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COORDINATION CHEMISTRY GROUP (CCG)

 

MEMBERSHIP

1 Prof. Dr. Hadariah Bahron Head
Ph.D. (University of Surrey, UK) Faculty of Applied Sciences
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Office Telephone: 03-55442094

 

2 Dr. Yong Soon Kong Member
Ph.D. (University of South Australia) Faculty of Applied Sciences

 

3 Dr. Amalina Mohd Tajuddin Member
Ph.D. (Universiti Teknologi MARA) Faculty of Applied Sciences

 

4 Dr. Mohd Shihabuddin Ahmad Noorden Member
Ph.D. (Kyushu University, Japan) Faculty of Pharmacy

 

5 Mrs. Shadatul Hanom Rashid Member
M.Sc. (University of Manchester, UK) Faculty of Applied Sciences

 

6 Mrs. Adibatul Husna Fadzil Member (Study Leave)
M.Sc. (Universiti Kebangsaan Malaysia) Faculty of Applied Sciences
7 Mrs. Hamizah Md Rasid Member (Study Leave)
M.Sc. (Universiti Teknologi Malaysia) Faculty of Applied Sciences

 

Address:

 

Coordination Chemistry Laboratory

Faculty of Applied Sciences

EWX (Old Engineering) Block

UniversitiTeknologi MARA

40450 Shah Alam, Selangor.

 

RESEARCH WORK

 

The work by CCG members can be categorized into 4 main areas:

a) Synthesis and characterization of novel ligands and metal complexes.

b) Biological activities of the ligands and complexes.

  • Antimicrobial (antibacterial dan antifungal) activities
  • Antioxidant potential
  • DNA cleavage ability
  • Cytotoxicity on healthy cells

c) Corrosion inhibition properties of the ligands.

d) Catalytic activity of the complexes.

 

The synopsis of each area is as outlined below:

a) Novel Schiff base and hydroxamic acid ligands and their metal complexes

For academic curiosity and development of the field of fundamental research, ligands with new architecture and their various metal complexes are designed, synthesized and characterized in the laboratory.  The structural, physical and chemical data obtained from these novel compounds are useful in providing clues and guides for researchers interested to investigate the applications of these compounds in various fields.

b) Biological activity of ligands and metal complexes

Biological activity such as antibacterial, antifungal, antiviral, antioxidant, antitumour, antidiabetic and cytotoxicity can be investigated for the various compounds synthesized in as a small initial step itowards developing new drugs in combating the diseases that are compromising the quality of human life.

c) Corrosion inhibition potential of compounds containing heteroatoms and p-electron systems

Compounds that have anchoring points through lone pair of electrons and p-electrons can be designed and synthesized in an attempt to produce corrosion inbibitors for various metals such as mild steel, copper and zinc.  These compounds can be used as alternative to commercially available inorganic corrosion inhibitors which have the drawback of being toxic and harmful to human and the environment.

d) Catalytic properties of palladium and titanium Schiff base complexes

Novel homogeneous and heterogeneous catalytic system can be developed using the compounds synthesized in the laboratory to increase the efficiency, recoverability and ease of use of the catalyst for various chemical reactions such as Suzuki and Heck reactions of C-C cross coupling and oxidation reactions.  The heterogeneity is achieved by mounting the catalytic compounds on inert vehicles such as MCM-41 and carbon nanotubes (CNT).

 

 

CURRENT POST-GRADUATES

 

a) Miss Noorlaila Ramlee (PhD)

Tetradentate Schiff Bases As Ionic Scavengers In Polymeric Coatings Towards Corrosion Inhibition Of Mild Steel

b) Mrs Zailelah Zainoldin (PhD)

Synthesis And Characterization Of Schiff Bases For Corrosion Inhibition Study

c) Miss Aliyin Abdul Gani (PhD)

Benzenoid Polycyclic  Schiff Bases As Corrosion Inhibitors

d) Miss Nur Amina Zainal (PhD)

Synthesis and Bioactivity of Self-Assembly Macromolecular Coordination Complexes

e) Mr Shahrul Nizam Ahmad (PhD)

Catalytic Properties Of Palladium(II)Azomethine Complexes In C-C Bond Formation

 

 

CURRENT UNDERGRADUATES - FINAL YEAR PROJECTS

 

a) Nurul Nabila Binti Mahmad Shukri (AS202)

Synthesis And Characterization Of Cu(II), Co(II) And Ni(II) Complexes Of TetradentateAzomethines For Catalysis Of Oxidation Reaction

b) Mohammad Amirrul Rashid Bin Anuar (AS202)

Corrosion Inhibition Properties Of Schiff Bases Derived From O-Vanillin And Salicylaldehyde For Mild Steel In 1M Hydrochloric Acid

c) Latifah Robbaniyyah Binti Hassan (AS202)

Antibacterial Activity Of Ni(II), Cu(II), Co(II) Complexes Of Bidentate Schiff Bases

 

 

 

COMPLETED POST-GRADUATES

 

a) Dr. Karimah Kassim (PhD)

Synthesis and Characterization of New Macrocyclic and Acyclic Schiff Base Ligands and Metal Complexes

b) Dr. Amalina Mohd Tajuddin (PhD)

Synthesis And Characterization Of Palladium(II) And Nickel(II) Complexes Of Schiff Bases And The Potential Of The Palladium(II) Complexes As Catalysts For C-C Bond Formation

c) Mr. Ahmad Shalabi Md Sauri (MSc)

Synthesis, characterization of Schiff Base ligands and the investigation on effects of substituents towards the corrosion inhibition on copper and steel

d) Miss Fatimatuzzahraa Mohd Fadzel (MSc)

Tetradentate Schiff Bases Derived From 2,6-Diaminopyridine: Complexation And Neurotoxicity Screening

e) Mr Ahmad Fauzi Abu Bakar (MSc)

Synthesis, Charaterization And Neurotoxiciy Screening Of Schiff Base Ligands Derived From 1,8-Diaminonaphthalene And Their Cu(II), Co(II), Ni(II) and Zn(II) Complexes

f) Mrs. Siti Noriah Mohd Shotor (MSc)

Hydroxamic Acid Series And Their Metal Complexes:Synthesis, Characterization, Cytotoxicity And Neurotoxicity Study

 

 

 

COMPLETED UNDERGRADUATE FINAL YEAR PROJECTS

 

a) Shadatul Hanom Rashid

Synthesis and Characterization of Cu(II) Complex With Bidentate Schiff Bases Derived from Ethylenediamine and 4-Chlorobenzaldehyde or 4-chloroacetophenone

b) Izyan Abdul Wahab

Synthesis and Characterization of Schiff Bases and Their Copper(II) and Zinc(II) Complexes

c) Eizuan Mueizany Abd Aziz

Synthesis and Characterization of Nickel(II) and Cobalt(II) Complexes with Tetradentate Schiff Base Ligands Derived from Ethylenediamine, Salicylaldehyde, Diaminomaleonitrile and 2,4-dihydroxyacetopehenone.

d) Nor Roziani Azmi

Synthesis and Characterization of Transition Metal Complexes of Bis(bidentate) Schiff Base Ligands.

e) Nor Azimah Zubit

Complexation of Nickel(II) with Bidentate Schiff Bases: Synthesis and Spectral Characterization.

f) Musaini Musban

Synthesis and Characterization of Bidentate Schiff Base Ligands derived from 4-Methylbenzaldenyde.

g) Amirullah Hamering

Salicylaldehyde derived Schiff Bases and Their Metal Complexes: Synthesis, Characterization and Biological Activity.

h) Nur Hafina Husin

Isoniazid Schiff Bases and Their Metal Complexes: Synthesis, Characterisation and Biological Studies.

i) Suhaili Zainal Abidin

Complexation of Schiff base Ligands: Synthesis, Characterization and Antimicrobial Studies

j) Ruzy Mohammad

Complexation of Schiff base Ligands: Synthesis, Characterization and Antimicrobial Studies

k) Siti Noriah Mohd Shotor

Synthesis of Schiff Bases derived from 2,4-dihydroxyacetophenone with o-phenylenediamine and propane-1,3-diamine and Their Complexes: Application as antimicrobial agents

l) Nazeeya Tajuddin (AS225)

Corrosion inhibition of Bidentate Schiff Bases in H2SO4 solution.

m) Norhidayah Jamaluddin(AS225)

Ethylenediamine derived Schiff Bases as Corrosion Inhibitors.

n) ShazanaZawani Aziz Jaafar

Hydroxamic Acids and their Cu(II) and Zn(II) Complexes – Synthesis, Characterization and Antibacterial Activities.

o) Suhainiza Bahari

Synthesis, Characterization and Antioxidation Application of hydroxamic acids and their Co(II), Ni(II) and Cr(III) complexes.

p) Amalina Mohd Tajuddin

Vanadium Complexes of Hydroxamic Acids: Synthesis, Characterization and Cytotoxicity Investigation

q) Nurhazira Sabri

Cell Viability and Antioxidant Studies of Salicylhydroxamic Acid and its Cr(III) and Co(II) Complexes

r) Nor Haslini Wahid

Cytotoxicity and DNA Cleavage Studies of Salicylhydroxamic Acid and Its Ni(II), Cu(II) and Zn(II) Complexes

s) Azlan Shah Mustafa

Antioxidant activity of Hydroxamic Acids and Metal Complexes

t) Indra Totoh (AS225)

Investigation of Schiff Bases as Corrosion Inhibitor for Mild Steel in 1M Sulfuric Acid

u) Mohd Shahril Anoar (AS225)

Inhibitive Effect of Schiff Bases on Corrosion of Mild Steel in Hydrochloric Acid Solution

v) Illuni Hayaty Ahmad (AS225)

Synthesis, Characterization and Antioxidat Studies of Copper(II) Complex with Schiff Bases derived from 4-hydroxybenzaldehyde

w) Norhafizah Zakaria (AS225)

Synthesis, Characterization and Biological Application of Schiff Base Ligand and its Copper(II) and Iron(III) complexes derived from 2,4-dihydroxybenzaldehyde and                   1,3-diaminopropane

x) Mohd Azli Yahya (AS225)

Synthesis, Characterization and DNA Cleavage Evaluation of Schiff Base derived from N-Phenyl-1,4-Phenylenediamine

y) Mohamed Firdaus bin Mohamed Hussain(AS225)

Schiff Bases Derived from Melamine as Corrosion Inhibitors

z) Mohd Akmal bin Ahmad Tiis (AS225)

Tetradentate Schiff Bases as Corrosion Inhibitors

aa) Nurul Farhana Najib (AS202)

Corrosion Inhibition of Azomethine Compounds for Mild Steel in 1M Sulfuric Acid

bb) Nurhadilah Che Harun (AS202)

Schiff Bases as Corrosion Inhibitors for Copper in Hydrochloric Acid

cc) Masitah Mohamad Puzi (AS202)

Copper(II) Complexes of Analogous Bidentate Schiff Bases

dd) Erma Shakila Md Isa (AS202)

Non-Symmetrical Schiff Bases as Corrosion Inhibitors of Mild Steel in Acidic Solution

ee) Mohammad Ashrafulanuar Bin Mohd Masadi (AS202)

Hydrazide-Derived Schiff Base and Its Metal Complexes: Synthesis and Characterization

ff) Norsyakila Mohd Limin (AS202)

Synthesis And Characterization Of Schiff Bases Derived From Ortho-Phenylenediamine For Corrosion Inhibition Of Mild Steel In 1M Hydrochloric Acid

gg) Siti Ruqaiyah Binti Nuruddin (AS202)

Synthesis And Characterization Of Bidentate Schiff Bases Derived From Benzalamine Derivatives For Corrosion Inhibition Of Mild Steel In 1M Hydrochloric Acid

 

 

PUBLICATIONS (REFEREED JOURNALS)

 

  1. Amalina Mohd Tajuddin, Hadariah Bahron, Hamizah Mohd Zaki, Karimah Kassim and Suchada Chantrapromma (2015) Crystal structure of bis(2-{1-[(E )-(4-fluorobenzyl)imino]ethyl}phenolato-?2N,O}palladium(II), Acta Cryst. (2015). E71, 350–353 (doi:10.1107/S2056989015004405) – Scopus Indexed.
  2. Aliyin Abdul Ghani, Hadariah Bahron, Mohamad Kamal Harun and Karimah Kassim (2014) Schiff bases derived from Isatin as mild steel corrosion inhibitors in 1 M HCl, The Malaysian Journal of Analytical Sciences, Vol. 18 No. 3 (2014): 507-513, ISSN : 1394-2506 – Scopus Indexed.
  3. Amalina Mohd Tajuddin, Hadariah Bahron, Rohazila Mohammad Hanafiah, Nazlina Ibrahim, Hoong-Kun Fun and Suchada Chantrapromma (2014) Crystal structure of bis{2-[(E)-(4-fluorobenzyl)iminomethyl]phenolato-K 2N,O1}nickel(II),Acta Cryst. (2014). E70, 252–255 (doi:10.1107/S1600536814020546) – Scopus Indexed.
  4. Hadariah Bahron, Amalina Mohd Tajuddin, Wan Nazihah Wan Ibrahim, Hoong-Kun Fun and Suchada Chantrapromma (2014) Crystal structure of bis{2-[(E )-(4-methoxylbenzyl)iminomethyl]phenolato-?2N,O1}nickel(II), Acta Cryst. (2014). E70, 104–106 (doi:10.1107/S160053681401650X) – Scopus Indexed.
  5. Hadariah Bahron, Amalina Mohd Tajuddin, Wan Nazihah Wan Ibrahim, Suchada Chantrapromma and Hoong-Kun Fun (2014) Bis{2-methoxy-6-[(E)-(4-methylbenzyl)iminomethyl]phenolato}palladium(II) chloroform mono-solvate, Acta Crystallograpica Section E: Structure Reports Online, Acta Cryst. E70, m289–m290  (doi:10.1107/S1600536814015025) – Scopus Indexed.
  6. Bahron, H., Zainoldin, Z. and Kassim, K. (2013)  Electrochemical impedance study of mild steel electro-oxidized with 4-hydroxybenzalaniline against corrosion, Malaysian Journal of Analytical Sciences (MJAS) –  in publication
  7. Ali, A.M.M., Subban, R.H.Y., Bahron, H.,Yahya, M.Z.A., Kamisan, A.S. (2013) Investigation on modified natural rubber gel polymer electrolytes for lithium polymer battery, Journal of Power Sources, Journal of Power Sources 244 (2013) 636-640. 2013 Elsevier B.V. (doi: 10.1016/j.jpowsour.2013.01.002) – Scopus Indexed.
  8. Zailelah Zainoldin, Mohamad Kamal Harun, Hadariah Bahron and Karimah Kassim (2012) Passive Thin Film Coating through Electrodeposition of Salicylideneaniline, Asia-Pacific Chemical, Biological and Environmental Engineering (APCBEE) Procedia 3,104-109, 2212-6708© 2012 Published by Elsevier B.V. (doi: 10.1016/j.apcbee.2012.06.054) – Scopus Indexed.
  9. Amalina Mohd Tajuddin, Hadariah Bahron, Karimah Kassim,Wan Nazihah Wan Ibrahim and Hoong-Kun Fun (2012) Synthesis and Characterisation of Palladium(II) Schiff Base and Their Catalytic Activities for Heck Reaction, Advanced Materials Research, Vols. 554-556, pp 736-740, © (2012) Trans Tech Publications, Switzerland (doi:10.4028/www.scientific.net/AMR.554-556.736) – Scopus Indexed.
  10. Zailelah Zainoldin, Mohamad Kamal Harun, Hadariah Bahron and Karimah Kassim (2012) Electrodeposition of Salicylideneaniline and its Corrosion Behavior, Advanced Materials Research, Vols. 554-556, pp 385-389, © (2012) Trans Tech Publications, Switzerland (doi:10.4028/www.scientific.net/AMR.554-556.385) – Scopus Indexed.
  11. Aliyin Abdul Ghani, HadariahBahron, Mohamad Kamal Harun and KarimahKassim (2012) Corrosion Inhibition Study Of A Heterocyclic Schiff Base Derived From Isatin, Advanced Materials Research, Vols. 554-556, pp 425-429 © (2012) Trans Tech Publications, Switzerland (doi:10.4028/www.scientific.net/AMR.554-556.425) – Scopus Indexed.
  12. Ahmad Fauzi Abu Bakar, HadariahBahron and KarimahKassim (2012)  Synthesis, Characterization and Neurotoxicity Screening of Schiff Base Ligands and Their Complexes, Advanced Materials Research, Vols. 554-556, pp 938-943, © (2012) Trans Tech Publications, Switzerland (doi:10.4028/www.scientific.net/AMR.554-556.938) – Scopus Indexed.
  13. AmalinaMohdTajuddin, HadariahBahron, KarimahKassim, Wan Nazihah Wan Ibrahim and BohariM.Yamin (2012)Synthesis And Characterisation Of Palladium(Ii) Schiff Base Complexes And Their Catalytic Activities For Suzuki Coupling Reaction, The Malaysian Journal of Analytical Sciences, Vol. 16 No. 1 (2012): 79 – 87, ISSN : 1394-2506 – Scopus Indexed.
  14. HadariahBahron, Najihah Abu Bakar, Bohari M. Yamin and M. Sukeri M. Yusof (2012) 6,6-Dimethoxy-2,2-[(E,E’)-(2,4,6-trimethyl-1,3-phenylene)bis-(nitrilomethanylylidene)]diphenol chloroformmonosolvate, Acta Crystallographica Section E: Structure Reports Online, Acta Cryst. (2012). E68, o1176 (doi:10.1107/S1600536812011531) – Scopus Indexed.
  15. Ahmad Fauzi Abu Bakar, HadariahBahron, KarimahKassim and Mazatulikhma Mat Zain (2011) Synthesis, Characterization And Neurotoxic Effect Of Schiff Base Ligands And Their Complexes, The Malaysian Journal of Analytical Sciences, Vol. 15, No. 1, (2011): 93–100, ISSN : 1394-2506 – Scopus Indexed.
  16. HadariahBahron, AmalinaMohdTajuddin, Wan Nazihah Wan Ibrahim, MadhukarHemamalini and Hoong-Kun Fun (2011) Bis{2-[(E)-(4-fluorobenzyl)iminomethyl]-6-methoxyphenolato-k2N,O1}nickel(II), ActaCryst. (2011). E67, m1010–m1011 (doi:10.1107/S1600536811025189) – Scopus Indexed.
  17. HadariahBahron, AmalinaMohdTajuddin, Wan Nazihah Wan Ibrahim, MadhukarHemamalini and Hoong-Kun Fun (2011) Bis{2-[(E)-(4-fluorobenzyl)iminomethyl]-6-methoxyphenolato}palladium(II), ActaCryst. (2011). E67, m759–m760 (doi:10.1107/S1600536811017739) – Scopus Indexed.
  18. HadariahBahron, FatimatuzzahraaMohdFadzel, KarimahKassim,MadhukarHemamalini and Hoong-Kun Fun. (2011), 2-[(E )-(2,4-Dihydroxybenzylidene)-azaniumyl]-3-phenylpropanoate, ActaCryst. (2011). E67, o1331–o1332(doi: doi:10.1107/S1600536811016655) – Scopus Indexed.
  19. 19. AmalinaMohdTajuddin, HadariahBahron, Wan Nazihah Wan Ibrahim and Bohari M. Yamin (2010) Bis{2-[1-(benzylimino)ethyl]phenolato}palladium(II), ActaCryst. E66, m1100 (doi:10.1107/S1600536810031375) – Scopus Indexed
  20. MohdFadzel, F., Bahron, H., Kassim, K., Zain, M.M. (2010) Toxicity study of Schiff bases derived from 2,6-diaminopyridine and their novel metal complexes,  CSSR 2010 - 2010 International Conference on Science and Social Research , art. no. 5773885, pp. 757-761 ((doi: 10.1109/CSSR.2010.5773885) – Scopus Indexed.
  21. Shotor, S.N.M., Kassim, K., Bahron, H.,Tajuddin, A.M., Yusof, F.Z., Marmion, C.J., Rajab, N.F. (2010) In-Vitro Cytotoxicity Studies Of Vanadyl Complexes With Hydroxamic Acid Series, CSSR 2010 - 2010 International Conference on Science and Social Research , art. no. 5773735, pp. 1283-1286 (doi: 10.1109/CSSR.2010.5773735) – Scopus Indexed.
  22. Abu Bakar, S.N.,Bahron, H., Kassim, K. (2010) Synthesis And Characterization Of A Novel Schiff Base Derived From 2,4,6-trimethyl-m-phenylenediamine with o-Vanillin And Its Metal Complexes, CSSR 2010 - 2010 International Conference on Science and Social Research , art. no. 5773821, pp. 463-466 (doi: 10.1109/CSSR.2010.5773821) – Scopus Indexed.
  23. Noordin, N., Bahron, H., Kassim, K., Zain, M.M. (2010) Synthesis, Characterization And Neurotoxicity Of MultidentateAzomethine Series And Their Cu(II) And Ni(II) Complexes, CSSR 2010 - 2010 International Conference on Science and Social Research , art. no. 5773818, pp. 447-450 (doi: 10.1109/CSSR.2010.5773818) – Scopus Indexed.
  24. Abu Bakar, A.F., Bahron, H., Kassim, K., Zain, M.M. (2010) Synthesis, Characterization And Neurotoxicity Of Schiff Bases Derived From 1,8-Diaminonaphthalene, CSSR 2010 - 2010 International Conference on Science and Social Research, art. no. 5773736, pp. 1287-1290 (doi: 10.1109/CSSR.2010.5773736) – Scopus Indexed.
  25. Ramlee, N., Abu Bakar, S.N., Bahron, H., Harun, M.K., Kassim, K., Yahya, M.Z.A. (2010) Interaction Of Schiff Bases And Their Corresponding Amines And Aldehyde With Mild Steel Surface In 1.0 M Hydrochloric Acid Solution, CSSR 2010 - 2010 International Conference on Science and Social Research , art. no. 5773819, pp. 451-456 (doi: 10.1109/CSSR.2010.5773819) – Scopus Indexed.
  26. Yamin, B. M., Bakar, S. N. A., Kassim, K. and Bahron, H. (2009) 6,6’-Dimethoxy-2.2’-[(E,E’)-(4-chloro-m-phenylene)bis(nitrilomethylidyne)]-diphenol, ActaCrystallographica, Section E, E65, o2573 [doi:10.1107/S1600536809037386] – Scopus Indexed.
  27. Bahron, H.,Bakar, S.N.A., Kassim, K., Yeap, C.S., Fun, H.-K. (2010), (E)-2-[1-(3-Amino-4-chloro-phenyl-imino)eth-yl]-4-bromo-phenol, ActaCrystallographica Section E: Structure Reports Online 66 (4), pp. o883 (doi:10.1107/S1600536810009773) – Scopus Indexed.
  28. A.M.M. Ali, R.H.Y. Subban, H. Bahron, T. Winie, F. Latif, M.Z.A. Yahya, (2008) Grafted Natural Rubber-Based Polymer Electrolytes: ATR-FTIR and Conductivity Studies, Ionics, Volume 14, Number 5, 491-500, DOI 10.1007/s11581-007-0199-3, Springer. (Received: 4 October 2007, Revised: 7 December 2007, Accepted: 14 December 2007).– Scopus Indexed.
  29. A.S.M. Sauri, K. Kassim, H. Bahron, M.Z.A. Yahya, M.K. Harun (2009)  An Investigation on Effects Of Substituents In N,N'-Dibensylidene Ethane-1,2-Diamine Towards Corrosion Inhibition On Steel In 1M HCl,Materials Research Innovations, Volume 13, No. 3, 305-308, W.S. Maney& Son Ltd. (DOI 10.1179/143307509X440604)– Scopus Indexed.
  30. A. M. M. Ali, H. Bahron, R. H. Y. Subban, T. I. T. Kudin and M. Z. A. Yahya, (2009)  Frequency Dependent Conductivity Studies On PMMA-Licf3so3 Polymer Electrolytes,Materials Research Innovations, Volume 13, No. 3, 285-287, W.S. Maney& Son Ltd. (DOI 10.1179/143307509X440541)– Scopus Indexed.
  31. A.M.M. Ali, M.Z.A. Yahya, H. Bahron, R.H.Y. Subban, (2006) Electrochemical studies on polymer electrolytes based on poly(methylmethacrylate)-grafted natural rubber for lithium polymer battery, IONICS – International Journal of Ionics, The Science and Technology of Ionic Motion, Volume 12, Numbers 4-5, 303-307, Springer Berlin/ Heidelberg (doi: 10.1007/s11581-006-0052-0)– Scopus Indexed.
  32. KarimahKassim, HadariahBahrom and Bohari M. Yamin (2006) (E-E)-N,N’-Bis(4-tolylmethylidene)-ethylenediamine, ActaCrystallographica, Section E, E62, o3521-o3522 (doi:10.1107/s160053680602798X)– Scopus Indexed.
  33. HadariahBahron, KarimahKassim, SharifahRohaiza Syed Omar, ShadatulHanum Rashid, Hoong-Kun Fun, SuchadaChantrapromma (2007) (E,E)-N,N'-Bis(4-chlorophenyl)-ethylenediamine, ActaCrystallographica, Section E, E63, o558-o560. (doi:10.1107/s1600536807000025)– Scopus Indexed.
  34. A.M.M. Ali, M.Z.A. Yahya, H. Bahron, R.H.Y. Subban, M.K. Harun and I. Atan, (2007) Impedance studies on plasticized PMMA-LiX [X: CF3SO3–. M(CF3SO2)2–] polymer electrolytes Materials Letters 61 2026-2029, Elsevier (doi: 10.1016/j.matlet.2006.08.008)– Scopus Indexed.
  35. K. Kassim, H. Bahron and N.H. Ismail (2007), Synthesis and Characterization of Cyclic and Acyclic Schiff Bases, Science Letters, Volume 4, Issue 1, 115-125, ISSN 1675-7785