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Chemistry, Inorganic (1):
Recent article
Chemistry, Inorganic
Abstract
Boronic acids have been widely used in a wide range of organic reactions, in the preparation of sensors for carbohydrates, and as potential pharmaceutical agents. With the growing importance of click reactions, inevitably they are also applied to the synthesis of compounds containing the boronic aci...
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PMID: 20733546
PDF is available here.
PDF is available here.
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Abstract
This paper describes the synthesis of a series of Pd(IV) complexes of general structure (N~C)(2)Pd(IV)(O(2)CR)(2) (N~C = a rigid cyclometalated ligand; O(2)CR = carboxylate) by reaction of (N~C)(2)Pd(II) with PhI(O(2)CR)(2). The majority of these complexes undergo clean C-O bond-forming reductive el...
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PMID: 19459631
PDF is available here.
PDF is available here.
Abstract
Currently there is no standard method for measurement of atmospheric mercury dry deposition. While all operationally defined forms of atmospheric mercury (elemental, oxidized, and particulate) can be dry deposited, oxidized forms are of concern due to high deposition velocities, water solubility, an...
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PMID: 19746719
PDF is available here.
PDF is available here.
Abstract
We present a new automated instrument for semicontinuous gradient measurements of water-soluble reactive trace gas species (NH3, HNO3, HONO, HCl, and SO2) and their related aerosol compounds (NH4+, NO3-, Cl-, SO4(2-)). Gas and aerosol samples are collected simultaneously at two heights using rotatin...
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PMID: 19350912
PDF is available here.
PDF is available here.
Abstract
Until about a decade ago, black carbon (BC) was thought to be the only light absorbing substance in the atmospheric aerosol except for soil or desert dust In more recent years, light absorbing polymeric carbonaceous material was found in atmospheric aerosols. Absorption increases appreciably toward...
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PMID: 19320171
PDF is available here.
PDF is available here.
Abstract
We measured the extent and rate of Fe isotope exchange between aqueous Fe(II) and goethite using a 57Fe isotope tracer approach. We observed near-complete exchange of Fe atoms between the aqueous phase and goethite nanorods over a 30-day time period. Despite direct isotopic evidence for extensive mi...
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PMID: 19320165
PDF is available here.
PDF is available here.
Abstract
In this study, estimation capacities of response surface methodology (RSM) and artificial neural network (ANN) in a heterogeneous photo-Fenton process were investigated. The zeolite Fe-ZSM5 was used as heterogeneous catalyst of the process for degradation of C.I. Acid Red 14 azo dye. The efficiency...
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PMID: 19031889
PDF is available here.
PDF is available here.
Abstract
A hydrogen reduction and activated sintering process was proposed to prepare chromic oxide green pigment. Through ICP, XRD, SEM, FT-IR, UV, and CIE-L*a*b* colorimetric analysis, key factors and mechanism that influenced preparation of chromic oxide green pigment were studied. The results revealed th...
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PMID: 18939551
PDF is available here.
PDF is available here.
Physical Review Letters (101)9 2008
Abstract
We study by synchrotron small-angle x-ray scattering highly aligned lamellar phases of a zwitterionic surfactant, doped with monodisperse and spherical hydrophobic inorganic particles as a function of particle concentration. Analysis of the structure factor of the two-dimensional fluid formed by the...
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PMID: 18851663
PDF is available here.
PDF is available here.
Abstract
The interaction of 20 wt% 12-tungstophosphoric acid with Ce(x)Zr(1-x)O(2) solid solutions has been studied by PXRD, FTIR, FT-Raman, H(2)-TPR, NH(3)-TPD, diffuse reflectance UV-vis-NIR, and (31)P MAS NMR techniques. The study indicates that the Keggin anions are attached to Lewis metal ion centres an...
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PMID: 18502441
PDF is available here.
PDF is available here.
Abstract
We provide a general view of the physical interpretation of the variations of carrier transport coefficients (diffusion coefficient and mobility) with respect to the carrier concentration, or Fermi level, examining in detail models for carrier transport in nanocrystalline semiconductors and organic...
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PMID: 18500394
PDF is available here.
PDF is available here.
Abstract
We show that the surface free energy of SAM-modified silver, which depends on end groups and deposition method of SAMs, has a dramatic effect on the nucleation and growth of crystalline ZnO, a technologically important material, from supersaturated solutions. For SAMs with inert methyl end groups, Z...
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PMID: 18399664
PDF is available here.
PDF is available here.
Abstract
Revue d histoire de la pharmacie (55)356 2008
Abstract
The life of this poor pharmacist and very efficient man of science was made of many encounters: meeting with pharmacy, meeting with chemistry, meeting with prestigious scientists, meeting with chlorine, meeting with oxygen, meeting with organic chemistry, etc. This chemist devoid of money, working w...
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PMID: 18549186
PDF is available here.
PDF is available here.
Revue d histoire de la pharmacie (55)356 2008
Abstract
Abstract
The capabilities and potential of polyimide and polyimide tubing are gaining popularity in the medical design market place as a result of the increasing need for minimally invasive surgical devices. This article looks at the myths surrounding the tubing to better understand its advantages for medica...
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PMID: 18557403
PDF is available here.
PDF is available here.
Abstract
Abstract
We have found a new pathway of Cr(VI) photoreduction in the presence of Fe-(III) that is influenced by two inorganic electrolytes (i.e., NO3- and Cl-) and the pH. In NO3- and Cl- systems without Fe(III), Cr(VI) photoreduction could occur and was independent of the Cr(VI) concentration. The zero-orde...
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PMID: 18075107
PDF is available here.
PDF is available here.
Journal of Inorganic Biochemistry (101)11-12 2007
Abstract
Journal of Inorganic Biochemistry (101)11-12 2007
Abstract
A brief memorial, from the ferrocentric view of science, about E.I. Stiefel's discovery of heme, maxi-ferritins in bacteria, recognition of the relationship to animal maxi-ferritins, and other reminiscences of ferritin defined as a storage battery.
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PMID: 17664012
PDF is available here.
PDF is available here.
Inorganic Chemistry (46)21 2007
Abstract
A new cyanide-bearing molecular precursor, mer-[Fe(pzcq)(CN)(3)]- (1), and a zigzag chain, [Fe(pzcq)(CN)(3)][Mn(salen)].4H(2)O (2), were prepared and characterized in terms of structure and magnetism. Magnetic data reveal that intrachain antiferromagnetic couplings via cyanide ligands in 2 are clear...
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PMID: 17850146
PDF is available here.
PDF is available here.
Inorganic Chemistry (46)21 2007
Abstract
Three substituted tris(pyrrolyl-alpha-methyl)amines (H(3)[Aryl(3)TPA]) (Aryl = 2,4,6-C(6)H(2)Me(3), 2,4,6-C(6)H(2)(i-Pr)(3) (Trip), or 3,5-C(6)H(3)(CF(3))(2)) have been prepared. An X-ray study of [Trip(3)TPA]MoCl shows it to be a distorted trigonal bipyramidal species in which the 2,4,6-triisopropy...
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PMID: 17854184
PDF is available here.
PDF is available here.
Inorganic Chemistry (46)21 2007
Abstract
Oxo-sulfidobis(dithiolene)tungsten(VI) complexes were prepared in situ by the reaction of oxobis(dithiolene)tungsten(V) precursors with hydrosulfide (SH-). The complexes, characterized by UV-vis, electrospray ionization mass spectrometry, IR, and resonance Raman spectroscopies, model the proposed co...
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PMID: 17854180
PDF is available here.
PDF is available here.
Abstract
The enthalpy relaxation of polymer-silica nanocomposites prepared by simultaneous polymerization of poly(2-hydroxyethyl methacrylate) (PHEMA) and tetraethyloxysilane, TEOS, a silica precursor, is investigated. Both the glass transition temperature, Tg, and the temperature interval of the glass trans...
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PMID: 17876514
PDF is available here.
PDF is available here.
Inorganic Chemistry (46)16 2007
Abstract
A mixture of pyridoxalrhodanine, triethylphosphinegold(I) chloride, and sodium methoxide in methanol unexpectedly afforded the azacoumarin complex [Au(TS)(PEt3)] [HTS = 5-(hydroxymethyl)-8-methyl-3-thiol-7-azacoumarin], which was characterized by X-ray diffractometry. Its crystals consist of indepen...
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PMID: 17602616
PDF is available here.
PDF is available here.
Inorganic Chemistry (46)16 2007
Abstract
Activation parameters for epoxidation and allylic hydroxylation reactions of cyclohexene with FeIVO(TMP)*+Cl (1) were determined. Within the experimental temperature range, the epoxidation reaction was enthalpy-controlled (i.e., DeltaH > -TDeltaS), while the allylic hydroxylation reaction was entrop...
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PMID: 17602617
PDF is available here.
PDF is available here.
Inorganic Chemistry (46)16 2007
Abstract
The present study describes a simultaneous and highly reproducible large-scale synthesis of six (and more) colors of size-homogeneous and highly luminescent CdSe quantum dots in a single reaction, controlled by a slow-increasing temperature gradient. The described protocol allows a precise control a...
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PMID: 17602608
PDF is available here.
PDF is available here.
Inorganic Chemistry (46)16 2007
Abstract
Heme-Cu/O2 adducts are of interest in the elucidation of the fundamental metal-O2 chemistry occurring in heme-Cu enzymes which effect reductive O-O cleavage of dioxygen to water. In this report, the chemistry of four heme-peroxo-copper [FeIII-(O22-)-CuII]+ complexes (1-4), varying in their ligand ar...
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PMID: 17616124
PDF is available here.
PDF is available here.
Inorganic Chemistry (46)16 2007
Abstract
We report four new metal-sulfite polymeric structures, (ZnSO3)Py (1, py = pyridine), (ZnSO3)2(2,2'-bipy)H2O (2, 2,2'-bipy = 2,2'-bipyridine), (ZnSO3)2(TMDPy) (3, TMDPy = 4,4'-trimethylenedipyridine), and (MnSO3)2en (4, en = ethylenediamine) that have been synthesized hydrothermally and structurally...
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PMID: 17622134
PDF is available here.
PDF is available here.
Inorganic Chemistry (46)15 2007
Abstract
The synthesis of bifunctional dinuclear platinum complexes, [{PtCl(dach)}(2)-mu-Y](n+)Cl(n) (1-3; Y = H(2)N(CH(2))(3)NH(2)(CH(2))(4)NH(2), H(2)N(CH(2))(6)NH(2)(CH(2))(6)NH(2), and H(2)N(CH(2))(6)NH(2)(CH(2))(2)NH(2)(CH(2))(6)NH(2), respectively; Figure 1) is reported. There was no labilization of th...
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PMID: 17592835
PDF is available here.
PDF is available here.
Inorganic Chemistry (46)15 2007
Abstract
By introducing the flexible 1,1'-(1,4-butanediyl)bis(imidazole) (bbi) ligand into the polyoxovanadate system, five novel polyoxoanion-templated architectures based on [As(8)V(14)O(42)](4-) and [V(16)O(38)Cl](6-) building blocks were obtained: [M(bbi)(2)](2)[As(8)V(14)O(42)(H(2)O)] [M = Co (1), Ni (2...
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PMID: 17592834
PDF is available here.
PDF is available here.
Inorganic Chemistry (46)15 2007
Abstract
A new type of supramolecular building block, Zn(II)-salpyr [salpyr = N,N'-3-pyridylenebis(salicylideneimine)], is described that contains both a pyridyl donor and a Lewis acidic Zn(II) acceptor site in the salen framework. As a consequence, this building block self-organizes into a stable tetrameric...
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PMID: 17580935
PDF is available here.
PDF is available here.
Inorganic Chemistry (46)15 2007
Abstract
Reaction of a semirigid ligand with two octahedral metal ions with restricted coordination symmetry afforded metalated container complexes showing trigonal or tetragonal outer shapes and inner cavities.
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PMID: 17256851
PDF is available here.
PDF is available here.
Inorganic Chemistry (46)15 2007
Abstract
We present a hybrid quantum mechanical and molecular mechanical (QM/MM) investigation of the Fe-only hydrogenase from Desulfovibrio desulfuricans, in order to unravel key issues regarding the activation of the enzyme from its completely oxidized inactive state (Hoxinact) and the influence of the pro...
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PMID: 17602468
PDF is available here.
PDF is available here.
Inorganic Chemistry (46)15 2007
Abstract
The sulfur of acetophenone thiosemicarbazone {(Ph)(Me)C=N-NH-C(=S)NH(2); Haptsc} and two iodine atoms form an unusual heterobridge in the dinuclear complex [(Ph(3)P)Cu(mu-I)(2)(mu-S-Haptsc)Cu(PPh(3))] (1), leading to a short Cu--Cu distance of 2.504(1) Angstrom. This uncommon heterobridging is attri...
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PMID: 17602471
PDF is available here.
PDF is available here.
Inorganic Chemistry (46)15 2007
Abstract
In this report, the photophysical properties of self-assembled [Cu(2)(5-OH-bdc)(2)L(2)](12) [where (5-OH-bdc)(2-) = 5-hydroxybenzene-1,3-dicarboxylate and L is a dimethyl sulfoxide, methanol, or water ligand] hydroxylated nanoballs (OH-nanoball) were examined in methanol using optical absorption and...
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PMID: 17585758
PDF is available here.
PDF is available here.
Inorganic Chemistry (46)15 2007
Abstract
Two chiral supramolecules with enantiomeric three-dimensional porous host frameworks, (Delta){[Fe(II)(phen)(3)][Fe(III)Na(C(2)O(4))(3)]}(n) (1) and (Lambda){[Fe(II)(phen)(3)][Fe(III)Na(C(2)O(4))(3)]}(n) (2) (phen = 1,10-phenanthroline), have been synthesized, and their crystal structures have been d...
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PMID: 17602551
PDF is available here.
PDF is available here.
Journal of Biological Inorganic Chemistry (12 Suppl 1)s1 2007
Abstract
Abstract
We designed a novel microtemplate consisting of a "dual-component" self-assembled monolayer (SAM) with alternating hydrophobic trifluorocarbon (CF3) and cationic amino (NH2) groups. First, (heptadecafluoro-1,1,2,2-tetrahydrodecyl)trimethoxysilane (FAS)-SAM was formed onto Si substrate covered with n...
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PMID: 17295520
PDF is available here.
PDF is available here.
Analytica Chimica Acta (585)2 2007
Abstract
A new porous sorbent for wastewater treatment of metal ions was synthesized by covalent grafting of molecularly imprinted organic-inorganic hybrid on silica gel. With sucrose and polyethylene glycol 4000 (PEG 4000) being synergic imprinting molecules, covalent surface coating on silica gel was achie...
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PMID: 17386667
PDF is available here.
PDF is available here.
Inorganic Chemistry (45)24 2006
Abstract
We present herein a simple template method for preparing noble metal nanonets with defined sizes. The template utilized is a TiO2 nanotube (NT) array prepared by anodic oxidation of a pure titanium sheet in an electrolyte solution containing sodium fluoride. Uniform NTs with defined sizes are obtain...
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PMID: 17112249
PDF is available here.
PDF is available here.
Inorganic Chemistry (45)24 2006
Abstract
We define as "midrange". They give approximately 12- (ZP9) and approximately 7-fold (ZP10) fluorescence turn-on immediately following Zn(II) addition at neutral pH and exhibit improved selectivity for Zn(II) compared to the di-(2-picolyl)amine-based Zinpyr (ZP) sensors. Confocal microscopy studies i...
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PMID: 17112271
PDF is available here.
PDF is available here.
Inorganic Chemistry (45)24 2006
Abstract
Low-temperature deprotonation of the phenylborane dications, PhB(RIm)3OTf2 (R = tBu, Mes), followed by in situ reaction with CoCl2(thf)1.5, results in the formation of the four-coordinate complexes, kappa3-PhB(RIm)3CoCl, in which the metal is supported by tripodal N-heterocyclic carbene-based ligand...
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PMID: 17112274
PDF is available here.
PDF is available here.
Inorganic Chemistry (45)24 2006
Abstract
Two new bulky aryl-bridged pyridyl-imine compartmental (pro)ligands, 2,6-{(2,6-i-Pr(2)C6H3)N=C(Me)C5H3N}2C6H3Y (Y = H L1, OH L2-H), have been prepared in moderate to good overall yields via a Stille-type cross-coupling approach. The molecular structure of L2-H reveals a transoid configuration within...
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PMID: 17112287
PDF is available here.
PDF is available here.
Inorganic Chemistry (45)24 2006
Abstract
Reaction of 2-(4'-R-phenylazo)-4-methylphenols (R = OCH3, CH3, H, Cl, and NO2) with [Ru(dmso)(4)Cl2]affords a family of five ruthenium(III) complexes, containing a 2-(arylazo)phenolate ligand forming a six-membered chelate ring and a tetradentate ligand formed from two 2-(arylazo)phenols via an unus...
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PMID: 17112260
PDF is available here.
PDF is available here.
Abstract
Abstract
Fluorine and chlorine co-substituted hydroxyapatites (HAP) were prepared through aqueous precipitation method. Characterization results from X-ray diffraction (XRD) revealed that co-substitution of these anions resulted in the formation of pure HAP phase except for the small observed difference in t...
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PMID: 16876252
PDF is available here.
PDF is available here.
Abstract
The vitamin B(6) derivatives 4-pyridoxic acid (anionic) and the Schiff base N,N'-ethylenebis(pyridoxylideneiminato) react with UO(2)(NO(3))(2) * 6H(2)O to give [UO(2)(beta-pyracinide)(2)(H(2)O)] (beta-pyracin=4-pyridoxic acid) and [UO(2)(Pyr(2)en)DMSO]Cl(2)(Pyr(2)en=N,N'-ethylenebis(pyridoxylideneim...
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PMID: 16876250
PDF is available here.
PDF is available here.
Abstract
We have realized that aqueous solutions of 1 are colloidal and we propose that colloidal particles are involved in specific binding to GC containing sequences, most probably in the major groove of DNA....
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PMID: 16876251
PDF is available here.
PDF is available here.
Abstract
Two new diMn(III) complexes [Mn(2)(III)L(1)(mu-AcO)(mu-MeO)(methanol)(2)]Br (1) and [Mn(2)(III)L(2)(mu-AcO)(mu-MeO)(methanol)(ClO(4))] (2) (L(1)H(3)=1,5-bis(2-hydroxybenzophenylideneamino)pentan-3-ol; L(2)H(3)=1,5-bis(2-hydroxynaphtylideneamino)pentan-3-ol) were synthesized and structurally characte...
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PMID: 16843530
PDF is available here.
PDF is available here.
Journal of Biotechnology (125)3 2006
Abstract
The tetrapeptide Bz-Arg-Gly-Asp-Ser-NH(2) (Bz-RGDS-NH(2)) was successfully synthesized by a combination of chemical and enzymatic methods in this study. Firstly, the precursor tripeptide Gly-Asp-Ser-NH(2) (GDS-NH(2)) was synthesized by a novel chemical method in four steps including chloroacetylatio...
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PMID: 16621088
PDF is available here.
PDF is available here.
Abstract
Inorganic chemistry and biology can benefit greatly from each other. Although synthetic and physical inorganic chemistry have been greatly successful in clarifying the role of metal ions in biological systems, the time may now be right to utilize biological systems to advance coordination chemistry....
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PMID: 16900547
PDF is available here.
PDF is available here.
Inorganic Chemistry (45)15 2006
Abstract
Two novel coordination polymers, Cu3(4-pyt)3 (1) and Co(4-pyt)2 (2) (4-pyt = pyridine-4-thiolate), have been synthesized by in situ generation of a 4-pyt ligand from a 4,4'-dithiodipyridine precursor through reductive cleavage of the disulfide bond under solvothermal conditions. 1 and 2 exhibit a th...
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PMID: 16841975
PDF is available here.
PDF is available here.
Abstract
The zirconocene enolate complex bis(2-propenolato)ZrCp2 (1) reacts with two molar equivalents of the 1,2,3,4-O-tetramethyl-alpha-D-glucopyranoside (2) with liberation of two equivalents of acetone to yield cleanly the bis(carbohydrate)zirconcene complex (3). Alternatively 1 and the "bifunctional" gl...
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PMID: 16802037
PDF is available here.
PDF is available here.
Abstract
Abstract
Templating approaches are being developed for the synthesis of inorganic nanotubes, a novel platform for nanofluidics. Single crystalline semiconductor GaN nanotubes have been synthesized using an epitaxial casting method. The partial thermal oxidation of silicon nanowires leads to the synthesis of...
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PMID: 16618091
PDF is available here.
PDF is available here.
Inorganic Chemistry (45)5 2006
Abstract
Oxygenation or peroxidation of a planar, tetracoordinate, low-spin nickel(II) complex of a N2S2-donor ligand, (N,N'-dimethyl-N,N'-bis(2-mecaptoethyl)-1, 3-propanediaminato)nickel(II), proceeds via the formation of a mixed sulfinate/thiolate complex and leads to the production of a novel dimeric comp...
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PMID: 16499349
PDF is available here.
PDF is available here.
Inorganic Chemistry (45)5 2006
Abstract
A silver-free route has been employed for the synthesis of a number of Pd and Pt complexes supported by an NCN "pincer" ligand (NCN = [2,6-(Me2NCH2)2C6H3]-) via halide abstraction. This was achieved by the use of o-, m-, and p-hydroxypyridines or o- and p-mercaptopyridines in basic ethanol solutions...
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PMID: 16499365
PDF is available here.
PDF is available here.
Inorganic Chemistry (45)5 2006
Abstract
The Friedel-Crafts reaction of cyameluric chloride with toluene and subsequent oxidation have resulted in the synthesis of a benzoic acid functionalized tri-s-triazine derivative, s-heptazine tribenzoate (HTB). Photoluminescence and mass spectroscopy data indicate that, in solution, HTB molecules in...
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PMID: 16499346
PDF is available here.
PDF is available here.
Inorganic Chemistry (45)5 2006
Abstract
Members of the cluster set [(Tp)2Mo2Fe6S8L4]z contain the core unit M2Fe6(mu3-S)6(mu4-S)2 in which two MoFe3S4 cubanes are coupled by two Fe-(mu4-S) interactions to form a centrosymmetric edge-bridged double cubane cluster. Some of these clusters are synthetic precursors to [(Tp)2Mo2Fe6S9L2]3-, whic...
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PMID: 16499360
PDF is available here.
PDF is available here.