Nasreen R. Jber
@nahrainuniv.edu.iq
College of Science, Chemistry Department
Al-Nahrain University
Professor, Ph.D. in Chemistry Science
Associate Dean for Scientific Affairs/ College of Science/ Al-Nahrain University
EDUCATION
Professor, Ph.D. in Chemistry Science
RESEARCH INTERESTS
Organic Chemistry, liquid crystal synthesis
27
Scopus Publications
207
Scholar Citations
9
Scholar h-index
7
Scholar i10-index
Scopus Publications
- Electro Optical Properties of MBBA Liquid Crystal Doped with Carbon Nanotubes
- Synthesis, Characterization and Evaluation of the Antimicrobial Activity of a New [1,2,4] Triazolo [3,4-B] [1,3,4] Thiadiazoles Derivatives
, Karrar M. Juaila, Nasreen R. Jber, and
Al-Nahrain Journal of Science
In this study, synthesis of [D-H] via reaction of compound [C] with p-alkoxybenzaldehyde. The derivative [C] that produces from reaction the 4-amino-5-(4-aminophenyl)-4H-1,2,4-triazole-3-thiol with phosphory l chloride. The synthesized derivatives are characterized by 1HNMR and FTIR spectroscopies. The antibacterial activity of the obtained thiadiazol derivatives [D-H] was screened against Gram-positive bacteria viz.(Staphylococcus aureus, Bacillus subtilis) and Gram-negative bacteria viz. (Escherichia coli) by disc diffusion method, the results showed that compound [H]has the highest activity toward Bacillus subtilis and Staphylococcus aureus, while compounds [D]showed the highest activity toward E. coli. - Theoretical Study to Evaluate Experimental Corrosion Inhibition of Ammonium Salt Derivatives for Mild Steel in Acidic Solution
Mehdi Salih Shihab, Nasreen Raheem Jber, and Mariam Sadoon Mohsin
Pleiades Publishing Ltd - The influence of gold nanoparticles on electro-optical properties of nematic liquid crystal
Lamees A. Abdullah, Farah G. Khalid, Rawa K. Ibrahim, Aseel I. Mahmood, Alaa A. Rashad, and Nisreen R. Jber
Springer Science and Business Media LLC - The Effect of 1,3,4-Oxadiazol and 1,2,4-Triazole Compounds on Urease and Pepsin Enzymes
, Zahraa M. Abdnoor, Nasreen R.Jber, , Aliaa Saadoon Abdul-Razaq, and
Al-Nahrain Journal of Science
The helicobacter pylori affected urease and pepsin enzymes in the stomach, so the object of this study is to screen the effect of bis 1,3,4-oxadiazole and bis 1,2,4, triazole derivatives compounds on h-pylori urease enzyme in vitro. The results show that urease was inhibited by all produced compounds when the concentration increased. The most effective urease inhibitor is determined to be the compounds (A3e, A3c, A3d and B3c). The clinical study involved studying the pepsin enzyme activity level in H-pyloripatients and control, the results found that the activity of pepsin elevated in h-pylori patients as compared with control. The prepared compounds were screened on pepsin enzyme in vitro and showed that all the prepared compounds decreased the pepsin activity as the concentration increased. The nitrogen heterocyclic compounds. This study concludes that nitrogen-containing heterocyclic compounds have an important future in the treatment of Helicobacter pylori disease. - Synthesis, Characterization, and Investigation of Mesogenic Properties of Bis(2-oxo-2H-Chromen-6-yl)Terephthalate and Bis(2-Oxo-2H-Chromen-7-yl)Terephthalate
International Society of Communication and Development Between Universities (ISCDBU) - Tetrazole Derivatives and Role of Tetrazole in Medicinal Chemistry: An Article Review
, Asmaa A. Jawad, Nasreen R. Jber, , Baneen S. Rasool, , Abbas K. Abbas, and
Al-Nahrain Journal of Science
The review generalizes and systematizes in this review the results of research on the synthesis and properties of tetrazole derivatives and the properties of tetrazole compounds, and synthetic routes. In medical chemistry, the tetrazole compounds play a big role in medicinal applications such as antibacterial, anticancer, and effects on the central nervous system. - Synthesis and Characterization of Rod-Bent Mesogen Containing 1,2,4-Oxadiazole Ring
Aqel M. Rasol and Nasreen R. Jber
AIP Publishing - Synthesis and Characterization of New 1,3-Oxazepine Compounds from P-Phenylenediamine as Insecticide (Aphidoidea)
Zinah Hussein Ali, Nasreen R. Jber, and Abbas Khudhair Abbas
AIP Publishing - Synthesis and Characterization of New Dendrimers Compound Derived from Melamine
Zinah H. Ali and Nasreen R. Jber
AIP Publishing - Synthesis and Mesomorphic Properties of New Mesogen Contain 1,3,4-oxadiazole Ring
Zainab Jasim and Nasreen R. Jber
AIP Publishing - Synthesis and Characterization of Rod-Bent Shape Compounds Containing Bis-Oxadiazole
, Aqeel M. Rasol, Nasreen R. Jber, and
Al-Nahrain Journal of Science
In this work, two new mesomorphic bent-rod shape compounds containing bis-oxadiazole rings are described. The relationship between the compound structure and the mesomorphic behavior as 3,3'-benzene-1,4-diylbis[5-(4-nitrophenyl)-1,2,4-oxadiazole] and 3,3'-benzene-1,4-diylbis[5-(4-chlorophenyl)-1,2,4-oxadiazole] were established using different terminal groups (i.e.,NO2, Cl). The mesomorphism was categorized using POM and DSC, while the compounds structure were characterized using FT-IR and 1HNMR. - A Review on Synthesis, Properties, of Liquid Crystal Dendrimers
, Zinah H. Aliand, Nasreen R. Jber, and
Al-Nahrain Journal of Science
This review provides brief information concerning with the dendrimer. The supramolecular organization of selected examples of liquid-crystalline dendrimers within lamellar, columnar and nematic phases is reported. It is shown that tuning of the mesomorphic structure can be achieved by an appropriate molecular design depending upon the chemical nature of the terminal mesogenic groups, dendritic core and dendrimer generation. The pseudospherical shape of a dendrimer arises from its structure, which consists of an internal region (the core) which is connected to repeating units constituting a radial branching pattern. - Nematic Mesogen with 1,3,4-Oxadiazole Unit as Stationary Phase in Gas-Liquid Chromatography
, Zainab Jasim, Nasreen R. Jber, and
Al-Nahrain Journal of Science
This paper is the first that deals with the new synthesis of nematic liquid crystal titled bis-[5-yl-phenylbenzidine-4`-butyloxyphenly-2-yl-1,3,4-oxadiazole] and secondly discusses research on materials that can be used in stationary phase by using (GLC) as a type of chromatography. The usage of bis-[5-yl-phenylbenzidine-4`-butyloxyphenly-2-yl-1,3,4-oxadiazole]nematic phase has resulted in a lot of superb separations of a lot of poly aromatic hydrocarbons. The retention time change in an unusual way with temperature, appearance a significant increase at the normal liquid transmission point; as expected, that impact is reduced with further planar compounds. FT-IR and 1HNMR were used to characterize the synthesized chemical structure, and POM and DSC were used to investigate the liquid crystalline characteristics. - Synthesis and characterization of new oxazepine compounds and estimation its biological activity
, Abbas Khudhair Abbas, Nasreen R. Jber, and
Al-Nahrain Journal of Science
This contribution, direct new azo compounds synthesis via coupling benzidine with 4-hydroxy or alkoxy benzaldehyde (A1-A7). Schiff`s bases (B1-B7) were synthesized by condensation of azo compounds (A1-A7) and 2-aminobenzothiazole. New seven compounds of oxazepines derivates (C1-C7) have synthesized via the reaction between phthalic anhydride and Schiff bases, which that previously prepared to produce seven organic compounds as heterocyclic. As well, the oxazepines synthesized have characterized via (FT-IR, and 1HNMR spectroscopy for several of them) and physical properties have recorded. Finally, oxazepine compounds have tested against bacteria two kinds as gram positive and gram negative. - Improvement photoluminescence of nematic liquid crystal doped with gold nanoparticles
Lamees A. Abdullah, Farah G. Khalid, Alaa A. Rashad, and Nasreen R. Jber
AIP Publishing
This study reported the photoluminescence (PL) of nematic liquid crystal (LC) doped with gold nanoparticles (AuNPs). Our results demonstrated PL emission intensity of MBBA LC is improved with doping AuNPs, and the improvement of PL intensity increased with elevating concentration of AuNPs. As well as, the emission peak is changed due to presence of AuNPs. It was showed PL emission peak of LC has been shifted towards longer wavelength by 78nm in presence of 0.1 AuNPs. A small amount of AuNPs can be improved the PL intensity.This study reported the photoluminescence (PL) of nematic liquid crystal (LC) doped with gold nanoparticles (AuNPs). Our results demonstrated PL emission intensity of MBBA LC is improved with doping AuNPs, and the improvement of PL intensity increased with elevating concentration of AuNPs. As well as, the emission peak is changed due to presence of AuNPs. It was showed PL emission peak of LC has been shifted towards longer wavelength by 78nm in presence of 0.1 AuNPs. A small amount of AuNPs can be improved the PL intensity. - Corrigendum to “Effects of carbon nanotubes on the physical properties of a nematic liquid crystal N-(4′-methoxybenzylidene)-4-butylaniline” [J. Mol. Struct. 1043 (2013) 28–36] (Effects of carbon nanotubes on the physical properties of a nematic liquid crystal N-(4′-methoxybenzylidene)-4-butylaniline (2013) 1043 (28–36), (S0022286013002792), (10.1016/j.molstruc.2013.03.056))
Alaa Adnan Rashad, Nasreen Raheem Jber, and Mehdi Salih Shihab
Elsevier BV - Synthesis of dendrimers liquid crystalline materials based on 1,3,5-triphenylbenzene
Linh I Awad and Nasreen R Jber
Dr. Yashwant Research Labs Pvt. Ltd.
In this study, new compounds of discotic liquid crystalline dendrimers are prepared which is derived from 1,3,5-triphenylbenzene. The synthesis of these compounds shows the effect of dendrimer unit on the mesogenic properties. The structures of prepared compounds characterized by using spectroscopic method e.g. FT-IR and 1HNMR. The liquid crystalline phases of prepared compounds was identified by using the hot-stage polarizing optical microscope (POM) and differential scanning calorimeter (DSC). - Synthesis, characterization and evaluation the biological activity for new mesogenic 1, 3-oxazepine-4, 7-dione derived from trimesic acid
- Supramolecular columnar discotic nematic liquid crystal by hydrogen bonding: Synthesis and characterization
Nasreen R. Jber, Nisreen H. Karam, and Ammar H. Al-Dujaili
Informa UK Limited
Abstract The design, synthesis, and characterization of a star shaped 2,4,6-tris-(4`-carboxyphenoxy)-1,3,5-triazine liquid crystalline with columnar discotic mesophase properties establish H-bond interactions with 3,5-dialkoxypyidine were reported. The structures of the synthesized compounds were actually determined by elementary analysis, and FT-IR, 1HNMR, 13CNMR, and mass spectroscopy. The mesomorphic properties of these mesogens were examined using differential scanning calorimetry (DSC) and optical polarizing microscopy (OPM). The synthesized molecules exhibited enantiotropic hexagonal columnar liquid crystal, which depends for the H- bond complex in a 1:3 ratio. - A New Series of Triazine-core Based Mesogenic Derivatives: Synthesis, Characterization and Mesomorphic Study
Nisreen H. Karam, Nasreen R. Jber, and Ammar H. Al-Dujaili
Informa UK Limited
Abstract The synthesis, characterization and mesomorphic properties of two new series of triazine-core based liquid crystals have been investigated. The amino triazine derivatives were characterized by elemental analysis, Fourier transforms infrared (FTIR), 1HNMR and mass spectroscopy. The liquid crystalline properties of these compounds were examined by differential scanning calorimetry (DSC) and polarizing optical microscopy (POM). DSC and POM confirmed nematic (N) and columnar mesophase textures of the materials. The formation of mesomorphic properties was found to be dependent on the number of methylene unit in alkoxy side chains.
RECENT SCHOLAR PUBLICATIONS
- Electro Optical Properties of MBBA Liquid Crystal Doped with Carbon Nanotubes
LA Abdullah, AA Rashad, RK Ibrahim, NR Jber
Iraqi Journal of Applied Physics 21 (1), 101-104 2025 - Chemistry of Triazene-Liquid Crystals: A Review
ZM Abdulhameed, NR Jber
Al-Nahrain Journal of Science 28 (1), 56-71 2025 - Optical Behavior Of A Liquid Crystal Doped With Carbon Nanotubes
LA Abdullah, HN Naser, AA Rashad, NR Jber
Journal of Optics, 1-5 2025 - Synthesis, Characterization and Evaluation of the Antimicrobial Activity of a New [1, 2, 4] Triazolo [3, 4-B][1, 3, 4] Thiadiazoles Derivatives
KM Juaila, NR Jber
Al-Nahrain Journal of Science 27 (3), 1-8 2024 - Theoretical Study to Evaluate Experimental Corrosion Inhibition of Ammonium Salt Derivatives for Mild Steel in Acidic Solution
MS Shihab, NR Jber, MS Mohsin
Protection of Metals and Physical Chemistry of Surfaces 60 (2), 320-332 2024 - The Effect of 1, 3, 4-Oxadiazol and 1, 2, 4-Triazole Compounds on Urease and Pepsin Enzymes
ZM Abdnoor, NR Jber, AS Abdul-Razaq
Al-Nahrain Journal of Science 27 (1), 42-64 2024 - The Effect of 1, 3, 4-Oxadiazol and 1, 2, 4-Triazole Compounds on Urease and Pepsin Enzymes
AS Abdul-Razaq, NR Jber, ZM Abdnoor
Al-Nahrain Journal of Science 27 (1) 2024 - Synthesis and Characterization of Rod-Bent Shape Compounds Containing Bis-Oxadiazole
AM Rasol, NR Jber
Al-Nahrain Journal of Science 26 (1), 8-14 2023 - Tetrazole derivatives and role of tetrazole in medicinal chemistry: An article review
AA Jawad, NR Jber, BS Rasool, AK Abbas
Al-Nahrain Journal of Science 26 (1), 1-7 2023 - Synthesis and mesomorphic properties of new mesogen contain 1, 3, 4-oxadiazole ring
Z Jasim, NR Jber
AIP Conference Proceedings 2457 (1) 2023 - Synthesis and characterization of rod-bent mesogen containing 1, 2, 4-oxadiazole ring
AM Rasol, NR Jber
AIP Conference Proceedings 2457 (1) 2023 - Synthesis and characterization of new 1, 3-oxazepine compounds from P-Phenylenediamine as insecticide (Aphidoidea)
ZH Ali, NR Jber, AK Abbas
AIP Conference Proceedings 2457 (1) 2023 - Synthesis and characterization of new dendrimers compoundderived from melamine
ZH Ali, NR Jber
American Institute of Physics Conference Series 2457 (1), 030012 2023 - Synthesis, Characterization, and Investigation of Mesogenic Properties of Bis (2-oxo-2H-Chromen-6-yl) Terephthalate and Bis (2-Oxo-2H-Chromen-7-yl) Terephthalate
W Abd Aya, N Jber
Journal of Medicinal and Chemical Sciences 2023 - Synthesis of heterocyclic and study activities in agriculture as anti-dubas on date palm trees via cholinesterase inhibitors
SM Hassan, SA Hassan, AK Abbas, MR Najem, NR Jber
GSC Adv. Res. Rev 16, 94-101 2023 - PYRIDYL-1, 2, 4-TRIAZOLE: DESIGN, SYNTHESIS AND CHARACTERIZATION.
AD Hammed, NR Jber, MS Shihab
Biochemical & Cellular Archives 22 (1) 2022 - Archive of SID. ir
AH Abd, N Jber
2022 - Supramolecular discotic mesophases containing melamine-core induced by hydrogen-bonding: synthesis and characterization
ZHANR Jber
Eurasian Chemical Communications 4, 419-424 2022 - A Review on Synthesis, Properties, of Liquid Crystal Dendrimers
NR Jber, ZH Ali
Al-Nahrain Journal of Science 24 (4), 15-25 2021 - Nematic Mesogen with 1, 3, 4-Oxadiazole Unit as Stationary Phase in Gas-Liquid Chromatography
Z Jasim, NR Jber
Al-Nahrain Journal of Science 24 (3), 30-37 2021
MOST CITED SCHOLAR PUBLICATIONS
- Synthesis and Spectral Study of New Azo - Azomethine Dyes and its Copper (II) Complexes Derived from Resorcinol, 4-Aminobenzoylhydrazone and 4-Amino antipyrine
RSAYAAD Nasreen R. Jber*
Journal of Al-Nahrain University 14 (2011), 50-56 2011
Citations: 32 - Effects of carbon nanotubes on the physical properties of a nematic liquid crystal N-(4′-methoxybenzylidene)-4-butylaniline
RAA Nasreen R Jber, MS Shihab
Journal of Molecular Structure 1043, 28-36 2013
Citations: 28 - Synthesis and Characterization a New 1, 3-Diazepine Compounds from New Bis 4-Amino-3-Mercpto-1, 2, 4-Triazole Derivatives
AAQ Younus, NR Jber
Al-Nahrain Journal of Science 20 (2) 2017
Citations: 23 - Synthesis and Estimation of Biological Activity of New Oxazepine Derivatives
NRJ ABBAS KHUDHAIR ABBAS
INTERNATIONAL JOURNAL OF PHARMACEUTICAL RESEARCH 12 (Supplementary Issue 2 2020
Citations: 16 - Supramolecular columnar discotic nematic liquid crystal by hydrogen bonding: Synthesis and characterization
AHAD Nasreen R. Jber, Nisreen H. Karam
Molecular Crystals and Liquid Crystals 675 (1), 29-38 2019
Citations: 13 - A New Series of Triazine-core Based Mesogenic Derivatives: Synthesis, Characterization and Mesomorphic Study
AHADT Nisreen H. Karam, Nasreen R. Jber
Molecular Crystals and Liquid Crystals 675 (1), 39-48 2019
Citations: 11 - Schiff Base liquid Crystals with Terminal Alkoxy Group Synthesis and Thermotropic Properties.
NR Jber, MM Shukur, AA Najaf
Al-Nahrain Journal of Science 17 (2), 64-72 2014
Citations: 10 - Synthesis and Characterization of New Oxazepine Compounds and Estimation its Biological Activity
AK Abbas, NR Jber
Al-Nahrain Journal of Science 23 (3), 17-23 2020
Citations: 9 - A glimpse into establishing and developing safety measures in the department of chemistry, college of science, Al-Nahrain university in 2016
E Yousif, W Al-Dahhan, A Ali, N Jber, A Rashad
Orient J Phys Sciences 2 (2) 2017
Citations: 9 - Tetrazole derivatives and role of tetrazole in medicinal chemistry: An article review
AA Jawad, NR Jber, BS Rasool, AK Abbas
Al-Nahrain Journal of Science 26 (1), 1-7 2023
Citations: 8 - Physiochemical properties of crystalline etch products for CR-39 track detector after α-particles irradiation
HA Al-Jobouri, NR Jber, AH Al-Shukrawi, MK Hamid
Adv. Appl. Sci. Res 4 (4), 501-507 2013
Citations: 8 - Improvement photoluminescence of nematic liquid crystal doped with gold nanoparticles
LA Abdullah, FG Khalid, AA Rashad, NR Jber
AIP Conference Proceedings 2190 (1) 2019
Citations: 7 - Synthesis and spectroscopic characterization of bis-swallow tailed mesogen
DM Hadi, NR Jber
IJSR 6 (1), 1909-1915 2017
Citations: 7 - Synthesis and characterization of new 1, 3-oxazepine compounds from P-Phenylenediamine as insecticide (Aphidoidea)
ZH Ali, NR Jber, AK Abbas
AIP Conference Proceedings 2457 (1) 2023
Citations: 3 - Synthesis and Characterization of New Mesomorphic Azo Compounds and Study their Photoluminesecence Properties
MS Hatem, NR Jber
Baghdad Science Journal 13 (2.2 NCC), 0333-0333 2016
Citations: 3 - Porous Silicon Morphology: Photo-Electrochemically Etched by Different Laser Wavelengths
SM Faraj, SMA Al-Baqi, NR Jber, J Fisher
Journal of Nanotechnology in Engineering and Medicine 6 (1), 011003-1- 011003-7 2015
Citations: 3 - Theoretical approach to study assembly nature of molecular modeling system of carbon nanotube and a nematic liquid crystal
AA Rashad, NR Jber, MS Shihab
Al-Nahrain Journal of Science 15 (4), 91-97 2012
Citations: 3 - Effect of carbon nanotube on physical properties of the nematic liquid crystal N-(4-methoxybenzylidene)-4-n butylaniline (MBBA)
MS Shihab, NR Jber, AA Rashad
MSc thesis in al-Nahrain university/sciences college 2012
Citations: 2 - STUDY THE PROPERTIES OF THERMOTROPIC LIQUID CRYSTALS INDUCED BY HYDROGEN BONDING BETWEEN PYRIDYL-HETEROCYCLIC DERIVATIVES AND BENZOIC ACID, 4-HEPTYLOXYBENZOIC ACID OR 4
NR Jber
Al-Nahrain Journal of Science 13 (4), 62-69 2010
Citations: 2 - SYNTHESIS OF NEW 1, 2, 3-TRIAZOL-4-YL-6-SUBSTITUTED-S-TRIAZOLO [3, 4-B]-1, 3, 4-THIADIAZOLE DERIVATIVES VIA DIAZONIUM SALTS.
SH Shawkat, NR Jber, YK Al-Bayati
Al-Nahrain Journal of Science 10 (2), 50-53 2007
Citations: 2