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  • 1
    Digitale Medien
    Digitale Medien
    Tetraaza macrocyclic metal complexes containing a medium-sized chelate ring. 1. Syntheses and characterization of nickel(II) complexes with 1,4,7,10-tetraazacyclotetradecane, -cyclopentadecane, and -cyclohexadecane (1983)
    s.l. : American Chemical Society
    Inorganic chemistry 22 (1983), S. 950-954 
    Details
    ISSN: 1520-510X
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/ic00148a020
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  • 2
    Digitale Medien
    Digitale Medien
    Direct cycloauration of 1-(2-pyridylamino and 2-pyrimidinylamino)naphthalene and 2-(p-toluidino)quinoline with sodium tetrachloroaurate(III) (1999)
    Springer
    Transition metal chemistry 24 (1999), S. 449-453 
    Details
    ISSN: 1572-901X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract 1-(2-Pyridylamino and 2-pyrimidinylamino)naphthalene (abbreviated as Hpyn and Hpmn, respectively) and 2-(p-toluidino)quinoline (Htlq) were directly cycloaurated with Na[AuCl4] to give [AuCl2L] (L = pyn, pmn, or tlq). These complexes were characterized spectroscopically and the square planar structure of [AuCl2(pmn)] was determined by X-ray analysis. The naphthalene ring was aurated at position 2, forming a six-membered auraheterocycle with concomitant coordination of the pyrimidine-N atom. The trans influence of the carbon donor was clearly reflected in the Au–Cl bond lengths; 2.372(2) trans to C and 2.275Å trans to N. Similar square planar structures were suggested for the other two complexes.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1006979503280
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  • 3
    Digitale Medien
    Digitale Medien
    Convenient synthesis of 2-(2-pyridyl)-1, 3-diaminopropane, and its copper(II), nickel(II), and cobalt(III) complexes (1987)
    Springer
    Transition metal chemistry 12 (1987), S. 497-500 
    Details
    ISSN: 1572-901X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary 2-(2-Pyridyl)-1, 3-propanediol was converted into the diacetate, which was then condensed with phthalimide. The product was hydrolyzed with hydrochloric acid to give 2-(2-pyridyl)-1, 3-diaminopropane. The free amine gave 1∶2 complexes with copper(II), nickel(II), and cobalt(III), which were characterized spectroscopically and magnetically. Features of the amine as a ligand are discussed. A few related complexes were also studied.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01023833
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  • 4
    Digitale Medien
    Digitale Medien
    Cyclopalladation of N,N,N′,N′-tetramethylisophthalthioamide (1995)
    Springer
    Transition metal chemistry 20 (1995), S. 528-532 
    Details
    ISSN: 1572-901X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary N,N,N′,N′-Tetramethylisophthalthioamide (Hmpt) was cyclopalladated with PdCl2 in hot dimethylsulphoxide to give [PdCl(mpt)]. The structure was determined by X-ray analysis. The thioamide is metallated at C(2) to act as an S528-01C528-02S tridentate anionic ligand. There is appreciable steric repulsion between the benzene ring H(4, 6) and the dimethylamino groups. The hydrogens and the methyl groups mutually deviate from the coordination plane in opposite directions. The stability of the fused 5,5-membered chelate ring formed by the S528-03C528-04S ligand seems to overcome the steric hindrance. Derivatives were prepared by replacement of the chloride ion with iodide, diethyldithiocarbamate, 4-tert-butylpyridine, or tri-n-butylphosphine, and characterized spectroscopically. The S528-05C528-06S-fused chelate ring was maintained in these derivatives.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00136414
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  • 5
    Digitale Medien
    Digitale Medien
    Synthesis of organo-platinum(II) and -palladium(II) complexes ofN-phenyl- andN-(p-Tolyl)pyrazole (1975)
    Springer
    Transition metal chemistry 1 (1975), S. 10-13 
    Details
    ISSN: 1572-901X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary When platinum(II) chloride dissolved in acetic acid containing concentrated hydrochloric acid was refluxed withN-phenylpyrazole(liphpz) andN-(p-tolyl)pyrazole (Htlpz), complexes of composition [Pt(N-C)Cl]2 (N-C = phpz, tlpz) were obtained, in which phpz and tlpz are coordinated through nitrogen and carbon forming a five membered metallocycle. Similar palladium(II) complexes [Pd(N-C)Cl]2 were easily prepared by the reaction of palladium(II) chloride with Hphpz and Htlpz in methanol in the presence of lithium chloride. These [M(N-C)CI]2 complexes reacted with tri-n-butylphosphine (PBu3) and pyridine (py) to give the adducts [M(N-C)ClL](L = PBu3, py). Ethylenediamine(en) and acetylacetone(Hacac) gave IPd(phpz)(en)]Cl and [Pd(phpz)(acac)] respectively. These new complexes are characterized by means of1H-n.m.r. and i.r. spectra, and probable structures are proposed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01753073
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  • 6
    Digitale Medien
    Digitale Medien
    Synthesis of copper(II) and nickel(II) triazacycloalkane complexes (1976)
    Springer
    Transition metal chemistry 1 (1976), S. 70-74 
    Details
    ISSN: 1572-901X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary Copper(II) and nickel(II) complexes of triazacycloalkanes (pqr-cy), with p, q, r = 2–6, have been prepared and characterized by means of electronic and i.r. spectroscopy, and by magnetic measurements. With nickel(II) mononuclear octahedral complexes [Ni(pgr-cy)2](CI04)2 are formed, but for copper(II) mononuclear octahedral complexes were obtained only for 222-cy and 223-cy. The other ligands gave copper(II) complexes of the type [Cu(pgr-cy)CI]CIO4, [Cu(pgr-cy)OH]ClO4, Or [Cu(pgr-cy)CI1/2OH1/2]ClO4. The hydroxy complexes have low magnetic moments and binuclear hydroxy bridged structures are proposed.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01385945
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  • 7
    Digitale Medien
    Digitale Medien
    Cobalt(III), copper(II), and nickel(II) complexes of 1-thia-4,7-diazacyclononane-S-oxide (1985)
    Springer
    Transition metal chemistry 10 (1985), S. 382-384 
    Details
    ISSN: 1572-901X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary The title complexes [ML2]n+=CoIII, CuII, NiII; L=1-thia-4,7-diazacyclononane-S-oxide) have been prepared and characterized spectroscopically. The sulphoxide group is coordinated through the oxygen atom and the complexes have atrans-O,O geometry. The nickel(II) complex of bis(2-amino-ethyl)sulphoxide has also been studied.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00618848
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  • 8
    Digitale Medien
    Digitale Medien
    Cyclometallation ofN, N-dimethyl-3-furancarbothioamide with palladium(II), platinum(II), ruthenium(II) and rhodium(III) (1990)
    Springer
    Transition metal chemistry 15 (1990), S. 366-370 
    Details
    ISSN: 1572-901X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary N, N-Dimethyl-3-furancarbothioamide (Hbft) was cyclometallated with Li2PdCl4, K2PtCl4, RuCl2(CO)3, and RhCl (PBu3)2 (PBu3=tri-n-butylphosphine) to give, respectively, PdCl(bft), PtCl(bft), RuCl(bft)(CO)2, and RhCl2 (bft)(PBu3)2. These and some of their derivatives were characterized spectroscopically. Cyclometallation occurs regioselectively at position 2 of the furan ring to give a five-membered metallaheterocycle, along with Secoordination of the thioamide group. When the position 2 of the furan ring is blocked by a methyl group,N, N-dimethyl-2-methyl-3-furancarbothioamide (Hmft) is, in similar conditions, cyclopalladated at the N−Me substituout of the thioamide group, the furan ring being left intact. Position 4 of the furan ring of both Hbft and Hmft is unreactive toward cyclometallation.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01177463
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  • 9
    Digitale Medien
    Digitale Medien
    Synthesis of cyclopalladated 2-(1-pyrrolyl)pyrimidine derivatives (1987)
    Springer
    Transition metal chemistry 12 (1987), S. 1-3 
    Details
    ISSN: 1572-901X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary 2-(1-Pyrrolyl)pyrimidine(Hprpm) is cyclopalladated with lithium tetrachloropalladate in methanol in the presence of sodium acetate to give PdCl(prpm). This complex reacts with dimethylsulfoxide(dmso), pyridine(py). tri-n-butylphosphine(PBu3), tri-p-tolylphosphine(Ptol3), triphenylarsine(AsPh3), and acetylacetone(Hacac) to give PdCl(prpm)L (L=dmso, py, PBu3, Ptol3, AsPh3) and Pd(prpm)(acac), respectively. These complexes were characterized spectroscopically. The deprotonated ligand, prpm, is cyclopalladated and coordinated through pyrimidine-N and pyrrole-2C atoms to form a five membered palladaheterocycle.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01023116
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  • 10
    Digitale Medien
    Digitale Medien
    [(R)-2-Methyl-1,4,7-triazacyclononane] [1,1,1-tris(aminomethyl)ethane]-cobalt(III) and some Mono[(R)-2-methyl-1,4,7-triazacyclononane]-cobalt(III) Complexes (1980)
    Springer
    Transition metal chemistry 5 (1980), S. 269-271 
    Details
    ISSN: 1572-901X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary [(R)-2-Methyl-1,4,7-triazacyclononane][1,1,1-tris(aminomethyl)ethane]cobalt(III) has been prepared and separated into two isomers which show weak Cotton effects in the1A1→1T1 region (d-electron transition) compared with that of bis[(R)-2-methyl-1,4,7-triazacyclononane]cobalt(III). The effect is comparable to that of tetraammine[(R)-1,2-diamino propane]cobalt(III). The circular dichroism spectra of the mono complex change markedly upon addition of sodium sulphate. The chelate rings are more flexible in the mono than in the bis complex. Some other related mono[(R)-2-methyl 1,4,7-triazacyclononane]cobalt(III) and [(R)-2-methyl-1,4,7 triazacyclononane][1,1,1-tris(aminomethyl)ethaneI nickel (II) complexes have also been prepared and characterized.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01396935
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