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Register a new userSynthesis inorganic complexes of new pseudohalogen of type Acetyldicyanomethanide
اصطناع معقدات لا عضوية لهالوجينات كاذبة جديدة للنموذج استيل دي سيانو ميتانيد
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هيفاء الحسين( باحث )
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تم في هذا البحث تحضير معقدات أمينية لاستيل دي سيانو ميتانئيد مع معادن انتقالية-3d ثنائية التكافؤ. أوضحت المعطيات الطيفية للمعقدات المحضرة بالأشعة ما تحت الحمراء و الأشعة فوق البنفسجية بأن المرتبطة المحضرة تسلك سلوك مرتبطة أحادية السن نتساند من خلال أكسجين الكربونيل أو عن طريق الأزوت السياني في المعقدات رباعية البيريدين بالمقابل يمكن للمرتبطة استيل دي سيان ميتانيد أن تسلك سلوك مرتبطة جسرية ثمانية الوجوه بوليميرية أو ثمانية الوجوه مشوهة بالمعقدات ثنائية البيريدين تكون فيها ذرة الاكسجين الكربونيلي و الازوت السياني هي الذرات المانحة .
Aseries of mixed acetyldicyanomethanide amine complexes of some bivalent 3d-metals.Infrared spectroscopic IR and UV investigations are indicating that the ambident acetyldicyanomethanide ligand shows an unusual variability of the preferred donor atom . O-or N-coordination of the monodentate anionic ligand in the tetra –pyridine complexes as well as a bridging function of the acetyldicyanomethanide ligand in the polymeric octahedral or distorted octahedral di-pyridine complexes preferrably with .
References used
John, A.1999-.Dean: Langes Handbook of Chemistry. Auflage Mc Graw-Hill,Inorg.15
Hering , C.2013 – on the Synthesis and Reactivity of Hyhlr labile
J Lary , D.2004 – Atoms phesic pseudohalogen chemistry
kohler , H. Neef , L. 2009 koord.khim moskou.139
Nakameto , K. 2011 – IR and Raman Spectra of Inorg.and coord.compounds. new york
rate research
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A new ligand has been synthesized : 3-(2,6-
diisopropylphenylimino) Butan – 2 – one Oxime , and then
this ligand has been reacted with bivalence metal chloride
MCl2.
Separation with solvent extraction of Cu(II), Hg(II), and Cr(III) from
aqueous solution using the ligend (HL) as a new extractant has been studied.
The new acyclic Schiff Base (HL) was synthesized by reaction of 5-bromosalicylaldehyde
with 2-(2-Am
inoethyl)pyridine. The structure of the new
compound (HL) was confirmed by using FT-IR spectra, 1H-NMR and 13CNMR
spectra and mass spectra (MS). The effect of chloroform and
dichloromethan as organic solvents in the metal extractions was investigated at
20oC by using UV-visible Spectrometry. The influence of pH, ligand
concentration, shaking time and ratio of aqueous-to-organic phases on
extraction yield was tested at 20oC. The extractability of the tested metal ions
were evaluated.
A new acyclic Schiff Base(II), containing nitrogen-oxygen donor atoms was
synthesized by reaction of 1,2-Bis (5-bromo-2-formyl-phenoxy) ethane with 2-
(2-Aminoethyl)pyridine and characterized. The liquid-liquid extraction of
transition metals such
as Cu+2, Cr+3 and Uranyl-picrate (UO2)+2 from aqueous
phase to the organic phase was carried out using the novel ligand. The effect of
chloroform and nitrobenzene as organic solvents on the metal extractions was
investigated at 20oC by using Atomic Absorption and UV-visible
Spectrophotometry. The influence of pH, ligand concentration, ionic strength,
shaking time and ratio of aqueous-to-organic phases on extraction yield was
tested at 20oC. The extractability of the tested metal ions were valuated.
Aseries of Schiff base and their derivative (fluorene) have been synthesized primary
amines was condensed with 2-acetyl fluorene in DMF (dimethyl formamide) in the
presence of conc. HCl acid as catalyst to yield the Schiff base (1). The Schiff base
(2,3)
and (4) were prepared from the reaction of Schiff base (1) with 2-hydroxy-5-methyl-1,3-
benzenedicarboxaldehyde and 2,5-dihydroxy benzaldehyde respectively. and The Schiff’s
base (4) was treated with monochloroacetyl choride to give 1- substituted-4(2-fluorenyl)-3-
chloro Azolidine-2-on (5).
The following imines: 1.8.13.20-tetraaza-13.3.6.18-diphenyl cyclotetracosan-
1.8.13.19- tetraene and butyradamantine, N.N’-di (admantyl) terephthimine
and 1.5.14.18-tetraaza-2.4.15.17-tetramethylcyclotetracosan-1.8.13.19- tetraene
based on dicarbonyl and amines were synthesized by reaction of dicarbonyl
compounds and different amines. The imines have been characterized by EA
(elemental analyses), IR, 1H- NMR and 13C-NMR.
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