_(2)O)_(2)] proceeded with triphenylphosphine oxide(TPPO) and pyridine-N-oxide(PNO) ancillary ligands were studied to develop novel complexes. The prepared complexes show good thermal stability. A comparative investigation of preparedmaterials[Eu(tmhd)_(3)(H_(2)O)_(2)],[Eu(tmhd)_(3)(TPPO)_(2)] and [Eu(tmhd)_(3)(PNO)_(2)] was conducted for their luminescent behaviors in order to obtain the role of ancillary ligand in the enhancement of illumination amount generated from europium(Eu^(3+)) ion. Color coordinates of prepared ternary complexes such as[Eu(tmhd)_(3)(H_(2)O)_(2)]with(x = 0.54,y = 0.32),[Eu(tmhd)_(3)(TPPO)_(2)] with(x = 0.56, y = 0.32) and[Eu(tmhd)_(3)(PNO)_(2)] with(x = 0.57, y = 0.33) indicated that these materials exhibited bright red emission in visible region spectrum. The complexes show a proficient energy transport pathway from the ligands to the innermost Eu^(3+)by means of an ancillary ligand-sensitized luminescence process. Interaction between the metal and ligand results in a distinguished effect on quantum efficiency(η) as well as on Judd–Ofelt intensity factor(Ω_(2)) of the prepared materials.Devender Singh Shri Bhagwan Anuj Dalal Kapeesha Nehra Raman Kumar Saini Kapoor Singh Anura Priyajith Simantilleke Sumit Kumar Ishwar Singh 2021Rare Metals2021,40,10:1
2Designed thiazole orange nucleotids for the synthesis of single labelled oligonucleotides that fluoresce upon matched hybridization显示文摘Bethge Lucas Singh Ishwar Seitz Oliver 2010Organic & Biomolecular Chemistry2010,8,:1
3PTEN -mediated AKT activation contributes to the reduced apoptosis among Indian oral squamous cell carcinoma patients显示文摘Nisreen Sherif Alyasiri Syed Jafar Mehdi M. Shabbir Alam Asgar Ali Ashish K. Mandal Sunita Gupta Ishwar Singh M. Moshahid Alam Rizvi 2012Journal of Cancer Research and Clinical Oncology2012,,1:1
4C Reactive Protein Decrease Tissue Plasminogen Activator Activity in human Aortic Endothelial Cells Evidence that C reactive Protein Is a Procoagulant显示文摘Uma Singh Sridevi Devaraj Ishwaral J 0,,:1
5Role of endoscopic third ventriculostomy in patients with communicating hydrocephalus: an evaluation by MR ventriculography显示文摘Ishwar Singh Mohammad Haris Mazhar Husain Nuzhat Husain Manu Rastogi Rakesh K. Gupta 2008Neurosurgical Review2008,,3:1
6Diastereoselective synthesis of β-aryl -Cmucleosides from 1, 2 anhydrosugars显示文摘Singh Ishwar Seitz Oliver 2006Organic Letters2006,8,19:1
7C - Reactive Protein Decrease Tissue Plasminogen Activator Activity in human Aortic Endothelial Ceils Evidence that C - reactive Protein Is a Procoagulant显示文摘Uma Singh Sridevi Devaraj Ishwaral Jialal 2005Arterioscler Thromb Vasc Biol2005,,:1
8PTEN-mediated AKT activation contributes to the reduced apoptosis among Indian oral squamous cell carcinoma patients显示文摘Nisreen Sherif Alyasiri Syed Jafar Mehdi M. Shabbir Alam Asgar Ali Ashish K. Mandal Sunita Gupta Ishwar Singh M. Moshahid Alam Rizvi 2012Journal of Cancer Research and Clinical Oncology2012,,1:1
9Inhibition of tumor necrosis factor-α transcription in macrophages exposed to febrile range temperature显示文摘Ishwar S Singh R M 2000J Biol Chem2000,275,:1
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