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Showing 1 to 16 of 16 for “"tridentate ligand"”.
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Syntheses and Reactions of Novel Bicyclic Aryldialkoxybrominane and Aryldialkoxyiodinane Oxide
… precursor for the incorporation of a stabilizing tridentate ligand in compounds of hypervalent nonmetallic elements.
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"The Synthesis and Biological Evaluation of Integrated and Conjugated Re/tc-99m-Containing ""3+1"" and Cyclopentadienyltricarbonyl (Cptm) Estrogen Complexes as Receptor-Based Imaging Agents for Breast Cancer"
… an bis(2-mercaptoethyl)methyl amine as the tridentate ligand (66, 45%) and a CpTR complex employing an amide linkage (67b, 24%). Studies showed that the Tc analogs were too lipophilic for in vivo use, so we pursued the synthesis of CpTR amides containing ether functionalities in the 7alpha …
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The Synthesis and Characterization Of A Functionalized Diethylenetriamine Rhenium Complex Followed By Analytical Analysis of Novel Rhenium-Luteinizing Hormone-Releasing Hormone Conjugates
… [99mTc(CO)3L]+ core, when facially chelated by tridentate ligands, shows superior pharmacokinetics and stability. Given the nuclear characteristics of 99mTc, studying these complexes is complicated. Here we use non-radioactive rhenium (Re) in [Re(CO)3L]+ analogues to serve as safer models for …
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Synthesis, Characterization, and Reactivity of Alkylphosphomolybdates: Oxidation, Dehydration, and Isomerization
… reveals that in 1, the P$\sb3$O$\sb9\sp{3-}$ ligand acts as a tridentate ligand coordinated to MoO$\sb2$OCH$\sb2$CH$\sb3\sp+$ unit. Two short intramolecular CH$\cdots$OMo contacts between the methylene hydrogens and the oxygens of P-O and Mo=O are found in anion 1. Based on $\sp{31}$P, $\sp …
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Applications of UV-visible spectral imaging in forensic science
… compliment spectral imaging can be developed. A tridentate ligand for iron(II), BBIDMAPP, which forms a complex with a narrow intense charge-transfer band, was synthesised and was used to visualise muddy shoemarks. UV-visible spectral imaging systems based on a liquid crystal filter or a filter …
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Fluoroalkoxy-functionalized carbenes for main group and transition metal complexes
… of imidazol-2-ylidenes for their applications as ligands for main group elements and transition metals and as sterically hindered Lewis bases for hydrogen activation. Chapter 1 reviews the background of carbenes as ligands for main group compounds and transition metal complexes. The history and …
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Investigations of Iron–Nitrogen Bonding at Synthetic Iron–Sulfur Clusters
The coordination chemistry of nitrogenous ligands at high-spin iron is investigated through the synthesis and characterization of a terminal imido complex of a cuboidal tetra(μ3-sulfido)tetrairon (Fe4S4) cluster. Structural, spectroscopic, and computational studies establish a dynamic interplay …
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The gas chromatographic separation properties of azulene and the synthesis and characterization of bulky bis-pyrazolylpyridine metal-ligand complexes.
… are the synthesis and characterization of bulky tridentate ligand-metal complexes. Azulene is an aromatic molecule with interesting properties, most notably a permanent dipole moment of 1.08 D. This degree of polarity in the absence of heteroatoms is quite rare and offers potential for use in …
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Dinitrogen complexes of titanium and vanadium stabilized by phosphine ligands
… feature of 5 is the end-on bound dinitrogen ligand with an N-N bond distance of 1.275 (7) Å, typical of other binuclear end-on bound dinitrogen complexes. The ¹H and ³¹P{¹H} NMR spectra indicate that this dinitrogen complex is fluxional at room temperature by a process that is proposed to …
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Development of New Linking Chemistry with the fac-{Re(CO)3}+ Core for Eventual Applications in Radiopharmaceuticals in Imaging and Therapy
… development. This study explores two different ligand systems for fac-[Re(CO)3L]+ complexes, that could be used in bioconjugation. The first approach uses a tridentate ligand having a sulfonamide linkage and modeled on previously evaluated fac-[Re(CO)3(N(SO2R)dpa)]PF6 complexes. The present goal …
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Syntheses and studies of group 6 terminal pnictides, early-metal trimetaphosphate complexes, and a new bis-enamide ligand
… the coordination chemistry of the trianionic, tridentate ligand trimetaphosphate, studies are described whereupon trimetaphosphate is metallated with molybdenum. (MeCN)3Mo(CO) 3 reacts with [PPN] 3[P30 9] -H20 ([PPN] = [Ph3P=N-PPh3]') to form the trimetaphosphate salt [PPN]3[(P30 9)Mo(CO) 3] …
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Synthesis of multicomponent heavy alkali metal amide systems and extensions to zirconium chemistry
… the presence of a multidentate Lewis base donor ligand, taking on different structural guises depending on the denticity of the ligand of choice. This topic is currently a hot topic in organometallic chemistry, being lithium amide congeners have already been characterised. This study allows a …
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The Binding of the Micronutrient Transition Metals to the Alkylation Products of Chemical Warfare Agent, Sulfur Mustard, and Thiols, Potentially Giving New Understanding to Physiological Effects of Exposure and Increased Toxicity
… later. Crystal structure data shows that the tridentate thioether portion of TTDPA is sufficient to form a complex with a Cu2+ ion and a chloride, meaning that the alkylation adducts formed by cysteine or larger cysteine containing peptides or proteins contain all the functionality needed to …
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ORGANIC AND HYBRID INORGANIC-ORGANIC MATERIALS WITH INTRIGUING EMISSIVE PROPERTIES IN THE SOLID STATE
… the properties of TT as a mono-, bi-, and tridentate ligand have been exploited allowing the preparation of one- and three-dimensional (1D, 3D) coordination polymers of Cu(I) and Ag(I) characterized by emission in solid state covering a wide range of UV-Vis spectrum.[11] Finally, TT …
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New Polyazine-Bridged Ru(II),Rh(III) and Ru(II),Rh(I) Supramolecular Photocatalysts for Water Reduction to Hydrogen Applicable for Solar Energy Conversion and Mechanistic Investigation of the Photocatalytic Cycle
… analysis of complexes prepared using deuterated ligands was used to characterize these three RuII,RhIII supramolecular complexes. Electrochemical studies suggested that replacing bpy with a tridentate ligand on RhIII shifts the RhIII/II and RhII/I reduction couples positively, which can modulate …
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Auxiliary proton-influenced metal-mediated reactions: dioxygen activation, anion coordination, and catalysis
… These building blocks allow the preparation of tridentate N3 ligands decorated with OH and OMe substituents flanking the fourth coordination site of a tetrahedral complex. Crystallographic characterization of the ligand complemented with two methyl and one OH group revealed that it exists as the …