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Organometallic Compounds (15):
Recent article
Organometallic Compounds
The quarterly journal of nuclear medicine and molecular imaging : official publication of the Italian Association of Nuclear Medicine (AIMN) [and] the International Association of Radiopharmacology (IAR), [and] Section of the Society of... (55)4 2011
Abstract
Bone metastases are responsible for most of the morbidity and mortality associated with solid malignant tumors, occurring in about 65-70% of the patients with advanced breast or prostate cancer. The pathophysiology of skeletal metastasis is a complex process that involves several bio...
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PMID: 21738116
PDF is available here.
PDF is available here.
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Abstract
The activation of N-alkyl prolinols by XtalFluor E allowed the formation of an aziridinium intermediate that can react with tetrabutylammonium azide (nBu(4)NN(3)) to produce 3-azidopiperidines and/or 2-(azidomethyl)pyrrolidines, in a ratio up to 100/0. These 3-azidopiperidines can be...
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PMID: 21793544
PDF is available here.
PDF is available here.
Abstract
I clinical trials, to treat patients whose HCC is gallium-avid in a gallium scan. Because gallium absorbed from orally administered GaM is bound predominately to serum transferrin, which travels to all tissues in the body, GaM has the potential to treat even distant metastases. A patient with advanc...
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PMID: 21554205
PDF is available here.
PDF is available here.
Abstract
Abstract
Abstract
Samarium-153 ethylenediamine tetramethylene phosphoric acid (153Sm-EDTMP) is a radiopharmaceutical that has been used to treat osteosarcoma. The authors conducted a phase 2 study to test safety and response of high-risk osteosarcoma to tandem doses of 153Sm-EDTMP and to determine cor...
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PMID: 20715156
PDF is available here.
PDF is available here.
Abstract
Disulfide bond engineering is an important approach to improve the metabolic half-life of cysteine-containing peptides. Eleven analogues of oxytocin were synthesized including disulfide bond replacements by thioether, selenylsulfide, diselenide, and ditelluride bridges, and their stabilities in huma...
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PMID: 21117646
PDF is available here.
PDF is available here.
Anesthesiology (113)6 2010
Abstract
We hypothesized that inhalation anesthesia influences the intrapulmonary distribution of ventilation (V) and perfusion (Q), leading to less advantageous V/Q matching.
Ten healthy volunteers were studied in supine position on two separate occasions, once awake and once during mild anesthesia (sevoflu...
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PMID: 21068662
PDF is available here.
PDF is available here.
Abstract
To investigate a blood pool contrast agent and water-selective excitation imaging at 3 T for high spatial and high contrast imaging of brain vessels including the veins.
48 clinical patients (47 ± 18 years old) were included. Based on clinical findings, twenty-four patients received a single dose o...
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PMID: 20803412
PDF is available here.
PDF is available here.
Abstract
Abstract
Angiogenin is one of the more potent angiogenic factors known, whose activity may be affected by the presence of copper ions. Copper(II) complexes with the peptides encompassing the putative endothelial cell binding domain of angiogenin, Ac-KNGNPHREN-NH(2) and Ac-PHREN-NH(2), have been characterized...
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PMID: 20941439
PDF is available here.
PDF is available here.
Abstract
We have analyzed the role of the platinum complexes in the observed reactions and studied the progress of the detected transformations upon variation of the reaction conditions....
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PMID: 20922260
PDF is available here.
PDF is available here.
Abstract
(Spectro-)electrochemical results demonstrate ligand-centred hydride ion-carrier capacity for a Rh(I) complex of a novel 'non-innocent' N-heterocyclic carbene ligand created by nicotinamide functionalisation.
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PMID: 20922240
PDF is available here.
PDF is available here.
Abstract
The X-ray structures of three new crystals of nitroxylcobalamin (NOCbl) have been determined. Unlike our earlier reported structure in which NOCbl was partially oxidized (L. Hannibal, C. A. Smith, D. W. Jacobsen and N. E. Brasch, Angew. Chem., Int. Ed. 2007, 46, 5140), the O atom of the nitroxyl lig...
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PMID: 20890534
PDF is available here.
PDF is available here.
Abstract
Two Eu(III) complexes, [Eu(acac)(3)(dpq)] (1) and [Eu(acac)(3)(dppz)] CH(3)OH (2) {viz. acetylacetonate (acac), dipyrido[3,2-d:20,30-f]quinoxaline (dpq), dipyrido[3,2-a:20,30-c] phenazine (dppz)}, have been synthesized and their DNA binding, photo-induced DNA cleavage activity and cell cytotoxicity...
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PMID: 20922220
PDF is available here.
PDF is available here.
Abstract
This communication explores the effect of varying substituent bulk at the N9 position of the adenine moiety and its effect in dictating the structural aspects of silver-adenine frameworks. While adenine alone or 9-benzyl substituted ligand afforded mono and dinuclear dimeric entities, n-propyl subst...
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PMID: 20882216
PDF is available here.
PDF is available here.
Abstract
Three different tetraazamacrocyclic ligands containing four amide substituents that feature groups (namely allyl, styryl and propargyl groups) suitable for polymerisation have been synthesised. Gadolinium(III) complexes of these three ligands have been prepared as potential monomers for the synthesi...
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PMID: 20877892
PDF is available here.
PDF is available here.
Abstract
The first examples of platinum(II) complexes of 3-(aminomethyl)naphthoquinone Mannich bases have been synthesised and their crystal structures are described. Neutral and charged complexes have been obtained, fully characterised and their cytotoxic activities have also been investigated. 3-[(R(1)-ami...
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PMID: 20871881
PDF is available here.
PDF is available here.
Abstract
Heteroleptic copper(I) halide complexes containing the bis[2-(diphenylphosphano)phenyl]ether (DPEphos) ligand and the heterocyclic thioamides pyridine-2(1H)-thione (py2SH), pyrimidine-2(1H)-thione (pymtH) or 4,6-dimethylpyrimidine-2(1H)-thione (dmpymtH) have been synthesized and characterized by (1)...
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PMID: 20922239
PDF is available here.
PDF is available here.
Abstract
The new macrocyclic ligand 1,9(4,7)-diphenanthroline-3,7,11,15-tetraazacyclohexadecaphane (L) was synthesized by a 2 : 2 reaction of 1,10-phenanthroline-4,7-dialdehyde with 1,3-diaminopropane, followed by reduction with NaBH(4). L contains two phenanthroline groups linked together by two 1,3-dia...
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PMID: 20922246
PDF is available here.
PDF is available here.
Abstract
These results should provide a means to control the magnetic coupling of the polynuclear Mn systems, which is instructive for the design of new molecular magnetic materials....
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PMID: 20922243
PDF is available here.
PDF is available here.
Abstract
The Pd(3)(dppm*)(3)(CO)(n+) enantiomers (n = 2 (2), 1 (3)) were prepared either from (R,R)- or (S,S)-P-chirogenic bis(phenyl-m-xylylphosphino)methane (dppm*; 1) and Pd(OAc)(2) in the presence of CF(3)CO(2)H, CO and water (n = 2), and then by reductive electrolysis (n = 1). The stable enantiomeric [P...
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PMID: 20683535
PDF is available here.
PDF is available here.
Abstract
The stable uranyl complexes, [UO(2)(L)C(9)H(19)OH], were obtained from 3,5-dichlorosalicyl-(L(I)) and salicyl-aldehyde-S-propyl-thiosemicarbazones (L(II)) with substituted-salicylaldehyde in nonyl alcohol. The structures of the complexes have been characterized by elemental analysis, IR, (1)H NMR, c...
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PMID: 20922238
PDF is available here.
PDF is available here.
Abstract
We found that the gold-chlorine bond is significantly stronger in the case of the complex containing five-membered metallacyclic rings....
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PMID: 20886134
PDF is available here.
PDF is available here.
Abstract
New cationic diruthenium complexes of the type [(arene)(2)Ru(2)(SPh)(3)](+), arene being C(6)H(6), p-(i)PrC(6)H(4)Me, C(6)Me(6), C(6)H(5)R, where R = (CH(2))(n)OC(O)C(6)H(4)-p-O(CH(2))(6)CH(3) or (CH(2))(n)OC(O)CH=CHC(6)H(4)-p-OCH(3) and n = 2 or 4, are obtained from the reaction of the correspondin...
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PMID: 20890536
PDF is available here.
PDF is available here.
Abstract
Four bis-phenolate complexes [Zn(II)L], [Ni(II)L], [Cu(II)L] and [Co(II)L] (where [H(2)L = 2,2'-[2,2']bipyridinyl-6-yl-bis-4,6-di-tert-butylphenol] have been synthesized. The copper(II) and nickel(II) complexes have been characterized by X-ray diffraction, showing a metal ion within a square planar...
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PMID: 20820605
PDF is available here.
PDF is available here.
Abstract
(103)Rhodium(III) complexes derived from seven acyclic tetradentate N(2)S(2) ligands (one diaminedithiol and six diaminedithioether ligands) have been synthesized and characterized. Structural variations in the ligand include the length of carbon backbone between the coordinating atoms (222; 232; 32...
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PMID: 20890539
PDF is available here.
PDF is available here.
Abstract
The synthesis and full characterization of new half-sandwich ruthenium(II) complexes containing κ(3)(N,N,N)-hydridotris(pyrazolyl)borate (κ(3)(N,N,N)-Tp) and the water-soluble phosphanes 1,3,5-triaza-7-phosphatricyclo[3.3.1.1(3,7)]decane (PTA) and 1-methyl-3,5-diaza-1-azonia-7-phosphatricyclo[3.3....
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PMID: 20882255
PDF is available here.
PDF is available here.
Abstract
The phthalodinitrile derivative 3 was prepared by the reaction of 1,4-dithioerythritol 1 and 4-nitrophthalonitrile 2 in dry DMF as the solvent in the presence of K(2)CO(3) as the base by the method of nucleophilic substitution of an activated nitro group in an aromatic ring. The template reaction of...
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PMID: 20848044
PDF is available here.
PDF is available here.
Abstract
Ru(ii) complexes that bring together the properties of the dppz (dipyrido[3,2-a:2',3'-c]phenazine) intercalating residue and the properties of metal-coordinating macrocycles (L = 4,4'-(2,5,8,11,14-pentaaza[15])-2,2'-bipyridilophane) have been synthesised and their protonation and affinity for copper...
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PMID: 20838679
PDF is available here.
PDF is available here.
Abstract
A novel luminescent chemosensor for detecting Hg(2+) with high selectivity, based on a pendant benzo crown ether terbium complex, has been designed and prepared.
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PMID: 20859599
PDF is available here.
PDF is available here.
Abstract
Two new heterobimetallic phenylmercury(ii) dithiocarbamate complexes incorporating the ferrocenyl moiety (C(5)H(5))Fe(C(5)H(4)) (Fc), namely PhHgS(2)CN(CH(2)Fc)CH(2)C(5)H(4)N, (1) and PhHgS(2)CN(CH(2)Fc)CH(2)C(4)H(3)O, (2) have been prepared and characterized by elemental analysis, UV-Vis, IR, (1)H...
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PMID: 20830401
PDF is available here.
PDF is available here.
Abstract
The aminoglycosidic antibiotic hygromycin B presents a peculiar chemical structure, characterized by two sugar rings joined via a spiro connection. The Cu(ii) complex of hygromycin B in water solution was characterized by (1)H-NMR, UV-Vis, EPR and CD spectroscopy, combined with potentiometric measur...
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PMID: 20838678
PDF is available here.
PDF is available here.
Abstract
Four metal(ii)-N(1),N(3)-di(pyridin-4-yl)isophthalamide (L) complexes formulated as [Cu(L)(2)Cl(2)]·5.5H(2)O (1), [Ni(L)(2)Cl(2)]·5.5H(2)O (2), [Co(L)(m-BDC)]·DMF (3) (m-BDC = 1, 3-benzenedicarboxylic dianion) and [Cd(2)(L)(2)(m-BDC)(2)]·DMF·0.2H(2)O (4) have been solvothermally synthesized and...
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PMID: 20877817
PDF is available here.
PDF is available here.
Abstract
Polymer additive migration into a food product is dependent upon numerous factors including the original concentration of the additive in the polymer, its solubility in the food, its diffusion coefficient in the polymer, its partition coefficient between the polymer and food, temperature, and time....
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PMID: 20672204
PDF is available here.
PDF is available here.
Acta Radiologica (51)9 2010
Abstract
Diving is associated with a risk of cerebral decompression illness, and the prevalence of neurological symptoms is higher in divers compared with control groups. Microvascular dysfunction due to gas microembolism and exposure to hyperoxia are possible mechanisms, which may result in cerebral diffusi...
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PMID: 20849321
PDF is available here.
PDF is available here.
Analyst (Cambridge UK) (135)11 2010
Abstract
A novel strategy for the determination of oxalate anions was successfully established using a copper ion and pyrocatechol violet (PV) ensemble. The sensor ensemble can discriminate oxalate over other common anions including F(-), Cl(-), I(-), Br(-), HPO(4)(2-), PO(4)(3-), AcO(-), CO(3)(2-), SO(4)(2-...
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PMID: 20877823
PDF is available here.
PDF is available here.
Analyst (Cambridge UK) (135)11 2010
Abstract
We have developed a molecular logic gate for the recognition of PPi with a fluorescent hypocrellin A-zinc(II) complex (HA-Zn(2+)), and the outputs of which correspond to the fluorescence emission ratio at 604 nm and wavelength shift relative to 629 nm. The emission at 604 nm is the intrinsic fluores...
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PMID: 20877861
PDF is available here.
PDF is available here.
Analyst (Cambridge UK) (135)11 2010
Abstract
Fluorogenic based nitrobenzofuran-functionalized Ni@SiO(2) core/shell magnetic nanoparticles have been prepared by sol-gel grafting reaction. Their ability to detect and remove metal ions was evaluated by fluorophotometry. The nanoparticles exhibited a high affinity and selectivity for Cu(2+) over c...
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PMID: 20842293
PDF is available here.
PDF is available here.
Analyst (Cambridge UK) (135)11 2010
Abstract
Ever since the advent of surface plasmon resonance (SPR) and SPR imaging (SPRi) in the early 1990s, their use in biomolecular interaction analysis (BIA) has expanded phenomenally. An important research area in SPR sensor development is the design of novel and effective interfaces that allow for the...
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PMID: 20830330
PDF is available here.
PDF is available here.
Chemical Communications (46)40 2010
Abstract
We have designed a molecular system consisting of a heteroleptic [Ru(bpy)(2)L](2+) chromophore covalently linked to a Mn(III)-Salen unit. We demonstrate the light induced oxidation of the Mn(III) center in this putative photo-catalyst assembly to a Mn(IV) high spin intermediate. Both oxidation state...
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PMID: 20835470
PDF is available here.
PDF is available here.
Abstract
The purpose of this study was to evaluate the blood pool contrast agent gadofosveset for MR angiography (MRA) of the renal vasculature in living kidney donors (LKD).
Of the 28 consecutive potential LKDs (13 men, 15 women; mean age 55.14 years ± 11.97) initially included in this prospective study, 2...
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PMID: 20922646
PDF is available here.
PDF is available here.
Ugeskrift for laeger (172)43 2010
Abstract
Peptide receptor radionuclide therapy using somatostatin analogues labelled with beta-emitting isotopes can be given to patients with metastasized or inoperable neuroendocrine tumours provided these have increased uptake on octreotide scintigraphy. This is a brief review of the treatment principle,...
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PMID: 21040673
PDF is available here.
PDF is available here.
Abstract
Electron transfer reaction of a self-assembled donor-acceptor dyad formed by axial coordination of zinc naphthalocyanine, ZnNc, and subphthalocyanine appended with pyridine coordinating ligand, SubPc(py), was investigated in the present study. The SubPc(Py) : ZnNc self-assembled dyad absorbs the...
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PMID: 20820580
PDF is available here.
PDF is available here.
Abstract
Regioselective syntheses of 1,4,5-trisubstituted 1,2,3-triazoles were accomplished by three different strategies, relying on (i) the interception of stoichiometrically formed 5-cuprated-1,2,3-triazoles, (ii) the use of stoichiometrically functionalized alkynes or (iii) catalytic C-H bond functionali...
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PMID: 20733972
PDF is available here.
PDF is available here.
Abstract
A short route, involving a tetramolecular condensation reaction and a Pd/C catalyst-H(2)-mediated reductive N-heteroannulation as the key-steps, has been found for the synthesis of some new penta- and heptacyclic indolo- (12), quinolino- (13) and indoloquinolinocarbazole (11) derivatives. HF-DFT (B3...
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PMID: 20734015
PDF is available here.
PDF is available here.
Abstract
We tested the hypothesis that contrast-filled vaginal balloon packing reduces radiation dose to organs at risk, such as the bladder and rectum, in comparison to water- or air-filled balloons....
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PMID: 20950949
PDF is available here.
PDF is available here.
Abstract
Food and Chemical Toxicology (48)10 2010
Abstract
We examined the effect of Etlingera elatior extract on lead-induced changes in the oxidative biomarkers and histology of bone marrow of rats. Sprague-Dawley rats were exposed to 500 ppm lead acetate in their drinking water for 14 days. E. elatior extract was treated orally (100mg/kg body weight) in...
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PMID: 20600524
PDF is available here.
PDF is available here.
Anticancer Research (30)10 2010
Abstract
We show that the concentration-dependent use of salen-manganese complexes within the appropriate time window and with parallel control of signaling parameters allows complex interactions during intercellular induction of apoptosis to be studied. At very low concentrations, salen-manganese complexes...
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PMID: 21036710
PDF is available here.
PDF is available here.
Abstract
A label-free detection of K(+) was developed using G-quadruplex DNA (c-Myc) modulated fluorescence enhancement of tetrakis-(diisopropylguanidino) zinc phthalocyanine (Zn-DIGP). Upon the addition of increasing concentrations of potassium, a detection limit of 0.8 μM for K(+) was easily achieved. Com...
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PMID: 20804164
PDF is available here.
PDF is available here.
Journal of Physical Chemistry A: Molecules, Spectroscopy, Kinetics, Environment and General Theory (114)37 2010
Abstract
We proposed a new mechanism for formation of the triplet O(2) molecule, which contains the two steps of the concerted hydrogen transfer and dehydration. The light-induced O(2) evolution from water promoted by the Ru(II) complex was found to be a nonadiabatic process. The O-O bond is formed along the...
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PMID: 20804156
PDF is available here.
PDF is available here.
Inorganic Chemistry (49)18 2010
Abstract
We have characterized two high-valent complexes [LFe(IV)(μ-O)(2)Fe(III)L], 1, and [LFe(IV)(O)(μ-O)(OH) Fe(IV)L], 4. Addition of hydroxide or fluoride to 1 produces two new complexes, 1-OH and 1-F. Electron paramagnetic resonance (EPR) and Mössbauer studies show that both complexes have an S = 1/...
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PMID: 20795646
PDF is available here.
PDF is available here.
Abstract
A facile direct synthesis of cinnamonitriles from acrylonitriles and benzenes is successfully achieved by using Pd(OAc)(2)/HPMoV/O(2) catalyst system via the direct C-H bond activation of benzenes using molecular oxygen as a terminal oxidant.
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PMID: 20652185
PDF is available here.
PDF is available here.
Abstract
In this study, the hydrolytic reaction mechanism of HPNP by two effective mononuclear Zn(II) catalysts was explored by using density functional calculations. With the assumption that the active catalyst is in Zn-aqua form, the water-assisted proton transfer mode was found to be energetically the mos...
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PMID: 20603674
PDF is available here.
PDF is available here.
Abstract
We found that L1 and Re1 internalize and localize in the nucleus of B16F1 murine melanoma cells. The congener Tc1 complex also targets the cell nucleus exhibiting a time-dependent cellular uptake and a fast and high nuclear internalization (67.2% of activity after 30 min). Plasmid DNA studies have s...
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PMID: 20648265
PDF is available here.
PDF is available here.
Abstract
The room-temperature hydrogen uptake of unbridged and bridged composites formed by a physical mixture of either (IRMOF-1)-(AC/Pt catalyst) or (IRMOF-1)-(AC/Pt catalyst) and sucrose, respectively, has been carefully measured and compared with previous results reported by Li and Yang. Contrary to thei...
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PMID: 20601991
PDF is available here.
PDF is available here.
Abstract
A series of cyclobutenes bearing group 14 elements at the 3-position were synthesized, and their thermal ring-opening reactions were studied. Carbon-substituted cyclobutene underwent the ring-opening reaction through an outward pathway to afford the E-diene exclusively. On the other hand, the ring-o...
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PMID: 20664887
PDF is available here.
PDF is available here.
Abstract
Vinyl-substituted (Z)-stilbenes are stereoselectively synthesised on treatment of 4-arylbuta-2,3-dien-1-ols with arylboronic acids in the presence of a rhodium(i) catalyst. The reaction proceeds through the regioselective addition of organorhodium(i) species across the aryl-substituted carbon-carbon...
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PMID: 20661491
PDF is available here.
PDF is available here.
Abstract
Through the stoichiometric 2 : 1 coordination of Zn(2+) with 4-amino-N-(2-methylquinolin-8-yl)benzenesulfonamide-modified per-methyl-beta-cyclodextrin (MQAS-PMCD) and the strong inclusion complexation of permethyl-beta-cyclodextrin cavity with meso-tetrakis-(4-sulfonatophenyl)-porphyrin (TSPP), an e...
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PMID: 20657925
PDF is available here.
PDF is available here.