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Alipoor R, Mohammadizadeh MR, Saberi D. New One-Pot Pathway for the Synthesis of 2H–Pyrrolo[2,3-d]Pyrimidine-2,4-(3H)-Diones and 1H-Benzo[f]Indole-4,9-Dione Derivatives Substituted 3-Hydroxy-1,4-Naphthoquinonyl. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2032766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Rayhaneh Alipoor
- Chemistry Department, Faculty of Bio and Nano Science and Technology, Persian Gulf University, Bushehr, Iran
| | - Mohammad Reza Mohammadizadeh
- Chemistry Department, Faculty of Bio and Nano Science and Technology, Persian Gulf University, Bushehr, Iran
- Oil and Gas Research Center, Persian Gulf University, Bushehr, Iran
| | - Dariush Saberi
- Chemistry Department, Faculty of Bio and Nano Science and Technology, Persian Gulf University, Bushehr, Iran
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Hashemi SA, Mohammadizadeh MR. Triethylamine‐Promoted Stereoselective Synthesis of Dialkyl 2‐Thiofumarates by the Reaction of Thiols and Dialkyl Acetylenedicarboxylates. ChemistrySelect 2021. [DOI: 10.1002/slct.202004095] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Mousavi SH, Mohammadizadeh MR, Poorsadeghi S, Arimitsu S, Mohammadsaleh F, Kojya G, Gima S. One-pot synthesis of new alkyl 1-naphthoates bearing quinoline, pyranone and cyclohexenone moieties via metal-free sequential addition/oxidation reactions. RSC Adv 2021; 11:36748-36752. [PMID: 35494386 PMCID: PMC9043593 DOI: 10.1039/d1ra07092d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 11/09/2021] [Indexed: 11/25/2022] Open
Abstract
A mild and one-pot synthetic pathway was successfully developed for the synthesis of new naphthoate-based scaffolds containing quinoline, pyranone and cyclohexenone moieties via a multistep reaction between acenaphthoquinone and various 1,3-diketones in the presence of different primary aliphatic and benzylic alcohols. This reaction proceeds via a sequential addition/oxidation mechanistic process including a metal-free addition step of acenaphthoquinone and 1,3-diketones followed by the H5IO6-mediated C–C oxidative cleavage of the corresponding vicinal diols at room temperature. The alcohols play a dual role, as the reaction solvent as well as the nucleophile, to conduct the reaction process toward naphthoate formation. All alkyl naphthoate derivatives prepared in this work are new compounds and were definitively characterized using 1H-NMR, 13C-NMR and HRMS analysis, while X-ray crystallography was carried out for one of the products. The synthesis of a naphthalene-based nucleus attached to heterocyclic moieties is noteworthy to follow in the near future for diverse applications in biology, medicine, metal complex design, and semiconductor and optical materials. Various new alkyl 1-naphthoates bearing quinoline, pyranone and cyclohexenone moieties were successfully synthesized by a one-pot sequential addition/oxidation process.![]()
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Affiliation(s)
- Seyedeh Hekmat Mousavi
- Department of Chemistry, Faculty of Nano and Bioscience and Technology, Persian Gulf University, Bushehr 75169, Islamic Republic of Iran
| | - Mohammad Reza Mohammadizadeh
- Department of Chemistry, Faculty of Nano and Bioscience and Technology, Persian Gulf University, Bushehr 75169, Islamic Republic of Iran
| | - Samira Poorsadeghi
- Department of Chemistry, Biology and Marine Science, Faculty of Science, University of the Ryukyus, 1-Senbaru, Nakagami, Nishihara, Okinawa, 903-0213, Japan
| | - Satoru Arimitsu
- Department of Chemistry, Biology and Marine Science, Faculty of Science, University of the Ryukyus, 1-Senbaru, Nakagami, Nishihara, Okinawa, 903-0213, Japan
| | - Fatemeh Mohammadsaleh
- Department of Chemistry, Faculty of Nano and Bioscience and Technology, Persian Gulf University, Bushehr 75169, Islamic Republic of Iran
| | - Genta Kojya
- Center for Research Advancement and Collaboration, University of the Ryukyus, Senbaru 1, Nishihara, Okinawa 903-0213, Japan
| | - Shinichi Gima
- Center for Research Advancement and Collaboration, University of the Ryukyus, Senbaru 1, Nishihara, Okinawa 903-0213, Japan
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Mousavi S, Mohammadizadeh MR, Roshan Z, Jamaleddini A, Arimitsu S. One-Pot Synthesis of Spiro-isobenzofuran Compounds via the Sequential Condensation/Oxidation Reaction of Ninhydrin with 4-Amino-1,2-naphthoquinones/2-Amino-1,4-naphthoquinones under Mild Conditions. ACS Omega 2020; 5:18273-18288. [PMID: 32743203 PMCID: PMC7392522 DOI: 10.1021/acsomega.0c01934] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 07/07/2020] [Indexed: 05/28/2023]
Abstract
A one-pot route for the synthesis of spiro-isobenzofuran compounds was developed via the condensation reaction of ninhydrin with 4-amino-1,2-naphthoquinones or 2-amino-1,4-naphthoquinones in acetic acid followed by the oxidative cleavage of the corresponding vicinal diols at room temperature. Various derivatives of spiro[benzo[g]indole-2,1'-isobenzofuran]-3,3',4,5(1H) tetraones and spiro[benzo[f]pyrrolo[2,3-h]quinoxaline-2,1'-isobenzofuran]-3,3'(1H)-diones were synthesized in good to high yields. Moreover, further condensation of spiro[benzo[g]indole-2,1'-isobenzofuran]-3,3',4,5(1H)-tetraones with 1,2-diamines resulted in the new spiro-isobenzofuran compounds having phenazine rings in high yields.
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Affiliation(s)
- Seyedeh
Hekmat Mousavi
- Department
of Chemistry, Faculty of Sciences, Persian
Gulf University, Bushehr 75169, Iran
| | - Mohammad Reza Mohammadizadeh
- Department
of Chemistry, Faculty of Sciences, Persian
Gulf University, Bushehr 75169, Iran
- Oil
and Gas Research Center, Persian Gulf University, Bushehr 75169, Iran
| | - Zohreh Roshan
- Department
of Chemistry, Faculty of Sciences, Persian
Gulf University, Bushehr 75169, Iran
| | - Azar Jamaleddini
- Department
of Chemistry, Faculty of Sciences, Persian
Gulf University, Bushehr 75169, Iran
| | - Satoru Arimitsu
- Department
of Chemistry, Biology and Marine Science, University of the Ryukyus, Senbaru 1, Nakagami, Nishihara, Okinawa 903-0213, Japan
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Mousavi SH, Mohammadizadeh MR, Arimitsu S, Saberi D, Poorsadeghi S, Genta K. Metal-free syntheses of new azocines viaaddition reactions of enaminones with acenaphthoquinone followed by oxidative cleavages of the corresponding vicinal diols. RSC Adv 2020; 10:20552-20557. [PMID: 35517728 PMCID: PMC9054298 DOI: 10.1039/d0ra02852e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 05/22/2020] [Indexed: 11/21/2022] Open
Abstract
A one-pot, clean and green procedure is described for the syntheses of new azocine derivatives via addition reactions of enaminones with acenaphthoquinone followed by periodic acid-mediated oxidative cleavages of the corresponding vicinal diols. Various derivatives of azocine were prepared and well characterized. The excellent yields, simple synthesis procedure, lack of a need to carry out any tedious work-up and column chromatography, metal-free catalysis, and mild reaction conditions are important features of this protocol. One-pot metal-free periodic acid-mediated syntheses of azocine rings with high yields under mild reaction conditions via the addition reactions of enaminones and acenaphthoquinone.![]()
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Affiliation(s)
- S. Hekmat Mousavi
- Department of Chemistry
- Faculty of Sciences
- Persian Gulf University
- Bushehr 75169
- Iran
| | | | - Satoru Arimitsu
- Department of Chemistry, Biology and Marine Science
- Faculty of Science
- University of the Ryukyus
- Nakagami
- Japan
| | - Dariush Saberi
- Marine Chemistry Department
- Faculty of Marine Science and Technology
- Persian Gulf University
- Bushehr 75169
- Iran
| | - Samira Poorsadeghi
- Department of Chemistry, Biology and Marine Science
- Faculty of Science
- University of the Ryukyus
- Nakagami
- Japan
| | - Kojya Genta
- Center for Research Advancement and Collaboration
- University of the Ryukyus
- Okinawa 903-0213
- Japan
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Hashemi SA, Mohammadizadeh MR. Catalyst‐Free Efficient Synthesis of Alkyl Acetates Bearing Arylsulfide and Quinoxaline Moieties and Stereoselective Synthesis of Dialkyl 2‐Amino‐3‐thiomalates at Room Temperature. ChemistrySelect 2019. [DOI: 10.1002/slct.201901287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
| | - Mohammad Reza Mohammadizadeh
- Department of ChemistryFaculty of SciencesPersian Gulf University Bushehr 75169 Iran
- Oil and Gas Research CenterPersian Gulf University Bushehr 75169 Iran
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Foadi F, Vaez Allaei SM, Palasantzas G, Mohammadizadeh MR. Roughness-dependent wetting behavior of vapor-deposited metallic thin films. Phys Rev E 2019; 100:022804. [PMID: 31574717 DOI: 10.1103/physreve.100.022804] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Indexed: 06/10/2023]
Abstract
We studied the wetting behavior of silver and copper thin films versus their kinetic roughening upon deposition at room temperature on glass substrates. Time-dependent height-height correlation functions were extracted from atomic force microscopy images, and they demonstrated a nonstationary growth front of the film roughness associated with a temporal evolution of the local surface slope. As a result, we tried to correlate the roughness statistical properties such as the root-mean-square (rms) roughness σ, the correlation length ξ, and the local surface slope (ρ≈σ/ξ) with the wetting behavior of the films' surfaces. The contact angle behavior was also studied by analyzing the variation of the energy of the system with water penetrating into the surface cavities, and the associated Laplace pressure induced by the local surface curvature. Hence, it was demonstrated that the wetting transition from a metastable Cassie-Baxter state to a Wenzel state as well as the penetration of a droplet into the surface crevices occur at the smaller local surface slopes for the higher surface energy material.
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Affiliation(s)
- Farnaz Foadi
- Supermaterials Research Laboratory (SRL), Department of Physics, University of Tehran, North Kargar Avenue, P.O. Box 14395-547, Tehran, Iran
| | - S Mehdi Vaez Allaei
- Department of Physics, University of Tehran, North Kargar Avenue, P.O. Box 14395-547, Tehran, Iran
| | - George Palasantzas
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Mohammad Reza Mohammadizadeh
- Supermaterials Research Laboratory (SRL), Department of Physics, University of Tehran, North Kargar Avenue, P.O. Box 14395-547, Tehran, Iran
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Jamaledini A, Mohammadizadeh MR. A practical one-pot three-component procedure for preparation of 3a,8a-dihydroxyindeno[1,2- d
]imidazole derivatives in aqueous ethanol. Heteroatom Chem 2018. [DOI: 10.1002/hc.21417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Azar Jamaledini
- Department of Chemistry; Faculty of Sciences; Persian Gulf University; Bushehr Iran
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Jamaledini A, Mohammadizadeh MR, Mousavi SH. Catalyst-free, efficient, and green procedure for the synthesis of 5-heterocyclic substituted 6-aminouracils. Monatsh Chem 2018. [DOI: 10.1007/s00706-018-2164-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Firoozi N, Roshan Z, Mohammadizadeh MR. Facile Chemoselective synthesis of 2-(2-(Methoxycarbonyl)-3-oxo-2,3-dihydrobenzofuran-2-yl)benzoic acids and 3 H,3’ H-Spiro[benzofuran-2,1′-isobenzofuran]-3,3′-dione derivatives. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.3963] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Neda Firoozi
- Department of Chemistry, Faculty of Sciences; Persian Gulf University; Bushehr 75169 Iran
| | - Zohreh Roshan
- Department of Chemistry, Faculty of Sciences; Persian Gulf University; Bushehr 75169 Iran
| | - Mohammad Reza Mohammadizadeh
- Department of Chemistry, Faculty of Sciences; Persian Gulf University; Bushehr 75169 Iran
- Oil and Gas Research Center; Persian Gulf University; Bushehr 75169 Iran
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Jamaleddini A, Mohammadizadeh MR. Novel and highly efficient synthesis of 3-(alkyl/benzylthio)-9b-hydroxy-1H-imidazo[5,1-a]isoindole-1,5(9bH)-dione derivatives. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2016.11.109] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Affiliation(s)
- Mohammad Abbasi
- Chemistry Department, Faculty of Sciences, Persian Gulf University
| | | | - Zahra Moradi
- Chemistry Department, Faculty of Sciences, Persian Gulf University
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Mohammadizadeh MR, Saberi D, Taghavi SZ. A new, one-pot, efficient method for the synthesis of 5-methyl-3H,3′H-spiro[furan-2,1′-isobenzofuran]-3,3′-dione derivatives in water. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.11.094] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Symmetrical disulfides were prepared by heating organic halides with Na2S2O3 in DMSO in high yields and good purities.
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Affiliation(s)
- Mohammad Abbasi
- Department of Chemistry
- Faculty of Sciences
- Persian Gulf University
- Bushehr
- Iran
| | | | - Narges Saeedi
- Department of Chemistry
- Faculty of Sciences
- Persian Gulf University
- Bushehr
- Iran
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Saberi D, Mohammadizadeh MR, Esmaeili R. Diastereoselective and Efficient Synthesis of Indeno[2″,1″: 4′,5′]furo[3′,2′: 5,6]pyrido[2,3-d]pyrimidine-2,4,6(1H,3H)-trione and 6-(2,3-Dihydro-2-hydroxy-1,3-dioxo-1H-inden-2-yl)-5,8-dihydropyrido[2,3-d]pyrimidine-2,4,7(1H,3H,6H)-trione Derivatives. Helv Chim Acta 2015. [DOI: 10.1002/hlca.201500106] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Abbasi Tarighat M, Nabavi M, Mohammadizadeh MR. Chemometrics-assisted spectrophotometric method for simultaneous determination of Pb²⁺ and Cu²⁺ ions in different foodstuffs, soil and water samples using 2-benzylspiro [isoindoline-1,5'-oxazolidine]-2',3,4'-trione using continuous wavelet transformation and partial least squares - calculation of pKf of complexes with rank annihilation factor analysis. Spectrochim Acta A Mol Biomol Spectrosc 2015; 145:54-62. [PMID: 25766479 DOI: 10.1016/j.saa.2015.02.048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 02/10/2015] [Accepted: 02/11/2015] [Indexed: 06/04/2023]
Abstract
A new multi-component analysis method based on zero-crossing point-continuous wavelet transformation (CWT) was developed for simultaneous spectrophotometric determination of Cu(2+) and Pb(2+) ions based on the complex formation with 2-benzyl espiro[isoindoline-1,5 oxasolidine]-2,3,4 trione (BSIIOT). The absorption spectra were evaluated with respect to synthetic ligand concentration, time of complexation and pH. Therefore according the absorbance values, 0.015 mmol L(-1) BSIIOT, 10 min after mixing and pH 8.0 were used as optimum values. The complex formation between BSIIOT ligand and the cations Cu(2+) and Pb(2+) by application of rank annihilation factor analysis (RAFA) were investigated. Daubechies-4 (db4), discrete Meyer (dmey), Morlet (morl) and Symlet-8 (sym8) continuous wavelet transforms for signal treatments were found to be suitable among the wavelet families. The applicability of new synthetic ligand and selected mother wavelets were used for the simultaneous determination of strongly overlapped spectra of species without using any pre-chemical treatment. Therefore, CWT signals together with zero crossing technique were directly applied to the overlapping absorption spectra of Cu(2+) and Pb(2+). The calibration graphs for estimation of Pb(2+) and Cu (2+)were obtained by measuring the CWT amplitudes at zero crossing points for Cu(2+) and Pb(2+) at the wavelet domain, respectively. The proposed method was validated by simultaneous determination of Cu(2+) and Pb(2+) ions in red beans, walnut, rice, tea and soil samples. The obtained results of samples with proposed method have been compared with those predicted by partial least squares (PLS) and flame atomic absorption spectrophotometry (FAAS).
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Affiliation(s)
- Maryam Abbasi Tarighat
- Department of Chemistry, Faculty of Sciences, Persian Gulf University, Bushehr 75169, Iran.
| | - Masoume Nabavi
- Department of Chemistry, Faculty of Sciences, Persian Gulf University, Bushehr 75169, Iran
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Mohammadizadeh MR, Basti F. A novel chemoselective synthesis of 3H-spiro[isobenzofuran-1,3′-pyrazole] derivatives by oxidative cleavage of their corresponding dihydroindeno[1,2-c]pyrazoles. J IRAN CHEM SOC 2014. [DOI: 10.1007/s13738-014-0578-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Tarighat MA, Mohammadizadeh MR, Abdi G. Simultaneous spectrophotometric determination of Cd2+, Cu2+, and Zn2+ in rice and vegetal samples with dimethyl-spiro[isobenzofurane-1,6'-pyrorolo[2,3-d]pyrimidine]-2',3,4,5'(1'H,3'H,7'H)tetraone using wavelet transformation-feed forward neural networks. J Agric Food Chem 2013; 61:6832-40. [PMID: 23772841 DOI: 10.1021/jf402186y] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A multicomponent analysis method for the simultaneous spectrophotometric determination of the Cd(2+), Cu(2+), and Zn(2+) based on complex formation with dimethyl-spiro[isobenzofurane-1,6'-pyrorolo[2,3-d]pyrimidine]-2',3,4,5'(1'H,3'H,7'H)tetraone using wavelet transformation-feed forward neural network is proposed. The analytical data showed that metal to ligand ratios in all metal complexes was 1:1. The absorption spectra were evaluated with respect to synthetic ligand concentration and pH. It was found that, at pH 6.7, the complexation reactions were completed. Spectral data were reduced using continuous wavelet transformation (CWT) and subjected to artificial neural networks. The presence of nonlinearities was confirmed by a partial response plot. The structures of the CWT-feed forward neural networks (WT-FFNN) were simplified using the corresponding wavelet coefficients of mother wavelets. Once the optimal wavelet coefficients are selected, different ANN models can be employed for the calculation of the final calibration model. The proposed methods were successfully applied to the simultaneous determination of Cd(2+), Cu(2+), and Zn(2+) in rice, dill, tomato, and lettuce samples.
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Affiliation(s)
- Maryam Abbasi Tarighat
- Department of Chemistry, Faculty of Sciences, Persian Gulf University, Bushehr 75169, Iran
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Abbasi M, Mohammadizadeh MR, Taghavi ZK. One-pot efficient synthesis of disulfides from alkyl halides and alkyl tosylates using thiourea and elemental sulfur without contamination by higher polysulfides. J IRAN CHEM SOC 2012. [DOI: 10.1007/s13738-012-0141-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hasaninejad A, Shekouhy M, Reza Mohammadizadeh M, Zare A. Zirconium nitrate: a reusable water tolerant Lewis acid catalyst for the synthesis of N-substituted pyrroles in aqueous media. RSC Adv 2012. [DOI: 10.1039/c2ra20294h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Niknam K, Mohammadizadeh MR, Mirzaee S. Silica-bonded S-sulfonic Acid as a Recyclable Catalyst for Synthesis of 2,3-Dihydroquinazolin-4(1H)-ones. CHINESE J CHEM 2011. [DOI: 10.1002/cjoc.201180261] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Abstract
Elastic and thermal properties of the TiO(2) lattice in anatase and rutile phases were studied in the framework of density functional perturbation theory within the local density approximation (LDA) and generalized-gradient approximation (GGA). The full elastic constant tensors of the polymorphs were calculated by linear fits to the acoustic branches of the phonon band structure near the center of the first Brillouin zone in symmetry directions of the crystals. It was observed that the elastic constants within the GGA are in better agreement with experiment. In addition, the Born effective charges, dielectric tensor, heat capacity, mean sound velocity and Debye temperature were calculated. The heat capacity at room temperature and the Debye temperature within the LDA are in better agreement with the experimental results. Therefore, using the phonon band structure and the density of states, one can obtain the important mechanical and thermal properties of materials.
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Affiliation(s)
- E Shojaee
- Superconductivity Research Laboratory (SRL), Department of Physics, University of Tehran, Tehran, Iran
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Hasaninejad A, Zare A, Mohammadizadeh MR, Shekouhy M. Oxalic acid as an efficient, cheap, and reusable catalyst for the preparation of quinoxalines via condensation of 1,2-diamines with α-diketones at room temperature. ARKIVOC 2008. [DOI: 10.3998/ark.5550190.0009.d04] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Azizian J, Teimouri F, Mohammadizadeh MR. Ammonium chloride catalyzed one-pot synthesis of diindolylmethanes under solvent-free conditions. CATAL COMMUN 2007. [DOI: 10.1016/j.catcom.2006.06.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Abstract
A new one-pot four component procedure for synthesis of densely functionalized pyrroles using commercially available ninhydrin with phosphorane intermediates produced in the reaction between triphenylphosphine, ammonium thiocyanate (or ammonium acetate) and various dialkyl acetylenedicarboxylates was developed.
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Affiliation(s)
- Javad Azizian
- Department of Chemistry, Faculty of Science, Shahid Beheshti University, Tehran, Iran.
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