Zeitschrift fur Naturforschung B (Z NATURFORSCH B)

Publisher: Max-Planck-Gesellschaft zur Förderung der Wissenschaften

Journal description

Zeitschrift für Naturforschung B (Chemical Sciences) is an international scientific journal which publishes original papers, microreviews, and letters from all areas of inorganic chemistry, solid state chemistry, coordination chemistry, molecular chemistry, and organic chemistry.

Current impact factor: 0.74

Impact Factor Rankings

2015 Impact Factor Available summer 2016
2014 Impact Factor 0.744
2013 Impact Factor 0.772
2012 Impact Factor 0.899
2011 Impact Factor 0.864
2010 Impact Factor 0.816
2009 Impact Factor 0.953
2008 Impact Factor 0.852
2007 Impact Factor 0.77
2006 Impact Factor 0.825
2005 Impact Factor 0.798
2004 Impact Factor 0.647
2003 Impact Factor 0.729
2002 Impact Factor 0.774
2001 Impact Factor 0.761
2000 Impact Factor 0.635
1999 Impact Factor 0.744
1998 Impact Factor 0.731
1997 Impact Factor 0.864
1996 Impact Factor 1.136
1995 Impact Factor 0.972
1994 Impact Factor 0.878
1993 Impact Factor 0.919
1992 Impact Factor 0.87

Impact factor over time

Impact factor

Additional details

5-year impact 0.69
Cited half-life >10.0
Immediacy index 0.12
Eigenfactor 0.00
Article influence 0.14
Website Zeitschrift für Naturforschung - B website
Other titles Zeitschrift für Naturforschung., Zeitschrift für Naturforschung. B, A journal of chemical sciences, Journal of chemical sciences, Chemical sciences
ISSN 0932-0776
OCLC 15363854
Material type Periodical, Internet resource
Document type Journal / Magazine / Newspaper, Internet Resource

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: A series of novel substituted 6′-(4-chlorophenyl)-3,4′-bipyridine-3′-carbonitriles with incorporated pyrazole and/or triazole moieties have been synthesized using 2-(6′-(4-chlorophenyl)-3′-cyano-3,4′-bipyridin-2′-yloxy)acetohydrazide (3) as starting material. Also, the key intermediate 3 reacted with aromatic aldehydes and tosyl chloride to give the corresponding Schiff bases and tosyl hydrazide derivatives, respectively. The antimicrobial of these newly synthesized compounds was evaluated against Bacillus subtilis as Gram positive bacteria and Trichoderma viride as a fungus; some of these compounds such as 5, 6, 7, 8, 10, 12, and 14 showed excellent activities as antimicrobial agents. Moreover, the cytotoxic activity of the most active compounds was assessed in vitro against human tumor liver cancer cell line (HEPG2); compounds 8, 10, 13a, and 14 showed potent activities relative to Doxorubicin which was used as a reference standard drug in this study.
    Zeitschrift fur Naturforschung B 10/2015;
  • Zeitschrift fur Naturforschung B 09/2015; 2015(in print).
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    ABSTRACT: The reaction of S-nicotine with hydroiodic acid in the presence of iodine gave the new polyiodide-containing salt nicotine-1,1′-diium bis(triiodide)-diiodine (1/1) (C10H16N2) [I3]2·I2 (1). The title compound has been characterised by spectroscopic methods (Raman and IR) and single-crystal X-ray diffraction. The asymmetric unit of the title structure consists of one dication, two triiodide anions, and one iodine molecule, all located in general positions in the non-centrosymmetric space group P1. One of the two crystallographically independent triiodide anions and the doubly protonated nicotinium dication form hydrogen-bonded chains along b, which are arranged parallel to each other in the ½bc plane. The second crystallographically independent triiodide anion and the iodine molecule form an I5– moiety, which is end-on connected to two symmetry-related anions resulting in polyiode zig–zag chains along the [0 1 1̅] direction. These polyiodide chains are stacked parallel to each other in the 0bc plane. The Raman spectrum of the title compound shows characteristic lines in the 50–200 cm–1 range, which are in excellent agreement with the findings derived from the crystal structure.
    Zeitschrift fur Naturforschung B 08/2015; 70(9). DOI:10.1515/znb-2015-0092
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    ABSTRACT: An acidic ionic liquid 3-methyl-2-(1-sulfobutyl)-1H-imidazolium hydrogensulfate, [BSO(3)HMIm]HSO4, was used as an efficient catalyst for the synthesis of a variety of pyrrole derivatives via a one-pot, three-component condensation of amines, nitroolefins, and 1,3-dicarbonyl compounds. Good to excellent yields of 72-96 % were obtained under reflux in ethanol. The catalyst could easily be recovered and recycled up to six times, resulting in good yields without prolonging the reaction time. This method was also efficient in large-scale preparation. The procedure could be easily expanded to a one-pot, four-component reaction. This ionic liquid-catalyzed reaction provided an environmentally friendly alternative to the synthesis of pyrrole derivatives.
    Zeitschrift fur Naturforschung B 08/2015; 70(1):29-38. DOI:10.1515/znb-2014-0108
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    ABSTRACT: Orthorhombic dysprosium orthogallate DyGaO3 and trigonal gallium orthoborate GaBO3 were synthesized in a Walker-type multianvil apparatus under high-pressure/high-temperature conditions of 8.5 GPa/1350 °C and 8 GPa/700 °C, respectively. Both crystal structures could be determined by single-crystal X-ray diffraction data collected at room temperature. The orthorhombic dysprosium orthogallate crystallizes in the space group Pnma (Z = 4) with the parameters a = 552.6(2), b = 754.5(2), c = 527.7(2) pm, V = 0.22002(8) nm3, R1 = 0.0309, and wR2 = 0.0662 (all data) and the trigonal compound GaBO3 in the space group R3̅c (Z = 6) with the parameters a = 457.10(6), c = 1419.2(3) pm, V = 0.25681(7) nm3, R1 = 0.0147, and wR2 = 0.0356 (all data).
    Zeitschrift fur Naturforschung B 07/2015; 70(4). DOI:10.1515/znb-2015-0015
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    ABSTRACT: The iron arsenide Eu3Fe2O5Fe2As2 was synthesized at 1173-1373 K in a resistance furnace and characterized by X-ray powder diffraction with Rietveld analysis: Sr3Fe2O5Cu2S2-type, I4/mmm, a = 406.40(1) pm, c = 2646.9(1) pm. Layers of edge-sharing FeAs4/4 tetrahedra are separated by perovskite-like oxide blocks. No structural transition occurs in the temperature range from 10 to 300 K. Magnetic measurements have revealed Curie-Weiss behavior with an effective magnetic moment of 7.79 muB per europium atom in agreement with the theoretical value of 7.94 muB for Eu2+. A drop in the magnetic susceptibility at 5 K indicates possible antiferromagnetic ordering. 151Eu and 57Fe M\"ossbauer spectroscopic measurements have confirmed a beginning cooperative magnetic phenomenon by showing significantly broadened spectra at 4.8 K compared to those at 78 K.
    Zeitschrift fur Naturforschung B 06/2015; DOI:10.1515/znb-2015-0087
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    ABSTRACT: The Ce3Pd6Sb5-type rare earth stannides RE3Au6Sn5 (RE = La, Ce, Pr, Nd, Sm) were synthesized by arc-melting of the elements and subsequent annealing in open tantalum crucibles within sealed evacuated silica ampoules. The polycrystalline samples were studied by powder X-ray diffraction. The structures of three crystals were refined from single crystal X-ray diffractometer data: Pmmn, a = 1360.3(9), b = 455.9(2), c = 1023.6(4) pm, wR2 = 0.0275, 1069 F2 values, 48 variables for Ce3Au6Sn5, a = 1352.4(4), b = 455.1(1), c = 1023.7(3) pm, wR2 = 0.0367, 1160 F2 values, 48 variables for Nd3Au6Sn5, and a = 1339.8(2), b = 452.80(7), c = 1012.4(2) pm, wR2 = 0.1204, 1040 F2 values, 49 variables for Sm3Au5.59(2)Sn5.41(2). One of the gold sites of the samarium compound shows a significant degree of Au/Sn mixing. The RE3Au6Sn5 structures are composed of three-dimensional [Au6Sn5] polyanionic networks with the two crystallographically independent rare earth atoms in larger cages, i.e., RE1@ Au10Sn6 and RE2@Au8Sn8. The [Au6Sn5] network is stabilized by Au-Sn (266-320 pm), Au-Au (284-301 pm) as well as Sn-Sn (320 pm; distances given for the cerium compound) interactions. Temperature-dependent magnetic susceptibility measurements reveal an antiferromagnetic ordering only for Sm3Au6Sn5, while the other compounds exhibit Curie-Weiss paramagnetism. 119Sn Mössbauer spectroscopy shows resonances in the typical range for intermetallic tin compounds where tin takes part in the polyanionic network [isomer shifts between 1.73(1) and 2.28(1) mm•s-1]. With the help of theoretical electric field gradient calculations using the WIEN2k code it was possible to resolve the spectroscopic contributions of all three crystallographically independent atomic tin sites in the 119Sn spectra of RE3Au6Sn5 (RE = La, Ce, Pr, Nd, Sm).
    Zeitschrift fur Naturforschung B 06/2015; DOI:10.1515/znb-2015-0050
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    ABSTRACT: Several samples of the solid solutions CeRu1-xPdxSn and CeRh1-xPdxSn have been synthesized by arc-melting and characterized by X-ray powder diffraction. Guinier powder patterns prove that the ZrNiAl-type structure is the dominating one, besides the CeRuSn and TiNiSi type structures. The structures of CeRu0.28Pd0.72Sn (ZrNiAl type, P6¯2m, a = 751.95(3), c = 418.70(2) pm, wR2 = 0.0274, 332 F2 values, 14 variables) and CeRh0.66Pd0.34Sn (ZrNiAl type, P6¯2m, a = 750.26(3), c = 411.59(2) pm, wR2 = 0.0533, 358 F2 values, 14 variables) were refined from single crystal diffractometer data. Magnetic measurements in combination with XANES (X-Ray Absorption Near Edge Structure) clearly proved intermediate cerium valencies for most compounds and revealed the best fitting parameters for those with the ICF model (Interconfiguration fluctuation). The electrical resistivity is also influenced by the substitutions. At low and high valence electron counts (VECs) metallic character is present, while around the VEC of CeRhSn the typical resistivity behavior for valence fluctuating compounds is observed.
    Zeitschrift fur Naturforschung B 04/2015; 70(4). DOI:10.1515/znb-2015-0003
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    ABSTRACT: A new copper(II) coordination polymer [Cu2(C5H4NCOO)2(C7H5N4)2]n (1) has been synthesized with 4-pyridinecarboxylate and 3-(pyridin-2-yl)-1,2,4-triazolyl ligands. The crystal structure shows that two neighboring copper(II) ions are coordinated with two deprotonated (anionic) 3-(pyridin-2-yl)-1,2,4-triazole ligands to form a binuclear structure. Adjacent binuclear units are linked by 4-pyridinecarboxylate anions to form a three-dimensional network structure. The magnetic, fluorescent, and electrochemical properties and thermal stability of 1 were studied. The results show that 1 exhibits antiferromagnetic interaction, and upon excitation at 318 nm, it has an intense fluorescent emission at approximately 430 nm. The electron transfer of 1 is irreversible in electrode reactions. The thermogravimetric analysis shows that 1 is stable below 240 °C.
    Zeitschrift fur Naturforschung B 04/2015; 70(4). DOI:10.1515/znb-2014-0198
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    ABSTRACT: The new intermetallic compound Sc
    Zeitschrift fur Naturforschung B 04/2015; 70(4). DOI:10.1515/znb-2014-0216
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    ABSTRACT: The title compound was prepared by reaction, in aqueous solution, of Tl2CO3 and H2C2O4·2H2O in a molar ratio of 1:2. Its crystal structure was solved by X-ray diffraction methods. It crystallizes in the monoclinic space group P21/a with Z = 2 molecules per unit cell. The oxalic acid molecule and the oxalate anion are planar, residing on crystallographic inversion centers, and linked to each other by strong O-H⋯O hydrogen bonds giving rise to a polymeric structure. The Tl(I) ion is in a distorted polyhedral coordination with nine neighboring O atoms, five of oxalate anions and four others of oxalic acid molecules. The FTIR and FT-Raman spectra of the compound were also recorded and are briefly discussed.
    Zeitschrift fur Naturforschung B 04/2015; 70(4). DOI:10.1515/znb-2014-0257
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    ABSTRACT: A new series of (2
    Zeitschrift fur Naturforschung B 04/2015; 70(4). DOI:10.1515/znb-2014-0226
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    ABSTRACT: 2,3-Dihydro-4,5-diisopropyl-1,3-dimethylimidazol-2-ylidene (6) is prepared by reduction of the corresponding thion 7a with potassium. The selenium compound 7b is obtained from 6 and selenium. In the solid state, 7a and 7b exist as their isomers, as revealed by their crystal structures.
    Zeitschrift fur Naturforschung B 02/2015; 70(2):91-94. DOI:10.1515/znb-2014-0191
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    ABSTRACT: REPd5Al2 compounds with RE = Ce-Gd as well as Y and Lu have been previously synthesized. Although some compounds with the small lanthanides also exist, the compounds with intermediate-sized rare-earth elements (RE = Tb-Yb) had not been prepared. We report on the missing members of the REPd5Al2 (RE = Tb-Yb) series as well as on the new REPt5Al2 (RE = Y, Gd-Tm, Lu) series, which we have synthesized and structurally as well as magnetically characterized. All members crystallize isostructurally in the ZrNi2Al5 type with an anti-arrangement of the T = Pd/Pt and Al atoms. YPd5Al2 and LuPd5Al2, as well as the respective platinum homologs, YPt5Al2 and LuPt5Al2, have been characterized also by Al-27 magic-angle spinning nuclear magnetic resonance spectroscopy. Consistent with the XRD analysis, the spectra indicate the existence of only one distinct Al site in the structure.
    Zeitschrift fur Naturforschung B 02/2015; 70(2):101-110. DOI:10.1515/znb-2014-0223
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    ABSTRACT: The reaction of Cu(II) nitrate with sodium 2-chlorobenzoate (NaL1) and (E)-1,2-di(pyridin-4-yl) ethene (dpe) yields a new complex [Cu(L-1)(2) (dpe)(H2O)] (1). When Zn(II) nitrate reacts with sodium 4-chlorobenzoate (NaL2) and 1,2-di(pyridin-4-yl) ethane (dpa), [Zn(L-2)(2) (dpa)]center dot CH3OH (2) is obtained. Complexes 1 and 2 have been characterized by single-crystal X-ray diffraction, IR spectroscopy, and elemental and thermogravimetric analyses. 1 shows a 3D CdS network structure with uninodal 4-connected (6(5).8) topology; complex 2 displays a chain structure.
    Zeitschrift fur Naturforschung B 02/2015; 70(2):95-100. DOI:10.1515/znb-2014-0193