Macedonian Journal of Chemistry and Chemical Engineering Impact Factor & Information

Publisher: Society of Chemists and Technologists of Macedonia

Current impact factor: 0.53

Impact Factor Rankings

2015 Impact Factor Available summer 2016
2014 Impact Factor 0.533
2013 Impact Factor 0.31
2012 Impact Factor 0.821
2011 Impact Factor 1.079
2010 Impact Factor 0.459
2009 Impact Factor 0.2

Impact factor over time

Impact factor

Additional details

5-year impact 0.65
Cited half-life -
Immediacy index 0.05
Eigenfactor 0.00
Article influence 0.19
ISSN 1857-5552

Publisher details

Society of Chemists and Technologists of Macedonia

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
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  • Conditions
    • On open access repositories
    • Publisher's version/PDF may be used
    • Creative Commons Attribution License 3.0
    • Must link to publisher version
    • Publisher last contacted on 02/04/2014
    • All titles are open access journals
  • Classification

Publications in this journal

  • S.W. Ng ·
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    ABSTRACT: In the refinement of the crystal structure of [Cd(C12H10N4)(C15H9O2)2(CH3OH)]·0.5H2O·CH3OH and [Cd(C12H10N4)1.5(C15H9O2)2]·CH3OH, the lattice water molecule was not located by difference Fourier synthesis but was instead deduced by us-ing SQUEEZE owing to severe disorder of the water molecule in the otherwise ordered crystal structure. Similarly deduced were the two symmetry-independent methanol molecules in [Cd(C12H10N4)(C15H9O2)2(CH3OH)]·0.5H2O·CH3OH and [Cd(C12H10N4)1.5(C15H9O2)2]·CH3OH. The first coordination polymer adopts a chain motif and the second a layer motif; for both, the N-heterocycle functions as a bridge to connect adjacent metal atoms. The sol-vent molecules are presumed to reside in voids, which are themselves connected into channels. The crys-tallographic program Crystal Explorer was used in the illustration of the channels. Crystal data C44H37N4O6.5Cd: FW = 838.18, monoclinic, P21/n, a = 16.7871(4) Å, b = 26.5431(5) Å, c = 18.7034(5) Å, β = 111.915(3)°, V = 7731.7(3) Å3. Crystal data for C49H38N6O5.5Cd: FW = 911.25, monoclinic, P21/c, a = 11.0586(3) Å, b = 23.5007(6) Å, c = 17.3454(5) Å, β = 105.626(3)°, V = 4341.2(2) Å3.
    Macedonian Journal of Chemistry and Chemical Engineering 01/2015; 34(1).
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    ABSTRACT: New data are obtained for minerals from metasomatic rocks of the orogenetic zone related to the "Mixed series" metamorphic complex situated in the Pelagonian massif near the Nežilovo village, about 40 km SW of Veles, Republic of Macedonia. A specific feature of these rocks is the concentration of chalcophile elements (S, As, Sb, Zn, Pb) mainly in the form of oxides and oxysalts, whereas sulfides and sulfosalts are present only in trace amounts. Rock-forming and accessory minerals have been character-ized by electron microscopy, electron microprobe analyses and in part by X-ray diffraction and IR spec-troscopic data. Some of described minerals (Sb-rich analogue of zincohögbomite-2N6S, hydroxyplum-bobetafite, Fe3+-analogue of coronadite) are potentially new mineral species. Some genetic aspects of the formation of oxidized As-Sb-Zn-Pb-rich rocks are discussed.
    Macedonian Journal of Chemistry and Chemical Engineering 01/2015; 34(1).
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    ABSTRACT: The microstructural parameters of a crystalline sample can be determined by a proper analysis of XRD line profile broadening. The observed XRD line profile, h(ε), is the convolution of the instrumental profile, g(ε), and pure diffraction profile, f(ε), caused by small crystallite (coherent domain) sizes, by faultings in the sequence of the crystal lattice planes, and by the strains in the crystallites. Similarly, f(ε) is the convolution of the crystallite size/faulting profile, p(ε), and the strain profile, s(ε). The derivation of f(ε) can be performed from h(ε) and g(ε) by the Fourier transform method, which does not require mathe-matical assumptions. The analysis of f(ε) can be done by the Warren-Averbach method applied to the ob-tained Fourier coefficients. Simplified methods based on integral widths may also be used in studies where a good relative accuracy suffices. The relation among integral widths of f(ε), p(ε) and s(ε) can be obtained if one assumes bell-shaped functions for p(ε) and s(ε). Integral width methods overestimate both strain and crystallite size parameters in comparison to the Warren-Averbach method. The crystallite size parameter is more dependent on the accuracy in the diffraction profile measurement, than it is the strain parameter. The precautions necessary for minimization of errors are suggested through examples. The crystallite size and strain parameters obtained by means of integral widths are compared with those which follow from the Warren-Averbach method. Recent approaches in derivation of microstructure are also mentioned in short.
    Macedonian Journal of Chemistry and Chemical Engineering 01/2015; 34(1).
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    ABSTRACT: A new nickel(II) saccharinate (sac) complex containing N,N′-bis(2-hydroxyethyl)ethylenediamine (bishydeten), [Ni(bishydeten)2](sac)2, has been synthesized and characterized by elemental analysis, FTIR and single crystal X-ray diffraction. The title complex consists of a [Ni(bishydeten)2]2+ cation and two sac anions. In the complex cation, the nickel(II) ion is coordinated by two neutral bishydeten ligands, leading to a distorted octahedral NiN4O2 coordination, while both sac anions remain outside the coordination sphere. In the crystal, the complex cations and sac anions are connected by an extensive network of N–H∙∙∙N, N–H∙∙∙O, O–H∙∙∙O and C–H∙∙∙O hydrogen bonds into a three-dimensional supramolecular lattice.
    Macedonian Journal of Chemistry and Chemical Engineering 01/2015; 34(1):101-104.
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    ABSTRACT: Two new one-dimensional coordination polymers of barium(II) and strontium(II)-acesulfamato complexes such as [Ba(C4H4NO4S)2(H2O)]n (1) and [Sr(C4H4NO4S)2(H2O)]n (2) have been synthesized and their molecular structures were identified by X-ray diffraction technique. Both barium(II) and stronti-um(II) complexes crystallize in the centrosymmetric monoclinic space group P121/c1 and barium(II) and strontium(II) ions, which are surrounded by O- and N-atoms, have the coordination number of nine. Each complex forms a structure like a polymer extending parallel to the a-axis. The molecular structures of those complexes were stabilized by O-H···O and C-H···O hydrogen bonds. Besides identifying their crystallographic structures, the geometric parameters were also calculated using density functional theory (B3LYP) with 6-31G base sets for the asymmetric units of the complexes. The calculated geometrical parameters were also compared to the geometric parameters of X-ray diffrac-tion technique. Furthermore, molecular electrostatic potential maps were constructed and frontier molecu-lar orbital calculations were done for the synthesized complexes. The results of the experimental and the-oretical IR studies were also compared.
    Macedonian Journal of Chemistry and Chemical Engineering 01/2015; 34(1).
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    ABSTRACT: As a tribute to the major contribution made by Academician Gligor Jovanovski to the field of Mineralogy in Macedonia, this paper promotes the potential role that minerals can have as a future source of inspiration in identifying novel materials for sustainable energy storage in general, and for advanced Li-ion batteries in particular. We exemplify this by indicating the innovative use of polyanions in novel Li-ion battery cathode materials such as the olivine lithium iron phosphate (LiFePO4), and in an even newer material - the orthosilicate lithium iron silicate (Li2FeSiO4). Both materials have strong intrinsic links to mineralogy - and illustrate well how mineralogy can lead to new material breakthroughs in this and other areas of modern technology.
    Macedonian Journal of Chemistry and Chemical Engineering 01/2015; 34(1).
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    ABSTRACT: The elemental composition of a multiphase material can be obtained by means of chemical and spectroscopic techniques. However, these techniques face a great difficulty in distinguishing the chemical identity of the phases present in the material and in derivation of the fractions of particular phases. X-ray powder diffraction seems to be an ideal technique for the analysis of a multiphase material. Each crystal-line phase of the material gives its characteristic diffraction pattern independently of the other phases; this fact makes it possible to identify the phase of interest and to determine its fraction. The intensities of dif-fraction lines of a given phase are proportional to its fraction and an appropriate quantitative analysis can be performed after the application of the correction for the absorption of X-rays in the material. The principles of quantitative X-ray diffraction phase analysis of a multiphase material are pre-sented, with a special attention paid to the doping methods. The following methods are described: (i) de-termination of the fraction of a phase using repeated dopings, (ii) determination of the fraction of a phase using a single doping, (iii) simultaneous determination of the fractions of several phases using a single doping; (iv) determination of the fraction of the dominant phase. The applicability of the doping methods is stated and the optimum conditions to minimize systematic errors are discussed. Recent approaches in quantitative X-ray diffraction phase analysis are also mentioned in short.
    Macedonian Journal of Chemistry and Chemical Engineering 01/2015; 34(1).
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    ABSTRACT: Two merocyanine dyes containing a malononitrile or a ketone functional group as electron-acceptors, and a piperidine group as electron-donor were synthetized and crystallized as pigments. The electron-donor and -acceptor moieties are linked via an octahydroanthracene skeleton, forming an elec-tronic push-pull molecular system. The crystal structure of the malononitrile compound was solved ab initio from X-ray powder diffraction data, complementing the reported structure of the ketone pigment. Both compounds show similar molecular conformations in the solid state, yet with completely different crystal packing schemes. The crystal structures were analyzed by inspecting the Hirshfeld surfaces. IR spectroscopy was applied to complement the crystallographic study. The absorption characteristics of both pigments emerge from the push-pull chemical structure, which was visualized by plotting the elec-trostatic potentials, calculated using molecular geometries as observed in the solid state. The solid-state UV-vis spectra showed peak broadening and bathochromic spectral shift as compared to the spectra re-corded in solution, depending on the polarity of the solvent molecules: The largest shifts of the spectra of solid-state pigments were observed with respect to the spectra recorded in toluene solution, whether the smallest to those in ethanol.
    Macedonian Journal of Chemistry and Chemical Engineering 01/2015; 34(1).
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    ABSTRACT: A novel methodological approach for processing electrochemical data measured under conditions of square-wave voltammetry (SWV) is proposed. The methodology takes advantage of the chronoam-perometric characteristics of the electrochemical system observed in the course of the voltammetric ex-periment, which are commonly not considered in conventional SWV. The method requires processing of a single voltammogram only, measured under given set of the potential modulation parameters (i.e. SW frequency and height of the potential pulses). The core idea is to analyze the variation of the current with time, considering the last quarter time period of each potential pulse of the potential modulation, instead of measuring the single current value from the very end of the pulses. Hence, a single point current meas-urement is replaced with a multisampling current procedure, leading to a series of new SW voltammo-grams measured at different time increments of each potential pulse. The novel method is illustrated by the theoretical analysis of a quasireversible electrode reaction of a dissolved and surface confined redox couple, as well as a reversible electrode reaction preceded by a chemical equilibrium reaction (CrEr mechanism).
    Macedonian Journal of Chemistry and Chemical Engineering 01/2015; 34(1).