IOSR Journal of Applied Chemistry最新文献

Comaprison of Iron Nanowires Fabricated via Porous Anodic Aluminium Oxide Template by a.c and d.c. Electrodeposition 交流与直流电沉积多孔阳极氧化铝模板制备铁纳米线的比较

IOSR Journal of Applied Chemistry Pub Date : 2017-07-01 DOI: 10.9790/5736-1007011820

Prabhjot Kaur, Sangeeta Sharma, M. Kushwaha

引用次数: 0

NMR, ESR, NQR and IR Studies of Paramagnetic Macrocyclic Complexes of 1st Transition Series Metal Ions Exhibiting MLCT Phenomenon: A DFT Application. Part: III. Tris (2, 2- bipyridine) Complexes 显示MLCT现象的第一过渡系列金属离子顺磁性大环配合物的NMR、ESR、NQR和IR研究:DFT应用。第三部分:。三(2,2 -联吡啶)配合物

IOSR Journal of Applied Chemistry Pub Date : 2017-07-01 DOI: 10.9790/5736-1006027884

M. Sehgal, A. Aggarwal, Sunaina Singh

{"title":"NMR, ESR, NQR and IR Studies of Paramagnetic Macrocyclic Complexes of 1st Transition Series Metal Ions Exhibiting MLCT Phenomenon: A DFT Application. Part: III. Tris (2, 2- bipyridine) Complexes","authors":"M. Sehgal, A. Aggarwal, Sunaina Singh","doi":"10.9790/5736-1006027884","DOIUrl":"https://doi.org/10.9790/5736-1006027884","url":null,"abstract":"DFT implemented in ADF.2012.01 was applied to study the structures of three macrocyclic paramagnetic hexa coordinate complexes: [L3M] 2+ {M=V(II), Ni(II)}, and [L3Cr] 3+ (L=2,2  -bipyridine) by four spectral techniques. After their pre-optimization, the software was run by using Single Point, LDA, Default, Relativity, Spin Orbit, ZORA, Unrestricted, None, Collinear, Nosym using TZP or TZ2P Basis sets in ESR/EPR/EFG/ZFS Program to obtain ESR parameters: g11, g22, g33, giso, a11, a22, a33, Aten. More ESR parameters (gn. Aten, ZFS) and NQR parameters {, q11, q22, q33, NQCC} were obtained by replacing Spin Orbit by scalar command in a new ADF Input. The software was, then, run using the “NMR Program” with Single Point, Default, None, Collinear, Nosym using the same Basis sets leaving unrestricted command blank to obtain Shielding Constants (σM, σ 13 C, σ 17 O), Chemical Shifts (δM, δ 13 C, δ 17 O), two diamagnetic, four paramagnetic and four spin orbit contributing terms in σ values of the constituents. The software was also run to obtain IR frequencies of normal modes of the (3n-6) fundamental vibration bands of the complexes. Five parameters: σ, δ, g.Aten, , NQCC of 14 N; four parameters: σ, δ, g.Aten,  of 13 C and three parameters: σ, δ, g.Aten, of 1 H corroborated to infer that the 30 Carbons were of 5 different types, the 24 Hydrogens were of 4 different types but the 6 Nitrogens were of the same type spatially in the three studied complexes. This study was important because we could confirm MLCT phenomenon by NMR; calculated four more NMR, ESR and NQR parameters: H^, Ehf, Asymmetric coefficient (), Laplace equation; classified the 177 bands into their vibration symmetries and IR activities and calculated some thermal parameters of the complexes.","PeriodicalId":14488,"journal":{"name":"IOSR Journal of Applied Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84608472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Determination of Cyproheptadine Hydrochloride Drugs in Pure Form and In Their Pharmaceutical Preparation with Pyridinium Fluorochromate (PFC) Reagent 用氟铬酸吡啶(PFC)试剂测定纯品盐酸赛庚啶及其制剂

IOSR Journal of Applied Chemistry Pub Date : 2017-07-01 DOI: 10.9790/5736-1007020104

A. Pandey, D. Dwivedi

引用次数: 3

“Characterization and Green Synthesis of Silver Nanoparticles from Plumeria Leaves Extracts: Study of Their Antibacterial Activity”. 鸡蛋花叶提取物中银纳米粒子的表征和绿色合成及其抗菌活性研究

IOSR Journal of Applied Chemistry Pub Date : 2017-07-01 DOI: 10.9790/5736-1007015763

Vinay. S.P

引用次数: 8

A Facile Plant Mediated Synthesis of Magnetite Nanoparticles Using Aqueous Leaf Extract of Ficus Hispida L. for Adsorption of Organic Dye 利用榕叶水提物制备吸附有机染料的纳米磁铁矿

IOSR Journal of Applied Chemistry Pub Date : 2017-07-01 DOI: 10.9790/5736-1007013543

A. Ramesh, B. Lavakusa, B. Mohan, Y. P. Kumar, D. Devi, K. Basavaiah

{"title":"A Facile Plant Mediated Synthesis of Magnetite Nanoparticles Using Aqueous Leaf Extract of Ficus Hispida L. for Adsorption of Organic Dye","authors":"A. Ramesh, B. Lavakusa, B. Mohan, Y. P. Kumar, D. Devi, K. Basavaiah","doi":"10.9790/5736-1007013543","DOIUrl":"https://doi.org/10.9790/5736-1007013543","url":null,"abstract":"A facile and eco-friendly method for the synthesis of magnetite nanoparticles (Fe3O4 NPs) via CoPrecipitation in the presence of aqueous leaf extract of Ficus hispida L. The optical, crystalline, structural morphology and magnetic behaviour of the synthesized Fe3O4 NPs were characterized by Ultraviolet-Visible (UV-Vis), Fourier transform infrared (FTIR) spectroscopy, powder X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM) and vibrating sample magnetometer (VSM). The absorption spectrum reveals the peak at 379 nm, which confirm the formations of Fe3O4 NPs. XRD results reveals the formation of phase pure Fe3O4 NPs with cubic inverse spinel structure with crystallite sizes of 11.04 nm. The FESEM and TEM images clearly show that the spherical shape of Fe3O4 NPs with average particles size of 10.96 nm. Bright circular rings in the selected area electron diffraction (SAED) pattern showed good crystallinity. VSM results show super paramagnetic behaviour of Fe3O4 NPs. The synthesized Fe3O4 NPs have potential to adsorption of Methylene Blue(MB)","PeriodicalId":14488,"journal":{"name":"IOSR Journal of Applied Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81330341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

An Assessment of the Proximate Composition and Antibacterial Activity of Crinum Zeylanicum Bulb Extracts Used in the Treatment of Bone Setting and Healing 用于骨固定和愈合治疗的红草球茎提取物的近似组成和抗菌活性的评估

IOSR Journal of Applied Chemistry Pub Date : 2017-07-01 DOI: 10.9790/5736-1006025560

Daben, J. M, Dashak, D. A, Daben, M.R, Jock, A.A, Onaji, J.O

{"title":"An Assessment of the Proximate Composition and Antibacterial Activity of Crinum Zeylanicum Bulb Extracts Used in the Treatment of Bone Setting and Healing","authors":"Daben, J. M, Dashak, D. A, Daben, M.R, Jock, A.A, Onaji, J.O","doi":"10.9790/5736-1006025560","DOIUrl":"https://doi.org/10.9790/5736-1006025560","url":null,"abstract":"The proximate composition and antibacterial activity of Crinum zeylanicum bulb was evaluated with the aim of understanding the rationale usage by herbal traditional practitioners on trouble skin and bone setting/healing. Aqueous, ethanol and n-hexane extracts were tested on Staphylococcus aureus, Streptococcus pneumoniae, Bacillus cereus, Escherichia coli, Salmonella typhi and Shigella dysenteriae using the agar well diffusion technique and zones of inhibition in diameter. The proximate parameters analyzed revealed the presence of moisture (39.58%±1.16), ash (6.26%±2.13), crude fiber (26.55%±0.68) crude fat (5.00%±0.00), total carbohydrate (43.95% ±2.15) , nitrogen (0.51%±0.06), crude protein (3.19%±0.01) and reducing sugar (0.49), The antibacterial screening results revealed that the aqueous extract showed marked inhibitory effect on the test organisms than other extracts at significant difference of ≤ 0.01 and more pronounce on S.pneumoniae while S. aureus was found to be the most sensitive toward antibacterial activity of ethanol extract and then the n-hexane extract showed no activity on the test organisms except for S. pneumoniae at (400-50mg/cm 3 ) concentrations and at 400mg/cm 3 for S. aureus. The MIC and MBC for the three extracts also concurred that water extract have higher potential of preventing the activity of the bacteria than the ethanol and n-hexane extracts. These results indicate that the bulb of C zeylanicum contained essential nutrients and antibacterial effects suitable for health benefit as it explained the medicinal action of the plant encountered in its therapeutic uses","PeriodicalId":14488,"journal":{"name":"IOSR Journal of Applied Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90206978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Direct Electrochemical Synthesis of Bismuth (III) Thiolates/Dithiolates and Their Coordination Compounds 铋(III)硫代酸酯/二硫代酸酯及其配位化合物的直接电化学合成

IOSR Journal of Applied Chemistry Pub Date : 2017-07-01 DOI: 10.9790/5736-1006023235

H. Kaur, Baljit Singh

引用次数: 1

Electron Releasing Effect on the Thermodynamic and Transport Properties of Liquid Mixtures at Various Temperatures 不同温度下电子释放对液体混合物热力学和输运性质的影响

IOSR Journal of Applied Chemistry Pub Date : 2017-07-01 DOI: 10.9790/5736-1007021227

M. Raghavendra, A. Venkatesulu, K. S. Rao, P. Venkateswarao

{"title":"Electron Releasing Effect on the Thermodynamic and Transport Properties of Liquid Mixtures at Various Temperatures","authors":"M. Raghavendra, A. Venkatesulu, K. S. Rao, P. Venkateswarao","doi":"10.9790/5736-1007021227","DOIUrl":"https://doi.org/10.9790/5736-1007021227","url":null,"abstract":"Densities (ρ), speeds of sound (u), and viscosities (η) are reported for binary mixtures of N,N-diethyl aniline with 1-alkanols (1-hexanol, 1-heptanol and 1-octanol) over the entire composition range of mole fraction at T = (303.15 318.15) K and at atmospheric pressure 0.1 MPa. The excess properties such as excess molar volume, excess isentropic compressibility and deviations in viscosity are calculated from the density, speed of sound and viscosity. Excess properties are correlated using the Redlich – Kister equation. The excess partial molar volumes and excess partial molar isentropic compressibilities are calculated for all the binary systems throughout the composition range and also at infinity dilutions. The results are analyzed in terms of ruptureofhydrogenbonded chainofthedipolar interaction betweensoluteand1alkanolexceedstheintermolecular interactionthroughdipole-dipoleandhydrogenbonding betweenN, N-diethyl anilineand1-alkanolmolecules.The V E results are analyzed in the light of Prigogine-Flory-Patterson theory. Analysis of each of the three contributions viz. interactional, free volume and P* to V E has shown that interactional contribution are positive for all systems, both the free volume effect and P* contribution are negative for all the mixtures.","PeriodicalId":14488,"journal":{"name":"IOSR Journal of Applied Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91519043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Applications of Amberlite XAD based Chelating resins in Online Pre concentration of metal ions Amberlite XAD基螯合树脂在金属离子在线预富集中的应用

IOSR Journal of Applied Chemistry Pub Date : 2017-07-01 DOI: 10.9790/5736-1006024454

P. L. Meena, R. Saxena

引用次数: 0

Metal Complexes of quinolin-8-yl (1, 3-benzoxazol-2-ylsulfanyl) acetate: Spectral, XRD, thermal, molecular docking and biological evaluation 喹啉-8-基(1,3 -苯并恶唑-2-基磺胺基)乙酸酯金属配合物:光谱、XRD、热、分子对接和生物学评价

IOSR Journal of Applied Chemistry Pub Date : 2017-07-01 DOI: 10.9790/5736-1006023643

N. S.V, A. VishnumurthyK., H. Naik, T. Manjuraj, D. JayannaN

{"title":"Metal Complexes of quinolin-8-yl (1, 3-benzoxazol-2-ylsulfanyl) acetate: Spectral, XRD, thermal, molecular docking and biological evaluation","authors":"N. S.V, A. VishnumurthyK., H. Naik, T. Manjuraj, D. JayannaN","doi":"10.9790/5736-1006023643","DOIUrl":"https://doi.org/10.9790/5736-1006023643","url":null,"abstract":"The series of Co (II), Ni (II) and Cu(II) metal complexes quinolin-8-yl (1,3-benzoxazol-2ylsulfanyl)acetate (BZ) have been synthesized. All the complexes thoroughly characterized by different physicochemical and spectroscopic techniques (UV-Vis, IR, NMR and ESI-Mass). The powder XRD indicates the crystalline state and morphology of Ni (II) and Cu (II) metal complexes, the thermal stability of the metal complexes as been performed. In the current study, the synthesized compounds were evaluated for their antioxidant activity by using DPPH assay, Cu (II) metal complex exhibited higher antioxidant activity almost close to the standard BHT. In addition, antioxidant activity is correlated with docking interactions of human antioxidant enzyme receptor with the competitive inhibitor DTT (PDB: 3MNG), which showed greater binding interactions with metal complexes. The antimicrobial studies has been carried out against different bacterial and fungal strains and the results showed that metal complexes be more active than the ligand BZ. Keywords; Benzoxazole, metal complex, XRD, Antioxidant, molecular docking.","PeriodicalId":14488,"journal":{"name":"IOSR Journal of Applied Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76766869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2