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TABLE OF CONTENTS

Volume 21 Issue 10 , Pages 821 - 918 (October 2007)


Contents

Contents (p i-v)

Published Online: Aug 29 2007 11:42AM
DOI: 10.1002/aoc.1328

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Bioorganometallic Chemistry

Ferrocene-based derivative bearing phenol group recognitive sites: efficient H2PO4- receptor (p 821-825)
X. F. Shang, H. Lin, X. F. Xu, P. Jiang, H.. Lin
Published Online: Jul 24 2007 6:23AM
DOI: 10.1002/aoc.1254

 

The anion-binding properties of ferrocene-based receptors bearing phenol group are evaluated for F-, Cl-, Br-, I-, AcO- and by UV-vis, 1H NMR titration and cyclic voltammetry experiments. Results indicate that the anion binding abilities can be effectively tuned by introducing nitro group in the ortho position of phenyl ring of the receptors, and the most obvious effect is for .

 

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Retracted: Synthesis, characterization and reactivity towards first-row d-transition metals and biological significance of new pyridinyl derived N-substituted sulfonamides (p 826-835)
Muhammad M. Naseer, Zahid H. Chohan
Published Online: Jul 31 2007 6:33AM
DOI: 10.1002/aoc.1299

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Materials, Nanoscience and Catalysis

Preparation and catalytic properties of a bimetallic SnbondPt complex in the supercages of NaY zeolite by use of surface organometallic chemistry (p 836-840)
Ying Zheng, Xuxu Wang, Xianzhi Fu,emei Wei
Published Online: Jul 4 2007 5:43AM
DOI: 10.1002/aoc.1280

 

The grafted Me3Sn-complex alters the electronic properties of Pt atoms, and thus results in decreased CO desorption temperature on the grafted sample.

 

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Effects of synthesis parameters on zeolite membrane formation and performance by microwave technique (p 841-848)
N.uanchertchoo, R. Suwanpreedee, S.ulprathipanja, P. Aungkavattana, D. Atong,. Hemra, T. Rirksomboon, S. Wongkasemjit
Published Online: Jul 2 2007 10:59AM
DOI: 10.1002/aoc.1295

 

Synthesized continuous NaA membranes were prepared using a 0.5 µm NaA crystal seed via vacuum seeding. The optimum conditions were 363 synthesis temperature for 15-20 min via microwave heating. The flux and separation factor obtained were 1.56g/m2 h and 1760.52, respectively, for the substrate without an intermediate layer. Interestingly, the substrate with an intermediate layer showed better flux and separation factor at 1.69g/m2 h and 6532.72, respectively.

 

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A novel route to perovskite lead zirconate from lead glycolate and sodium tris(glycozirconate) via the sol-gel process (p 849-857)
N. Tangboriboon, A. Jamieson, A. Sirivat, S. Wongkasemjit
Published Online: Jul 24 2007 6:26AM
DOI: 10.1002/aoc.1303

 

A perovskite lead zirconate was synthesized, using lead glycolate and sodium tris (glycozirconate) as the starting precursors, by the sol-gel process. The structure obtained was the orthorhombic form when calcined at low temperature at 300 °C for 1 h and transformed to the monoclinic and cubic forms of the perovskite phase at higher temperatures above the Curie temperature as verified by X-ray data. The lead zirconate synthesized and calcined at 300 °C for 1 h has the highest dielectric constant, the highest electrical conductivity, and the dielectric loss tangent of 2267, 3.058 × 10-4 (.m)-1, and 2.484 at 1000 Hz, respectively.

 

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Surface modification of quarry stone by hexamethyldisiloxane plasma treatment (p 858-861)
Jose A. López-Barrera, Alejandro Avila-Ortega, Juan Morales, Jorge Cervantes, Roberto Olayo
Published Online: Jul 31 2007 6:41AM
DOI: 10.1002/aoc.1304

 

The surface of quarry stone was modified by continuous plasma polymerization of hexamethyldisiloxane. The hydrophilic surface of the quarry stone was made hydrophobic and impermeable to water. Three different reaction times were analyzed. Contact angle and FT-IR analyses show that the hydrophobic character of the surface is due to methyl groups on the surface. The change in the contact angle with temperature and the wetting temperature (Tw) were measured.

 

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Synthesis and physicochemical studies of ferrocene-containing materials (p 862-869)
Naseer Iqbal, Muhammad Saif ullahhan, M. Adnan Saeed, Zareen Akhter
Published Online: Aug 7 2007 4:46AM
DOI: 10.1002/aoc.1266

 

Three aromatic diamines, 2,6-di-(4- aminophenyloxy) toluene (A), 2,2-di-[4-(4-aminophenyloxy) phenyl] propane (B) and 4,4 -di (4-aminophenyloxy) biphenyl (C), were obtained by reacting 2,6-dihydroxytoluene, bisphenol-A and 4,4-dihydroxybiphenyl with p-nitrochlorobenzene. The synthesized diamines were then polymerized with 1,1-ferrocenedicarboxylic acid chloride with low-temperature polycondensation to produce organometallic aromatic polyamides (aramids). The synthesized monomers and polymers were characterized by their solubilities, elemental analysis, FTIR spectroscopy and 1H-NMR spectroscopy. The inherent viscosities, differential scanning calorimetry and thermogravimetry were also used for polymer characterization.

 

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alpha-olefin homopolymerization and ethylene/1-hexene copolymerization catalysed by novel ansa-group IV complexes/MAO system (p 870-879)
Xiaoxia Yang, Yong Zhang, Jiling Huang
Published Online: Aug 7 2007 4:44AM
DOI: 10.1002/aoc.1298

 

The new ansa-complexes were used on ethylene homopolymerization, -olefin homopolymerization, ethylene/-olefin copolymerization. When tBu was introduced into the para position on phenyl groups in (Ph2C(Cp)(Ind) ZrCl2), the activity and the incorporation of 1-hexene on copolymerization were both increased.

 

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Main Group Metal Compounds

Synthetic, spectral, thermal and antimicrobial studies on some bis(N,Nprime-dialkyldithiocarbamato) antimony(III) alkylenedithiophosphates (p 880-889)
H. P. S. Chauhan, U. P. Singh
Published Online: Jul 2 2007 5:07AM
DOI: 10.1002/aoc.1290

 

Bis(N,N-dialkyldithiocarbamato)antimony(III) alkylenedithiophosphate of the type [R2NCS2]2SbS(S) [where NR2 = N(CH3)2, N(C2H5)2 and N(CH2)4; G = CH2C(C2H5)2CH2, CH2C(CH3)2CH2, CH(CH3)CH(CH3)and C(CH3)2C(CH3)2] were synthesized and characterized by physico-chemical, spectral [UV, IR and NMR (1H, 13C and 31P)] and thermal (TG, DTA and DSC) analysis. The TG decomposition step of the complex indicated the formation of Sb2S3 as final product. The melting point of these complexes was confirmed by DSC analysis. These complexes were screened for antibacterial and antifungal activity using the disk diffusion method. All the complexes showed good affinity as antibacterial and antifungal agents, which increased with increasing concentration.

 

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Synthesis, spectroscopic characterization and biocidal activity of some diorganotin(IV) complexes of salicylaldehydethiosemicarbazones and related ligands. Molecular and supramolecular structures of [R2Sn(OArCHdbondNbondNdbondCSNH2)], where R = Me, Ph and Ar = bond C6H4, bondC6H3(5-Br) and C6H3(5-Cl), and of [Me2Sn{OC6H3(5-Br)CHdbondNbondNdbondCSNH2}]·OH2 (p 890-905)
Moumita Sen Sarma, Shibnath Mazumder, Debabrata Ghosh, Abhijit Roy, Andrew Duthie, Edward R. T. Tiekink
Published Online: Jul 31 2007 6:39AM
DOI: 10.1002/aoc.1301

 

A series of organotin compounds have been characterised spectroscopically and by X-ray crystallography. The tin atom is penta-coordinated in each case and the majority of structures associate via eight-membered {N-C-N-H}2 synthons. The efficacy of these compounds against a range of bacteria, fungi, plant pathogens and human cancer cell lines is also described.

 

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Book Reviews

Ulrich Schubert and Nicola Hüsing. Synthesis of inorganic materials. Wiley-VCH, 2004, 2nd edn, revised and updated, 429 pp; ISBN 978-3-527-31037-1 (paperback) (p 906)
Richard E. Douthwaite
Published Online: Aug 29 2007 11:42AM
DOI: 10.1002/aoc.1256

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Michael M. Haley and Rik R. Tykwinski (Editors). Carbon-rich compounds: from molecules to materials. Wiley-VCH, 2006, 663pp; ISBN 3-527-31224-2 (hardcover) (p 907-908)
Nigel T. Lucas
Published Online: Aug 29 2007 11:42AM
DOI: 10.1002/aoc.1296

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Materials, Nanoscience and Catalysis

Preparation of size-controlled In2O3 nanoparticles (p 909-912)
Peng Zhu, Weiya Wu, Jianping Zhou, Wu Zhang
Published Online: Aug 7 2007 4:40AM
DOI: 10.1002/aoc.1300

 

By thermo-decomposition of the In(dipy)3Cl3·2H2O (dipy = , -dipyridyl) precursor in the presence of stabilizing surfactant, quasimonodisperse and size-controlled In2O3 nanoparticles were synthesized. The PL emission at 378 nm was found at room temperature.

 

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Main Group Metal Compounds

Synthesis and characterization of diorganotin(IV) complexes of Schiff bases with ONO-type donors and crystal structure of [N-(2-hydroxy-4-nitrophenyl)-3-ethoxysalicylideneiminato]diphenyltin(IV) (p 913-918)
Mustafa Çelebier, Ertan Scedilahin, Nilgün Ancinodotn, Nurscedilen Altuntascedil Öztascedil, Selma Gül Öztascedil
Published Online: Aug 30 2007 6:22AM
DOI: 10.1002/aoc.1311

 

Three diorganotin(IV) complexes of N-(2-hydroxy-4-nitrophenyl)-salicylidene- imine derivatives have been prepared and the new compounds characterized by C, H, N analysis, mass, IR, 1H-NMR and 13C-NMR spectroscopy. The crystal structure of (C6H5)2Sn(OC6H3OC2H5CH = NC6H3NO2O) was characterized by single crystal X-ray diffraction analysis. A coordination geometry nearly half-way between trigonal-bipyramidal- and square pyramidal- arrangement (trigonality index: = 0.49) was inferred. In the solid state, - interactions between the aniline fragments of neighbouring molecules exist with a centroidal distance of 3.734 (5) Å and a slip angle of 19.1° .

 

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Errata

Erratum: Preparation of size-controlled In2O3 nanoparticles (p vii)
Peng Zhu, Weiya Wu, Jianping Zhou, Wu Zhang
Published Online: Sep 6 2007 11:23AM
DOI: 10.1002/aoc.1332


Erratum: Synthesis and characterization of diorganotin(IV) complexes of Schiff bases with ONO-type donors and crystal structure of [N-(2-hydroxy-4-nitrophenyl)-3-ethoxysalicylideneiminato]diphenyltin(IV) (p viii)
Mustafa Çelebier, Ertan Scedilahin, Nilgün Ancinodotn, Nurscedilen Altuntascedil Öztascedil, Selma Gül Öztascedil
Published Online: Sep 6 2007 11:23AM
DOI: 10.1002/aoc.1333


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