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  • 1980-1984  (4)
Source
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Preparation and characterization of divalent metal ion complexes ofN-2-picolyl-N-phenylthiourea (1983)
    Springer
    Transition metal chemistry 8 (1983), S. 304-308 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary New complexes ofN-2-picolyl-N′ -phenylthiourea (HPPT) have been prepared employing a number of different divalent metal ion salts. The resultant CoII, NiII, and CuII complexes, which generally involve coordination of HPPT, except for the CuII halides which have a deprotonated ligand, have been characterized by partial elemental analysis, molar conductivity and spectral (i.r., u.v.-vis., and e.s.r.) studies. HPPT is an NN bidentate ligand while the deprotonated form serves as an NNS bridging tridentate ligand. The complexes undergo partial or total decomposition in the solvents in which they are soluble. The compounds [Cu(HPPT)2X2] have resolved g∥ features in their powder spectra indicating that magnetic dilution has occurred.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00620876
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A reassessment of the bonding of the nitrone function in copper(II) complexes of some 2-hydroxy-1-naphthylnitrones (1983)
    Springer
    Transition metal chemistry 8 (1983), S. 317-318 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00620880
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Synthesis and spectroscopic studies of copper(II) complexes derived fromN-2-pyridyl-N-phenylthiourea (1983)
    Springer
    Transition metal chemistry 8 (1983), S. 312-315 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary N-2-pyridyl-N′-phenylthiourea (HPyPt) complexes of copper(II) have been synthesized and characterized by analytical and spectroscopic (i.r., u.v.-vis., n.m.r. and e.s.r.) studies. Two types of complexes have been isolated; one involving the neutral HPyPt ligand (e.g., [Cu(HPyPT)Br2]) and the other the deprotonated PyPT (e.g., [Cu(PyPT)H2O](ClO4)). The first type has the ligand behaving in a bidentate manner coordinatingvia the (NH′) and the pyridyl nitrogens in case of the halide complexes. The second type has the ligand serving as a NN-bidentate with the sulfur atom bridging to an adjacent copper(II) to form a polymeric structure. This behavior is suggested for the polyatomic anion complexes in which a water molecule completes the coordination number to four about the copper ion. Spectral studies suggest distorted octahedral geometry for the copper(II) chlorides, square pyramidal structure for the copper(II) bromide dimer and a distorted tetrahedral structure is envisioned for the polyatomic anion complexes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00620878
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    N-butyl-,N-iso-butyl-andN-sec-butyl-2-picolinamineN-oxide complexes derived from copper(II) salts of polyatomic anions (1984)
    Springer
    Transition metal chemistry 9 (1984), S. 412-416 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary N-butyl-,N-iso-butyl- andN-sec-butyl-2-picolinamineN- oxide complexes have been prepared from copper(II) perchlorate, tetrafluoroborate and nitrate. Violet solids were isolated from the first two salts while complexes isolated from the nitrate salt were blue green or blue. The ligands coordinatevia both theN-oxide oxygen and the amine nitrogen to give bis (ligand) complexes and only in the case of the nitrate solids is there interaction between the copper(II) centre and the polyatomic anion. Resolution of the g∥ feature in the powder spectra of several of these complexes results from the bulkiness of the butyl groups and therefore dilution of the copper(II) centers. In comparison to the previously studied 2 picolinamineN-oxides with lower alkyl substituents, the complexes have stronger in-plane bonding by the ligands.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00624788
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    Paper (German National Licenses)
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