Dr. Mohammed Enamullah Professor, Department of Chemistry

Research Interest

Syntheses, characterization, modeling and TDDFT analyses of chiral-organic/inorganic compounds including Spectroscopy, Stereochemistry, Catalysis, X-ray Crystallography, Tharmal Analyses, Cyclic voltametry, EPR, Magnetism and Computational Chemistry.

Journals Papers

Published Papers in Peer Reviewed Journals (* Corresponding Author)


(59) M. Enamullah*, M. A. Islam, B. A. Joy, B. Dittrich and G. J. Reiss

 Bis[N-2-(R-pyridyl)-2-oxo-1-naphthaldiminato-k2N,O]zinc(II) {R = H or 4/6-CH3} complexes: Synthesis, Spectroscopy, Thermal and X-ray analyses (submitted).

(58) M. Enamullah*, M. A. Quddus, V.Vasylyeva, S.-P Hoefert and C. Janiak

Spontaneous resolution of a D/L-chiral pseudo-tetrahedral Schiff-base zinc complex to a racemic conglomerate with C-H···O organized 41 and 43 helices (submitted).

(57) M. Enamullah*, M. A. Islam, A.-C. Kautz, and C. Janiak

Tetrakis[{(E)-2-((pyridin-2-ylimino)methyl)phenolate}copper(II)]-tetranitrateynthesis, spectroscopy, cyclic voltammetry, and molecular structure (submitted).

 (56) M. Enamullah*, A.-C Chamayou, K. S. Banu, A. Ch. Kautz,  and C. Janiak

Copper(II)-salicylaldehydate/-methoxy(pyridine-2-yl)methanolate complexes via in-situ hydrolysis of Schiff bases. Inorg. Chim. Acta, 464 (2017) 186–194.

(55) M. Enamullah*, M. A. Quddus, M. M. Rahman, and T. E. Burrow

Syntheses and characterization of copper(II)-complexes with N-2-(R-pyridyl)salicylaldiminate Schiff base ligands (R = H, 4/6-CH3). J. Mol. Struct., 1130 (2017) 765-774.


(54) M. Enamullah*, M. A. Islam, B. A. Joy and G. J. Reiß

Bis[N-2-(R-pyridyl)-2-oxo-1-naphthaldiminato-K2N^O]copper(II) (R = H, 4/6-CH3): Combined studies on syntheses, spectroscopy, cyclic voltammetry, thermal analyses, crystal structure and DFT/TDDFT

Inorg. Chem. Acta., 453, 202-209 (2016); DOI: 10.1016/j.ica.2016.08.013

(53) M. Enamullah*, M. A. Islam and C. Janiak

Rh{(η4-cod) or (PPh3)2}-Schiff  base complexes with a Z' = 2 structure: syntheses, spectroscopy, thermalanalyses and DFT/TDDFT

J. Mol. Struct., 1122, 331-340 (2016); DOI: 10.1016/j.molstruc.2016.05.093

(52) M. Enamullah*, G. Makhloufi, R. Ahmed, B. A. Joy, M. A. Islam, D. Padula, H. Hunter, G. Pescitelli* and C. Janiak*

Synthesis, X-ray and Spectroscopic Study of Dissymmetric Tetrahedral Zinc(II) Complexes from Chiral Schiff Base Naphthaldiminate Ligands with Apparent Exception to the ECD Exciton Chirality. 

Inorg. Chem., 55, 6449−6464 (2016); DOI:10.1021/acs.inorgchem.6b00403

(51) M. Enamullah*, M. A. Quddus, M.R Hasan, G. Pescitelli*, R. Berardozzi, G. Makhloufi, V. Vasylyeva and C. Janiak*

Chirality at metal and helical ligand folding in optical isomers of chiral bis(napthaldiminato)nickel(II) complexes.

Dalton Trans., 45, 667-680 (2016); DOI: 10.1039/c5dt03940a


(50) M. Enamullah*, M. K. Islam, M. A. Halim and C. Janiak

Syntheses, spectroscopy, X-ray, and DFT/TDDFT investigations of Rh(η4-cod)-enantiopure aminocarboxylate complexes.

J. Mol. Struct., 154-162, 1099 (2015); DOI:10.1016/j.molstruc.2015.06.040

(49) M. Enamullah*, M. A. Quddus, M. R. Hasan, G. Pescitelli, R. Berardozzi, G. J. Reiß and C. Janiak*

Syntheses, spectroscopy and structural analyses of dinuclear chiral-at-metal m-aqua-tetrakis{(R or S)-N-1-(Ar)ethyl-salicylaldiminato}-di-Λ- or Δ-nickel(II) complexes.

Eur. J. Inorg. Chem., 2758-2768 (2015); DOI:10.1002/ejic.201500128


(48) M. Enamullah*, M. A. Quddus, M. A. Halim, M. K. Islam, V. Vasylyeva and C. Janiak*

Switching from 4+1 to 4+2 zinc coordination number through the methyl group position on the pyridyl ligand in the geometric isomers bis[N-2-(4/6-methyl-pyridyl)salicylaldiminato-K2N,O]zinc(II).

Inorg. Chim. Acta, 427, 103-111 (2015); DOI: 10.1016/j.ica.2014.11.020

(47) M. Enamullah *, AKM Royhan Uddin, G. Pescitelli *, R. Berardozzi, G. Makhloufi, V. Vasylyeva, A-C. Chamayou and C. Janiak *

Induced chirality-at-metal and diastereoselectivity at Δ/Λ-configured distorted square-planar copper complexes by enantiopure Schiff base ligands: Combined circular dichroism, DFT and X-ray structural studies.

Dalton Trans., 43, 3313-3329 (2014); DOI:10.1039/c3dt52871e


(46) M. Enamullah * and M. K. Islam

Syntheses, spectroscopy, optical properties, and diastereoselectivity of copper(II)-complexes with chiral aminoalcohol based Schiff bases.

J. Coord. Chem., 66, 4107-4118 (2014); DOI: 10.1080/00958972.2013.861063

(45) M. Enamullah *, V. Vasylyeva and C. Janiak *

Chirality and diastereoselection of Δ/Λ-configured tetrahedral zinc(II) complexes with enantiopure or racemic Schiff base ligands.

Inorg. Chim. Acta, 408, 109-119 (2013); DOI: 10.1016/j.ica.2013.08.016


(44) M. Enamullah *, AKM Royhan Uddin, and G, Hogarth

Synthesis, spectroscopy, and X-ray structures of 3-{(R)-(Ar)-ethylimino}-1,3-dihydro-indol-2 one (Ar = C6H5, MeOC6H4, BrC6H4, 1-naphthyl), and [Rh(η4-cod){3-((R)-(Ar)-ethylimino)-3H-indol-2-olato-K 2N,O}].

J. Coord. Chem., 65, 4263-4276 (2012); DOI: 10.1080/00958972.2012.738293

(43) M. Enamullah *, A. K. M. Royhan Uddin, G. Hogarth and C. Janiak

Synthesis, spectroscopy, catalysis and crystal structures of [Rh(η4-cod){(R)-N-(Ar)ethyl-2-oxo-1-naphthaldiminato-K2N,O}] (Ar = C6H5, 3-/4-MeOC6H4, 4-BrC6H4).

Inorg. Chim. Acta, 387, 173-180 (2012); doi: 10.1016/j.ica.2012.01.013

(42) M.Enamullah *

Synthesis, spectroscopy, and catalysis of (η4-cod)Rh(I)-complexes with (R or S)-2-(salicylaldimine)-2-phenylethanol or (rac)-2-(salicylaldimine)-1-phenylethanol.

J. Coord. Chem., 65, 911-922 (2012); DOIi: 10.1080/00958972.2012.664639


(41) M. Enamullah *

Synthesis, stereochemistry and spectroscopic characterizationof [Rh(η4-cod){(R)-2-(X-benzaldimine)-2-phenylethanol-K 2N,O}](acetate) (X = H or 2,4-dimethoxy) complexes.

J. Coord. Chem., 64, 1608-1616 (2011); DOI: 10.1080/00958972.2011.576757


(40) M. Enamullah *

 Syntheses and spectroscopic studies of [Co(triphos)(chiral amino alcoholato)](BPh4) complexes, J. Coord. Chem., 63, 643-651 (2010); DOI: 10.1080/00958970903586242


(39) Md. Shah Alam, M. Rahman and M. Enamullah *

Synthetic and spectroscopic characterization of N-(Ar)salicylaldimine and bis-[N-(Ar)salicylaldiminato-K2N,O]copper(II) (Ar = 2-/4-pyrimidinyl, 2-pyrazinyl) complexes.

J. Bangladesh Chem. Soc., 22:2, 145-152 (2009).

(38) M. Enamullah * and AKM Royhan Uddin

Syntheses and spectroscopic characterization of N-(o-methylphenyl)-2-oxo-1-naphthaldimine and bis-[N-(o-methylphenyl)-2-oxo-1-naphthaldiminato-K 2N,O]M(II) (M = Ni, Cu).

J. Bangladesh Chem. Soc., 22:1, 44-54 (2009). 

(37) C. Janiak *, A-C Chamayou, AKM Royhan Uddin, M. Uddin, KS. Hagen and M. Enamullah *

Polymorphism, Chirality and helicity in [Rh{N,O}(η4-cod)] complexes with {N,O} = salicylaldiminato Schiff base or aminocarboxylato ligands.

Dalton Trans, 3698-3709 (2009) (Hot article and Front Cover); DOI: 10.1039/b820072f


(36) M. Enamullah *, AKM Royhan Uddin and M. Uddin.

Synthesis and spectroscopic characterization of Rh(I)-1,5-cyclooctadienecomplexes containing the o-aminobenzoic acid or o-aminophenol as co-ligands.

J. Bangladesh Chem.  Soc., 21:1, 28-35 (2008). 


(35) M. Enamullah *, M. Kabir and M. Uddin

 Spectroscopic studies of the low-spin neutral iron(II)-complexes with deprotonated 4-X-2,6-bis(benzimidazol-2´-yl)pyridine (X = H, OH and Cl).

J. Bangladesh Chem. Soc., 20:2, 163-171 (2007).

(34) M. Enamullah *, M. Uddin and W. Linert

Synthetic and spectroscopic characterization of Rh(I)-(S)-amino acids complexes with diphosphine and triphosphine ligands.

J. Coord. Chem., 60, 2309-2318 (2007); DOI: 10.1080/00958970701261360

(33) M. Enamullah *, A.K.M. Royhan Uddin, AC. Chamayou and C. Janiak *

Syntheses, spectroscopic studies and crystal structures of (R)-N-(Ar)ethylsalicylaldimineand [(η4-cod)Rh{(R)-N-(Ar)ethylsalicylaldiminato}], Z. Naturforsch., 62b, 807-817 (2007). 


(32) M. Enamullah *, A. Sharmin, M. Hasegawa, T. Hoshi, A-C. Chamayou and C. Janiak *

Syntheses, spectroscopic studies and crystal structures of chiral [Rh(aminocarboxylato)(η4-cod)] and chiral [Rh(amino alcohol)(η4-cod)](acetate) complexes with an example of a spontaneous resolution of a racemic mixture into Homo-Chiral Helix-Enantiomers.

Eur. J. Inorg. Chem., 2146-2154 (2006); DOI: 10.1002/ejic.200501033  


(31) M. Kabir *, A. Awwal, M. Enamullah, D. Hossain and M. Monzur Morshed.

Kinetics and activation parameters of the nucleophilic substitution reactions of 2-chloro-1-methyl-pyridinium iodide with amines.

J. Bangladesh Acd. Sci., 29:2, 217-224 (2005).

(30) M. Enamullah *, M. Hasegawa, T. Hoshi and J. Okubo.

Synthetic and spectroscopic studies of [(η4-cod)Rh(I)-amino acidato]2 complexes.

J. Bangladesh Chem. Soc., 18:2,165-173 (2005). 


(29) M. Enamullah *, M. Hasegawa, Y. Fukuda, W. Linert and T. Hoshi

Synthesis, characterization and spin-crossover behaviors of [Co(hydroxyl-carboxylato)(triphos)] complexes.

Bull. Chem. Soc. Jpn.,75, 2449-2453 (2002).

(28) M. Enamullah * and W. Linert

Formation constants and thermodynamic properties of the spin-crossover Fe(II)-2,6-bis-(benzimidazol-2´-yl)pyridine complex.

Thermochimica Acta, 388, 401-406 (2002). 


(27) S. C. Mojumdar, M. Enamullah *, M. Melnik, E. Jona

Preparation and properties of Mg(II) complexes with acetic acid and it’s derivatives.

J. Bangladesh Chem.  Soc., 14:1, 41-45 (2001).

(26) S. C. Mojumdar, M. Enamullah * and M. Melnik

Synthesis, thermoanalytical and IR spectral properties of Mg(II) complex with methyl-3-pyridyl carbamate.

18th Conf. Coord. & Bioinorg. Chem., Conf. Ed, 5, 415 (2001), Slovak Technical University Press, Bratislava, Slovakia.

(25) Md. Monzu, M. Kabir *, M. Enamullah, A. Awwal

Kinetics and mechanism of the nucleophilic substitution reactions of 2-chloro-1-methylpyridinium iodide with primary and secondary amines.

Ind. J. Chem., 40B, 32-36 (2001). 


(24) M. Enamullah *, S. C. Mojumdar and M. Melnik

Preparation and properties of Mg(II) complexes with halogenacetic acids, N, N-diethylnicotinamide and aspirin.

J. Bangladesh Acd. Sci., 24:1, 15-23 (2000). 

(23) M. Enamullah *, M. N. Uddin, D. Hossain, M. Kabir, A. Awwal and W. Linert *

Protonation constants and solvent dependent spin-crossover behaviors of iron(II)-2-(2’-pyridin)benzimidazole complex.

J. Coord. Chem., 49, 171-180, 2000.

(22) M. Enamullah *, D. Hossain and A. Awwal

Effects of temperatures on imino-hydrogeni in 2,6-bis-(benzimidazol-2´-yl)pyridineinduced by zinc(II) ion.

J. Bangladesh Acad. Sci., 24:1, 81-86, 2000. 


(21) M. Enamullah *

Spin-crossover behaviour of iron(II)-2,6-bis-(benzimidazol-2´-yl)pyridinecomplex in mixed   solvent (50% (v/v) PDC/MeOH).

J. Bangladesh Acad. Sci. ,22:1, 63-69 (1998). 

(20) M. Enamullah * and W. Linert *

Synthesis and characterization of spin-free [Co2(N, N´-tetra(4-antipyrylmethyl)-1,2-diaminoethane)Cl4] complex.

Monatsh. Chem., 129, 3-7 (1998).

(19) M. Enamullah *

Stability constants of spin-crossover [2-(2´-pyridyl)benzimidazolato]iron(II) complex.

J. Coord. Chem., 45, 23-29 (1998). 


(18)  M. Enamullah *

Acidity of the imino-hydrogen in 2,6-bis-(benzimidazol-2´-yl)pyridine increaseson co-ordination to the metal(II) ions: A vibrational spectroscopic studies.

J. Bangladesh Chem. Soc., 10:2, 147-152 (1997).

(17) M. Enamullah *

Studies on spin-crossover iron(II)-2,6-bis-(benzimidazol-2´-yl)pyridine complexin propanediol-1,2-carbonate.

J. Coord. Chem., 42, 231-239 (1997). 

(16) M. Enamullah *, F. Renz, U, El-Ayaan, G. Wiesinger and W. Linert *

Experimental spin-crossover investigations on charged and neutral iron(II) complexes with 4-substituted-2,6-bis-(benzimidazol-2´-yl)pyridine, Vib. Spectros., 14, 95-104 (1997). 


(15) M. Enamullah *, A. Awwal, D. Hossain and M. Kafil Uddin

Solvent effect on the kinetics of the Menschutkin reactions of tertiary amine with methyl iodide.

JahangirnagarUniv. J. Sci., 20, 55-60 (1996). 

(14) M. Enamullah * and A. Awwal

FT-IR (4000-400cm-1) studies on [Fe(X-bzimpy)2](ClO4)2·xH2O (X-bzimpy = 4-X-2,6-bis-(benzimidazol-2´-yl)pyridine; X = H, Cl, OH) complexes.

Jahangirnagar Univ. J. Sci., 20, 47-54 (1996). 

(13) M. Enamullah *

Studies on the high-spin Co(II)-2,6-Bis(benzimidazol-2´-yl)pyridine complex, Jahangirnaga Univ. J. Sci.,20, 21-28 (1996).

(12) M. Enamullah * and W. Linert *

Substituent- and solvent-effects on the stability of iron(II)-4-X-2,6-bis-(benzimidazole-2´-yl)pyridine complexes showing spin-crossover in solution.

J. Coord. Chem., 40, 193-201 (1996).

(11) M. Enamullah *

Spin-transition behaviour of iron(II)-4-Cl-2,6-bis-(benzimidazol-2´-yl)pyridine complex.

J. Bangladesh Chem. Soc., 9:2, 129-137 (1996).

(10) M. Enamullah * and W. Linert *

Spin-transition of [Fe(OH-bzimpy)2](ClO4)2 induced by deprotonation.

J. Coord. Chem., 38, 337-346 (1996). 


(9) M. Enamullah *

Studies on spin-equilibria of iron(II)-4-OH-2,6-bis-(benzimidazol-2´-yl)pyridine complex, Jahangirnagar Univ. J. Sci.19, 56-63 (1995). 

(8) M. Enamullah * and W. Linert *

Spin-crossover of [Fe(Cl-bzimpy)2](ClO4)2 induced by deprotonation.

J. Coord. Chem., 35, 325-335 (1995). 

(7) M. Enamullah *, W. Linert and V. Gutmann *

Vibrational spectroscopy on iron(II) spin-crossover complexes with 4-X-2,6-bis-(benzimidazole-2´-yl)-pyridine.

Vib. Spectros., 9:3, 265-271 (1995).


(6) M. Enamullah *,  W. Linert, V. Gutmann * and R. F. Jameson

Spin-transition behaviour of transition metal complexes with 2,6-bis-(benzimidazole-2´-yl)-pyridine induced by deprotonation of the complex.

Monatsh. Chem., 125, 1301-1309 (1994).

(5) M. Enamullah, W. Linert, V. Gutmann and R. F. Jameson

Spin-crossover complexes in solution. III. Substituent- and solvent effects on thespin-equilibrium of 4-substituted Iron(II)-2,6-bis-(benzimidazole-2´-yl)-pyridine systems.

Monatsh. Chem., 125, 661-670 (1994). 


(4) M. Enamullah * and W. Linert *

Stability constants of transition metal complexes with oxine and its derivatives.

J. Indian. Chem. Soc., 69, 36-37 (1992). 

(3) M. Enamullah, Mahmooda. G. Ahmed and F. Akhtar *

Proton-ligand formation constants of some quinoline derivatives and 3-hydroxyquinoxaline-2-carboxylic acid at different temperature and ionic strength.

J. Bangladesh Sci. Ind. Res., 27:1-2, 51-59 (1992). 


(2) M. Enamullah *, Mahmooda G. Ahmed and F. Akhtar

Formation constants and thermodynamic parameters of divalent Zinc, Nickel, Cobalt and Cadmium complexes of Phthalic acid.

J. Bangladesh Chem. Soc., 4:2, 129-136 (1991).


(1) M. Enamullah, Mahmooda G. Ahmed * and F. Akhtar

Formation constant and thermodynamic parameter of Cu(II) and Zn(II) complexeswith 2-methyl-8-hydroxyquinoline.

Nuclear Sci. Appls., 2:1, 57-61 (1990).



Published Book


Published by AAGUB, DAAD, Germany.

A chapter written by M. Enamullah on "Electrochemical reduction of carbon dioxide (CO2) to Sustainable Energy - A contribution towards prevention of Climate ChangeĀ, p 9-21 (2012).