Zanjan, Iran

The Institute for Advanced Studies in Basic science is an advanced research center and graduate-level degree-granting institution in Zanjan, Iran. It was founded in 1991 by Prof. Yousef Sobouti, who was the director of the institute until 2010. After that Dr.Rasoul Khodabakhsh was the director till February 2014, and Dr. HamidReza Mohammadi Khalesifard has filled the position since then.IASBS is considered to be one of the most productive research centers of the country. It offers advanced degrees in Mathematics, Physics, Geophysics, Biophysics and Chemistry. As of 2008, the mathematics department offers master of science degrees in Computer Science with concentration on Artificial Intelligence and Graph & Algorithms. The university also runs two undergraduate programs in Information Technology, one of which is a joint program with Heriot-Watt University of the United Kingdom. The latter, lectured and examined in English language, involves passing modules in both universities at the same time and each student is officially registered both at IASBS and Heriot-Watt University . The unique collaboration of the two universities has resulted in an advanced Information Technology program and many of its alumni have joined highly ranked institutions in United Kingdom, Canada and United States.The library of the university began its work in 1993 as a relatively small part in physics department. It was then substantially expanded by moving to a brand new building about 16 years later. The new library was opened in 2007 and named Torkaman Library after its donor. Currently, the library keeps 20,208 books, 6,552 of which are in Persian, and the other 13,659 are in English and other languages.In May 2002, Zanjan ICT incubator established by Dr. Jalil Khavandkar in the IASBS for development of technology and business. He followed this by establishing Zanjan Science and Technology Park in June 2009. These two foundations are of the most successful techno-centers in Iran. Wikipedia.


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Najafpour M.M.,Institute for Advanced Studies in Basic Sciences
Chemical Communications | Year: 2011

For the first time, a self-assembled layered hybrid [Ru(bpy) 3] 2+/manganese(iii,iv) as a water oxidizing system is reported. © 2011 The Royal Society of Chemistry.


Rasouli S.,Institute for Advanced Studies in Basic Sciences
Optics Letters | Year: 2010

An instrument has been built for the study of the atmospheric turbulence by measuring the fluctuation of the angle of arrival across a telescope aperture using moiré deflectometry. A slightly divergent laser beam passes through a turbulent ground level atmosphere and enters the telescope aperture. The laser beam is recollimated behind the telescope's focal point by means of a collimator. The collimated beam passes through a moiré deflectometer. The fluctuating self-image of the first grating is formed on the second grating of the moiré deflectometer and fluctuating moiré fringes are formed. Using moiré fringe fluctuations we have calculated the fluctuations of the angle of arrival, the Fried's parameter r0, and the atmospheric refractive index structure constant. Because of the magnifications of the telescope and moiré deflectometry, the precision of the technique can potentially be 1 order of magnitude more precise than previous methods. © 2010 Optical Society of America.


Najafpour M.M.,Institute for Advanced Studies in Basic Sciences
Dalton Transactions | Year: 2011

A soluble form of colloidal manganese(iv) oxide showed efficient oxygen evolution or water oxidation in presence of oxone, H2O2, cerium(iv) ammonium nitrate and tris(2,2′-bipyridyl)ruthenium(iii). © 2011 The Royal Society of Chemistry.


Najafpour M.M.,Institute for Advanced Studies in Basic Sciences
Dalton Transactions | Year: 2011

Incorporation of calcium to mixed-valence manganese oxides improved the water oxidation activity of these manganese oxides © 2011 The Royal Society of Chemistry.


Najafpour M.M.,Institute for Advanced Studies in Basic Sciences
Journal of Photochemistry and Photobiology B: Biology | Year: 2011

The oxygen evolving complex in photosystem II which induces the oxidation of water to dioxygen in plants, algae and certain bacteria contains a cluster of one calcium and four manganese ions. It serves as a model to split water by sunlight. Reports on the mechanism and structure of photosystem II provide a more detailed architecture of the oxygen evolving complex and the surrounding amino acids. One challenge in this field is the development of artificial model compounds to study oxygen evolution reaction outside the complicated environment of the enzyme. Calcium-manganese oxides as structural and functional models for the active site of photosystem II are explained and reviewed in this paper. Because of related structures of these calcium-manganese oxides and the catalytic centers of active site of the oxygen evolving complex of photosystem II, the study may help to understand more about mechanism of oxygen evolution by the oxygen evolving complex of photosystem II. © 2011 Elsevier B.V. All rights reserved.


Karimi B.,Institute for Advanced Studies in Basic Sciences | Vafaeezadeh M.,Institute for Advanced Studies in Basic Sciences
Chemical Communications | Year: 2012

Incorporating a hydrophobic Brønsted acid ionic liquid (HBAIL) inside the nanospaces of SBA-15-Pr-SO 3H led to a hydrophobic super Brønsted acid catalyst, which showed excellent catalytic performance in direct esterification of alcohols and carboxylic acids at ambient temperature under solvent-free conditions. © The Royal Society of Chemistry 2012.


Gholinejad M.,Institute for Advanced Studies in Basic Sciences
European Journal of Organic Chemistry | Year: 2013

In this study, a protocol for the synthesis of symmetrical diaryl trithiocarbonates through the one-pot copper-catalyzed coupling reaction of sodium sulfide, carbon disulfide, and aryl compounds in DMF solution is presented. This method allows the synthesis of symmetrical diaryl trithiocarbonates without the use of highly toxic thiophosgene, and also, commercially available aryl halides were used instead of less available, toxic thiols. © 2013 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.


Gholinejad M.,Institute for Advanced Studies in Basic Sciences
Applied Organometallic Chemistry | Year: 2013

In this article, palladium nanoparticles supported on agarose were used as an efficient catalyst for Heck-Matsuda and Suzuki-Miyaura coupling reactions of structurally different aryldiazonium tetrafluoroborate substrates in aqueous media. Heck-Matsuda reactions proceeded at 40°C whereas Suzuki-Miyaura reactions were carried out at room temperature. Both reactions required low catalyst loading. The catalyst was also recycled for the model reaction for three runs. © 2012 John Wiley & Sons, Ltd.


Najafpour M.M.,Institute for Advanced Studies in Basic Sciences
Origins of Life and Evolution of Biospheres | Year: 2011

In this paper a few calcium-manganese oxides and calcium-manganese minerals are studied as catalysts for water oxidation. The natural mineral marokite is also studied as a catalyst for water oxidation for the first time. Marokite is made up of edge-sharing Mn3+ in a distorted octahedral environment and eight-coordinate Ca2+ centered polyhedral layers. The structure is similar to recent models of the oxygen evolving complex in photosystem II. Thus, the oxygen evolving complex in photosystem II does not have an unusual structure and could be synthesized hydrothermally. Also in this paper, oxygen evolution is studied with marokite (CaMn2O4), pyrolusite (MnO2) and compared with hollandite (Ba0.2Ca0.15K0.3Mn6.9Al0.2Si0.3O16), hausmannite (Mn3O4), Mn2O3. H2O, CaMn3O6. H2O, CaMn4O8. H2O, CaMn2O4. H2O and synthetic marokite (CaMn2O4). I propose that the origin of the oxygen evolving complex in photosystem II resulted from absorption of calcium and manganese ions that were precipitated together in the archean oceans by protocyanobacteria because of changing pH from ~5 to ~8-10. As reported in this paper, amorphous calcium-manganese oxides with different ratios of manganese and calcium are effective catalysts for water oxidation. The bond types and lengths of the calcium and manganese ions in the calcium-manganese oxides are directly comparable to those in the OEC. This primitive structure of these amorphous calcium-manganese compounds could be changed and modified by environmental groups (amino acids) to form the oxygen evolving complex in photosystem II. © 2010 Springer Science+Business Media B.V.


Oxygen evolution was observed upon mixing either hollandite, which has been proposed as a structural model for the biological water oxidizing complex, or hausmannite with an aqueous solution of cerium (IV) ammonium nitrate. Oxygen evolution from water during irradiationwith visible light (λ>400 nm) was also observed upon adding either hollandite or hausmannite to an aqueous solution containing tris (2,2′-bipyridyl)ruthenium(II) chloride and chloro pentaammine cobalt(III) chloride in acetate buffer. These experiments showed that hollandite is a good catalyst for oxygen evolution in presence of cerium (IV) ammonium nitrate or tris (2,2′- bipyridyl)ruthenium (III). Thus, hollandite is not only a structural but also a functional model for the biological water oxidizing complex. Supplemental materials are available for this article. Go to the publisher's online edition of Geomicrobiology Journal to view the free supplemental file. © Taylor & Francis Group, LLC.

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