نتایج جستجو برای: niii complex
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در این تحقیق ابتدا یک کمپلکس جدید دو هسته ای(6-methylbipyridineh)[uo2 (no3)2 (?-oh)]2 تهیه شد و با استفاده از تکنیک های مختلف طیفسنجی همانندft-ir ، uv-vis، h-nmr1 و تکنیک ولتامتری چرخه ای (cv) مورد مطالعه و شناسایی قرار گرفت. ساختار بلوری این کمپلکس با روش کریستالوگرافی اشعه x مطالعه شد. این کمپلکس در سیستم تری کلینیک (1=z) با گروه فضایی p? متبلور شده است. در این ترکیب یون های اورانیوم 6+، شکل ...
in daily life, complexity results from countless factors. culture, environment, social and economic status and physical ability all contribute, and all complicate managing ill health. pharmacists bear witness to many of these complexities and increasingly must care for what have come to be known as ‘complex patients’. the issue of ‘complex patients’ is one that has been addressed by healthcar...
Aims. We test the technique of spectro-astrometry as a potential method to investigate the close environment of massive young stars. Methods. Archival VLT near infrared K band spectra (R=8900) of three massive young stellar objects and one Wolf-Rayet star are examined for spectro-astrometric signatures. The young stellar objects display emission lines such as Brγ, CO 2-0 and CO 3-1 that are cha...
The title compound, (C15H14N3)[NiCl4]Cl, comprises an NiII cation tetra-hedrally coordinated by four chloride anions, a non-coordinating chloride anion and an essentially planar terpyridinium trication (tpyH33+), in which the central pyridinium ring forms dihedral angles of 5.7 (2) and 6.0 (2)° with the peripheral pyridinium rings. Three inter-species N-H⋯Cl hydrogen bonds are formed with the C...
New dodecanuclear bimetallic Ni8M4 clusters were obtained in the reaction between octacyanometallates(IV), nickel(II) cations and diimine ligands. {[Ni(LL)(H2O)]2[Ni(LL)(H2O)2]6[M(CN)8]4} assemblies, where LL = 1,10-phenanthroline M = Mo, (1) or LL = 2,2′-bipyridine M = W (2) or Mo (3), are among the largest octacyanometallate-based clusters. They show the same compact topology of the cluster c...
abstract the cr(iii) and zn(ii) complexes with 2-((9,10-dihydro-1-hydroxy-9,10-dioxaanthracen-4-yloxy)carbonyl)benzoic acid as ligand have been prepared by reacting cr(no3) and zn(no3)2 and ligand in cloroform. the cr and zn complexes with 2-((9,10-dihydro-1-hydroxy-9,10-dioxaanthracen-4-yloxy)carbonyl) were also prepared in chloroform and aceton solutions. the uv-visible and ft-ir spectra of...
Two novel 1D coordination chains containing the curcuminoid (CCMoid) ligand 9Accm have been characterized: [Co(9Accm)2(4,4 ́-bpy)]n (1) and [Ni(9Accm)2(4,4 ́-bpy)]n (2). The two compounds were synthesized by solvothermal and microwave (MW) assisted techniques, respectively, and crystals of both systems were directly obtained from the mother solutions. Crystal structures of 1 and 2 prove that both...
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