bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synthesis and characterization of new polyamides containing p‐phenylenediacryloyl moieties in the main chain
Authors: Faghihi Khalil , Naghavi Howra 
Published: January 2008

AbstractSix new polyamides 8a–f containing p‐phenylenediacryloyl moieties in the main chain were prepared by the direct polycondensation reaction of bis(p‐amidobenzoic acid)‐p‐phenylene diacrylic acid 6 with 1,4‐diphenylene diamine 7a, 1,3‐diamino toluene 7b, 1,5‐diamino naphthalene 7c, 4,4′‐diamino diphenyl ether 7d, 4,4′‐diamino diphenyl sulfone 7e, and 3,3′‐diamino diphenylsulfone 7f by using thionyl chloride, N‐methyl‐2‐pyrolidone, and pyridine as condensing agents. These new polymers 8a–f were obtained in high yield and inherent viscosity between 0.35–0.65 dL/g. The resulting polyamides were characterized by elemental analysis, viscosity measurements, thermal gravimetric analysis (TGA and DTG), solubility test, FTIR and UV–vis spectroscopy. Diacid acid 6 as a new monomer containing p‐phenylenediacryloyl moiety was synthesized by using a three‐step reaction. First, p‐phenylenediacrylic acid 3 was prepared by reaction of terephthal aldehyde 1 with malonic acid 2 in the presence of pyridine, then diacid 3 was converted to p‐phenylenediacryloyl chloride 4 by reaction with thionyl chloride. Finally, bis(p‐amidobenzoic acid)‐p‐phenylene diacrylic acid 6 was prepared by the condensation reaction of phenylenediacryloyl chloride 4 with p‐aminobenzoic acid 5. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Improvement of the surface properties of polycarbonate by organic–inorganic hybrid coatings
Authors: Fabbri Paola , Leonelli Cristina , Messori Massimo , Pilati Francesco , Toselli Maurizio , Veronesi Paolo , Morlat‐Thérias Sandrine , Rivaton Agnès , Gardette Jean Luc 
Published: January 2008

AbstractOrganic–inorganic hybrids (ceramers) were prepared through the sol–gel process with opportune alkoxysilane‐terminated polymer chains as the organic phase and tetraethoxysilane as the inorganic network precursor. The consolidation process, used to reach a high degree of crosslinking between the two phases, was carried out with either conventional oven heating or microwave irradiation. High conversion degrees were obtained with both treatments even when microwave postcuring turned out to be much faster than conventional heating(5–10 s vs 40 min). Scratch‐test and photooxidation investigations showed a significant improvement in scratch, yellowing, and photodegradation resistance for coated polycarbonate. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Polyester polyols and polyurethanes from ricinoleic acid
Authors: Petrović Zoran S. , Cvetković Ivana , Hong DooPyo , Wan Xianmei , Zhang Wei , Abraham Tim , Malsam Jeff 
Published: January 2008

AbstractTriols of molecular weights (MWs) 1000–4000, suitable for flexible foams, were prepared by transesterification of methyl esters of ricinoleic acid with trimethylol propane. These polyols were noncrystallizing, relatively low‐viscosity liquids. They were reacted with diphenylmethane diisocyanate (MDI) to obtain elastomers having glass transition temperatures below −60°C. Polymer networks from high‐MW polyols exhibited relatively high sol fractions suggesting that some cyclization occurred during polyol preparation. The low Shore hardness, relatively low strength and modest elongation of the elastomers were attributed to the specific structure of polyricinoleic chains and the presence of dangling chains, serving as plasticizers. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Synthesis and characterization of styrene/maleimide copolymer with 4‐[N‐ethyl‐N‐(2‐hydroxyethyl) amino]‐4′‐nitroazobenzene as side chain
Authors: Pu Hongting , Liu Ling , Jiang Weichun , Li Xinwan , Chen Jianping 
Published: January 2008

AbstractRelatively low thermal stability of second‐order nonlinear optical (NLO) coefficient due to the relaxation of dipole orientation is a major problem limiting the practical application of these NLO polymers. NLO polymers with suitable Tg are always important for optical devices. In the present work a synthetic approach to styrene‐(N‐(4‐hydroxyphenyl) maleimide) copolymer (SHMI) with 4‐[N‐ethyl‐N‐(2‐hydroxyethyl) amino]‐4′‐nitroazobenzene (DR1) as side chain and chromophores has made it possible to efficiently prepare a NLO polymer. The copolymer with high Tg of 202°C has low relaxation of dipole orientation. The maximum optical loss at the optical communication wavelength is less than 0.9 dB. NLO coefficient r33 is 8.2 pm/V (1550 nm) and its maximum relaxation at room temperature is 18%. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci 2008
Preparation and characterization of nanopigment‐poly(styrene‐co‐n‐butyl acrylate‐co‐methacrylic acid) composite particles by high speed homogenization‐assisted suspension polymerization
Authors: Widiyandari Hendri , Iskandar Ferry , Hagura Nobuhiro , Okuyama Kikuo 
Published: January 2008

AbstractComposite particles of nanoblue pigment‐poly(styrene‐co‐n‐butyl acrylate‐co‐methacrylic acid) of controllable size were successfully prepared using high‐speed homogenization‐assisted suspension polymerization. This composite has potential application as a toner for high‐resolution printing. A nanosized hybrid blue pigment, with a monodispersed and uniform spherical shape, was employed for the production of composite particles. The effects of agitation speed, pigment concentration, and anionic surfactant concentration on the properties of the prepared composite particles were investigated. Agitation speed plays an important role in controlling particle size. The prepared composite particles have geometric mean diameters in the range of 4.4–7.4 μm with the geometric standard deviation ranging from 1.23 to 1.33. High‐speed homogenization during droplet formation is useful for a reduction in the size of the prepared composite particles. In addition, the appropriate surfactant concentration has a significant effect on the particles' morphology. However, the concentration of the nanopigment did not significantly change either particle morphology or particle size. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
New polyamides based on 2,5‐bis[(4‐carboxyanilino) carbonyl] pyridine and aromatic diamines: Synthesis and characterization
Authors: Faghihi Khalil , Mozaffari Zohreh 
Published: January 2008

AbstractSeven new polyamides 6a–g were synthesized through the direct polycondensation reaction of 2,5‐bis[(4‐carboxyanilino) carbonyl] pyridine 4 with seven derivatives of aromatic diamines 5a–g in a medium consisting of N‐methyl‐2‐pyrrolidone, triphenyl phosphite, calcium chloride, and pyridine. The polycondensation reaction produced a series of novel polyamides containing pyridyl moiety in the main chain in high yield with inherent viscosities between 0.32–0.72 dL/g. The resulted polymers were fully characterized by means of FTIR spectroscopy, elemental analyses, inherent viscosity, and solubility tests. Thermal properties of these polymers were investigated by using thermal gravimetric analysis and differential thermal gravimetric. All the polymers were soluble at room temperature in polar solvents, such as N,N‐dimethyl acetamide, N,N‐dimethyl formamide, dimethyl sulfoxide, and N‐methyl‐2‐pyrrolidone. 2,5‐Bis[(4‐carboxyanilino) carbonyl] pyridine 4 as a new monomer containing pyridyl moiety was synthesized by using a two‐step reaction. At first 2,5‐pyridine dicarboxylic acid 1 was converted to 2,5‐pyridine dicarbonyl dichloride 2. Then diacid 4 was prepared by condensation reaction of diacid chloride 2 with p‐aminobenzoic acid 3. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Characterization of SiO2 and Al2O3 incorporated PVdF‐HFP based composite polymer electrolytes with LiPF3(CF3CF2)3
Authors: Aravindan V. , Vickraman P. 
Published: January 2008

AbstractLithium fluoroalkylphosphate (LiPF3(CF3 CF2)3) based composite polymer electrolytes (CPE) have been prepared in the matrix of polyvinylidenefluoride‐hexafluoropropylene(PVdF‐HFP), using solvent casting technique. The membranes were gelled with ethylene carbonate and diethyl carbonate as a plasticizer and nanosized SiO2 and nanoporous Al2O3 as fillers. These membranes were subjected to a.c. impedance, DSC, SEM, FTIR, and Fluorescence studies. The a.c. impedance studies and activation energy calculation reveal that 2.5 wt % fillers containing membranes only exhibit maximum conductivity for SiO2 (1.16 mS cm−1) and Al2O3 (0.98 mS cm−1), compared to fillers free membranes and beyond 2.5 wt % of such fillers the conductivity tends to decrease. The enhancement of conductivity has been explained in terms of Vogel‐Tamman‐Fulcher (VTF) theory. Molecular interactions by FTIR and local viscosity environment by fluorescence studies have been investigated. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Investigation on the formation mechanisms of hydrogels made by combination of γ‐ray irradiation and freeze‐thawing
Authors: Yang Xiaomin , Liu Qi , Chen Xiliang , Zhu Zhiyong 
Published: January 2008

AbstractHydrogels based on poly(vinyl alcohol) (PVA)/water‐soluble chitosan (ws‐chitosan)/glycerol were prepared by γ‐ray irradiation, freeze‐thawing, and combination of γ‐ray irradiation and freeze‐thawing, respectively. The influence of freeze‐thawing cycles, the irradiation doses, and the sequence of freeze‐thawing and irradiation processes on the rheological, swelling, and thermal properties of these hydrogels was investigated to evaluate the formation mechanisms of hydrogels made by combination of irradiation and freeze‐thawing. For hydrogels made by freeze‐thawing followed by irradiation, the physical crosslinking is destroyed partially while chemical crosslinking is formed by irradiation. However, the chemical crosslinking density reduces with the increase of freeze‐thawing cycles. Hydrogels made by irradiation followed by freeze‐thawing bear less degree of physical crosslinking with the increase of irradiation dose for the increased chemical crosslinking density. It is found that these hydrogels own larger swelling capacity and better transparent appearance than those made by freeze‐thawing followed by irradiation. Moreover, the former hydrogels have larger mechanical strength than the latter at low freeze‐thawing cycles. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Effect of vinyl acetate content on the mechanical and thermal properties of ethylene vinyl acetate/MgAl layered double hydroxide nanocomposites
Authors: Kuila T. , Acharya H. , Srivastava S. K. , Bhowmick A. K. 
Published: January 2008

AbstractEthylene vinyl acetate (EVA)/Mg‐Al layered double hydroxide (LDH) nanocomposites using EVA of different vinyl acetate contents (EVA‐18 and EVA‐45) have been prepared by solution blending method. X‐ray diffraction and transmission electron microscopic studies of nanocomposites clearly indicate the formation of exfoliated/intercalated structure for EVA‐18 and completely delaminated structure for EVA‐45. Though EVA‐18 nanocomposites do not show significant improvement in mechanical properties, EVA‐45 nanocomposites with 5 wt % DS‐LDH content results in tensile strength and elongation at break to be 25% and 7.5% higher compared to neat EVA‐45. The data from thermogravimetric analysis show that the nanocomposites of EVA‐18 and EVA‐45 have ≈10°C higher thermal decomposition temperature compared to neat EVA. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Coincidence Doppler broadening spectroscopy in polyvinyl chloride after doping with Al2O3
Authors: Mohamed Hamdy F. M. 
Published: January 2008

AbstractCoincidence Doppler broadening of annihilation radiation (CDBAR) and Vickers hardness techniques were performed to study pure Al2O3, pure polyvinyl chloride (PVC), and doped PVC with different concentrations of Al2O3 (10–50%). The CDBAR ratio curves with respect to pure PVC were presented and reflect the momentum distribution of all the samples. The peak around 14.5 ×10−3 moC in the CDBAR ratio curves suggests a large contribution of positron annihilation with the Al2O3. There is a linear correlation between the height of this peak and the Al2O3 concentration. The S‐ and W‐parameters were extracted from the CDBAR spectra and increase with increasing the Al2O3 concentration showing discontinuity at 30% of Al2O3 concentration on PVC. The present data confirmed that there is no positronium formation in pure Al2O3 as a result of smaller S‐parameter. The Vickers hardness increases with increasing the Al2O3 concentration in PVC showing a linear dependence with two different slopes depend on the Al2O3 concentration range. A correlation between the Vickers hardness (macroscopic data) and the W‐parameter (microscopic data) was observed. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Chromophoric poly(urea‐urethane)s with pendent 3‐hydroxynaphthalene group: Synthesis and characterization
Authors: Mallakpour Shadpour , Rafiee Zahra 
Published: January 2008

AbstractThe reaction of 4‐(3‐hydroxynaphthalene)‐1,2,4‐triazolidine‐3,5‐dione (3HNTD) with n‐propylisocyanate was performed at different molar ratios. The resulting monosubstituted urea and disubstituted urea‐urethane derivatives were obtained in high yields and were used as model compounds for polymerization reactions. 3HNTD as a monomer was used in the preparation of heterocyclic poly(urea‐urethane)s to produce photoactive polymers, by polycondensation with different diisocyanates in N,N‐dimethylacetamide (DMAc) solution. Chromophoric heterocyclic polymers containing naphthalene group, obtained in quantitative yields, possessed inherent viscosities in the range of 0.14–0.38 dL/g. The resulting poly(urea‐urethane)s is insoluble in most organic solvents, but easily soluble in polar solvents such as dimethyl sulfoxide (DMSO), DMAc, and N‐methylpyrrolidone (NMP). The polymers were characterized by IR, 1H‐NMR, elemental analysis, and TGA. Fluorimetric and UV–vis studies of the monomer as well as polymers were performed. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Synthesis, Ultra‐Short Acting Hypnotic Activity, and Metabolic Profile of Ethyl 8‐Oxo‐5,6,7,8‐tetrahydro‐thiazolo[3,2‐a] [1,3]diazepin‐3‐carboxylate (HIE‐124)
Authors: Kadi Adnan A. , El‐Kashef Hassan A. , Abdel‐Aziz Alaa A.‐M. , Hassan Ghada S. , Tettey Justice , Grant Mary H. , Lehmann Jochen , El‐Subbagh Hussein I. 
Published: January 2008

AbstractThe synthesis and biological evaluation of ethyl 8‐oxo‐5,6,7,8‐tetrahydro‐thiazolo[3,2‐a][1,3]diazepin‐3‐carboxylate (HIE‐124, 4), as a member of a new generation of ultra‐short acting hypnotics is described. HIE‐124 4 exhibited potent in‐vivo activity with a very rapid onset of action and a shorter duration of action with no acute tolerance or noticeable side effects than thiopental sodium. The rat in‐vivo and in‐vitro metabolic profile of 4 is also described. Urine was pooled from a number of animals and analyzed using electrospray liquid chromatography mass spectrometry (ESI LC‐MS). HIE‐124 4 was incubated with rat‐liver microsomal and rat‐liver hepatocyte preparations then similarly analyzed. The only metabolic product of both in‐vitro and in‐vivo experiments is the carboxylic acid derivative 5. HIE‐124 4 has the potential use not only as a pre‐anesthetic medication and as anesthesia inducer but also has the potential to be used with thiopental sodium to maintain anesthesia for longer duration.
Synthesis and Activity of Novel 5‐Substituted Pyrrolo[2,3‐d]pyrimidine Analogues as pp60c‐Src Tyrosine Kinase Inhibitors
Authors: Ölgen Süreyya , Isgör Yasemin G , Çoban Tülay 
Published: January 2008

AbstractTherapy with receptor tyrosine kinase inhibitors provides an improved treatment option in a number of diseases such as cancer, myocardial infection, osteoporosis, stroke, and neurodegeneration. We have designed, synthesized, and evaluated a series of novel 2‐amino‐5‐[(benzyl)imino]methyl‐3,7‐dihydro‐4H‐pyrrolo[2,3‐d]pyrimidine‐4‐one 7a and 2‐amino‐5‐[(substituted‐benzyl)imino]methyl‐3,7‐dihydro‐4H‐pyrrolo[2,3‐d]pyrimidine‐4‐one 7b‐e derivatives as potential tyrosine kinase inhibitors. These compounds were synthesized by condensation reaction using 2‐tritylamino‐4‐oxo‐4,7‐dihydro‐3H‐pyrrolo[2,3‐d]pyrimidine‐5‐carbaldehyde 5 and appropriate benzylamines followed by detritylation. Compounds were evaluated for their inhibitory activity toward tyrosine phosphorylation for the pp60c‐Src tyrosine kinase. Compounds 7a, 7d, and 7e demonstrated potent inhibitory activities against pp60c‐Src tyrosine kinase with IC50 values of 13.9, 34.5, and 78.4 μM, respectively. Dihalogenated compounds 7d and 7e have 3 to 7‐times lower IC50 values than that of the parent compound 7a.
Anti‐Inflammatory and Analgesic Activities of Newly Synthesized Chiral Peptide Derivatives Using (3‐Benzoyl‐ 4,5‐dioxo‐2‐phenyl‐pyrrolidin‐1‐yl)acetic Acid Ethylester as Starting Material
Authors: Fakhr Issa M. , Amr Abdel‐Galil E. , Sabry Nermien, M. , Abdalah Mohamed M. 
Published: January 2008

AbstractA series of heterocyclic derivatives was synthesized using (3‐benzoyl‐4,5‐dioxo‐2‐phenyl‐pyrrolidin‐1‐yl)acetic acid ethyl ester 1 as starting material. Treatment of 1 with 1 N NaOH or hydrazine hydrate afford the corresponding acid 2 and acid hydrazides 4 and 5, which were reacted with several reagents to produce some new peptido hetero‐organic derivatives 6–12. The pharmacological screening showed that many of these newly synthesized compounds have good anti‐inflammatory and analgesic activities comparable to diclofenac potassium and valdecoxib as reference drugs.
3‐Methyl‐2‐(4‐substituted phenyl)‐4,5‐dihydronaphtho[1,2‐c]‐pyrazoles: Synthesis and in‐vitro Biological Evaluation as Antitumour Agents
Authors: Al‐Saadi Mohamed S. , Rostom Sherif. A. F. , Faidallah Hassan M. 
Published: January 2008

AbstractThe synthetic strategies and characterization of some novel derivatives of 3‐methyl‐2‐(4‐substituted phenyl)‐4,5‐dihydronaphtho[1,2‐c]pyrazoles carrying different pharmacophores and heterocyclic rings that are relevant to potential antitumour and cytotoxic activities are described. The antitumour activities of the newly synthesized compounds were evaluated according to the protocol of the National Cancer Institute (NCI) in‐vitro disease‐oriented human cells screening panel assay. The results revealed that six compounds, namely 6, 8, 11, 15, 17 and 18; displayed promising in‐vitro antitumour activity in the 60‐cell lines assay. The sulfonylthioureido group emerged as the most favourable pharmacophore. Incorporating such thioureido counterpart into the 6‐membered 1,3‐thiazinan‐5‐one resulted in better antitumour activities than those displayed by the 5‐membered thiazoles and the 6‐membered 1,3‐thiazinan‐4‐one ring systems. Further ring expansion led to a total loss of the antitumour activity. The analog 18, 3‐benzyl‐2‐[4‐(3‐methyl‐4,5‐dihydronaphtho‐[1,2‐c]pyrazol‐2‐yl)‐benzenesulfonylimino]‐1,3‐thiazinan‐5‐one, proved to be the most active member identified in this series of compounds (GI50, TGI, and LC50 MG‐MID values of 34.7, 85.1 and 97.7 μM, respectively). The differential cytotoxicity of the six active compounds to cancer and normal cells was studied utilizing the standard MTT cell viability assay. Compounds 17 and 18 were totally selective for the breast cancer cell line MCF7 (IC50 8.5 and 4.7 μM), without exerting any inhibitory effect on the normal breast cell line MCF‐10A at the concentration level used (25 μM).
Anti‐HAV Activity of Some Newly Synthesized Triazolo[4,3‐b]pyridazines
Authors: Shamroukh Ahmed H. , Ali Mohamed. A. 
Published: January 2008

Abstract6‐Phenyl‐[1,2,4]triazolo[4,3‐b]pyridazine‐3(2H)‐thione 2 was used as precursor for the preparation of some novel 3‐S‐substituted‐6‐phenyl‐[1,2,4]triazolo[4,3‐b]pyridazine derivatives 3–11. Furthermore, the preparation of 1‐[2‐(6‐phenyl‐[1,2,4]triazolo[4,3‐b]pyridazin‐3‐ylsulfanyl)‐acetyl]‐1H‐pyrazole derivative 13 and 5‐(6‐phenyl‐[1,2,4]triazolo[4,3‐b]pyridazin‐3‐ylsulfanylmethyl)‐[1,3,4]oxadiazole derivatives 15 and 17, are described. Some of the prepared products revealed a promising antiviral activity against hepatitis‐A virus (HAV, MBB‐cell culture adapted strain). Plaque reduction infectivity assay was used to determine virus count reduction as a result of treatment with the test compounds. Compound 15 showed the highest effect on HAV compared to the other tested compounds.
A novel pH sensitive N‐succinyl chitosan/alginate hydrogel bead for nifedipine delivery
Authors: Dai Ya‐Ni , Li Ping , Zhang Jun‐Ping , Wang Ai‐Qin , Wei Qin 
Published: January 2008

AbstractA novel N‐succinyl chitosan(Suc‐Chi)/alginate hydrogel bead was prepared by the ionic gelation method for the controlled delivery of nifedipine. The structure and surface morphology of the hydrogel were characterized by FTIR and SEM, respectively. Factors influencing the swelling ability of the hydrogel bead were also investigated, such as the ratio of Suc‐Chi and alginate (X1), the weight ratio of drug to polymer (X2), the volume ratio of alginate/Suc‐Chi to CaCl2 (X3), crosslinking time (X4), CaCl2 concentration (X5). In addition, the delivery behavior of nifedipine from the hydrogel bead was studied. The amount of nifedipine released from the hydrogel bead at pH 1.5 was relatively low (11.6%), while this value approached 76% at pH 7.4. The results clearly suggested that the Suc‐Chi/alginate hydrogel bead may be a potential polymeric carrier for drug delivery in the intestinal tract. The release of nifedipine from the hydrogel bead at various pH values was analysed by a semi‐empirical equation and it was found that the drug release mechanisms were either ‘anomalous transport’ or ‘case‐II transport’. Copyright © 2008 John Wiley & Sons, Ltd.
Student assessment in large‐enrollment biology classes
Authors: Alonso Manuel , Stella Carlos , Galagovsky Lydia 
Published: January 2008

AbstractEnrollments into first‐year university biology courses may be very large, and therefore evaluating student learning can represent quite a challenge. In this article, we present our experience in assessing students by means of an assessment instrument called “Understand Before Choosing” (UBC). It has been used for six semesters, and its performance has been compared with two other common means of assessment, the use of multiple‐choice questions and the use of open‐ended questions. UBC consists of a text (100 lines, nearly 700 words) on the subject being tested, and a set of carefully worded questions that require the selection of one of five crafted options to be answered. To choose the best option, a student needs to understand the concepts embedded in the text.
ChemInform Abstract: Prediction and Characterization of a New Kind of Alkali—Superhalogen Species with Considerable Stability: MBeX3 (M: Li, Na; X: F, Cl, Br).
Authors: Cui Song‐Hua , Li Ying , Wang Fang‐Fang , Wu Di , Li Zhi‐Ru 
Published: January 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Compressibilities of Disordered Fluoride Pyrochlores NaCdZn2F7 and NaCaMg2F7.
Authors: Grzechnik Andrzej , Posse Jose Maria , Morgenroth Wolfgang , Friese Karen 
Published: January 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Solid‐State Synthesis, Structural Variants and Transformation of Three‐Dimensional Sulfides, AGaSnS4 (A: Na, K, Rb, Cs, Tl) and Na1.263Ga1.263Sn0.737S4.
Authors: Kumari Asmita , Vidyasagar Kanamaluru 
Published: January 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.