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Article
Synthesis and Modified of Poly(Vinyl chloride) Contains Triazole Moieties and Studying the Optical Properties of New Polymers

Author: Ahmed Ahmed
Journal: Al-Nahrain Journal of Science مجلة النهرين للعلوم ISSN: (print)26635453,(online)26635461 Year: 2015 Volume: 18 Issue: 1 Pages: 66-73
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

New modified poly(vinyl chloride) was prepared by reacting of PVC with heterocyclic compounds that have thiole group (SH) in tetrahydrofuran as solvent. Heterocyclic compounds were characterized by FTIR,1H NMR spectroscopy and CHN analysis, while the new polymers have been characterized by FTIR spectrophotometers; the optical properties of synthesized new polymers were studied.

تم تحضير بوليميرات جديدة محوره لبوليمير كلوريد الفاينيل من مفاعلة بوليمير كلوريد الفاينيل مع مركبات حلقية غير متجانسة تحتوي على مجموعة الثايول بأستخدام رباعي هيدرو فيوران كمذيب. تم تشخيص المركبات الحلقية غير المتجانسة بواسطة مطيافية الاشعة تحت الحمراء والرنين النووي المغناطيسي للهيدروجين والتحليل الذري للعناصر بينما تم تشخيص البوليميرات المحورة بواسطة مطيافية الاشعة فوق البنفسجية. وكذلك تم دراسة الخواص البصرية للبوليميرات الجديدة.


Article
SYNTHESIS, CHARACTERIZATION AND ANTIMICROBIAL ACTIVITYOF SOME METAL IONSWITH 2-THIOACETIC-5-PHENYL-1,3,4-OXADIAZOLE

Authors: Ahmed Ahmed --- Hadeel Adel --- Hanan Ibraheem
Journal: Al-Nahrain Journal of Science مجلة النهرين للعلوم ISSN: (print)26635453,(online)26635461 Year: 2010 Volume: 13 Issue: 1 Pages: 43-47
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

New metal complexes of the ligand 2-thioacetic-5-phenyl-1,3,4-oxadiazole with the metal ions Ni(II), Cu(II), Zn(II), Cd(II) and Sn(II) were prepared in alcoholic medium. The prepared complexes were characterized by FTIR Spectroscopy, electronic spectroscopy, mass spectroscopy 1H NMR, 13C NMR, magnetic susceptibility and conductivity measurements. From the spectral measurements, monomer structures for the complexes were proposed. Square planar geometry was proposed for the copper complex. The other complexes were proposed to be tetrahedral. Preliminary in vitro tests for antimicrobial activity show that all prepared compounds display good activity to Staphylococcus aureus, Escherishia coli, Pseudononas aeroginosa and Cndida albicans.


Article
Synthesis and Characterization on some Metal Ions of 2-(6-Methoxynaphthalen-2-Yl)Propanoate Complexes

Authors: Ahmed Ahmed --- Jawad Shneine --- Emad Yousif --- Husam Salman
Journal: Al-Nahrain Journal of Science مجلة النهرين للعلوم ISSN: (print)26635453,(online)26635461 Year: 2013 Volume: 16 Issue: 2 Pages: 46-50
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

A total of five new metal complexes derivatives of 2-(6-methoxynaphthalen-2-yl) propanoate, HL with the metal ions (Cd(II), Zn(II), Sn(II), Ni(II) and Cu(II)) have been successfully prepared in alcoholic medium. The complexes were characterized quantitatively and qualitatively by using micro elemental analysis, FTIR spectroscopy, UV-Vis spectroscopy, magnetic susceptibility and conductivity measurements. From the spectral measurements, monomer structures for the complexes were proposed, square planar geometry was proposed for the copper complex. The other complexes were proposed to be tetrahedral.

تم تحضير معقدات جديدة لليكاند 2-(6-methoxynaphthalen-2-yl) propanoate مع الايونات الفلزية التالية: الكروم والحديد والكوبلت والنحاس والنيكل وفي وسط كحولي مائي. شخصت المعقدات المحضرة بتقنية الاطياف تحت الحمراء المعززة بتحويلات فورير (FTIR) والامتصاصات الإليكترونية والتوصيلية الكهربائية والحساسية المغناطيسية. على اساس ذلك تم اقتراح هندسة الوحدة الأساسية للمعقدات .


Article
Antibacterial Study of Some Oxazepine Derivatives

Authors: Ahmed Ahmed --- Sarah Mahdi --- Anwar Hussein --- Ayad Hamed --- et al.
Journal: Al-Nahrain Journal of Science مجلة النهرين للعلوم ISSN: (print)26635453,(online)26635461 Year: 2015 Volume: 18 Issue: 4 Pages: 22-26
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

Compounds containing 1,3-oxazepine and 1,3,4-oxadiazole (5)-(8) were synthesized by microwave assisted organic synthesis method through the condensation reaction of compounds (1 to 4) with phthalic anhydride respectively. The structure of the synthesized compounds were characterized by spectroscopic methods (1H NMR, FTIR). The synthesized compounds were screened for their antibacterial activity disc diffusion method.

تم مركبات عضوية تحتوي على 3,1 - اوكسازبين و 1, 3, 4 - اوكساديازول (5)-(8) تم تحضيرها بواسطة طريقة التخليق العضوي باستخدام تقنية المايكرويف من خلال تفاعل التكثيف للمركبات (1) و(2) و(3) و(4) مع انهيدريد الفثالك بالتتابع. تم تشخيص تراكيب المركبات المحضرة بواسطة تقنيتي (طيف الاشعة تحت الحمراء و طيف الرنين النووي المغناطيسي للبروتون). تم فحص الفعالية المضادة للجراثيم باستخدام طريقة الانتشار بواسطة الاقراص.


Article
Pharmaceutical Compounds as Photostabilizers

Authors: Esraa Ismael Al-khateb --- Ahmed Ahmed --- Khalaf F Alsamarrai
Journal: Al-Nahrain Journal of Science مجلة النهرين للعلوم ISSN: (print)26635453,(online)26635461 Year: 2016 Volume: 19 Issue: 3 Pages: 34-38
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

In this paper, some pharmaceutical compounds were used and their impact on the photostability of polymer poly (vinyl chloride) (PVC) was study. The PVC films containing a variant concentration of compounds 0.25, 0.5, 1% by weight were produced by casting method from tetrahydrofuran (THF) solvent. The photostabilization activities of these compounds were determined by calculating the photodegradation rate constant for photostabilizer (kd). The stabilizing efficiency of pharmaceutical compounds is attributed to the replacement of the labile chlorine atoms on the PVC chains by a relatively more stable moiety of the pharmaceutical stabilizer. The Photostabilization activity of these compounds is determined by weight loss method with irradiation time.

في هذا البحث, استخدمت بعض المركبات الدوائية ودراسة تأثيرها على الاستقرارية الضوئية لمتعدد كلوريد الفينيل. تم انتاج الرقائق البلاستيكية التي تحتوي على تراكيز مختلفة 0.25% و %0.5 و 1% وزناً من المركبات بطريقة الصب من مذيب رباعي هيدرو فيوران. وحددت فعالية الاستقرارية الضوئية للمركبات عن طريق حساب ثابت سرعة التحلل الضوئي للمثبت الضوئي. سبب كفاءة التثبيت بالمركبات الدوائية هو استبدال ذرات الكلور في سلاسل متعدد كلوريد الفينيل بمجموعة اكثر استقرارا نسبة للمثبت المستخدم. وتم تحديد فعالية التثبيت الضوئي لهذه المركبات بطريقة فقدان الوزن مع وقت الشعيع.


Article
Synthesis and Characterization of New Heterocyclic Schiff's Bases from Methyl 4-Hydroxybenzoate

Authors: Saja S. Abbood --- Jawad K. Shneine --- Ahmed Ahmed
Journal: Al-Nahrain Journal of Science مجلة النهرين للعلوم ISSN: (print)26635453,(online)26635461 Year: 2016 Volume: 19 Issue: 3 Pages: 28-33
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

New Schiff's bases with 1,2,4-triazole ring (3a-j) have been synthesized from 4-(4'-amino-5-mercapto-4H-1, 2, 4-triazol-3-yl) phenol (2) which is obtained from 4-hydroxybenzohydrazide (1) by a cyclization reaction. Infrared spectroscopy and 1H NMR spectroscopy were used to characterize the structure of synthesized compounds. All the final products are indicated as keto-enol and thione-thiol tautomers.

تم تخليق قواعد شف جديدة تحوي في تركيبها حلقة 1,2,4- ترايازول الخماسية (3a-j) من المركب4,4 -امينو-5- مركابتو4H- 1,2,4-- ترايازول 3-- ايل (2) والذي بدوره حضر من تفاعل الحولقة لمركب 4- هيدروكسي حامض البنزويك هايدرازايد (1). تم تشخيص المركبات بواسطة طيف الاشعة تحت الحمراء وطيف الرنين النووي المغناطيسي للبروتون.


Article
Synthesis, Characterization and Theoretical Study of 1,2(2,2-dihydroxy benzelidenamine) Phenyl Complexes

Authors: Muhammad Rahimi Yusop --- Ahmed Ahmed --- Dina A. Najeeb
Journal: Al-Nahrain Journal of Science مجلة النهرين للعلوم ISSN: (print)26635453,(online)26635461 Year: 2017 Volume: 20 Issue: 3 Pages: 12-17
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

New schiff base and its metal complexes of Co(II), Ni(II), Fe(II) and Cu(II) has been synthesized from O-phenylenediamine and O-hydroxyl benzaldehyde. The ligand and its complexes were described the distinctive nature of element by elemental analysis (C,H,N), FTIR, UV-Vis, and magnetic susceptibility. Hyperchem-7 software was used in this project for a theoretical treatment of the synthesized complexes under gas phase condition. PM3 method was used to calculate: heat of formation (ΔHfە), binding energy (ΔEb) and total energy (ΔET) for both ligand and its complexes at 298 K. Additionally, the electrostatic potential of the free ligand (L) was calculated to see the active sites of the product complexes. According to the results of this research, the produced complexes form [ML] type composition where L ligand=1,2(2,2-dihydroxy benzeliden amine). Phenyl and M=Co, Ni, Fe and Cu.


Article
Prophetic guidance in technical Study and analysis
الهدي النبوي في التكنية دراسة وتحليل

Author: Dr. Ahmed Ahmed Sharmait د.حميد احمد شرميط
Journal: Journal of The Iraqi University مجلة الجامعة العراقية ISSN: 18134521 Year: 2017 Issue: 39-2 Pages: 226-235
Publisher: Iraqi University الجامعة العراقية

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Abstract

Praise be to Allaah, who is in accordance with the service of the Prophetic Sunnah, and it is preferable for us to fulfill some of its lofty demands. I bear witness that there is no god but Allah alone. No partner has a testimony to the path that is best. I bear witness that Muhammad is His slave and His Messenger. .After that: the best speech is the word of Allah, and the best guidance of the guidance of Muhammad, the Messenger of God, and that the farmer quote from the guidance of the Prophet, and Ddrrha and governance, it was a gift and still a certain lessons is inexhaustible, the Muslim is guided by his religion and religion, And the reminder of these qualities, which should be contracted by Muslims. It is the prophetic guidance of the Prophet, the technocracy of the people of the beloved Balkani, which popularizes love among people, especially if it is issued by those who are in the position of responsibility, so how the leaders of the nation? This research is devoted to the study of this aspect under the title (guidance of the Prophet in technical) The Prophet (peace and blessings of Allaah be upon him) did not intend to search here to address those who were known or known for his kaateen, such as Abu Bakr or Abu Dharr, or the mother of Hani, but rather from the Prophet (peace be upon him). And most of the ahaadeeth have many benefits, limited to what has to do with the limited size of the research. I have reported on the ahaadeeth and the severe effects of weakness. The hadiths are documented in the mention of the part, the page and the number of the hadeeth, although the six books were mentioned in the book and the chapter. The research included three topics: The first topic: Definition of the name and its literature. The second topic: The Prophet's guidance in the technique of men. The third topic: The Prophet's guidance in the technique of women and children. And then the conclusion of the research, which summarized the most important results, and then the index of sources and references. And the God of the intent behind

لحمد للّه الّذي وفقنا لخدمة السّنّة النّبويّة، وتفضّل علينا بنيل بعض مطالبها العليّة، وأشهد أن لا إله إلاَّ اللّه وحده لا شريك له شهادة تهدي إلى الطّريق الأقوم، وأشهد أنّ محمّدا عبده ورسوله المخصوص بجوامع الكلم، وأصلّي عليه وعلى آله وأصحابه وعلى الأنبياء والمرسلين وأصحابهم أجمعين.أما بعد: فإنّ خير الكلام كلام الله تعالى، وخير الهدي هدي محمد رسول الله ، وأنّ من الفلاح الاقتباس من هديّ النبوة، ودررها وحكمها، فقد كان هذا الهدي وما زال معيناً من الدروس لا ينضب، يتأسى به المسلم في دينه ودنياه، ومن ذلك التأسي بأخلاقه الشريفة، وأن التذكير بهذه الخصال، مما ينبغي أن يتعاهده المسلمون. ومن الهدي النبوي الشريف تكنية الناس بالكنى المحببة التي تشيع المحبة بين الناس، ولاسيما إن صدرت ممن هو في موقع المسؤولية، فكيف بقادة الأمة؟وهذا البحث مكرس لدراسة هذا الجانب وتحت عنوان (الهدي النبوي في التكنية)، تناولت فيه الأحاديث الشريفة التي ورد فيها تكنية الرسول  لأصحابه، وليس المقصود بالبحث هنا مخاطبة من اشتهر أو عرف بكنيته، مثل أبي بكر أو أبي ذر، أو أم هاني  بل من كنّاه النبي  للتحبب. وأغلب الأحاديث المنيفة لها فوائد كثيرة، اقتصرت على ما له علاقة بالكنى لمحدودية حجم البحث. وقد أعرضت عن الأحاديث والآثار الشديدة الضعف. وقد وثقت الأحاديث بذكر الجزء والصفحة ورقم الحديث، وإن كان من الكتب الستة زدت عليها بذكر الكتاب والباب. وقد اشتمل هذا البحث على ثلاثة مباحث:المبحث الأول: تعريف الكنية وآدابها.المبحث الثاني: الهدي النبوي في تكنية الرجال.المبحث الثالث: الهدي النبوي في تكنية النساء والأطفال. ثم خاتمة البحث التي لخصت فيها أهم النتائج، ثم فهرست المصادر والمراجع. والله من وراء القصد

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Article
Correction to: Synthesis, Characterization and Theoretical Study of 1, 2 (2, 2-dihydroxy benzelidenamine) Phenyl Complexes

Authors: Muhammad Rahimi Yusop --- Ahmed Ahmed --- Dina A. Najeeb
Journal: Al-Nahrain Journal of Science مجلة النهرين للعلوم ISSN: (print)26635453,(online)26635461 Year: 2019 Volume: 22 Issue: 2 Pages: 88-88
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

No Abstract.

Keywords

None


Article
Controlling the Photo-Degradation Rate Constant of PS Containing Nickel(II) Complex

Authors: Zainab Hussain --- Raghda Alsayed --- Atheel Alwash --- Ahmed Ahmed --- et al.
Journal: Al-Nahrain Journal of Science مجلة النهرين للعلوم ISSN: (print)26635453,(online)26635461 Year: 2019 Volume: 22 Issue: 3 Pages: 8-17
Publisher: Al-Nahrain University جامعة النهرين

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Abstract

The complex of Ni(II) metal with 4-amino-5-(pyridyl)-4H-1,2,4-triazole-3-thiol was used as a polystyrene (PS) films photostabilizer. The PS films comprising concentrating of complex 0.5% ww were outputted by casting method from chloroform solvent. The photostabilization activities of PS films compounds with dissimilar thickness were identified by computing the photodegradation rate constant (kd) for blank and modified polystyrene. From the practical consequences obtained, a mechanism was proposed count on the installation of the complex. The PS films were irradiated utilizing a 365 nm wavelength light source with intensity 6.02 10-9 Ein dm-3 s-1 at room temperature.

Keywords

Ni --- II complex --- PS --- Photochemistry --- photodegradation.

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