Soad Mohialdin

Soad Mohialdin
Salahaddin University - Erbil | SUH · College of Education

Doctor of Philosophy in chemistry

About

46
Publications
1,394
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136
Citations
Additional affiliations
June 2015 - September 2018
SmartKem Ltd.
Position
  • senior scientest
Description
  • i was working as research scientist in developing sputter resist resin

Publications

Publications (46)
Article
Full-text available
The pipeline system in the oil and gas industry is the main tool for transportation of crude and refined petroleum. Therefore, continuous exposure of the pipeline surfaces to sources of corrosion such as impurities that contains sulfur and chromate is totally unavoidable. Employment of commercial corrosion inhibitors is compounds used in low concen...
Article
Full-text available
Polymers of Intrinsic Microporosity (PIMs) constitute another class of amorphous microporous polymers. PIMs display high SSA (specific surface area) (due to their rigid and contorted molecular structure (Fig. 1a), which prevents efficient packing. In particular, PIMs do not possess rotational freedom along the polymer backbone, which ensures that t...
Article
Full-text available
This review search aims to show the positive and negative impact of COVID-19 on the all aspects of life such as environment, education, economy, politics, social life, and social media, and most importantly global human health and health services. particularly in the most affected countries such as China, USA, Canada, Italy, Spain, Germany, UK, Bra...
Patent
Full-text available
https://www.researchgate.net/search.Search.html?origin=ac&headerSearchViewId=jM2Wt3MyvYFpbTpc0B6AHJsU&query=1.Improvements%20in%20and%20relating%20to%20organic%20semi%20conducting%20materials%20EP1579518,%20patent%20No.%20WO%202004057688%20(2004/07/08)%20application%20No.WO2003/005521%20(2003/12/18)%20Joint%20inventors:%20Janos%20Veres,%20Simon%20D...
Patent
The present invention provides an organic gate insulator (OGI) layer having a low dielectric constant (k), said organic gate insulator layer being over-coated with a cross linked organic layer (OSPL) having a relatively high permittivity (k). The present invention is also provides an electronic device comprising such an organic thin film transistor...
Patent
The present invention provides an organic gate insulator (OGI) layer having a low dielectric constant (k), said organic gate insulator layer being over-coated with a cross linked organic layer (OSPL) having a relatively high permittivity (k). The present invention is also provides an electronic device comprising such an organic thin film transistor...
Patent
The present invention provides an organic gate insulator (OGI) layer having a low dielectric constant (k), said organic gate insulator layer being over-coated with a cross linked organic layer (OSPL) having a relatively high permittivity (k). The present invention is also provides an electronic device comprising such an organic thin film transistor...
Patent
Full-text available
1. Improvements in and relating to organic semi conducting materials EP1579518, patent No. WO 2004057688 (2004/07/08) application No.WO2003/005521 (2003/12/18) Joint inventors: Janos Veres, Simon D. Ogier, Stephen w. Leeming, Paul Brookes, and Soad Mohialdin-Khaffaf
Patent
Full-text available
2. Organic Field Effect Transistor with an organic Dielectric, European Patent, EP 1459392, patent No. WO 2003052841 (2003/06/26), Application No. wo 2002-GB 5248 (2002/11/12) , Joint inventors: Janos veres, Simon Ogier, Soad Mohialdin-Khaffaf,, and Stephen W. Leeming
Article
Full-text available
4. Low-k Insulator as the choice of Dielectrics in Organic Field-Effect Transistors Janos Veres, Simon D. Ogier, Stephen w. Leeming, Domenico C. Cupertino, and Soad Mohialdin-Khaffaf. Advance Functional Materials, March 2003, 13, No. 3, pp (199-207)
Patent
Full-text available
A process of manufacturing an organic field effect device is provided comprising the steps of (a) depositing from a solution an organic semiconductor layer; and (b) depositing from a solution a layer of low permittivity insulating material forming at least a part of a gate insulator, such that the low permittivity insulating material is in contact...
Article
Full-text available
11. Application of odour sensing array technology to dynamic measurement of pig slurry odour T.H. Misselbrook, S. Mohialdin-Khaffaf, P. Hobbs. K.C. Persaud, R.G. Sneath. . J.Computers and Electronic in Agriculture,
Article
Full-text available
Application of unsupervised clustering methods to assessment of malodour in agriculture using an array of conducting polymer odour sensors Hyung Gi Byun, S. Mohialdin-Khaffaf, K.C. Persaud. J.Computers and Electronic in Agriculture, 17, (1997), pp 233-247
Article
Full-text available
7. Sensor array techniques for mimicking the mammalian olfactory system Krishna C. Persaud, Soad Mohialdin Khaffaf, John S. Payne, Anna Maria Pisanelli, Dong-Hyun-Gibyun , Sensor and Actuation B 35 (1996) 1-7
Article
Full-text available
8. N- Halogeno compounds, part 17. Precursor of NF-TEDA reagents: Quaternary salt of 1,4-diazabicyclooctane containing fluoro-anions, and their Lewis acid-Lewis base adducts with boron trifluoride, phosphorus pentafluoride and sulphur trioxide R.E. Banks, M.K. Besheesh, S.N. Mohialdin-Khaffaf, Iqbal Sherif, J. Fluorine Chemistry, 78, (1996), pp (43...
Article
Full-text available
Measurement of sensory quality using electronic sensing systems K.C. Persaud, S.M. Khaffaf, A.M. Pisanelli. Measurement + Control, Volume 29, 17-20, 1996
Article
Full-text available
14. N-Halgeno compounds, part 18, 1-Alkyl-1,4-diazoniabicclo[2,2,2]octane salts: user - friendly site-selective electrophilic fluorinating agents of N-fluoro-ammonium class R.E. Banks, M.K. Besheesh, S.N. Mohialdin-Khaffaf, and I. Sharif, J. Chem. Soc. Perkin Trans.I. 1996, pp 14. N-Halgeno compounds, part 18, 1-Alkyl-1,4-diazoniabicclo[2,2,2]octan...
Article
Full-text available
15. Assessment of conducting polymer odour sensors for agricultural malodour measurements K.C. Persaud, S.N. Mohialdin-Khaffaf, R.G. Sneath, P.J. Hobbs. Chem. Senses. 1996, 21, pp 495-505
Conference Paper
Full-text available
9. Application of Conducting polymer odour sensing Array to Agricultural Malodour Monitoring K.C. Persaud, S. Mohialdin-Khaffaf, P.J. Hobbs, T.H. Misselbrook, R.G. Sneath. Accepted to present in the First International Conference on Air pollution from Agricultural Operations on 7-9 Feb 1996, Kansas, USA
Patent
Full-text available
6. Semi conducting Organic for Polymer gas sensors. US patent 6033601, Patent No. WO 9618888 (1996/02/20), Application No. 1995-GB2818 (1995/12/04), Joint inventors; Dr Krishna Chandra Persaud and Dr Soad Mohialdin- Khaffaf. . Patent assignee AromaScan Plc.You can find full details, including the full text, on the US Patent Office web site (http://...
Article
Addition reactions of organolithium and Organocopper reagents to δ-oxygenated α,β-unsaturated carbonyls, derived from glyceraldehyde acetonide, have been studied. In most cases there is a strong preference for conjugate addition of the organometallic reagent. Organocopper reagents react with anti stereoselectively, whereas most organolithium reagen...
Article
Full-text available
Highly Selective Stereo chemically Controlled Five-versus six membered Acetal Ring Cyclisation J.Leonard and S.N. Mohialdin, D. Reed G. Ryan and M.F. Jones, J. Chem. Soc., Chem. Comm., 1993, pp 23-25.
Article
Cyclisations of 3-substituted-4,5-dihydroxy ketones, under acidic conditions, occur with high selectivity to give either tetrahydropyran or tetrahydrofuran acetals, the ring size being dependent on the relative stereochemistry between the substituents at C-3 and C-4.
Article
Organolithium reagents react in an unusually selective conjugate manner with γ,δ-unsaturated β-oxo esters derived from glyceraldehyde acetonide. Thus, ester 6a gave ethyl 6,7-isopropylidenedioxy-5-(1-methylethenyl)-3-oxoheptanoate (5a) in 82% yield.
Article
Full-text available
Selective Conjugate addition of organolithium reagents to gamma, delta- unsaturated beta-oxo esters derived from Glyceraldehyde acetonide J. Leonard, D. Reed, and S.N. Mohialdin-Khaffaf, Synlett.,1992, 9, 741-2
Article
Full-text available
Synthesis, Characterisation and applications of new Electrophilic Fluorinating agents of the N-F class R.E. Banks, S.N. Mohialdin-Khaffaf , M.K. Besheesh, and I. Sharif, Journal of Fluorine Chemistry, 1991, 54, 207
Article
Full-text available
Fluorocarbon derivatives of Nitrogen. Part 199, Synthesis and mass spectroscopic analysis of some pyridinium(tetrafluoro-4-pyridyl)methylides R.E. Banks, W.T. Flowers and S.N. Mohaldin-Khaffaf, Journal of Fluorine Chemistry, 1991, 53, 127-142
Article
Full-text available
Fluorocarbon derivatives of Nitrogen. Part 18, Synthesis of fluorinated Indolizines through reactions of pyridinium-ethoxycarbonlmethylide and pyridiniumphenacylide with perfluoropropene, perfluorobut-2-yne and 3,3,3-Trifluorpropyne R.E. Banks, and S.N. Mohialdin-Khaffaf, Journal of Fluorine Chemistry, 1991, 51, 407-418 1991
Article
Oxidative cleavage of the mannitol diacetonide (I) with lead tetraacetate generates the acetonide (R)-(II) of (R)-glyceraldehyde.
Article
Practical, high yielding procedures are described whereby useful chiral enones and enoates can be prepared from either (R)- or (S)-glyceraldekyde acetonide. The labile aldehydes, formed from their precursors by lead tetraacetate cleavage, we reacted with stabilized Wittig reagents in situ.
Article
Full-text available
23. Ethyl 2,3- bis(trifluoromethyl)-2,3-dihydroindolizine-1-carboxylate R.E. Banks, R.G. Pritchard and S.N. Mohialdin, Acta Cryst., 1989, C45, 4277
Article
Full-text available
Dimethyl 3-(trifluoromethyl)indolizine-1,2-dicarboxylate (4), 1,2,3-tris(trifluoromethyl)indolizine (5), and ethyl -2,3-bis(trifluoromethyl)-2,3-dihydroindolizine-1-carboxylate (7) have been obtained via treatment of N-(2,2,2-trifluoroethyl)pyridinium triflate (2) with a base (B) and dimethyl acetylenedicarboxylate [→ 4 (B = Et3N)] or perfluorobut-...
Article
The methylide (II), formed by treatment of pyridinium triflate (I) with bases, is trapped with the acetylenes (III) to produce the dihydroindolizines (IV) which are partly dehydrogenated to form the indolizines (V).
Article
The indolizine derivatives (III) and the 1-azaindolizine (V) are synthesized by coupling the trifluoroacetylmethylide (I) with the unsaturated compounds (II) or the nitrile (IV).
Article
Some new fluoroindolizines have been synthesised via 1,3-cycloaddition reactions between pyridinium (trifluoroacetyl)methylide (I) and fluorinated dipolarophiles [CF3CN→(II); CF3CCCF3→(III) (mainly) + (IV) and (V); CF3CCH→(VI); CF3CFCF2→ (VII)] and dimethyl acetylenedicarboxylate [→(VIII)]. Treatment of (III) with base converted it to (IX).

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