Über die Infrarotspektren einiger Metallkomplexe des Mono- und Dimethylolharnstoffes

Coordination products of mono- and dimethyl-urea were synthesised with salts of copper, manganese, cobalt, nickel, and zink and their infrared spectra were obtained. By comparison with the pure ligands spectra it was established that the coordination with metals is accomplished through the carbonyl group oxygen.     

Difierentialthermoanalyse (DTA) und thermogravimetrische Analyse (TGA) einiger Metallkomplexe mit Benzhydroxams?ure

Ohne Zusammenfassung     

Metallkomplexe als Antikrebsmittel

The platinum complex cisplatin is in worldwide use since 1978 as anticancer agent. Disadvantages of the cisplatin therapy are both drug resistance and severe side effects. To avoid these drawbacks several strategies have been developed in tumor research. Patients treated with second‐generation platinum complexes experience already less severe side effects. Organometallic and coordination complexes with different metals can be used to target DNA as well as overexpressed proteins and enzymes in cancer cells. In contrast, delivery systems for anticancer drugs target cancer cells, while being selectively accumulated in tumor tissue.     

Metallkomplexe mit phenolischen Verbindungen

Ohne Zusammenfassung     

Über Metallkomplexe der Heteroarylformazane

Two new heteroarylformazans with two complex forming carboxy groups in the ortho position relative to the formazan chain have been synthesized. These compounds form complexes with uranyl, cobalt and nickel ions. The ratio metal/formazan of these complexes has been investigated.

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Teil der Dissertation,. Kaban, Univ. Istanbul 1975.     

über Metallkomplexe der Heteroarylformazane

Two new heteroarylformazans with two complex forming carboxy groups in the ortho position relative to the formazan chain have been synthesized. These compounds form complexes with uranyl, cobalt and nickel ions. The ratio metal/formazan of these complexes has been investigated.     

Metallkomplexe von N-substituierten 3-Imino-isoindolinonen

Metal Complexes of N-substituted 3-Imino-isoindolinones The condensation of 3-imino-isoindolinone 4 and benzimidazoles or benzthiazoles containing activated methyl-, methylen- or aminogroups ( 5 resp. 6 ), yields the iso-indolinone-ligands 1 and 2. Metal ions such as Co²⁺, Ni²⁺, Cu²⁺ and Zn²⁺ form (1:2)-complexes with these ligands of very high chemical and photochemical stabilities. The magnetic properties of these complexes indicate that the geometry around the central atoms is distorted tetrahedral. A X-ray diffraction study of one of the Co(II)-complexes confirms these findings.     

Metallkomplexe eines 1-Oxo-1,2-diphosphacyclopentanons

Coordination Compounds with an 1-Oxo-1,2-diphosphacyclopentanone 1-Oxo-1,2-diphosphacyclopentanone ( 2 ) is a ligand with three different sites for typical coordination. Thus seven types of structural different coordination compounds as well as salts can be received: 2 -W(CO)₅; ( 2 -SbCl₃)₂; 2 ^(–)-Cu⁽²⁺⁾- 2 ^(–); 2 ^(–)-Co⁽³⁺⁾(H₂O) · (OH)- 2 ^(–); (CO)₅W- 2 ^(–)-Cu⁽²⁺⁾- 2 ^(–)-W(CO)₅; (CO)₅W- 2 -SbCl₃; Cl₃Sb- 2 ^(–)-Cu⁽²⁺⁾- 2 ^(–)-SbCl₃; Cl₃Sb((CO)₅W)- 2 ^(–)-Cu⁽²⁺⁾-2^(–)-(W(CO)₅)SbCl₃; [Cu(en)₂(H₂O)₂]²⁺ ( 2 ^(–)); [Cu(en)₂(CH₃OH)₂]²⁺ [ 2 ^(–)-W(CO)₅]₂; NR₄⁽⁺⁾ 2 ^(–)     

Metallkomplexe naphthyl‐substituierter Thioharnstoffderivate

Metal Complexes of Naphthyl‐substituted Thiourea Derivatives The thiourea derivative N, N‐diethyl‐N′‐2‐naphthoylthiourea ( 1 ) and three N‐(dialkylaminothiocarbonyl)‐N′‐(1‐naphthyl)‐arylamidines ( 2 ‐ 4 ) have been synthesized and Cu^II‐, Ni^II‐ and Pd^II‐complexes of them have been prepared. According to the X‐ray structure analyses 1 with Cu^II and Ni^II under deprotonation forms neutral bis‐chelates of nearly square‐planar coordination with a cis arrangement of the O and S ligator atoms. Using their N and S atoms in 1, 3 position as ligators, 2 ‐ 4 in deprotonated form coordinate to Cu^II and Pd^II as neutral bis‐chelates, in the case of Cu^II with a distorted tetrahedral coordination. Pd^II is coordinated square planar and has, probably due to the spatial influence of the 1‐naphthyl groups, a trans arrangement of the N and S ligator atoms.