Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 491 for “"metal complexes"”.
-
Insulin - Metal Complexes
Made available in DSpace on 2014-12-05T19:36:04Z (GMT). No. of bitstreams: 1 0010473.pdf: 2644605 bytes, checksum: f22f9842303a77e6ccde280acc539eb8 (MD5) Previous issue date: 1954
-
Some Polymeric Metal Complexes
Made available in DSpace on 2014-12-05T19:37:45Z (GMT). No. of bitstreams: 1 6104292.pdf: 2722080 bytes, checksum: 65621b870ff93430d608f15670458f31 (MD5) Previous issue date: 1961
-
Some metal complexes of dihydroxycyclobutenedione
… and chemical properties of the trivalent metal squarate complexes of iron, vanadium, and indium in order to determine their structure. In this investigation studies were made of the infrared spectra, electronic spectra, x-ray diffraction powder photographs and diffractometer patterns, …
-
Cyanoscorpionates and Transition Metal Complexes.
… characterized by X-ray diffraction. Transition metal complexes of the ligand are currently under investigation.</p>
-
Metal complexes with biological activity
… discovery of cisplatin, the research focused on metal complexes less toxic, more effective and that exploit synergistic effect when used in combination. In this work I studied new copper, zinc and vanadium complexes with biological activity. I tested in vitro the studied compounds alone and in …
-
Transition metal complexes of tetracyclines
Forty-one transition metals were studied to observe their complexing properties with the tetracyclines. Four metals were found to form sufficiently strong complexes with the tetracyclines to provide a basis for a rapid, reliable method of assaying the potency of the tetracycline products used in …
-
Metal complexes involving pyridoxine and pyridoxamine
Solid complexes of pyridoxine with Mn(II) , Cd(II) and Zn(II) have been isolated, as well as compounds containing Cu(II), Ni(II), Co(III), Cd(II) and Zn(II), and pyridoxamine in various protonated forms. Infrared spectra provide evidence for protonation at the pyridine nitrogen site in the …
-
Metal complexes of anti-tubercular drugs
… towards existing drugs. In some cases, metal complexes are known to improve the bioavailability of drugs. Hence the present study looks at the use of metal complexes of anti-tubercular drugs to improve the permeability and bioavailability of the drugs. The anti-tubercular drugs isoniazid …
-
Transition metal complexes of pentadentate ligands
… B₁₂, I [see Figure I], represented below. These complexes might be expected to give some insight as to the behavior and role of the metal ion as it interacts with the five-donor atoms and hence an insight into the role of the metal ion in Vitamin B₁₂. [See Figure I] Compounds formed by the …
-
Structural studies on some bivalent metal complexes.
… structures of (R[3]P)[2]HgX[2] and (R[3]P)HgX[2] complexes have been extended by the determination of the following crystal structures: (1) (Ph[3]P)[2]HgCl[2] (2) (Cy[3]P)HgCl[2]. The structure of (Ph[3]P)[2]HgCl[2] is that of a discrete monomer with a distorted tetrahedral geometry. In comparison …
-
Fluorinated Metal Complexes as MRI Contrast Agents
Magnetic resonance imaging (MRI) is a vital tool in today’s modern healthcare system. MRI is preferred over positron emission tomography (PET) and X-ray computed tomography (CT) because it is non-invasive, non-radioactive, and provides 3-D imaging directly in vivo. Contrast agents are used in order …
-
Synthesis and Reactivity of Polysulfido Metal Complexes
… is the investigation iridium polysulfido complexes. Desulfurization of (NBun4 )Ir(S6)3 with excess PPh3 yields a 30 e-- dimer Ir2S2(PPh4) 4. Crystallographic analysis of Ir2S2(PPh 4)4 reveals a bitetrahedral structure with a pair of mu-S atoms. Two equiv of H2 add to Ir2S2(PPh 4)4 to yield …
-
Metal complexes of penicillin and cephalosporin antibiotics
The interaction between metal-ions and the penicillin and cephalosporin antibiotics have been studied in an attempt to determine both the site and mechanism of this interaction. The solution conformation of the Cu(II) and Mn(II) complexes were determined using an n.m.r, line broadening, technique. …
-
Transition metal complexes containing chelating amido ligands
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1998.
-
METAL COMPLEXES AND THEIR BIOLOGICAL ACTIVITY IN VIVO
Luminescent transition metal complexes (TMCs) represent a class of compounds with remarkable photophysical and electrochemical properties, arising from their unique electronic structures. Complexes containing Pt(II), Ir(III), Ru(II), Cu(I) for example are characterized by the presence of partially …
Page 1 of 25